Merge changes from topic "apply"
* changes:
ApplyCommand: fix "no newline at end" detection
ApplyCommand: handle completely empty context lines in text patches
ApplyCommand: use byte arrays for text patches, not strings
ApplyCommand: support binary patches
ApplyCommand: add a stream to apply a delta patch
ApplyCommand: add streams to read/write binary patch hunks
ApplyCommand: add a base-85 codec
ApplyCommand: convert to git internal format before applying patch
diff --git a/org.eclipse.jgit.test/.settings/org.eclipse.core.resources.prefs b/org.eclipse.jgit.test/.settings/org.eclipse.core.resources.prefs
index 6a9621d..cddb99d 100644
--- a/org.eclipse.jgit.test/.settings/org.eclipse.core.resources.prefs
+++ b/org.eclipse.jgit.test/.settings/org.eclipse.core.resources.prefs
@@ -1,5 +1,6 @@
-#Sat Dec 20 21:21:24 CET 2008
eclipse.preferences.version=1
+encoding//tst-rsrc/org/eclipse/jgit/diff/umlaut.patch=ISO-8859-1
+encoding//tst-rsrc/org/eclipse/jgit/diff/umlaut_PostImage=ISO-8859-1
encoding//tst-rsrc/org/eclipse/jgit/patch/testGetText_BothISO88591.patch=ISO-8859-1
encoding//tst-rsrc/org/eclipse/jgit/patch/testGetText_Convert.patch=ISO-8859-1
encoding//tst-rsrc/org/eclipse/jgit/patch/testGetText_DiffCc.patch=ISO-8859-1
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/.gitattributes b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/.gitattributes
index c5831d9..28caa2f 100644
--- a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/.gitattributes
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/.gitattributes
@@ -1,3 +1,5 @@
*.patch -crlf
*Image -crlf
*.out -crlf
+delta* -text
+literal* -text
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf.patch
new file mode 100644
index 0000000..01eb0b9
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf.patch
@@ -0,0 +1,9 @@
+diff --git a/crlf b/crlf
+index 9206ee6..95dd193 100644
+--- a/crlf
++++ b/crlf
+@@ -1,3 +1,3 @@
+ foo
+-fie
++bar
+ fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2.patch
new file mode 100644
index 0000000..5a62104
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2.patch
@@ -0,0 +1,9 @@
+diff --git a/crlf2 b/crlf2
+index 05c1c78..91e246d 100644
+--- a/crlf2
++++ b/crlf2
+@@ -1,3 +1,3 @@
+ foo
+-fie
++bar
+ fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PostImage
new file mode 100644
index 0000000..91e246d
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PostImage
@@ -0,0 +1,3 @@
+foo
+bar
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PreImage
new file mode 100644
index 0000000..05c1c78
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf2_PreImage
@@ -0,0 +1,3 @@
+foo
+fie
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3.patch
new file mode 100644
index 0000000..b155148
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3.patch
@@ -0,0 +1,8 @@
+diff --git a/crlf3 b/crlf3
+index e69de29..9206ee6 100644
+--- a/crlf3
++++ b/crlf3
+@@ -0,0 +1,3 @@
++foo
++fie
++fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PostImage
new file mode 100644
index 0000000..05c1c78
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PostImage
@@ -0,0 +1,3 @@
+foo
+fie
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PreImage
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf3_PreImage
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4.patch
new file mode 100644
index 0000000..0cf6063
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4.patch
@@ -0,0 +1,9 @@
+diff --git a/crlf4 b/crlf4
+new file mode 100644
+index 0000000..9206ee6
+--- /dev/null
++++ b/crlf4
+@@ -0,0 +1,3 @@
++foo
++fie
++fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4_PostImage
new file mode 100644
index 0000000..05c1c78
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf4_PostImage
@@ -0,0 +1,3 @@
+foo
+fie
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PostImage
new file mode 100644
index 0000000..91e246d
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PostImage
@@ -0,0 +1,3 @@
+foo
+bar
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PreImage
new file mode 100644
index 0000000..05c1c78
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/crlf_PreImage
@@ -0,0 +1,3 @@
+foo
+fie
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta.patch
new file mode 100644
index 0000000..8485530
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta.patch
@@ -0,0 +1,8 @@
+diff --git a/delta b/delta
+index b4527005bf9e4da2dd1d7185b51bdac623a4218f..8b370bb5f2bc3261b6b62e80d6edd784a61ec225 100644
+GIT binary patch
+delta 14
+ScmZp0Xmwa1z*+$U3j_csN(Dmz
+
+delta 12
+TcmZp5XmD5{u!xa=5hEi28?FP4
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PostImage
new file mode 100644
index 0000000..8b370bb
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PostImage
Binary files differ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PreImage
new file mode 100644
index 0000000..b452700
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/delta_PreImage
Binary files differ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine.patch
new file mode 100644
index 0000000..18c80c4
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine.patch
@@ -0,0 +1,10 @@
+diff --git a/emptyLine b/emptyLine
+index 1fd3fa2..45c2c9b 100644
+--- a/emptyLine
++++ b/emptyLine
+@@ -1,4 +1,4 @@
+ foo
+
+-fie
++bar
+ fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PostImage
new file mode 100644
index 0000000..45c2c9b
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PostImage
@@ -0,0 +1,4 @@
+foo
+
+bar
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PreImage
new file mode 100644
index 0000000..1fd3fa2
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/emptyLine_PreImage
@@ -0,0 +1,4 @@
+foo
+
+fie
+fum
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello.patch
new file mode 100644
index 0000000..f015a38
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello.patch
@@ -0,0 +1,16 @@
+diff --git a/hello b/hello
+index b6fc4c6..0abaeaa 100644
+--- a/hello
++++ b/hello
+@@ -1 +1 @@
+-hello
+\ No newline at end of file
++bye
+\ No newline at end of file
+diff --git a/yello b/yello
+index 391a8cb..d1ed081 100644
+--- a/yello
++++ b/yello
+@@ -1 +1 @@
+-yello
++yellow
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PostImage
new file mode 100644
index 0000000..0abaeaa
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PostImage
@@ -0,0 +1 @@
+bye
\ No newline at end of file
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PreImage
new file mode 100644
index 0000000..b6fc4c6
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/hello_PreImage
@@ -0,0 +1 @@
+hello
\ No newline at end of file
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal.patch
new file mode 100644
index 0000000..c8811d5
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal.patch
@@ -0,0 +1,126 @@
+diff --git a/literal b/literal
+index 799df8578e3cae8a5e979182391b8e9a6a3deded..74e4201af6378ac87bf9e118fbab6553c7fd355c 100644
+GIT binary patch
+literal 5389
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+cxguN4kni(NU3<6%{;31JJp(*$x^uGr9fGaZv;Y7A
+
+literal 1629
+zcmV-j2BP_iP)<h;3K|Lk000e1NJLTq001BW001Be1^@s6b9#F800004b3#c}2nYxW
+zd<bNS000IQNkl<ZScS!xeQcH08Nh$fdGGB9P;Q}RCD0F7u}~l_3X>XOp-ouEG7tw0
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+z-b-(9d+9KXPx9t{&pFR|p5ODF^FHT&;Y${|kx3oD%S#{awv*l7K)tMQzWRR$@NLb_
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+zHmmCQ1byyU`lD^F&Xm<pKK62+wdxsmqG|_L|6&~1bD!4kKAp&iGu%LLdCpHn>|TNV
+z%8R3a_|Tzmm#*3P@Q-HSUYM1eH!<b#!H-eZVZxGBjLfoXADrNsadU=e>c3jMs;&&F
+z8VCRQ^d#Seu9v{M5A2zz4}Ep>n<uhf6p_p+1vzZn`55CfJnY+hl#T1RV8b?1fPFTV
+zMq{}1RLvXzNtgju#D6Av7dYQX?EYncy0!eD=hJtHNE$$UTQ~nWa)NIxE}{6=0&;V+
+zNSKLeLKv&c>a1}yj<<B4tsNF%LuSqsh<Qk$W5YWI51(ur^O}gH4%BIH@8;;=D_OL-
+zgyP!@m^v+w?3^qDfgml-9f=^^DlE+!TezpC>$BEqf8?QeYhH<1JqFP0=f?}mZ~v(g
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+z3RR6+FmIp}5m(&$ue@g=bLJKRFlTN7-&`_x$UWlocgCh)3Al~C9R)~fZF~*18f4VZ
+z7oA&Ukw3@K+7SLg7mjhqTqW}hV+`Lhzc5b6=kLU7I5v9W<&&Sk(HI4gO@x470;o9m
+zY+rTyJynfaG+&^Lp59A<M5C)XcqYbh#lf@DF@T<{7x4#s21TzuZbDB++R+zw^S<u0
+z;g3DVz_f{JftkB1C;cKAHg^r29JT@cfi7H53U1dZYR<KAsi_ldm7Uv;a`aFYDEI>1
+zbX{p6Z2g0st1+xPRr~fQk-nI>L$^#A<JHs;1&T!MQ?sAF12H_pkRrHUeIPC;nNZkA
+zAlOSN><5PaL=!6;PSwBuOsthb;@vtaN3H8!fg-Rw7QQgI>Pk?49a|gzM^OzTtUX=(
+z<{t+S#TiXq)6|eE-gzSI0rP_+YmYB4y}5I>Ds?yLyvmA{4domX6nRy|Tb{c@gw3Go
+zSAy>Q%C;02*syDzNaO$;UaV@p5uVP-xx6jWU($8IpY(BDzOQ7j6qV%)(*@c8YURW;
+zzpcp2S4#n^S%{1S+QBwkHC1k7_I_Hk`;+V09uYtc%=Ww#?-e@}G}|!}PU;OD{-Qsp
+bU%LDkMDBWX&Ru`<00000NkvXXu0mjfJA@b~
+
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PostImage
new file mode 100644
index 0000000..74e4201
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PostImage
Binary files differ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PreImage
new file mode 100644
index 0000000..799df85
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_PreImage
Binary files differ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add.patch
new file mode 100644
index 0000000..bb6a9e4
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add.patch
@@ -0,0 +1,40 @@
+diff --git a/literal_add b/literal_add
+new file mode 100644
+index 0000000000000000000000000000000000000000..799df8578e3cae8a5e979182391b8e9a6a3deded
+GIT binary patch
+literal 1629
+zcmV-j2BP_iP)<h;3K|Lk000e1NJLTq001BW001Be1^@s6b9#F800004b3#c}2nYxW
+zd<bNS000IQNkl<ZScS!xeQcH08Nh$fdGGB9P;Q}RCD0F7u}~l_3X>XOp-ouEG7tw0
+zrz1-=F%F0OAZ*Bt%4AWe%cd6G%m`sY6u$yfhB9DOrfkevkPjQ|7bz{Y^t;geeV+Z%
+z-b-(9d+9KXPx9t{&pFR|p5ODF^FHT&;Y${|kx3oD%S#{awv*l7K)tMQzWRR$@NLb_
+zw;H}v)GQIf6%3j8H~%fa;jd>h$695QRWckW+^S($6E4nXW;Y+LsHg~iVF2&*`MKhR
+zHmmCQ1byyU`lD^F&Xm<pKK62+wdxsmqG|_L|6&~1bD!4kKAp&iGu%LLdCpHn>|TNV
+z%8R3a_|Tzmm#*3P@Q-HSUYM1eH!<b#!H-eZVZxGBjLfoXADrNsadU=e>c3jMs;&&F
+z8VCRQ^d#Seu9v{M5A2zz4}Ep>n<uhf6p_p+1vzZn`55CfJnY+hl#T1RV8b?1fPFTV
+zMq{}1RLvXzNtgju#D6Av7dYQX?EYncy0!eD=hJtHNE$$UTQ~nWa)NIxE}{6=0&;V+
+zNSKLeLKv&c>a1}yj<<B4tsNF%LuSqsh<Qk$W5YWI51(ur^O}gH4%BIH@8;;=D_OL-
+zgyP!@m^v+w?3^qDfgml-9f=^^DlE+!TezpC>$BEqf8?QeYhH<1JqFP0=f?}mZ~v(g
+zxoJ3q`BNsdeb*C=&+znTPg(oGZ>TsNm*p6-s^<dE)uQU^{eA!w88Fs9)AywRE_>-~
+zo<z<8YO5Qmue&%PLSgx;vV_h7j7ULpIBiX|4d5%!S)|C<QMHv#>5qiMvi`c3fXjnY
+z?nzI>n30qgyK(yTm1Cj+ioF{^3@0CWrSO)>rn{c}{@GoeufLXs+vZGT(^CeYib
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+zq9+APM+z`d>S`Lf|K3fsw_Ssnls$oQ<HruEuZBecMsac?omI_gbs~~-BLDz3)fc$`
+z-e1wt-p#TVrMzFUg##aK;af}Q#pw!orcPa&X4EpdpGluTlGk>l&LdL&c>{lV@vUe(
+zB{i9~>+T+MNs|1@lU%4xMhqz7rXF{kl4D#XI<rJf|J}hcee;cpJz~<*Mw6VBg4gGb
+zooq-lR=Ch_!L_ceK5qAmI2hv|_7ZWTAd$Xz_Z*|K;WE%ypkCQ=fIu+*%<#Kh7hMP!
