[no-sync] Add method to check for diffs between the current checkout and another commit.

Bug: 1339472

Change-Id: If97d2fad7e5c61ec907e15a00db225b653a62bef
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3738365
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Joanna Wang <jojwang@chromium.org>
2 files changed
tree: 31b47f224e30969f0c6d36534fddef4e4e448a94
  1. bootstrap/
  2. fetch_configs/
  3. git-templates/
  4. infra/
  5. man/
  6. python-bin/
  7. python2-bin/
  8. recipes/
  9. testing_support/
  10. tests/
  11. third_party/
  12. win_toolchain/
  13. zsh-goodies/
  14. .cipd_impl.ps1
  15. .gitattributes
  16. .gitignore
  17. .isort.cfg
  18. .style.yapf
  19. .vpython
  20. .vpython3
  21. auth.py
  22. autoninja
  23. autoninja.bat
  24. autoninja.py
  25. bb
  26. bb.bat
  27. black
  28. bootstrap_python3
  29. breakpad.py
  30. cipd
  31. cipd.bat
  32. cipd_bin_setup.bat
  33. cipd_bin_setup.sh
  34. cipd_client_version
  35. cipd_client_version.digests
  36. cipd_manifest.txt
  37. cipd_manifest.versions
  38. cit
  39. cit.bat
  40. cit.py
  41. clang-format
  42. clang-format.bat
  43. clang_format.py
  44. clang_format_merge_driver
  45. clang_format_merge_driver.bat
  46. clang_format_merge_driver.py
  47. codereview.settings
  48. compile_single_file
  49. compile_single_file.bat
  50. compile_single_file.py
  51. cpplint.bat
  52. cpplint.py
  53. cpplint_chromium.py
  54. cros
  55. CROS_OWNERS
  56. crosjobs
  57. detect_host_arch.py
  58. DIR_METADATA
  59. dirmd
  60. dirmd.bat
  61. download_from_google_storage
  62. download_from_google_storage.bat
  63. download_from_google_storage.py
  64. ensure_bootstrap
  65. fetch
  66. fetch.bat
  67. fetch.py
  68. fix_encoding.py
  69. gclient
  70. gclient-new-workdir.py
  71. gclient.bat
  72. gclient.py
  73. gclient_completion.sh
  74. gclient_eval.py
  75. gclient_paths.py
  76. gclient_scm.py
  77. gclient_utils.py
  78. gerrit_client.py
  79. gerrit_util.py
  80. git-cache
  81. git-cl
  82. git-crrev-parse
  83. git-drover
  84. git-find-releases
  85. git-footers
  86. git-freeze
  87. git-gs
  88. git-hyper-blame
  89. git-map
  90. git-map-branches
  91. git-mark-merge-base
  92. git-migrate-default-branch
  93. git-nav-downstream
  94. git-nav-upstream
  95. git-new-branch
  96. git-number
  97. git-rebase-update
  98. git-rename-branch
  99. git-reparent-branch
  100. git-retry
  101. git-runhooks
  102. git-squash-branch
  103. git-thaw
  104. git-upstream-diff
  105. git_cache.py
  106. git_cl.py
  107. git_cl_completion.sh
  108. git_common.py
  109. git_dates.py
  110. git_drover.py
  111. git_find_releases.py
  112. git_footers.py
  113. git_freezer.py
  114. git_hyper_blame.py
  115. git_map.py
  116. git_map_branches.py
  117. git_mark_merge_base.py
  118. git_migrate_default_branch.py
  119. git_nav_downstream.py
  120. git_new_branch.py
  121. git_number.py
  122. git_rebase_update.py
  123. git_rename_branch.py
  124. git_reparent_branch.py
  125. git_retry.py
  126. git_squash_branch.py
  127. git_upstream_diff.py
  128. gn
  129. gn.bat
  130. gn.py
  131. goma_auth
  132. goma_auth.bat
  133. goma_ctl
  134. goma_ctl.bat
  135. GOMA_OWNERS
  136. gsutil.py
  137. gsutil.py.bat
  138. gsutil.vpython3
  139. isort
  140. led
  141. led.bat
  142. LICENSE
  143. lockfile.py
  144. luci-auth
  145. luci-auth.bat
  146. LUCI_OWNERS
  147. lucicfg
  148. lucicfg.bat
  149. mac_toolchain
  150. metrics.py
  151. metrics.README.md
  152. metrics_utils.py
  153. my_activity.py
  154. ninja
  155. ninja-linux64
  156. ninja-mac
  157. ninja.exe
  158. ninjalog.README.md
  159. ninjalog_uploader.py
  160. ninjalog_uploader_wrapper.py
  161. OWNERS
  162. owners.py
  163. owners_client.py
  164. owners_finder.py
  165. pinpoint
  166. pinpoint.bat
  167. post_build_ninja_summary.py
  168. PRESUBMIT.py
  169. presubmit_canned_checks.py
  170. presubmit_canned_checks_test.py
  171. presubmit_canned_checks_test_mocks.py
  172. presubmit_support.py
  173. profile.xml
  174. prpc
  175. prpc.bat
  176. pylint
  177. pylint-1.5
  178. pylint-1.5.bat
  179. pylint-2.6
  180. pylint-2.6.bat
  181. pylint-2.7
  182. pylint-2.7.bat
  183. pylint.bat
  184. pylint_main.py
  185. pylintrc
  186. python_runner.sh
  187. rdb
  188. rdb.bat
  189. rdb_wrapper.py
  190. README.gclient.md
  191. README.git-cl.md
  192. README.md
  193. repo
  194. repo_launcher
  195. roll-dep
  196. roll-dep.bat
  197. roll_dep.py
  198. rustfmt.py
  199. scm.py
  200. setup_color.py
  201. split_cl.py
  202. subcommand.py
  203. subprocess2.py
  204. swift-format
  205. swift_format.py
  206. update_depot_tools
  207. update_depot_tools.bat
  208. update_depot_tools_toggle.py
  209. upload_metrics.py
  210. upload_to_google_storage.py
  211. utils.py
  212. vpython
  213. vpython.bat
  214. vpython3
  215. vpython3.bat
  216. WATCHLISTS
  217. watchlists.py
  218. weekly
  219. whitespace.txt
  220. win32imports.py
  221. wtf
  222. yapf
  223. yapf.bat
README.md

