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[PATCH v2 09/13] git-p4: use 'git hook' to run hooks

From
Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date
Oct 15, 2021, 09:43 UTC
Message-ID
<patch-v2-09.13-b1f52733e3c-20211015T093918Z-avarab@gmail.com>
In-Reply-To
<cover-v2-00.13-00000000000-20211015T093918Z-avarab@gmail.com>
From: Emily Shaffer <emilyshaffer@google.com>

Instead of duplicating the behavior of run-command.h:run_hook_le() in Python, we can directly call 'git hook run'. We emulate the existence check with the --ignore-missing flag.

As this is the last hook execution in git.git to not go through "git hook run" or the hook.[ch] library we can now be absolutely sure that our assertion in hook.c that only hooks known by the generated (from githooks(5)) hook-list.h are permitted.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 git-p4.py | 72 ++++++-------------------------------------------------
 1 file changed, 7 insertions(+), 65 deletions(-)
diff --git a/git-p4.py b/git-p4.py
index 2b4500226aa..1f24cbf0bca 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -207,71 +207,13 @@ def decode_path(path):
         return path
 
 def run_git_hook(cmd, param=[]):
-    """Execute a hook if the hook exists."""
-    if verbose:
-        sys.stderr.write("Looking for hook: %s\n" % cmd)
-        sys.stderr.flush()
-
-    hooks_path = gitConfig("core.hooksPath")
-    if len(hooks_path) <= 0:
-        hooks_path = os.path.join(os.environ["GIT_DIR"], "hooks")
-
-    if not isinstance(param, list):
-        param=[param]
-
-    # resolve hook file name, OS depdenent
-    hook_file = os.path.join(hooks_path, cmd)
-    if platform.system() == 'Windows':
-        if not os.path.isfile(hook_file):
-            # look for the file with an extension
-            files = glob.glob(hook_file + ".*")
-            if not files:
-                return True
-            files.sort()
-            hook_file = files.pop()
-            while hook_file.upper().endswith(".SAMPLE"):
-                # The file is a sample hook. We don't want it
-                if len(files) > 0:
-                    hook_file = files.pop()
-                else:
-                    return True
-
-    if not os.path.isfile(hook_file) or not os.access(hook_file, os.X_OK):
-        return True
-
-    return run_hook_command(hook_file, param) == 0
-
-def run_hook_command(cmd, param):
-    """Executes a git hook command
-       cmd = the command line file to be executed. This can be
-       a file that is run by OS association.
-
-       param = a list of parameters to pass to the cmd command
-
-       On windows, the extension is checked to see if it should
-       be run with the Git for Windows Bash shell.  If there
-       is no file extension, the file is deemed a bash shell
-       and will be handed off to sh.exe. Otherwise, Windows
-       will be called with the shell to handle the file assocation.
-
-       For non Windows operating systems, the file is called
-       as an executable.
-    """
-    cli = [cmd] + param
-    use_shell = False
-    if platform.system() == 'Windows':
-        (root,ext) = os.path.splitext(cmd)
-        if ext == "":
-            exe_path = os.environ.get("EXEPATH")
-            if exe_path is None:
-                exe_path = ""
-            else:
-                exe_path = os.path.join(exe_path, "bin")
-            cli = [os.path.join(exe_path, "SH.EXE")] + cli
-        else:
-            use_shell = True
-    return subprocess.call(cli, shell=use_shell)
-
+    """args are specified with -a <arg> -a <arg> -a <arg>"""
+    args = ['git', 'hook', 'run', '--ignore-missing', cmd]
+    if param:
+        args.append("--")
+        for p in param:
+            args.append(p)
+    return subprocess.call(args) == 0
 