+z=r839ZtBcdRV$IO`b<Y78%j(+fEkbhUvG%-EPj-E3uaPZcZr7cEpa(i)PL^WtF5k7
+zKc{_3+6ywu7%f6L4wOU{)g}fo*D?^Jr|{7Sp8?<)H^ESE%sf%~un+ua7rY{J06+}0
+zBy8Rps2H|^J|j+2+~rC4Fn?hY0JCP_Lh7i|L+U9?*al+&tkFFXsf0HCR$sKt{%-N*
+z3RR6+FmIp}5m(&$ue@g=bLJKRFlTN7-&`_x$UWlocgCh)3Al~C9R)~fZF~*18f4VZ
+z7oA&Ukw3@K+7SLg7mjhqTqW}hV+`Lhzc5b6=kLU7I5v9W<&&Sk(HI4gO@x470;o9m
+zY+rTyJynfaG+&^Lp59A<M5C)XcqYbh#lf@DF@T<{7x4#s21TzuZbDB++R+zw^S<u0
+z;g3DVz_f{JftkB1C;cKAHg^r29JT@cfi7H53U1dZYR<KAsi_ldm7Uv;a`aFYDEI>1
+zbX{p6Z2g0st1+xPRr~fQk-nI>L$^#A<JHs;1&T!MQ?sAF12H_pkRrHUeIPC;nNZkA
+zAlOSN><5PaL=!6;PSwBuOsthb;@vtaN3H8!fg-Rw7QQgI>Pk?49a|gzM^OzTtUX=(
+z<{t+S#TiXq)6|eE-gzSI0rP_+YmYB4y}5I>Ds?yLyvmA{4domX6nRy|Tb{c@gw3Go
+zSAy>Q%C;02*syDzNaO$;UaV@p5uVP-xx6jWU($8IpY(BDzOQ7j6qV%)(*@c8YURW;
+zzpcp2S4#n^S%{1S+QBwkHC1k7_I_Hk`;+V09uYtc%=Ww#?-e@}G}|!}PU;OD{-Qsp
+bU%LDkMDBWX&Ru`<00000NkvXXu0mjfJA@b~
+
+literal 0
+HcmV?d00001
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add_PostImage
new file mode 100644
index 0000000..799df85
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/literal_add_PostImage
Binary files differ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest.patch
new file mode 100644
index 0000000..ab4d426
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest.patch
@@ -0,0 +1,9 @@
+diff --git a/smudgetest b/smudgetest
+index a24d41e..762c4d0 100644
+--- a/smudgetest
++++ b/smudgetest
+@@ -1,3 +1,3 @@
+ PERLE
+-HEBLE
++sprich
+ speak
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PostImage
new file mode 100644
index 0000000..ad63089
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PostImage
@@ -0,0 +1,3 @@
+PARLA
+sprich
+speak
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PreImage
new file mode 100644
index 0000000..9bbd8c7
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/smudgetest_PreImage
@@ -0,0 +1,3 @@
+PARLA
+HABLA
+speak
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut.patch b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut.patch
new file mode 100644
index 0000000..7380dbe
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut.patch
@@ -0,0 +1,7 @@
+diff --git a/umlaut b/umlaut
+index 003a054..557f72f 100644
+--- a/umlaut
++++ b/umlaut
+@@ -1 +1 @@
+-ÄÖÜ
++ÄÖÜ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PostImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PostImage
new file mode 100644
index 0000000..557f72f
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PostImage
@@ -0,0 +1 @@
+ÄÖÜ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PreImage b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PreImage
new file mode 100644
index 0000000..003a054
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/diff/umlaut_PreImage
@@ -0,0 +1 @@
+ÄÖÜ
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.forward b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.forward
new file mode 100644
index 0000000..878b167
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.forward
@@ -0,0 +1 @@
+ScmZp0Xmwa1z*+$U3j_csN(Dmz
diff --git a/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.reverse b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.reverse
new file mode 100644
index 0000000..7ff7a08
--- /dev/null
+++ b/org.eclipse.jgit.test/tst-rsrc/org/eclipse/jgit/util/io/delta1.reverse
@@ -0,0 +1 @@
+TcmZp5XmD5{u!xa=5hEi28?FP4
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/ApplyCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/ApplyCommandTest.java
index 055eba7..867310b 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/ApplyCommandTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/ApplyCommandTest.java
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2011, 2020 IBM Corporation and others
+ * Copyright (C) 2011, 2021 IBM Corporation and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
@@ -9,6 +9,7 @@
*/
package org.eclipse.jgit.api;
+import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@@ -18,11 +19,20 @@
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
import org.eclipse.jgit.api.errors.PatchApplyException;
import org.eclipse.jgit.api.errors.PatchFormatException;
+import org.eclipse.jgit.attributes.FilterCommand;
+import org.eclipse.jgit.attributes.FilterCommandFactory;
+import org.eclipse.jgit.attributes.FilterCommandRegistry;
import org.eclipse.jgit.diff.RawText;
import org.eclipse.jgit.junit.RepositoryTestCase;
+import org.eclipse.jgit.lib.Config;
+import org.eclipse.jgit.lib.ConfigConstants;
+import org.eclipse.jgit.util.IO;
import org.junit.Test;
public class ApplyCommandTest extends RepositoryTestCase {
@@ -58,6 +68,260 @@
}
@Test
+ public void testCrLf() throws Exception {
+ try {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, true);
+ ApplyResult result = init("crlf", true, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "crlf"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "crlf"),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ @Test
+ public void testCrLfOff() throws Exception {
+ try {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, false);
+ ApplyResult result = init("crlf", true, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "crlf"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "crlf"),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ @Test
+ public void testCrLfEmptyCommitted() throws Exception {
+ try {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, true);
+ ApplyResult result = init("crlf3", true, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "crlf3"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "crlf3"),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ @Test
+ public void testCrLfNewFile() throws Exception {
+ try {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, true);
+ ApplyResult result = init("crlf4", false, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "crlf4"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "crlf4"),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ @Test
+ public void testPatchWithCrLf() throws Exception {
+ try {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, false);
+ ApplyResult result = init("crlf2", true, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "crlf2"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "crlf2"),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ @Test
+ public void testPatchWithCrLf2() throws Exception {
+ String name = "crlf2";
+ try (Git git = new Git(db)) {
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, false);
+ a = new RawText(readFile(name + "_PreImage"));
+ write(new File(db.getWorkTree(), name),
+ a.getString(0, a.size(), false));
+
+ git.add().addFilepattern(name).call();
+ git.commit().setMessage("PreImage").call();
+
+ b = new RawText(readFile(name + "_PostImage"));
+
+ db.getConfig().setBoolean(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF, true);
+ ApplyResult result = git.apply()
+ .setPatch(getTestResource(name + ".patch")).call();
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), name),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), name),
+ b.getString(0, b.size(), false));
+ } finally {
+ db.getConfig().unset(ConfigConstants.CONFIG_CORE_SECTION, null,
+ ConfigConstants.CONFIG_KEY_AUTOCRLF);
+ }
+ }
+
+ // Clean/smudge filter for testFiltering. The smudgetest test resources were
+ // created with C git using a clean filter sed -e "s/A/E/g" and the smudge
+ // filter sed -e "s/E/A/g". To keep the test independent of the presence of
+ // sed, implement this with a built-in filter.
