[PATCH v4 3/6] run-command: make `exists_in_PATH()` non-static
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STALE1875d
From: Miriam Rubio <hidden>
Date: 2021-08-17 08:16:08
Subsystem:
the rest · Maintainer:
Linus Torvalds
Revision v4 of 6 in this series.
Revisions (6)
From: Pranit Bauva <redacted> Removes the `static` keyword from `exists_in_PATH()` function and declares the function in `run-command.h` file. The function will be used in bisect_visualize() in a later commit. Mentored by: Christian Couder [off-list ref] Mentored by: Johannes Schindelin [off-list ref] Signed-off-by: Tanushree Tumane <redacted> Signed-off-by: Miriam Rubio <redacted> --- run-command.c | 2 +- run-command.h | 12 ++++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/run-command.c b/run-command.c
index f72e72cce7..390f46819f 100644
--- a/run-command.c
+++ b/run-command.c@@ -210,7 +210,7 @@ static char *locate_in_PATH(const char *file) return NULL; } -static int exists_in_PATH(const char *file) +int exists_in_PATH(const char *file) { char *r = locate_in_PATH(file); int found = r != NULL;
diff --git a/run-command.h b/run-command.h
index af1296769f..54d74b706f 100644
--- a/run-command.h
+++ b/run-command.h@@ -182,6 +182,18 @@ void child_process_clear(struct child_process *); int is_executable(const char *name); +/** + * Search if a $PATH for a command exists. 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 file 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 *file); + /** * Start a sub-process. Takes a pointer to a `struct child_process` * that specifies the details and returns pipe FDs (if requested).
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2.29.2