 def write_pipe(c, stdin):
     if verbose:
-- 
2.33.1.1338.g20da966911a
Previous: Emily ShafferNext: Emily Shaffer
Message 20 of 115 in “hook.[ch]: new library to run hooks + simple hook conversion”
  1. 00/13 hook.[ch]: new library to run hooks + simple hook conversionÆvar Arnfjörð Bjarmason, Oct 15, 2021
  2. 01/13 hook: add 'run' subcommandÆvar Arnfjörð Bjarmason, Oct 15, 2021
  3. Emily ShafferOct 15, 2021
  4. Eric SunshineOct 15, 2021
  5. Ævar Arnfjörð BjarmasonOct 19, 2021
  6. 02/13 gc: use hook library for pre-auto-gc hookÆvar Arnfjörð Bjarmason, Oct 15, 2021
  7. Emily ShafferOct 15, 2021
  8. 04/13 am: convert applypatch to use hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  9. Emily ShafferOct 15, 2021
  10. 05/13 hooks: convert 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Oct 15, 2021
  11. Emily ShafferOct 15, 2021
  12. 03/13 rebase: convert pre-rebase to use hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  13. Emily ShafferOct 15, 2021
  14. 06/13 merge: convert post-merge to use hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  15. Emily ShafferOct 15, 2021
  16. 07/13 git hook run: add an --ignore-missing flagÆvar Arnfjörð Bjarmason, Oct 15, 2021
  17. Emily ShafferOct 15, 2021
  18. 08/13 send-email: use 'git hook run' for 'sendemail-validate'Ævar Arnfjörð Bjarmason, Oct 15, 2021
  19. Emily ShafferOct 15, 2021
  20. 09/13 git-p4: use 'git hook' to run hooksÆvar Arnfjörð Bjarmason, Oct 15, 2021
  21. Emily ShafferOct 15, 2021
  22. 10/13 commit: convert {pre-commit,prepare-commit-msg} hook to hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  23. Emily ShafferOct 15, 2021
  24. 11/13 read-cache: convert post-index-change to use hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  25. Emily ShafferOct 15, 2021
  26. 12/13 receive-pack: convert push-to-checkout hook to hook.hÆvar Arnfjörð Bjarmason, Oct 15, 2021
  27. 13/13 run-command: remove old run_hook_{le,ve}() hook APIÆvar Arnfjörð Bjarmason, Oct 15, 2021
  28. Emily ShafferOct 15, 2021
  29. Emily ShafferOct 15, 2021
  30. Junio C HamanoOct 16, 2021
  31. Eric SunshineOct 16, 2021
  32. Ævar Arnfjörð BjarmasonOct 16, 2021
  33. Junio C HamanoOct 16, 2021
  34. Ævar Arnfjörð BjarmasonOct 16, 2021
  35. 00/13 hook.[ch]: new library to run hooks + simple hook conversionÆvar Arnfjörð Bjarmason, Oct 19, 2021
  36. 01/13 hook: add 'run' subcommandÆvar Arnfjörð Bjarmason, Oct 19, 2021
  37. 02/13 gc: use hook library for pre-auto-gc hookÆvar Arnfjörð Bjarmason, Oct 19, 2021
  38. 03/13 rebase: convert pre-rebase to use hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  39. Junio C HamanoOct 29, 2021
  40. 04/13 am: convert applypatch to use hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  41. 05/13 hooks: convert 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Oct 19, 2021
  42. Junio C HamanoOct 29, 2021
  43. 06/13 merge: convert post-merge to use hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  44. 07/13 git hook run: add an --ignore-missing flagÆvar Arnfjörð Bjarmason, Oct 19, 2021
  45. Junio C HamanoOct 29, 2021
  46. 08/13 send-email: use 'git hook run' for 'sendemail-validate'Ævar Arnfjörð Bjarmason, Oct 19, 2021
  47. 09/13 git-p4: use 'git hook' to run hooksÆvar Arnfjörð Bjarmason, Oct 19, 2021
  48. 10/13 commit: convert {pre-commit,prepare-commit-msg} hook to hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  49. 11/13 read-cache: convert post-index-change to use hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  50. 12/13 receive-pack: convert push-to-checkout hook to hook.hÆvar Arnfjörð Bjarmason, Oct 19, 2021
  51. 13/13 run-command: remove old run_hook_{le,ve}() hook APIÆvar Arnfjörð Bjarmason, Oct 19, 2021
  52. Junio C HamanoOct 29, 2021
  53. 00/17 hook.[ch]: new library to run hooks + simple hook conversionÆvar Arnfjörð Bjarmason, Nov 1, 2021
  54. 02/17 hook API: add a run_hooks() wrapperÆvar Arnfjörð Bjarmason, Nov 1, 2021
  55. 09/17 hooks: convert non-worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Nov 1, 2021
  56. 01/17 hook: add 'run' subcommandÆvar Arnfjörð Bjarmason, Nov 1, 2021
  57. 05/17 hook API: add a run_hooks_l() wrapperÆvar Arnfjörð Bjarmason, Nov 1, 2021
  58. 04/17 am: convert {pre,post}-applypatch to use hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  59. 03/17 gc: use hook library for pre-auto-gc hookÆvar Arnfjörð Bjarmason, Nov 1, 2021
  60. 07/17 am: convert applypatch-msg to use hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  61. 06/17 rebase: convert pre-rebase to use hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  62. 10/17 hooks: convert worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Nov 1, 2021