+ private static class ReplaceFilter extends FilterCommand {
+
+ private final char toReplace;
+
+ private final char replacement;
+
+ ReplaceFilter(InputStream in, OutputStream out, char toReplace,
+ char replacement) {
+ super(in, out);
+ this.toReplace = toReplace;
+ this.replacement = replacement;
+ }
+
+ @Override
+ public int run() throws IOException {
+ int b = in.read();
+ if (b < 0) {
+ in.close();
+ out.close();
+ return -1;
+ }
+ if ((b & 0xFF) == toReplace) {
+ b = replacement;
+ }
+ out.write(b);
+ return 1;
+ }
+ }
+
+ @Test
+ public void testFiltering() throws Exception {
+ // Set up filter
+ FilterCommandFactory clean = (repo, in, out) -> {
+ return new ReplaceFilter(in, out, 'A', 'E');
+ };
+ FilterCommandFactory smudge = (repo, in, out) -> {
+ return new ReplaceFilter(in, out, 'E', 'A');
+ };
+ FilterCommandRegistry.register("jgit://builtin/a2e/clean", clean);
+ FilterCommandRegistry.register("jgit://builtin/a2e/smudge", smudge);
+ try (Git git = new Git(db)) {
+ Config config = db.getConfig();
+ config.setString(ConfigConstants.CONFIG_FILTER_SECTION, "a2e",
+ "clean", "jgit://builtin/a2e/clean");
+ config.setString(ConfigConstants.CONFIG_FILTER_SECTION, "a2e",
+ "smudge", "jgit://builtin/a2e/smudge");
+ write(new File(db.getWorkTree(), ".gitattributes"),
+ "smudgetest filter=a2e");
+ git.add().addFilepattern(".gitattributes").call();
+ git.commit().setMessage("Attributes").call();
+ ApplyResult result = init("smudgetest", true, true);
+ assertEquals(1, result.getUpdatedFiles().size());
+ assertEquals(new File(db.getWorkTree(), "smudgetest"),
+ result.getUpdatedFiles().get(0));
+ checkFile(new File(db.getWorkTree(), "smudgetest"),
+ b.getString(0, b.size(), false));
+
+ } finally {
+ // Tear down filter
+ FilterCommandRegistry.unregister("jgit://builtin/a2e/clean");
+ FilterCommandRegistry.unregister("jgit://builtin/a2e/smudge");
+ }
+ }
+
+ private void checkBinary(String name, boolean hasPreImage)
+ throws Exception {
+ checkBinary(name, hasPreImage, 1);
+ }
+
+ private void checkBinary(String name, boolean hasPreImage,
+ int numberOfFiles) throws Exception {
+ try (Git git = new Git(db)) {
+ byte[] post = IO
+ .readWholeStream(getTestResource(name + "_PostImage"), 0)
+ .array();
+ File f = new File(db.getWorkTree(), name);
+ if (hasPreImage) {
+ byte[] pre = IO
+ .readWholeStream(getTestResource(name + "_PreImage"), 0)
+ .array();
+ Files.write(f.toPath(), pre);
+ git.add().addFilepattern(name).call();
+ git.commit().setMessage("PreImage").call();
+ }
+ ApplyResult result = git.apply()
+ .setPatch(getTestResource(name + ".patch")).call();
+ assertEquals(numberOfFiles, result.getUpdatedFiles().size());
+ assertEquals(f, result.getUpdatedFiles().get(0));
+ assertArrayEquals(post, Files.readAllBytes(f.toPath()));
+ }
+ }
+
+ @Test
+ public void testBinaryDelta() throws Exception {
+ checkBinary("delta", true);
+ }
+
+ @Test
+ public void testBinaryLiteral() throws Exception {
+ checkBinary("literal", true);
+ }
+
+ @Test
+ public void testBinaryLiteralAdd() throws Exception {
+ checkBinary("literal_add", false);
+ }
+
+ @Test
+ public void testEncodingChange() throws Exception {
+ // This is a text patch that changes a file containing ÄÖÜ in UTF-8 to
+ // the same characters in ISO-8859-1. The patch file itself uses mixed
+ // encoding. Since checkFile() works with strings use the binary check.
+ checkBinary("umlaut", true);
+ }
+
+ @Test
+ public void testEmptyLine() throws Exception {
+ // C git accepts completely empty lines as empty context lines.
+ // According to comments in the C git sources (apply.c), newer GNU diff
+ // may produce such diffs.
+ checkBinary("emptyLine", true);
+ }
+
+ @Test
+ public void testMultiFileNoNewline() throws Exception {
+ // This test needs two files. One is in the test resources.
+ try (Git git = new Git(db)) {
+ Files.write(db.getWorkTree().toPath().resolve("yello"),
+ "yello".getBytes(StandardCharsets.US_ASCII));
+ git.add().addFilepattern("yello").call();
+ git.commit().setMessage("yello").call();
+ }
+ checkBinary("hello", true, 2);
+ }
+
+ @Test
public void testAddA1() throws Exception {
ApplyResult result = init("A1", false, true);
assertEquals(1, result.getUpdatedFiles().size());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/Base85Test.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/Base85Test.java
new file mode 100644
index 0000000..a49878c
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/Base85Test.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+import java.nio.charset.StandardCharsets;
+
+import org.junit.Test;
+
+/**
+ * Tests for {@link Base85}.
+ */
+public class Base85Test {
+
+ private static final String VALID_CHARS = "0123456789"
+ + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+ + "!#$%&()*+-;<=>?@^_`{|}~";
+
+ @Test
+ public void testChars() {
+ for (int i = 0; i < 256; i++) {
+ byte[] testData = { '1', '2', '3', '4', (byte) i };
+ if (VALID_CHARS.indexOf(i) >= 0) {
+ byte[] decoded = Base85.decode(testData, 4);
+ assertNotNull(decoded);
+ } else {
+ assertThrows(IllegalArgumentException.class,
+ () -> Base85.decode(testData, 4));
+ }
+ }
+ }
+
+ private void roundtrip(byte[] data, int expectedLength) {
+ byte[] encoded = Base85.encode(data);
+ assertEquals(expectedLength, encoded.length);
+ assertArrayEquals(data, Base85.decode(encoded, data.length));
+ }
+
+ private void roundtrip(String data, int expectedLength) {
+ roundtrip(data.getBytes(StandardCharsets.US_ASCII), expectedLength);
+ }
+
+ @Test
+ public void testPadding() {
+ roundtrip("", 0);
+ roundtrip("a", 5);
+ roundtrip("ab", 5);
+ roundtrip("abc", 5);
+ roundtrip("abcd", 5);
+ roundtrip("abcde", 10);
+ roundtrip("abcdef", 10);
+ roundtrip("abcdefg", 10);
+ roundtrip("abcdefgh", 10);
+ roundtrip("abcdefghi", 15);
+ }
+
+ @Test
+ public void testBinary() {
+ roundtrip(new byte[] { 1 }, 5);
+ roundtrip(new byte[] { 1, 2 }, 5);
+ roundtrip(new byte[] { 1, 2, 3 }, 5);
+ roundtrip(new byte[] { 1, 2, 3, 4 }, 5);
+ roundtrip(new byte[] { 1, 2, 3, 4, 5 }, 10);
+ roundtrip(new byte[] { 1, 2, 3, 4, 5, 0, 0, 0 }, 10);
+ roundtrip(new byte[] { 1, 2, 3, 4, 0, 0, 0, 5 }, 10);
+ }
+
+ @Test
+ public void testOverflow() {
+ IllegalArgumentException e = assertThrows(
+ IllegalArgumentException.class,
+ () -> Base85.decode(new byte[] { '~', '~', '~', '~', '~' }, 4));
+ assertTrue(e.getMessage().contains("overflow"));
+ }
+}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryDeltaInputStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryDeltaInputStreamTest.java
new file mode 100644
index 0000000..d9297fc
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryDeltaInputStreamTest.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util.io;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.zip.InflaterInputStream;
+
+import org.junit.Test;
+
+/**
+ * Crude tests for the {@link BinaryDeltaInputStream} using delta diffs
+ * generated by C git.
+ */
+public class BinaryDeltaInputStreamTest {
+
+ private InputStream getBinaryHunk(String name) {
+ return this.getClass().getResourceAsStream(name);
+ }
+
+ @Test
+ public void testBinaryDelta() throws Exception {
+ // Prepare our test data
+ byte[] data = new byte[8192];
+ for (int i = 0; i < data.length; i++) {
+ data[i] = (byte) (255 - (i % 256));
+ }
+ // Same, but with five 'x' inserted in the middle.
+ int middle = data.length / 2;
+ byte[] newData = new byte[data.length + 5];
+ System.arraycopy(data, 0, newData, 0, middle);
+ for (int i = 0; i < 5; i++) {
+ newData[middle + i] = 'x';
+ }
+ System.arraycopy(data, middle, newData, middle + 5, middle);
+ // delta1.forward has the instructions
+ // @formatter:off
+ // COPY 0 4096
+ // INSERT 5 xxxxx
+ // COPY 0 4096
+ // @formatter:on
+ // Note that the way we built newData could be expressed as
+ // @formatter:off
+ // COPY 0 4096
+ // INSERT 5 xxxxx
+ // COPY 4096 4096
+ // @formatter:on
+ try (ByteArrayOutputStream out = new ByteArrayOutputStream();
+ BinaryDeltaInputStream input = new BinaryDeltaInputStream(data,
+ new InflaterInputStream(new BinaryHunkInputStream(
+ getBinaryHunk("delta1.forward"))))) {
+ byte[] buf = new byte[1024];
+ int n;
+ while ((n = input.read(buf)) >= 0) {
+ out.write(buf, 0, n);
+ }
+ assertArrayEquals(newData, out.toByteArray());
+ assertTrue(input.isFullyConsumed());
+ }
+ // delta1.reverse has the instructions
+ // @formatter:off
+ // COPY 0 4096
+ // COPY 256 3840
+ // COPY 256 256
+ // @formatter:on
+ // Note that there are alternatives, for instance
+ // @formatter:off
+ // COPY 0 4096
+ // COPY 4101 4096
+ // @formatter:on
+ // or
+ // @formatter:off
+ // COPY 0 4096
+ // COPY 0 4096
+ // @formatter:on
+ try (ByteArrayOutputStream out = new ByteArrayOutputStream();
+ BinaryDeltaInputStream input = new BinaryDeltaInputStream(
+ newData,
+ new InflaterInputStream(new BinaryHunkInputStream(
+ getBinaryHunk("delta1.reverse"))))) {
+ long expectedSize = input.getExpectedResultSize();
+ assertEquals(data.length, expectedSize);
+ byte[] buf = new byte[1024];
+ int n;
+ while ((n = input.read(buf)) >= 0) {
+ out.write(buf, 0, n);
+ }
+ assertArrayEquals(data, out.toByteArray());
+ assertTrue(input.isFullyConsumed());
+ }
+ }
+}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryHunkStreamTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryHunkStreamTest.java
new file mode 100644
index 0000000..b198c32
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/io/BinaryHunkStreamTest.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util.io;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import org.junit.Test;
+
+/**
+ * Tests for {@link BinaryHunkInputStream} and {@link BinaryHunkOutputStream}.
