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author | Junio C Hamano <gitster@pobox.com> | 2021-09-23 13:44:48 -0700 |
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committer | Junio C Hamano <gitster@pobox.com> | 2021-09-23 13:44:48 -0700 |
commit | 0a4cb1f1f2f64e5f3791809284ba786a8094dfb4 (patch) | |
tree | 17d029ca760431634ca1acd93472065ee63ddeaa /run-command.h | |
parent | Merge branch 'ab/unused-script-helpers' (diff) | |
parent | bisect--helper: retire `--bisect-next-check` subcommand (diff) | |
download | tgif-0a4cb1f1f2f64e5f3791809284ba786a8094dfb4.tar.xz |
Merge branch 'mr/bisect-in-c-4'
Rewrite of "git bisect" in C continues.
* mr/bisect-in-c-4:
bisect--helper: retire `--bisect-next-check` subcommand
bisect--helper: reimplement `bisect_run` shell function in C
bisect--helper: reimplement `bisect_visualize()` shell function in C
run-command: make `exists_in_PATH()` non-static
t6030-bisect-porcelain: add test for bisect visualize
t6030-bisect-porcelain: add tests to control bisect run exit cases
Diffstat (limited to 'run-command.h')
-rw-r--r-- | run-command.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/run-command.h b/run-command.h index ad207daced..b9aff74914 100644 --- a/run-command.h +++ b/run-command.h @@ -191,6 +191,18 @@ void child_process_clear(struct child_process *); int is_executable(const char *name); /** + * Check if the command exists on $PATH. This emulates the path search that + * execvp would perform, without actually executing the command so it + * can be used before fork() to prepare to run a command using + * execve() or after execvp() to diagnose why it failed. + * + * The caller should ensure that command contains no directory separators. + * + * Returns 1 if it is found in $PATH or 0 if the command could not be found. + */ +int exists_in_PATH(const char *command); + +/** * Start a sub-process. Takes a pointer to a `struct child_process` * that specifies the details and returns pipe FDs (if requested). * See below for details. |