  63. 08/17 merge: convert post-merge to use hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  64. 14/17 commit: convert {pre-commit,prepare-commit-msg} hook to hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  65. 17/17 run-command: remove old run_hook_{le,ve}() hook APIÆvar Arnfjörð Bjarmason, Nov 1, 2021
  66. 13/17 git-p4: use 'git hook' to run hooksÆvar Arnfjörð Bjarmason, Nov 1, 2021
  67. 15/17 read-cache: convert post-index-change to use hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  68. 16/17 receive-pack: convert push-to-checkout hook to hook.hÆvar Arnfjörð Bjarmason, Nov 1, 2021
  69. 12/17 send-email: use 'git hook run' for 'sendemail-validate'Ævar Arnfjörð Bjarmason, Nov 1, 2021
  70. 11/17 git hook run: add an --ignore-missing flagÆvar Arnfjörð Bjarmason, Nov 1, 2021
  71. 00/17 hook.[ch]: new library to run hooks + simple hook conversionÆvar Arnfjörð Bjarmason, Nov 23, 2021
  72. 01/17 hook: add 'run' subcommandÆvar Arnfjörð Bjarmason, Nov 23, 2021
  73. 02/17 hook API: add a run_hooks() wrapperÆvar Arnfjörð Bjarmason, Nov 23, 2021
  74. 03/17 gc: use hook library for pre-auto-gc hookÆvar Arnfjörð Bjarmason, Nov 23, 2021
  75. 06/17 rebase: convert pre-rebase to use hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  76. 04/17 am: convert {pre,post}-applypatch to use hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  77. 05/17 hook API: add a run_hooks_l() wrapperÆvar Arnfjörð Bjarmason, Nov 23, 2021
  78. 08/17 merge: convert post-merge to use hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  79. 07/17 am: convert applypatch-msg to use hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  80. 10/17 hooks: convert worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Nov 23, 2021
  81. 14/17 commit: convert {pre-commit,prepare-commit-msg} hook to hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  82. 13/17 git-p4: use 'git hook' to run hooksÆvar Arnfjörð Bjarmason, Nov 23, 2021
  83. 15/17 read-cache: convert post-index-change to use hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  84. 16/17 receive-pack: convert push-to-checkout hook to hook.hÆvar Arnfjörð Bjarmason, Nov 23, 2021
  85. 17/17 run-command: remove old run_hook_{le,ve}() hook APIÆvar Arnfjörð Bjarmason, Nov 23, 2021
  86. 12/17 send-email: use 'git hook run' for 'sendemail-validate'Ævar Arnfjörð Bjarmason, Nov 23, 2021
  87. 11/17 git hook run: add an --ignore-missing flagÆvar Arnfjörð Bjarmason, Nov 23, 2021
  88. 09/17 hooks: convert non-worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Nov 23, 2021
  89. 00/17 hook.[ch]: new library to run hooks + simple hook conversionÆvar Arnfjörð Bjarmason, Dec 22, 2021
  90. 01/17 hook: add 'run' subcommandÆvar Arnfjörð Bjarmason, Dec 22, 2021
  91. Emily ShafferJan 7, 2022
  92. Junio C HamanoJan 7, 2022
  93. 03/17 gc: use hook library for pre-auto-gc hookÆvar Arnfjörð Bjarmason, Dec 22, 2021
  94. 04/17 am: convert {pre,post}-applypatch to use hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  95. 06/17 rebase: convert pre-rebase to use hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  96. 05/17 hook API: add a run_hooks_l() wrapperÆvar Arnfjörð Bjarmason, Dec 22, 2021
  97. Glen ChooJan 6, 2022
  98. Emily ShafferJan 7, 2022
  99. 02/17 hook API: add a run_hooks() wrapperÆvar Arnfjörð Bjarmason, Dec 22, 2021
  100. Glen ChooJan 6, 2022
  101. 07/17 am: convert applypatch-msg to use hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  102. 10/17 hooks: convert worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Dec 22, 2021
  103. 09/17 hooks: convert non-worktree 'post-checkout' hook to hook libraryÆvar Arnfjörð Bjarmason, Dec 22, 2021
  104. 08/17 merge: convert post-merge to use hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  105. 11/17 git hook run: add an --ignore-missing flagÆvar Arnfjörð Bjarmason, Dec 22, 2021
  106. Glen ChooJan 6, 2022
  107. 12/17 send-email: use 'git hook run' for 'sendemail-validate'Ævar Arnfjörð Bjarmason, Dec 22, 2021
  108. 13/17 git-p4: use 'git hook' to run hooksÆvar Arnfjörð Bjarmason, Dec 22, 2021
  109. 14/17 commit: convert {pre-commit,prepare-commit-msg} hook to hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  110. 15/17 read-cache: convert post-index-change to use hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  111. 16/17 receive-pack: convert push-to-checkout hook to hook.hÆvar Arnfjörð Bjarmason, Dec 22, 2021
  112. 17/17 run-command: remove old run_hook_{le,ve}() hook APIÆvar Arnfjörð Bjarmason, Dec 22, 2021
  113. Glen ChooJan 6, 2022
  114. Emily ShafferJan 7, 2022
  115. Emily ShafferJan 7, 2022

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