+ */
+public class BinaryHunkStreamTest {
+
+ @Test
+ public void testRoundtripWholeBuffer() throws IOException {
+ for (int length = 1; length < 520 + 52; length++) {
+ byte[] data = new byte[length];
+ for (int i = 0; i < data.length; i++) {
+ data[i] = (byte) (255 - (i % 256));
+ }
+ try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ BinaryHunkOutputStream out = new BinaryHunkOutputStream(
+ bos)) {
+ out.write(data);
+ out.flush();
+ byte[] encoded = bos.toByteArray();
+ assertFalse(Arrays.equals(data, encoded));
+ try (BinaryHunkInputStream in = new BinaryHunkInputStream(
+ new ByteArrayInputStream(encoded))) {
+ byte[] decoded = new byte[data.length];
+ int newLength = in.read(decoded);
+ assertEquals(newLength, decoded.length);
+ assertEquals(-1, in.read());
+ assertArrayEquals(data, decoded);
+ }
+ }
+ }
+ }
+
+ @Test
+ public void testRoundtripChunks() throws IOException {
+ for (int length = 1; length < 520 + 52; length++) {
+ byte[] data = new byte[length];
+ for (int i = 0; i < data.length; i++) {
+ data[i] = (byte) (255 - (i % 256));
+ }
+ try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ BinaryHunkOutputStream out = new BinaryHunkOutputStream(
+ bos)) {
+ out.write(data, 0, data.length / 2);
+ out.write(data, data.length / 2, data.length - data.length / 2);
+ out.flush();
+ byte[] encoded = bos.toByteArray();
+ assertFalse(Arrays.equals(data, encoded));
+ try (BinaryHunkInputStream in = new BinaryHunkInputStream(
+ new ByteArrayInputStream(encoded))) {
+ byte[] decoded = new byte[data.length];
+ int p = 0;
+ int n;
+ while ((n = in.read(decoded, p,
+ Math.min(decoded.length - p, 57))) >= 0) {
+ p += n;
+ if (p == decoded.length) {
+ break;
+ }
+ }
+ assertEquals(p, decoded.length);
+ assertEquals(-1, in.read());
+ assertArrayEquals(data, decoded);
+ }
+ }
+ }
+ }
+
+ @Test
+ public void testRoundtripBytes() throws IOException {
+ for (int length = 1; length < 520 + 52; length++) {
+ byte[] data = new byte[length];
+ for (int i = 0; i < data.length; i++) {
+ data[i] = (byte) (255 - (i % 256));
+ }
+ try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ BinaryHunkOutputStream out = new BinaryHunkOutputStream(
+ bos)) {
+ for (int i = 0; i < data.length; i++) {
+ out.write(data[i]);
+ }
+ out.flush();
+ byte[] encoded = bos.toByteArray();
+ assertFalse(Arrays.equals(data, encoded));
+ try (BinaryHunkInputStream in = new BinaryHunkInputStream(
+ new ByteArrayInputStream(encoded))) {
+ byte[] decoded = new byte[data.length];
+ for (int i = 0; i < decoded.length; i++) {
+ int val = in.read();
+ assertTrue(0 <= val && val <= 255);
+ decoded[i] = (byte) val;
+ }
+ assertEquals(-1, in.read());
+ assertArrayEquals(data, decoded);
+ }
+ }
+ }
+ }
+
+ @Test
+ public void testRoundtripWithClose() throws IOException {
+ for (int length = 1; length < 520 + 52; length++) {
+ byte[] data = new byte[length];
+ for (int i = 0; i < data.length; i++) {
+ data[i] = (byte) (255 - (i % 256));
+ }
+ try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
+ try (BinaryHunkOutputStream out = new BinaryHunkOutputStream(
+ bos)) {
+ out.write(data);
+ }
+ byte[] encoded = bos.toByteArray();
+ assertFalse(Arrays.equals(data, encoded));
+ try (BinaryHunkInputStream in = new BinaryHunkInputStream(
+ new ByteArrayInputStream(encoded))) {
+ byte[] decoded = new byte[data.length];
+ int newLength = in.read(decoded);
+ assertEquals(newLength, decoded.length);
+ assertEquals(-1, in.read());
+ assertArrayEquals(data, decoded);
+ }
+ }
+ }
+ }
+}
diff --git a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
index 2fa8713..962324e 100644
--- a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
+++ b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
@@ -13,6 +13,9 @@
aNewObjectIdIsRequired=A NewObjectId is required.
anExceptionOccurredWhileTryingToAddTheIdOfHEAD=An exception occurred while trying to add the Id of HEAD
anSSHSessionHasBeenAlreadyCreated=An SSH session has been already created
+applyBinaryBaseOidWrong=Cannot apply binary patch; OID for file {0} does not match
+applyBinaryOidTooShort=Binary patch for file {0} does not have full IDs
+applyBinaryResultOidWrong=Result of binary patch for file {0} has wrong OID.
applyingCommit=Applying {0}
archiveFormatAlreadyAbsent=Archive format already absent: {0}
archiveFormatAlreadyRegistered=Archive format already registered with different implementation: {0}
@@ -37,7 +40,19 @@
badSectionEntry=Bad section entry: {0}
badShallowLine=Bad shallow line: {0}
bareRepositoryNoWorkdirAndIndex=Bare Repository has neither a working tree, nor an index
+base85invalidChar=Invalid base-85 character: 0x{0}
+base85length=Base-85 encoded data must have a length that is a multiple of 5
+base85overflow=Base-85 value overflow, does not fit into 32 bits: 0x{0}
+base85tooLong=Extra base-85 encoded data for output size of {0} bytes
+base85tooShort=Base-85 data decoded into less than {0} bytes
baseLengthIncorrect=base length incorrect
+binaryDeltaBaseLengthMismatch=Binary delta base length does not match, expected {0}, got {1}
+binaryDeltaInvalidOffset=Binary delta offset + length too large: {0} + {1}
+binaryDeltaInvalidResultLength=Binary delta expected result length is negative
+binaryHunkDecodeError=Binary hunk, line {0}: invalid input
+binaryHunkInvalidLength=Binary hunk, line {0}: input corrupt; expected length byte, got 0x{1}
+binaryHunkLineTooShort=Binary hunk, line {0}: input ended prematurely
+binaryHunkMissingNewline=Binary hunk, line {0}: input line not terminated by newline
bitmapMissingObject=Bitmap at {0} is missing {1}.
bitmapsMustBePrepared=Bitmaps must be prepared before they may be written.
blameNotCommittedYet=Not Committed Yet
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java b/org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java
index e228e82..583767a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2011, 2020 IBM Corporation and others
+ * Copyright (C) 2011, 2021 IBM Corporation and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
@@ -9,29 +9,68 @@
*/
package org.eclipse.jgit.api;
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
-import java.io.Writer;
+import java.io.OutputStream;
+import java.nio.ByteBuffer;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
+import java.util.zip.InflaterInputStream;
+import org.eclipse.jgit.api.errors.FilterFailedException;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.api.errors.PatchApplyException;
import org.eclipse.jgit.api.errors.PatchFormatException;
+import org.eclipse.jgit.attributes.FilterCommand;
+import org.eclipse.jgit.attributes.FilterCommandRegistry;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;
import org.eclipse.jgit.diff.RawText;
+import org.eclipse.jgit.dircache.DirCache;
+import org.eclipse.jgit.dircache.DirCacheCheckout;
+import org.eclipse.jgit.dircache.DirCacheCheckout.CheckoutMetadata;
+import org.eclipse.jgit.dircache.DirCacheIterator;
+import org.eclipse.jgit.errors.LargeObjectException;
+import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.JGitText;
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.CoreConfig.EolStreamType;
import org.eclipse.jgit.lib.FileMode;
+import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.ObjectLoader;
+import org.eclipse.jgit.lib.ObjectStream;
import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.patch.BinaryHunk;
import org.eclipse.jgit.patch.FileHeader;
+import org.eclipse.jgit.patch.FileHeader.PatchType;
import org.eclipse.jgit.patch.HunkHeader;
import org.eclipse.jgit.patch.Patch;
+import org.eclipse.jgit.treewalk.FileTreeIterator;
+import org.eclipse.jgit.treewalk.TreeWalk;
+import org.eclipse.jgit.treewalk.TreeWalk.OperationType;
+import org.eclipse.jgit.treewalk.filter.AndTreeFilter;
+import org.eclipse.jgit.treewalk.filter.NotIgnoredFilter;
+import org.eclipse.jgit.treewalk.filter.PathFilterGroup;
+import org.eclipse.jgit.util.FS;
+import org.eclipse.jgit.util.FS.ExecutionResult;
import org.eclipse.jgit.util.FileUtils;
+import org.eclipse.jgit.util.IO;
+import org.eclipse.jgit.util.RawParseUtils;
+import org.eclipse.jgit.util.StringUtils;
+import org.eclipse.jgit.util.TemporaryBuffer;
+import org.eclipse.jgit.util.TemporaryBuffer.LocalFile;
+import org.eclipse.jgit.util.io.BinaryDeltaInputStream;
+import org.eclipse.jgit.util.io.BinaryHunkInputStream;
+import org.eclipse.jgit.util.io.EolStreamTypeUtil;
+import org.eclipse.jgit.util.sha1.SHA1;
/**
* Apply a patch to files and/or to the index.
@@ -45,7 +84,7 @@
private InputStream in;
/**
- * Constructs the command if the patch is to be applied to the index.
+ * Constructs the command.
