Add missing documentation of SSH "version" command
Commit 018332f added a "version" command in the SSH daemon,
but the new command was never documented.
Change-Id: I3f0aeec106d01edd4fb674d1b34daad1da3e9ab9
diff --git a/Documentation/cmd-index.txt b/Documentation/cmd-index.txt
index 3895b90..55cb456 100644
--- a/Documentation/cmd-index.txt
+++ b/Documentation/cmd-index.txt
@@ -81,6 +81,9 @@
link:cmd-stream-events.html[gerrit stream-events]::
Monitor events occurring in real time.
+link:cmd-version.html[gerrit version]::
+ Show the currently executing version of Gerrit.
+
git upload-pack::
Standard Git server side command for client side `git fetch`.
diff --git a/Documentation/cmd-version.txt b/Documentation/cmd-version.txt
new file mode 100644
index 0000000..d1f94ea
--- /dev/null
+++ b/Documentation/cmd-version.txt
@@ -0,0 +1,48 @@
+gerrit version
+================
+
+NAME
+----
+gerrit version - Show the version of the currently executing Gerrit server
+
+SYNOPSIS
+--------
+[verse]
+'ssh' -p <port> <host> 'gerrit version'
+
+DESCRIPTION
+-----------
+Displays a one-line response with the string `gerrit version` followed
+by the currently executing version of Gerrit.
+
+The `git describe` command is used to generate the version string based
+on the Git commit used to build Gerrit. For official releases of Gerrit,
+the version string will be equal to the Git tag set in the Gerrit source
+code, which in turn is equal to the name of the release (for example
+2.4.2). When building Gerrit from another commit (one that doesn't have
+an official-looking tag pointing to it), the version string has the form
+`<tagname>-<n>-g<sha1>`, where `<n>` is an integer indicating the number
+of commits ahead of the `<tagname>` tag the commit is, and `<sha1>` is
+the seven-character abbreviated SHA-1 of the commit. See the `git
+describe` documentation for details on how `<tagname>` is chosen and how
+`<n>` is computed.
+
+ACCESS
+------
+Any user who has configured an SSH key.
+
+SCRIPTING
+---------
+This command is intended to be used in scripts.
+
+EXAMPLES
+--------
+
+=====
+ $ ssh -p 29418 review.example.com gerrit version
+ gerrit version 2.4.2
+=====
+
+GERRIT
+------
+Part of link:index.html[Gerrit Code Review]
