run-command: make `exists_in_PATH()` non-static
Remove the `static` keyword from `exists_in_PATH()` function and declare the function in `run-command.h` file. The function will be used in bisect_visualize() in a later commit. Mentored by: Christian Couder <chriscool@tuxfamily.org> Mentored by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pranit Bauva committed
Sep 13, 2021 at 19:39 UTC
3f36e6f30c5ee8d337dffa65c487080b87b29030
2 files changed
+14
-2
run-command.c
+2
-2
@@ -210,9 +210,9 @@ static char *locate_in_PATH(const char *file)
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return NULL;
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}
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-static int exists_in_PATH(const char *file)
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+int exists_in_PATH(const char *command)
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{
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- char *r = locate_in_PATH(file);
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+ char *r = locate_in_PATH(command);
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int found = r != NULL;
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free(r);
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return found;
run-command.h
+12
@@ -182,6 +182,18 @@ void child_process_clear(struct child_process *);
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int is_executable(const char *name);
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+/**
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+ * Check if the command exists on $PATH. This emulates the path search that
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+ * execvp would perform, without actually executing the command so it
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+ * can be used before fork() to prepare to run a command using
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+ * execve() or after execvp() to diagnose why it failed.
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+ *
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+ * The caller should ensure that command contains no directory separators.
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+ *
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+ * Returns 1 if it is found in $PATH or 0 if the command could not be found.
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+ */
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+int exists_in_PATH(const char *command);
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+
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/**
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* Start a sub-process. Takes a pointer to a `struct child_process`
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* that specifies the details and returns pipe FDs (if requested).