*
* @param repo
*/
@@ -79,6 +118,7 @@
public ApplyResult call() throws GitAPIException, PatchFormatException,
PatchApplyException {
checkCallable();
+ setCallable(false);
ApplyResult r = new ApplyResult();
try {
final Patch p = new Patch();
@@ -87,19 +127,22 @@
} finally {
in.close();
}
- if (!p.getErrors().isEmpty())
+ if (!p.getErrors().isEmpty()) {
throw new PatchFormatException(p.getErrors());
+ }
+ Repository repository = getRepository();
+ DirCache cache = repository.readDirCache();
for (FileHeader fh : p.getFiles()) {
ChangeType type = fh.getChangeType();
File f = null;
switch (type) {
case ADD:
f = getFile(fh.getNewPath(), true);
- apply(f, fh);
+ apply(repository, fh.getNewPath(), cache, f, fh);
break;
case MODIFY:
f = getFile(fh.getOldPath(), false);
- apply(f, fh);
+ apply(repository, fh.getOldPath(), cache, f, fh);
break;
case DELETE:
f = getFile(fh.getOldPath(), false);
@@ -118,14 +161,14 @@
throw new PatchApplyException(MessageFormat.format(
JGitText.get().renameFileFailed, f, dest), e);
}
- apply(dest, fh);
+ apply(repository, fh.getOldPath(), cache, dest, fh);
break;
case COPY:
f = getFile(fh.getOldPath(), false);
File target = getFile(fh.getNewPath(), false);
FileUtils.mkdirs(target.getParentFile(), true);
Files.copy(f.toPath(), target.toPath());
- apply(target, fh);
+ apply(repository, fh.getOldPath(), cache, target, fh);
}
r.addUpdatedFile(f);
}
@@ -133,14 +176,13 @@
throw new PatchApplyException(MessageFormat.format(
JGitText.get().patchApplyException, e.getMessage()), e);
}
- setCallable(false);
return r;
}
private File getFile(String path, boolean create)
throws PatchApplyException {
File f = new File(getRepository().getWorkTree(), path);
- if (create)
+ if (create) {
try {
File parent = f.getParentFile();
FileUtils.mkdirs(parent, true);
@@ -149,22 +191,366 @@
throw new PatchApplyException(MessageFormat.format(
JGitText.get().createNewFileFailed, f), e);
}
+ }
return f;
}
+ private void apply(Repository repository, String path, DirCache cache,
+ File f, FileHeader fh) throws IOException, PatchApplyException {
+ if (PatchType.BINARY.equals(fh.getPatchType())) {
+ return;
+ }
+ boolean convertCrLf = needsCrLfConversion(f, fh);
+ // Use a TreeWalk with a DirCacheIterator to pick up the correct
+ // clean/smudge filters. CR-LF handling is completely determined by
+ // whether the file or the patch have CR-LF line endings.
+ try (TreeWalk walk = new TreeWalk(repository)) {
+ walk.setOperationType(OperationType.CHECKIN_OP);
+ FileTreeIterator files = new FileTreeIterator(repository);
+ int fileIdx = walk.addTree(files);
+ int cacheIdx = walk.addTree(new DirCacheIterator(cache));
+ files.setDirCacheIterator(walk, cacheIdx);
+ walk.setFilter(AndTreeFilter.create(
+ PathFilterGroup.createFromStrings(path),
+ new NotIgnoredFilter(fileIdx)));
+ walk.setRecursive(true);
+ if (walk.next()) {
+ // If the file on disk has no newline characters, convertCrLf
+ // will be false. In that case we want to honor the normal git
+ // settings.
+ EolStreamType streamType = convertCrLf ? EolStreamType.TEXT_CRLF
+ : walk.getEolStreamType(OperationType.CHECKOUT_OP);
+ String command = walk.getFilterCommand(
+ Constants.ATTR_FILTER_TYPE_SMUDGE);
+ CheckoutMetadata checkOut = new CheckoutMetadata(streamType, command);
+ FileTreeIterator file = walk.getTree(fileIdx,
+ FileTreeIterator.class);
+ if (file != null) {
+ if (PatchType.GIT_BINARY.equals(fh.getPatchType())) {
+ applyBinary(repository, path, f, fh,
+ file::openEntryStream, file.getEntryObjectId(),
+ checkOut);
+ } else {
+ command = walk.getFilterCommand(
+ Constants.ATTR_FILTER_TYPE_CLEAN);
+ RawText raw;
+ // Can't use file.openEntryStream() as it would do CR-LF
+ // conversion as usual, not as wanted by us.
+ try (InputStream input = filterClean(repository, path,
+ new FileInputStream(f), convertCrLf, command)) {
+ raw = new RawText(
+ IO.readWholeStream(input, 0).array());
+ }
+ applyText(repository, path, raw, f, fh, checkOut);
+ }
+ return;
+ }
+ }
+ }
+ // File ignored?
+ RawText raw;
+ CheckoutMetadata checkOut;
+ if (PatchType.GIT_BINARY.equals(fh.getPatchType())) {
+ checkOut = new CheckoutMetadata(EolStreamType.DIRECT, null);
+ applyBinary(repository, path, f, fh, () -> new FileInputStream(f),
+ null, checkOut);
+ } else {
+ if (convertCrLf) {
+ try (InputStream input = EolStreamTypeUtil.wrapInputStream(
+ new FileInputStream(f), EolStreamType.TEXT_LF)) {
+ raw = new RawText(IO.readWholeStream(input, 0).array());
+ }
+ checkOut = new CheckoutMetadata(EolStreamType.TEXT_CRLF, null);
+ } else {
+ raw = new RawText(f);
+ checkOut = new CheckoutMetadata(EolStreamType.DIRECT, null);
+ }
+ applyText(repository, path, raw, f, fh, checkOut);
+ }
+ }
+
+ private boolean needsCrLfConversion(File f, FileHeader fileHeader)
+ throws IOException {
+ if (PatchType.GIT_BINARY.equals(fileHeader.getPatchType())) {
+ return false;
+ }
+ if (!hasCrLf(fileHeader)) {
+ try (InputStream input = new FileInputStream(f)) {
+ return RawText.isCrLfText(input);
+ }
+ }
+ return false;
+ }
+
+ private static boolean hasCrLf(FileHeader fileHeader) {
+ if (PatchType.GIT_BINARY.equals(fileHeader.getPatchType())) {
+ return false;
+ }
+ for (HunkHeader header : fileHeader.getHunks()) {
+ byte[] buf = header.getBuffer();
+ int hunkEnd = header.getEndOffset();
+ int lineStart = header.getStartOffset();
+ while (lineStart < hunkEnd) {
+ int nextLineStart = RawParseUtils.nextLF(buf, lineStart);
+ if (nextLineStart > hunkEnd) {
+ nextLineStart = hunkEnd;
+ }
+ if (nextLineStart <= lineStart) {
+ break;
+ }
+ if (nextLineStart - lineStart > 1) {
+ char first = (char) (buf[lineStart] & 0xFF);
+ if (first == ' ' || first == '-') {
+ // It's an old line. Does it end in CR-LF?
+ if (buf[nextLineStart - 2] == '\r') {
+ return true;
+ }
+ }
+ }
+ lineStart = nextLineStart;
+ }
+ }
+ return false;
+ }
+
+ private InputStream filterClean(Repository repository, String path,
+ InputStream fromFile, boolean convertCrLf, String filterCommand)
+ throws IOException {
+ InputStream input = fromFile;
+ if (convertCrLf) {
+ input = EolStreamTypeUtil.wrapInputStream(input,
+ EolStreamType.TEXT_LF);
+ }
+ if (StringUtils.isEmptyOrNull(filterCommand)) {
+ return input;
+ }
+ if (FilterCommandRegistry.isRegistered(filterCommand)) {
+ LocalFile buffer = new TemporaryBuffer.LocalFile(null);
+ FilterCommand command = FilterCommandRegistry.createFilterCommand(
+ filterCommand, repository, input, buffer);
+ while (command.run() != -1) {
+ // loop as long as command.run() tells there is work to do
+ }
+ return buffer.openInputStreamWithAutoDestroy();
+ }
+ FS fs = repository.getFS();
+ ProcessBuilder filterProcessBuilder = fs.runInShell(filterCommand,
+ new String[0]);
+ filterProcessBuilder.directory(repository.getWorkTree());
+ filterProcessBuilder.environment().put(Constants.GIT_DIR_KEY,
+ repository.getDirectory().getAbsolutePath());
+ ExecutionResult result;
+ try {
+ result = fs.execute(filterProcessBuilder, in);
+ } catch (IOException | InterruptedException e) {
+ throw new IOException(
+ new FilterFailedException(e, filterCommand, path));
+ }
+ int rc = result.getRc();
+ if (rc != 0) {
+ throw new IOException(new FilterFailedException(rc, filterCommand,
+ path, result.getStdout().toByteArray(4096), RawParseUtils
+ .decode(result.getStderr().toByteArray(4096))));
+ }
+ return result.getStdout().openInputStreamWithAutoDestroy();
+ }
+
/**
- * @param f
- * @param fh
- * @throws IOException
- * @throws PatchApplyException
+ * Something that can supply an {@link InputStream}.
*/
- private void apply(File f, FileHeader fh)
+ private interface StreamSupplier {
+ InputStream load() throws IOException;
+ }
+
+ /**
+ * We write the patch result to a {@link TemporaryBuffer} and then use
+ * {@link DirCacheCheckout}.getContent() to run the result through the CR-LF
+ * and smudge filters. DirCacheCheckout needs an ObjectLoader, not a
+ * TemporaryBuffer, so this class bridges between the two, making any Stream
+ * provided by a {@link StreamSupplier} look like an ordinary git blob to
+ * DirCacheCheckout.
+ */
+ private static class StreamLoader extends ObjectLoader {
+
+ private StreamSupplier data;
+
+ private long size;
+
+ StreamLoader(StreamSupplier data, long length) {
+ this.data = data;
+ this.size = length;
+ }
+
+ @Override
+ public int getType() {
+ return Constants.OBJ_BLOB;
+ }
+
+ @Override
+ public long getSize() {
+ return size;
+ }
+
+ @Override
+ public boolean isLarge() {
+ return true;
+ }
+
+ @Override
+ public byte[] getCachedBytes() throws LargeObjectException {
+ throw new LargeObjectException();
+ }
+
+ @Override
+ public ObjectStream openStream()
+ throws MissingObjectException, IOException {
+ return new ObjectStream.Filter(getType(), getSize(),
+ new BufferedInputStream(data.load()));
+ }
+ }
+
+ private void initHash(SHA1 hash, long size) {
+ hash.update(Constants.encodedTypeString(Constants.OBJ_BLOB));
+ hash.update((byte) ' ');
+ hash.update(Constants.encodeASCII(size));
+ hash.update((byte) 0);
+ }
+
+ private ObjectId hash(File f) throws IOException {
+ SHA1 hash = SHA1.newInstance();
+ initHash(hash, f.length());
+ try (InputStream input = new FileInputStream(f)) {
+ byte[] buf = new byte[8192];
+ int n;
+ while ((n = input.read(buf)) >= 0) {
+ hash.update(buf, 0, n);
+ }
+ }
+ return hash.toObjectId();
+ }
+
+ private void checkOid(ObjectId baseId, ObjectId id, ChangeType type, File f,
+ String path)
+ throws PatchApplyException, IOException {
+ boolean hashOk = false;
+ if (id != null) {
+ hashOk = baseId.equals(id);
+ if (!hashOk && ChangeType.ADD.equals(type)
+ && ObjectId.zeroId().equals(baseId)) {
+ // We create the file first. The OID of an empty file is not the
+ // zero id!