depot_tools

Tools for working with Chromium development. It requires python 2.7 or 3.8 for python 3 support.

Tools

The most important tools are:

  • fetch: A gclient wrapper to checkout a project. Use fetch --help for more details.
  • gclient: A meta-checkout tool. Think repo or git submodules, except that it support OS-specific rules, e.g. do not checkout Windows only dependencies when checking out for Android. Use gclient help for more details and README.gclient.md.
  • git cl: A code review tool to interact with Rietveld or Gerrit. Use git cl help for more details and README.git-cl.md.
  • roll-dep: A gclient dependency management tool to submit a dep roll, updating a dependency to a newer revision.

There are a lot of git utilities included.

Updating

depot_tools updates itself automatically when running gclient tool. To disable auto update, set the environment variable DEPOT_TOOLS_UPDATE=0 or run ./update_depot_tools_toggle.py --disable.

To update package manually, run update_depot_tools.bat on Windows, or ./update_depot_tools on Linux or Mac.

On Windows only, running gclient will install git and python.

Contributing

To contribute change for review:

git new-branch <somename>
# Hack
git add .
git commit -a -m "Fixes goat teleporting"
# find reviewers
git cl owners
git log -- <yourfiles>

# Request a review.
git cl upload -r reviewer1@chromium.org,reviewer2@chromium.org --send-mail

# Edit change description if needed.
git cl desc

# If change is approved, flag it to be committed.
git cl set-commit

# If change needs more work.
git rebase-update
...
git cl upload -t "Fixes goat teleporter destination to be Australia"

See also open bugs, open reviews, forum or report problems.

cpplint.py

Until 2018, our cpplint.py was a copy of the upstream version at https://github.com/google/styleguide/tree/gh-pages/cpplint. Unfortunately, that repository is not maintained any more. If you want to update cpplint.py in depot_tools, just upload a patch to do so. We will figure out a long-term strategy via issue https://crbug.com/916550.

Note that the cpplint.py here is also used by the Tricium analyzer, so if the cpplint.py here changes, we should also update the copy used there.