From 92fe7c7d42cc941ed70d6fce988d6b7936a9765a Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Sat, 13 Jul 2024 21:08:22 +0000 Subject: [PATCH] run-command(win32): resolve the path to the Unix shell early In 776297548e (Do not use SHELL_PATH from build system in prepare_shell_cmd on Windows, 2012-04-17), the hard-coded path to the Unix shell was replaced by passing `sh` instead when executing Unix shell scripts in Git. This was done because the hard-coded path to the Unix shell is incorrect on Windows because it not only is a Unix-style absolute path instead of a Windows one, but Git uses the runtime prefix feature on Windows, i.e. the correct path cannot be hard-coded. Naturally, the `sh` argument will be resolved to the full path of said executable eventually. To help fixing the bug where `git var GIT_SHELL_PATH` currently does not reflect that logic, but shows that incorrect hard-coded Unix-style absolute path, let's resolve the full path to the `sh` executable early in the `git_shell_path()` function so that we can use it in `git var`, too, and be sure that the output is equivalent to what `run_command()` does when it is asked to execute a command-line using a Unix shell. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- run-command.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/run-command.c b/run-command.c index 59e433bf91..60a79db8f0 100644 --- a/run-command.c +++ b/run-command.c @@ -274,12 +274,14 @@ int sane_execvp(const char *file, char * const argv[]) return -1; } -static const char *git_shell_path(void) +static char *git_shell_path(void) { #ifndef GIT_WINDOWS_NATIVE - return SHELL_PATH; + return xstrdup(SHELL_PATH); #else - return "sh"; + char *p = locate_in_PATH("sh"); + convert_slashes(p); + return p; #endif } @@ -289,7 +291,7 @@ static const char **prepare_shell_cmd(struct strvec *out, const char **argv) BUG("shell command is empty"); if (strcspn(argv[0], "|&;<>()$`\\\"' \t\n*?[#~=%") != strlen(argv[0])) { - strvec_push(out, git_shell_path()); + strvec_push_nodup(out, git_shell_path()); strvec_push(out, "-c"); /*