+ hashOk = Constants.EMPTY_BLOB_ID.equals(id);
+ }
+ } else {
+ if (ObjectId.zeroId().equals(baseId)) {
+ // File empty is OK.
+ hashOk = !f.exists() || f.length() == 0;
+ } else {
+ hashOk = baseId.equals(hash(f));
+ }
+ }
+ if (!hashOk) {
+ throw new PatchApplyException(MessageFormat
+ .format(JGitText.get().applyBinaryBaseOidWrong, path));
+ }
+ }
+
+ private void applyBinary(Repository repository, String path, File f,
+ FileHeader fh, StreamSupplier loader, ObjectId id,
+ CheckoutMetadata checkOut)
+ throws PatchApplyException, IOException {
+ if (!fh.getOldId().isComplete() || !fh.getNewId().isComplete()) {
+ throw new PatchApplyException(MessageFormat
+ .format(JGitText.get().applyBinaryOidTooShort, path));
+ }
+ BinaryHunk hunk = fh.getForwardBinaryHunk();
+ // A BinaryHunk has the start at the "literal" or "delta" token. Data
+ // starts on the next line.
+ int start = RawParseUtils.nextLF(hunk.getBuffer(),
+ hunk.getStartOffset());
+ int length = hunk.getEndOffset() - start;
+ SHA1 hash = SHA1.newInstance();
+ // Write to a buffer and copy to the file only if everything was fine
+ TemporaryBuffer buffer = new TemporaryBuffer.LocalFile(null);
+ try {
+ switch (hunk.getType()) {
+ case LITERAL_DEFLATED:
+ // This just overwrites the file. We need to check the hash of
+ // the base.
+ checkOid(fh.getOldId().toObjectId(), id, fh.getChangeType(), f,
+ path);
+ initHash(hash, hunk.getSize());
+ try (OutputStream out = buffer;
+ InputStream inflated = new SHA1InputStream(hash,
+ new InflaterInputStream(
+ new BinaryHunkInputStream(
+ new ByteArrayInputStream(
+ hunk.getBuffer(), start,
+ length))))) {
+ DirCacheCheckout.getContent(repository, path, checkOut,
+ new StreamLoader(() -> inflated, hunk.getSize()),
+ null, out);
+ if (!fh.getNewId().toObjectId().equals(hash.toObjectId())) {
+ throw new PatchApplyException(MessageFormat.format(
+ JGitText.get().applyBinaryResultOidWrong,
+ path));
+ }
+ }
+ try (InputStream bufIn = buffer.openInputStream()) {
+ Files.copy(bufIn, f.toPath(),
+ StandardCopyOption.REPLACE_EXISTING);
+ }
+ break;
+ case DELTA_DEFLATED:
+ // Unfortunately delta application needs random access to the
+ // base to construct the result.
+ byte[] base;
+ try (InputStream input = loader.load()) {
+ base = IO.readWholeStream(input, 0).array();
+ }
+ // At least stream the result!
+ try (BinaryDeltaInputStream input = new BinaryDeltaInputStream(
+ base,
+ new InflaterInputStream(new BinaryHunkInputStream(
+ new ByteArrayInputStream(hunk.getBuffer(),
+ start, length))))) {
+ long finalSize = input.getExpectedResultSize();
+ initHash(hash, finalSize);
+ try (OutputStream out = buffer;
+ SHA1InputStream hashed = new SHA1InputStream(hash,
+ input)) {
+ DirCacheCheckout.getContent(repository, path, checkOut,
+ new StreamLoader(() -> hashed, finalSize), null,
+ out);
+ if (!fh.getNewId().toObjectId()
+ .equals(hash.toObjectId())) {
+ throw new PatchApplyException(MessageFormat.format(
+ JGitText.get().applyBinaryResultOidWrong,
+ path));
+ }
+ }
+ }
+ try (InputStream bufIn = buffer.openInputStream()) {
+ Files.copy(bufIn, f.toPath(),
+ StandardCopyOption.REPLACE_EXISTING);
+ }
+ break;
+ default:
+ break;
+ }
+ } finally {
+ buffer.destroy();
+ }
+ }
+
+ private void applyText(Repository repository, String path, RawText rt,
+ File f, FileHeader fh, CheckoutMetadata checkOut)
throws IOException, PatchApplyException {
- RawText rt = new RawText(f);
- List<String> oldLines = new ArrayList<>(rt.size());
- for (int i = 0; i < rt.size(); i++)
- oldLines.add(rt.getString(i));
- List<String> newLines = new ArrayList<>(oldLines);
+ List<ByteBuffer> oldLines = new ArrayList<>(rt.size());
+ for (int i = 0; i < rt.size(); i++) {
+ oldLines.add(rt.getRawString(i));
+ }
+ List<ByteBuffer> newLines = new ArrayList<>(oldLines);
int afterLastHunk = 0;
int lineNumberShift = 0;
int lastHunkNewLine = -1;
@@ -182,9 +568,9 @@
b.length);
RawText hrt = new RawText(b);
- List<String> hunkLines = new ArrayList<>(hrt.size());
+ List<ByteBuffer> hunkLines = new ArrayList<>(hrt.size());
for (int i = 0; i < hrt.size(); i++) {
- hunkLines.add(hrt.getString(i));
+ hunkLines.add(hrt.getRawString(i));
}
if (hh.getNewStartLine() == 0) {
@@ -253,8 +639,13 @@
lineNumberShift = applyAt - hh.getNewStartLine() + 1;
int sz = hunkLines.size();
for (int j = 1; j < sz; j++) {
- String hunkLine = hunkLines.get(j);
- switch (hunkLine.charAt(0)) {
+ ByteBuffer hunkLine = hunkLines.get(j);
+ if (!hunkLine.hasRemaining()) {
+ // Completely empty line; accept as empty context line
+ applyAt++;
+ continue;
+ }
+ switch (hunkLine.array()[hunkLine.position()]) {
case ' ':
applyAt++;
break;
@@ -262,7 +653,7 @@
newLines.remove(applyAt);
break;
case '+':
- newLines.add(applyAt++, hunkLine.substring(1));
+ newLines.add(applyAt++, slice(hunkLine, 1));
break;
default:
break;
@@ -271,39 +662,64 @@
afterLastHunk = applyAt;
}
if (!isNoNewlineAtEndOfFile(fh)) {
- newLines.add(""); //$NON-NLS-1$
+ newLines.add(null);
}
if (!rt.isMissingNewlineAtEnd()) {
- oldLines.add(""); //$NON-NLS-1$
+ oldLines.add(null);
}
- if (!isChanged(oldLines, newLines)) {
- return; // Don't touch the file
+ if (oldLines.equals(newLines)) {
+ return; // Unchanged; don't touch the file
}
- try (Writer fw = Files.newBufferedWriter(f.toPath())) {
- for (Iterator<String> l = newLines.iterator(); l.hasNext();) {
- fw.write(l.next());
- if (l.hasNext()) {
- // Don't bother handling line endings - if it was Windows,
- // the \r is still there!
- fw.write('\n');
+
+ TemporaryBuffer buffer = new TemporaryBuffer.LocalFile(null);
+ try {
+ try (OutputStream out = buffer) {
+ for (Iterator<ByteBuffer> l = newLines.iterator(); l
+ .hasNext();) {
+ ByteBuffer line = l.next();
+ if (line == null) {
+ // Must be the marker for the final newline
+ break;
+ }
+ out.write(line.array(), line.position(), line.remaining());
+ if (l.hasNext()) {
+ out.write('\n');
+ }
}
}
+ try (OutputStream output = new FileOutputStream(f)) {
+ DirCacheCheckout.getContent(repository, path, checkOut,
+ new StreamLoader(buffer::openInputStream,
+ buffer.length()),
+ null, output);
+ }
+ } finally {
+ buffer.destroy();
}
- getRepository().getFS().setExecute(f, fh.getNewMode() == FileMode.EXECUTABLE_FILE);
+ repository.getFS().setExecute(f,
+ fh.getNewMode() == FileMode.EXECUTABLE_FILE);
}
- private boolean canApplyAt(List<String> hunkLines, List<String> newLines,
- int line) {
+ private boolean canApplyAt(List<ByteBuffer> hunkLines,
+ List<ByteBuffer> newLines, int line) {
int sz = hunkLines.size();
int limit = newLines.size();
int pos = line;
for (int j = 1; j < sz; j++) {
- String hunkLine = hunkLines.get(j);
- switch (hunkLine.charAt(0)) {
+ ByteBuffer hunkLine = hunkLines.get(j);
+ if (!hunkLine.hasRemaining()) {
+ // Empty line. Accept as empty context line.
+ if (pos >= limit || newLines.get(pos).hasRemaining()) {
+ return false;
+ }
+ pos++;
+ continue;
+ }
+ switch (hunkLine.array()[hunkLine.position()]) {
case ' ':
case '-':
if (pos >= limit
- || !newLines.get(pos).equals(hunkLine.substring(1))) {
+ || !newLines.get(pos).equals(slice(hunkLine, 1))) {
return false;
}
pos++;
@@ -315,13 +731,9 @@
return true;
}
- private static boolean isChanged(List<String> ol, List<String> nl) {
- if (ol.size() != nl.size())
- return true;
- for (int i = 0; i < ol.size(); i++)
- if (!ol.get(i).equals(nl.get(i)))
- return true;
- return false;
+ private ByteBuffer slice(ByteBuffer b, int off) {
+ int newOffset = b.position() + off;
+ return ByteBuffer.wrap(b.array(), newOffset, b.limit() - newOffset);
}
private boolean isNoNewlineAtEndOfFile(FileHeader fh) {
@@ -330,8 +742,51 @@
return false;
}
HunkHeader lastHunk = hunks.get(hunks.size() - 1);
- RawText lhrt = new RawText(lastHunk.getBuffer());
+ byte[] buf = new byte[lastHunk.getEndOffset()
+ - lastHunk.getStartOffset()];
+ System.arraycopy(lastHunk.getBuffer(), lastHunk.getStartOffset(), buf,
+ 0, buf.length);
+ RawText lhrt = new RawText(buf);
return lhrt.getString(lhrt.size() - 1)
.equals("\\ No newline at end of file"); //$NON-NLS-1$
}
+
+ /**
+ * An {@link InputStream} that updates a {@link SHA1} on every byte read.
+ * The hash is supposed to have been initialized before reading starts.
