From d845b6641474f1f3169151e0526d08b77cff1985 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Thu, 11 Jul 2024 13:48:20 +0200 Subject: [PATCH] var(win32): do report the GIT_SHELL_PATH that is actually used On Windows, Unix-like paths like `/bin/sh` make very little sense. In the best case, they simply don't work, in the worst case they are misinterpreted as absolute paths that are relative to the drive associated with the current directory. To that end, Git does not actually use the path `/bin/sh` that is recorded e.g. when `run_command()` is called with a Unix shell command-line. Instead, as of 776297548e (Do not use SHELL_PATH from build system in prepare_shell_cmd on Windows, 2012-04-17), it re-interprets `/bin/sh` as "look up `sh` on the `PATH` and use the result instead". This is the logic users expect to be followed when running `git var GIT_SHELL_PATH`. However, when 1e65721227 (var: add support for listing the shell, 2023-06-27) introduced support for `git var GIT_SHELL_PATH`, Windows was not special-cased as above, which is why it outputs `/bin/sh` even though that disagrees with what Git actually uses. Let's fix this by using the exact same logic as `prepare_shell_cmd()`, adjusting the Windows-specific `git var GIT_SHELL_PATH` test case to verify that it actually finds a working executable. Reported-by: Phillip Wood Signed-off-by: Johannes Schindelin --- builtin/var.c | 3 ++- t/t0007-git-var.sh | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/builtin/var.c b/builtin/var.c index 5dc384810c0969..e30ff45be1ce73 100644 --- a/builtin/var.c +++ b/builtin/var.c @@ -12,6 +12,7 @@ #include "refs.h" #include "path.h" #include "strbuf.h" +#include "run-command.h" static const char var_usage[] = "git var (-l | )"; @@ -51,7 +52,7 @@ static char *default_branch(int ident_flag UNUSED) static char *shell_path(int ident_flag UNUSED) { - return xstrdup(SHELL_PATH); + return git_shell_path(); } static char *git_attr_val_system(int ident_flag UNUSED) diff --git a/t/t0007-git-var.sh b/t/t0007-git-var.sh index ff4fd9348cca64..9fc5882387390a 100755 --- a/t/t0007-git-var.sh +++ b/t/t0007-git-var.sh @@ -157,7 +157,7 @@ test_expect_success POSIXPERM 'GIT_SHELL_PATH points to a valid executable' ' test_expect_success MINGW 'GIT_SHELL_PATH points to a suitable shell' ' shellpath=$(git var GIT_SHELL_PATH) && case "$shellpath" in - *sh) ;; + [A-Z]:/*/sh.exe) test -f "$shellpath";; *) return 1;; esac '