From: Pranit Bauva <pranit.bauva@xxxxxxxxx>
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@xxxxxxxxxxxxx>
Mentored by: Johannes Schindelin <Johannes.Schindelin@xxxxxx>
Signed-off-by: Tanushree Tumane <tanushreetumane@xxxxxxxxx>
Signed-off-by: Miriam Rubio <mirucam@xxxxxxxxx>
---
run-command.c | 4 ++--
run-command.h | 12 ++++++++++++
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/run-command.c b/run-command.c
index f72e72cce7..da02553f44 100644
--- a/run-command.c
+++ b/run-command.c
@@ -210,9 +210,9 @@ static char *locate_in_PATH(const char *file)
return NULL;
}
-static int exists_in_PATH(const char *file)
+int exists_in_PATH(const char *command)
{
- char *r = locate_in_PATH(file);
+ char *r = locate_in_PATH(command);
int found = r != NULL;
free(r);
return found;
diff --git a/run-command.h b/run-command.h
index af1296769f..aad027984d 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);
+/**
+ * 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).
--
2.29.2