+ */
+ private static class SHA1InputStream extends InputStream {
+
+ private final SHA1 hash;
+
+ private final InputStream in;
+
+ SHA1InputStream(SHA1 hash, InputStream in) {
+ this.hash = hash;
+ this.in = in;
+ }
+
+ @Override
+ public int read() throws IOException {
+ int b = in.read();
+ if (b >= 0) {
+ hash.update((byte) b);
+ }
+ return b;
+ }
+
+ @Override
+ public int read(byte[] b, int off, int len) throws IOException {
+ int n = in.read(b, off, len);
+ if (n > 0) {
+ hash.update(b, off, n);
+ }
+ return n;
+ }
+
+ @Override
+ public void close() throws IOException {
+ in.close();
+ }
+ }
}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java b/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java
index 9f4b1fa..d09da01 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2009, Google Inc.
- * Copyright (C) 2008-2009, Johannes E. Schindelin <johannes.schindelin@gmx.de> and others
+ * Copyright (C) 2008-2021, Johannes E. Schindelin <johannes.schindelin@gmx.de> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
@@ -16,6 +16,7 @@
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
+import java.nio.ByteBuffer;
import org.eclipse.jgit.errors.BinaryBlobException;
import org.eclipse.jgit.errors.LargeObjectException;
@@ -165,6 +166,27 @@
}
/**
+ * Get the raw text for a single line.
+ *
+ * @param i
+ * index of the line to extract. Note this is 0-based, so line
+ * number 1 is actually index 0.
+ * @return the text for the line, without a trailing LF, as a
+ * {@link ByteBuffer} that is backed by a slice of the
+ * {@link #getRawContent() raw content}, with the buffer's position
+ * on the start of the line and the limit at the end.
+ * @since 5.12
+ */
+ public ByteBuffer getRawString(int i) {
+ int s = getStart(i);
+ int e = getEnd(i);
+ if (e > 0 && content[e - 1] == '\n') {
+ e--;
+ }
+ return ByteBuffer.wrap(content, s, e - s);
+ }
+
+ /**
* Get the text for a region of lines.
*
* @param begin
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
index ab9fc5c..fd54986 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
@@ -41,6 +41,9 @@
/***/ public String aNewObjectIdIsRequired;
/***/ public String anExceptionOccurredWhileTryingToAddTheIdOfHEAD;
/***/ public String anSSHSessionHasBeenAlreadyCreated;
+ /***/ public String applyBinaryBaseOidWrong;
+ /***/ public String applyBinaryOidTooShort;
+ /***/ public String applyBinaryResultOidWrong;
/***/ public String applyingCommit;
/***/ public String archiveFormatAlreadyAbsent;
/***/ public String archiveFormatAlreadyRegistered;
@@ -65,7 +68,19 @@
/***/ public String badSectionEntry;
/***/ public String badShallowLine;
/***/ public String bareRepositoryNoWorkdirAndIndex;
+ /***/ public String base85invalidChar;
+ /***/ public String base85length;
+ /***/ public String base85overflow;
+ /***/ public String base85tooLong;
+ /***/ public String base85tooShort;
/***/ public String baseLengthIncorrect;
+ /***/ public String binaryDeltaBaseLengthMismatch;
+ /***/ public String binaryDeltaInvalidOffset;
+ /***/ public String binaryDeltaInvalidResultLength;
+ /***/ public String binaryHunkDecodeError;
+ /***/ public String binaryHunkInvalidLength;
+ /***/ public String binaryHunkLineTooShort;
+ /***/ public String binaryHunkMissingNewline;
/***/ public String bitmapMissingObject;
/***/ public String bitmapsMustBePrepared;
/***/ public String blameNotCommittedYet;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/Base85.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/Base85.java
new file mode 100644
index 0000000..54b7cfc
--- /dev/null
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/Base85.java
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util;
+
+import java.nio.charset.StandardCharsets;
+import java.text.MessageFormat;
+import java.util.Arrays;
+
+import org.eclipse.jgit.internal.JGitText;
+
+/**
+ * Base-85 encoder/decoder.
+ *
+ * @since 5.12
+ */
+public final class Base85 {
+
+ private static final byte[] ENCODE = ("0123456789" //$NON-NLS-1$
+ + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" //$NON-NLS-1$
+ + "abcdefghijklmnopqrstuvwxyz" //$NON-NLS-1$
+ + "!#$%&()*+-;<=>?@^_`{|}~") //$NON-NLS-1$
+ .getBytes(StandardCharsets.US_ASCII);
+
+ private static final int[] DECODE = new int[256];
+
+ static {
+ Arrays.fill(DECODE, -1);
+ for (int i = 0; i < ENCODE.length; i++) {
+ DECODE[ENCODE[i]] = i;
+ }
+ }
+
+ private Base85() {
+ // No instantiation
+ }
+
+ /**
+ * Determines the length of the base-85 encoding for {@code rawLength}
+ * bytes.
+ *
+ * @param rawLength
+ * number of bytes to encode
+ * @return number of bytes needed for the base-85 encoding of
+ * {@code rawLength} bytes
+ */
+ public static int encodedLength(int rawLength) {
+ return (rawLength + 3) / 4 * 5;
+ }
+
+ /**
+ * Encodes the given {@code data} in Base-85.
+ *
+ * @param data
+ * to encode
+ * @return encoded data
+ */
+ public static byte[] encode(byte[] data) {
+ return encode(data, 0, data.length);
+ }
+
+ /**
+ * Encodes {@code length} bytes of {@code data} in Base-85, beginning at the
+ * {@code start} index.
+ *
+ * @param data
+ * to encode
+ * @param start
+ * index of the first byte to encode
+ * @param length
+ * number of bytes to encode
+ * @return encoded data
+ */
+ public static byte[] encode(byte[] data, int start, int length) {
+ byte[] result = new byte[encodedLength(length)];
+ int end = start + length;
+ int in = start;
+ int out = 0;
+ while (in < end) {
+ // Accumulate remaining bytes MSB first as a 32bit value
+ long accumulator = ((long) (data[in++] & 0xFF)) << 24;
+ if (in < end) {
+ accumulator |= (data[in++] & 0xFF) << 16;
+ if (in < end) {
+ accumulator |= (data[in++] & 0xFF) << 8;
+ if (in < end) {
+ accumulator |= (data[in++] & 0xFF);
+ }
+ }
+ }
+ // Write the 32bit value in base-85 encoding, also MSB first
+ for (int i = 4; i >= 0; i--) {
+ result[out + i] = ENCODE[(int) (accumulator % 85)];
+ accumulator /= 85;
+ }
+ out += 5;
+ }
+ return result;
+ }
+
+ /**
+ * Decodes the Base-85 {@code encoded} data into a byte array of
+ * {@code expectedSize} bytes.
+ *
+ * @param encoded
+ * Base-85 encoded data
+ * @param expectedSize
+ * of the result
+ * @return the decoded bytes
+ * @throws IllegalArgumentException
+ * if expectedSize doesn't match, the encoded data has a length
+ * that is not a multiple of 5, or there are invalid characters
+ * in the encoded data
+ */
+ public static byte[] decode(byte[] encoded, int expectedSize) {
+ return decode(encoded, 0, encoded.length, expectedSize);
+ }
+
+ /**
+ * Decodes {@code length} bytes of Base-85 {@code encoded} data, beginning
+ * at the {@code start} index, into a byte array of {@code expectedSize}
+ * bytes.
+ *
+ * @param encoded
+ * Base-85 encoded data
+ * @param start
+ * index at which the data to decode starts in {@code encoded}
+ * @param length
+ * of the Base-85 encoded data
+ * @param expectedSize
+ * of the result
+ * @return the decoded bytes
+ * @throws IllegalArgumentException
+ * if expectedSize doesn't match, {@code length} is not a
+ * multiple of 5, or there are invalid characters in the encoded
+ * data
+ */
+ public static byte[] decode(byte[] encoded, int start, int length,
+ int expectedSize) {
+ if (length % 5 != 0) {
+ throw new IllegalArgumentException(JGitText.get().base85length);
+ }
+ byte[] result = new byte[expectedSize];
+ int end = start + length;
+ int in = start;
+ int out = 0;
+ while (in < end && out < expectedSize) {
+ // Accumulate 5 bytes, "MSB" first
+ long accumulator = 0;
+ for (int i = 4; i >= 0; i--) {
+ int val = DECODE[encoded[in++] & 0xFF];
+ if (val < 0) {
+ throw new IllegalArgumentException(MessageFormat.format(
+ JGitText.get().base85invalidChar,
+ Integer.toHexString(encoded[in - 1] & 0xFF)));
+ }
+ accumulator = accumulator * 85 + val;
+ }
+ if (accumulator > 0xFFFF_FFFFL) {
+ throw new IllegalArgumentException(
+ MessageFormat.format(JGitText.get().base85overflow,
+ Long.toHexString(accumulator)));
+ }
+ // Write remaining bytes, MSB first
+ result[out++] = (byte) (accumulator >>> 24);
+ if (out < expectedSize) {
+ result[out++] = (byte) (accumulator >>> 16);
+ if (out < expectedSize) {
+ result[out++] = (byte) (accumulator >>> 8);
+ if (out < expectedSize) {
+ result[out++] = (byte) accumulator;
+ }
+ }
+ }
+ }
+ // Should have exhausted 'in' and filled 'out' completely
+ if (in < end) {
+ throw new IllegalArgumentException(
+ MessageFormat.format(JGitText.get().base85tooLong,
+ Integer.valueOf(expectedSize)));
+ }
+ if (out < expectedSize) {
+ throw new IllegalArgumentException(
+ MessageFormat.format(JGitText.get().base85tooShort,
+ Integer.valueOf(expectedSize)));
+ }
+ return result;
+ }
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryDeltaInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryDeltaInputStream.java
new file mode 100644
index 0000000..7f0d87f
--- /dev/null
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryDeltaInputStream.java
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util.io;
+
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StreamCorruptedException;
+import java.text.MessageFormat;
+
+import org.eclipse.jgit.internal.JGitText;
+
+/**
+ * An {@link InputStream} that applies a binary delta to a base on the fly.
+ * <p>
+ * Delta application to a base needs random access to the base data. The delta
+ * is expressed as a sequence of copy and insert instructions. A copy
+ * instruction has the form "COPY fromOffset length" and says "copy length bytes
+ * from the base, starting at offset fromOffset, to the result". An insert
+ * instruction has the form "INSERT length" followed by length bytes and says
+ * "copy the next length bytes from the delta to the result".
+ * </p>
+ * <p>
+ * These instructions are generated using a content-defined chunking algorithm
+ * (currently C git uses the standard Rabin variant; but there are others that
+ * could be used) that identifies equal chunks. It is entirely possible that a
+ * later copy instruction has a fromOffset that is before the fromOffset of an
+ * earlier copy instruction.
+ * </p>
+ * <p>
+ * This makes it impossible to stream the base.
