ResourceServlet: Consistently use class load time as mtime

The GWT UI static servlets (e.g. WarGwtUiServlet) were already using
class load time as the "mtime" of a file, to account for the fact that
the build system always sets the mtime of zipfile entries to the Unix
epoch. (This is intentional, to keep bazel builds reproducible.)

PolyGerrit has the same problem served from a WAR file, but was not
applying this hack. Complicating the situation is that the same class
(PolyGerritUiServlet) is used for the dev server, where we can trust
the mtime. Hackily check whether the path in question is on-disk in the
implementation of getLastModifiedTime.

There was also a bug in ResourceServlet#maybeStream that was bypassing
getLastModifiedTime when checking If-Modified-Since; fix that as well.

While we're in here, fix the other broken class in this hierarchy,
WarDocServlet.

In retrospect, it may have been a mistake to make ResourceServlet try to
handle all possible caching behaviors, since it makes bugs like this all
too easy to introduce. Long term, may want to disentangle the on-disk
implementation, which may depend on mtime to determine staleness, from
the zipfile implementation, which shouldn't.

Bug: Issue 6885
Change-Id: Iea041774c1005cb9918c462d01aef05cff61da23
3 files changed
tree: 16f1f59cedde7430441a887c1cb09dff4ff18d80
  1. .settings/
  2. contrib/
  3. Documentation/
  4. gerrit-acceptance-framework/
  5. gerrit-acceptance-tests/
  6. gerrit-cache-h2/
  7. gerrit-common/
  8. gerrit-elasticsearch/
  9. gerrit-extension-api/
  10. gerrit-gpg/
  11. gerrit-gwtdebug/
  12. gerrit-gwtexpui/
  13. gerrit-gwtui/
  14. gerrit-gwtui-common/
  15. gerrit-httpd/
  16. gerrit-index/
  17. gerrit-launcher/
  18. gerrit-lucene/
  19. gerrit-main/
  20. gerrit-oauth/
  21. gerrit-openid/
  22. gerrit-patch-commonsnet/
  23. gerrit-patch-jgit/
  24. gerrit-pgm/
  25. gerrit-plugin-api/
  26. gerrit-plugin-gwtui/
  27. gerrit-prettify/
  28. gerrit-reviewdb/
  29. gerrit-server/
  30. gerrit-sshd/
  31. gerrit-test-util/
  32. gerrit-util-cli/
  33. gerrit-util-http/
  34. gerrit-util-ssl/
  35. gerrit-war/
  36. lib/
  37. plugins/
  38. polygerrit-ui/
  39. ReleaseNotes/
  40. tools/
  41. website/
  42. .bazelproject
  43. .editorconfig
  44. .git-blame-ignore-revs
  45. .gitignore
  46. .gitmodules
  47. .mailmap
  48. .pydevproject
  49. BUILD
  50. COPYING
  51. fake_pom.xml
  52. INSTALL
  53. README.md
  54. SUBMITTING_PATCHES
  55. version.bzl
  56. WORKSPACE
README.md

Gerrit Code Review

Gerrit is a code review and project management tool for Git based projects.

Build Status

Objective

Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer.

Gerrit simplifies Git based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged in by hand by the project maintainer.

Documentation

For information about how to install and use Gerrit, refer to the documentation.

Source

Our canonical Git repository is located on googlesource.com. There is a mirror of the repository on Github.

Reporting bugs

Please report bugs on the issue tracker.

Contribute

Gerrit is the work of hundreds of contributors. We appreciate your help!

Please read the contribution guidelines.

Note that we do not accept Pull Requests via the Github mirror.

Getting in contact

The IRC channel on freenode is #gerrit. An archive is available at: echelog.com.

The Developer Mailing list is repo-discuss on Google Groups.

License

Gerrit is provided under the Apache License 2.0.

Build

Install Bazel and run the following:

    git clone --recursive https://gerrit.googlesource.com/gerrit
    cd gerrit && bazel build release

Install binary packages (Deb/Rpm)

The instruction how to configure GerritForge/BinTray repositories is here

On Debian/Ubuntu run:

    apt-get update & apt-get install gerrit=<version>-<release>

NOTE: release is a counter that starts with 1 and indicates the number of packages that have been released with the same version of the software.

On CentOS/RedHat run:

    yum clean all && yum install gerrit-<version>[-<release>]

On Fedora run:

    dnf clean all && dnf install gerrit-<version>[-<release>]

Use pre-built Gerrit images on Docker

Docker images of Gerrit are available on DockerHub

To run a CentOS 7 based Gerrit image:

    docker run -p 8080:8080 gerritforge/gerrit-centos7[:version]

To run a Ubuntu 15.04 based Gerrit image:

    docker run -p 8080:8080 gerritforge/gerrit-ubuntu15.04[:version]

NOTE: release is optional. Last released package of the version is installed if the release number is omitted.