+ * </p>
+ * <p>
+ * JGit is limited to 2GB maximum size for the base since array indices are
+ * signed 32bit values.
+ *
+ * @since 5.12
+ */
+public class BinaryDeltaInputStream extends InputStream {
+
+ private final byte[] base;
+
+ private final InputStream delta;
+
+ private long resultLength;
+
+ private long toDeliver = -1;
+
+ private int fromBase;
+
+ private int fromDelta;
+
+ private int baseOffset = -1;
+
+ /**
+ * Creates a new {@link BinaryDeltaInputStream} that applies {@code delta}
+ * to {@code base}.
+ *
+ * @param base
+ * data to apply the delta to
+ * @param delta
+ * {@link InputStream} delivering the delta to apply
+ */
+ public BinaryDeltaInputStream(byte[] base, InputStream delta) {
+ this.base = base;
+ this.delta = delta;
+ }
+
+ @Override
+ public int read() throws IOException {
+ int b = readNext();
+ if (b >= 0) {
+ toDeliver--;
+ }
+ return b;
+ }
+
+ private void initialize() throws IOException {
+ long baseSize = readVarInt(delta);
+ if (baseSize > Integer.MAX_VALUE || baseSize < 0
+ || (int) baseSize != base.length) {
+ throw new IOException(MessageFormat.format(
+ JGitText.get().binaryDeltaBaseLengthMismatch,
+ Integer.valueOf(base.length), Long.valueOf(baseSize)));
+ }
+ resultLength = readVarInt(delta);
+ if (resultLength < 0) {
+ throw new StreamCorruptedException(
+ JGitText.get().binaryDeltaInvalidResultLength);
+ }
+ toDeliver = resultLength;
+ baseOffset = 0;
+ }
+
+ private int readNext() throws IOException {
+ if (baseOffset < 0) {
+ initialize();
+ }
+ if (fromBase > 0) {
+ fromBase--;
+ return base[baseOffset++] & 0xFF;
+ } else if (fromDelta > 0) {
+ fromDelta--;
+ return delta.read();
+ }
+ int command = delta.read();
+ if (command < 0) {
+ return -1;
+ }
+ if ((command & 0x80) != 0) {
+ // Decode offset and length to read from base
+ long copyOffset = 0;
+ for (int i = 1, shift = 0; i < 0x10; i *= 2, shift += 8) {
+ if ((command & i) != 0) {
+ copyOffset |= ((long) next(delta)) << shift;
+ }
+ }
+ int copySize = 0;
+ for (int i = 0x10, shift = 0; i < 0x80; i *= 2, shift += 8) {
+ if ((command & i) != 0) {
+ copySize |= next(delta) << shift;
+ }
+ }
+ if (copySize == 0) {
+ copySize = 0x10000;
+ }
+ if (copyOffset > base.length - copySize) {
+ throw new StreamCorruptedException(MessageFormat.format(
+ JGitText.get().binaryDeltaInvalidOffset,
+ Long.valueOf(copyOffset), Integer.valueOf(copySize)));
+ }
+ baseOffset = (int) copyOffset;
+ fromBase = copySize;
+ return readNext();
+ } else if (command != 0) {
+ // The next 'command' bytes come from the delta
+ fromDelta = command - 1;
+ return delta.read();
+ } else {
+ // Zero is reserved
+ throw new StreamCorruptedException(
+ JGitText.get().unsupportedCommand0);
+ }
+ }
+
+ private int next(InputStream in) throws IOException {
+ int b = in.read();
+ if (b < 0) {
+ throw new EOFException();
+ }
+ return b;
+ }
+
+ private long readVarInt(InputStream in) throws IOException {
+ long val = 0;
+ int shift = 0;
+ int b;
+ do {
+ b = next(in);
+ val |= ((long) (b & 0x7f)) << shift;
+ shift += 7;
+ } while ((b & 0x80) != 0);
+ return val;
+ }
+
+ /**
+ * Tells the expected size of the final result.
+ *
+ * @return the size
+ * @throws IOException
+ * if the size cannot be determined from {@code delta}
+ */
+ public long getExpectedResultSize() throws IOException {
+ if (baseOffset < 0) {
+ initialize();
+ }
+ return resultLength;
+ }
+
+ /**
+ * Tells whether the delta has been fully consumed, and the expected number
+ * of bytes for the combined result have been read from this
+ * {@link BinaryDeltaInputStream}.
+ *
+ * @return whether delta application was successful
+ */
+ public boolean isFullyConsumed() {
+ try {
+ return toDeliver == 0 && delta.read() < 0;
+ } catch (IOException e) {
+ return toDeliver == 0;
+ }
+ }
+
+ @Override
+ public void close() throws IOException {
+ delta.close();
+ }
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkInputStream.java
new file mode 100644
index 0000000..57b2d7a
--- /dev/null
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkInputStream.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util.io;
+
+import java.io.EOFException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StreamCorruptedException;
+import java.text.MessageFormat;
+
+import org.eclipse.jgit.internal.JGitText;
+import org.eclipse.jgit.util.Base85;
+
+/**
+ * A stream that decodes git binary patch data on the fly.
+ *
+ * @since 5.12
+ */
+public class BinaryHunkInputStream extends InputStream {
+
+ private final InputStream in;
+
+ private int lineNumber;
+
+ private byte[] buffer;
+
+ private int pos = 0;
+
+ /**
+ * Creates a new {@link BinaryHunkInputStream}.
+ *
+ * @param in
+ * {@link InputStream} to read the base-85 encoded patch data
+ * from
+ */
+ public BinaryHunkInputStream(InputStream in) {
+ this.in = in;
+ }
+
+ @Override
+ public int read() throws IOException {
+ if (pos < 0) {
+ return -1;
+ }
+ if (buffer == null || pos == buffer.length) {
+ fillBuffer();
+ }
+ if (pos >= 0) {
+ return buffer[pos++] & 0xFF;
+ }
+ return -1;
+ }
+
+ @Override
+ public void close() throws IOException {
+ in.close();
+ buffer = null;
+ }
+
+ private void fillBuffer() throws IOException {
+ int length = in.read();
+ if (length < 0) {
+ pos = length;
+ buffer = null;
+ return;
+ }
+ lineNumber++;
+ // Length is encoded with characters, A..Z for 1..26 and a..z for 27..52
+ if ('A' <= length && length <= 'Z') {
+ length = length - 'A' + 1;
+ } else if ('a' <= length && length <= 'z') {
+ length = length - 'a' + 27;
+ } else {
+ throw new StreamCorruptedException(MessageFormat.format(
+ JGitText.get().binaryHunkInvalidLength,
+ Integer.valueOf(lineNumber), Integer.toHexString(length)));
+ }
+ byte[] encoded = new byte[Base85.encodedLength(length)];
+ for (int i = 0; i < encoded.length; i++) {
+ int b = in.read();
+ if (b < 0 || b == '\n') {
+ throw new EOFException(MessageFormat.format(
+ JGitText.get().binaryHunkInvalidLength,
+ Integer.valueOf(lineNumber)));
+ }
+ encoded[i] = (byte) b;
+ }
+ // Must be followed by a newline; tolerate EOF.
+ int b = in.read();
+ if (b >= 0 && b != '\n') {
+ throw new StreamCorruptedException(MessageFormat.format(
+ JGitText.get().binaryHunkMissingNewline,
+ Integer.valueOf(lineNumber)));
+ }
+ try {
+ buffer = Base85.decode(encoded, length);
+ } catch (IllegalArgumentException e) {
+ StreamCorruptedException ex = new StreamCorruptedException(
+ MessageFormat.format(JGitText.get().binaryHunkDecodeError,
+ Integer.valueOf(lineNumber)));
+ ex.initCause(e);
+ throw ex;
+ }
+ pos = 0;
+ }
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkOutputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkOutputStream.java
new file mode 100644
index 0000000..30551c0
--- /dev/null
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/io/BinaryHunkOutputStream.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2021 Thomas Wolf <thomas.wolf@paranor.ch> and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.util.io;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.eclipse.jgit.util.Base85;
+
+/**
+ * An {@link OutputStream} that encodes data for a git binary patch.
+ *
+ * @since 5.12
+ */
+public class BinaryHunkOutputStream extends OutputStream {
+
+ private static final int MAX_BYTES = 52;
+
+ private final OutputStream out;
+
+ private final byte[] buffer = new byte[MAX_BYTES];
+
+ private int pos;
+
+ /**
+ * Creates a new {@link BinaryHunkOutputStream}.
+ *
+ * @param out
+ * {@link OutputStream} to write the encoded data to
+ */
+ public BinaryHunkOutputStream(OutputStream out) {
+ this.out = out;
+ }
+
+ /**
+ * Flushes and closes this stream, and closes the underlying
+ * {@link OutputStream}.
+ */
+ @Override
+ public void close() throws IOException {
+ flush();
+ out.close();
+ }
+
+ /**
+ * Writes any buffered output as a binary patch line to the underlying
+ * {@link OutputStream} and flushes that stream, too.
+ */
+ @Override
+ public void flush() throws IOException {
+ if (pos > 0) {
+ encode(buffer, 0, pos);
+ pos = 0;
+ }
+ out.flush();
+ }
+
+ @Override
+ public void write(int b) throws IOException {
+ buffer[pos++] = (byte) b;
+ if (pos == buffer.length) {
+ encode(buffer, 0, pos);
+ pos = 0;
+ }
+ }
+
+ @Override
+ public void write(byte[] b, int off, int len) throws IOException {
+ if (len == 0) {
+ return;
+ }
+ int toCopy = len;
+ int in = off;
+ if (pos > 0) {
+ // Fill the buffer
+ int chunk = Math.min(toCopy, buffer.length - pos);
+ System.arraycopy(b, in, buffer, pos, chunk);
+ in += chunk;
+ pos += chunk;
+ toCopy -= chunk;
+ if (pos == buffer.length) {
+ encode(buffer, 0, pos);
+ pos = 0;
+ }
+ if (toCopy == 0) {
+ return;
+ }
+ }
+ while (toCopy >= MAX_BYTES) {
+ encode(b, in, MAX_BYTES);
+ toCopy -= MAX_BYTES;
+ in += MAX_BYTES;
+ }
+ if (toCopy > 0) {
+ System.arraycopy(b, in, buffer, 0, toCopy);
+ pos = toCopy;
+ }
+ }
+
+ private void encode(byte[] data, int off, int length) throws IOException {
+ if (length <= 26) {
+ out.write('A' + length - 1);
+ } else {
+ out.write('a' + length - 27);
+ }
+ out.write(Base85.encode(data, off, length));
+ out.write('\n');
+ }
+}