From dfd42a3c6281275b518f10938dcd858558cd82e3 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 10 Feb 2007 19:33:58 -0500 Subject: [PATCH] Allow aliases to expand to shell commands If the alias expansion is prefixed with an exclamation point, treat it as a shell command which is run using system(3). Signed-off-by: "Theodore Ts'o" Signed-off-by: Junio C Hamano --- Documentation/config.txt | 6 ++++++ git.c | 10 ++++++++++ 2 files changed, 16 insertions(+) diff --git a/Documentation/config.txt b/Documentation/config.txt index 4e650af01a..0129b1fd69 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -222,6 +222,12 @@ alias.*:: spaces, the usual shell quoting and escaping is supported. quote pair and a backslash can be used to quote them. + If the alias expansion is prefixed with an exclamation point, + it will be treated as a shell command. For example, defining + "alias.new = !gitk --all --not ORIG_HEAD", the invocation + "git new" is equivalent to running the shell command + "gitk --all --not ORIG_HEAD". + apply.whitespace:: Tells `git-apply` how to handle whitespaces, in the same way as the '--whitespace' option. See gitlink:git-apply[1]. diff --git a/git.c b/git.c index c43d4ff1fd..45265f14d0 100644 --- a/git.c +++ b/git.c @@ -159,6 +159,16 @@ static int handle_alias(int *argcp, const char ***argv) alias_command = (*argv)[0]; git_config(git_alias_config); if (alias_string) { + if (alias_string[0] == '!') { + trace_printf("trace: alias to shell cmd: %s => %s\n", + alias_command, alias_string + 1); + ret = system(alias_string + 1); + if (ret >= 0 && WIFEXITED(ret) && + WEXITSTATUS(ret) != 127) + exit(WEXITSTATUS(ret)); + die("Failed to run '%s' when expanding alias '%s'\n", + alias_string + 1, alias_command); + } count = split_cmdline(alias_string, &new_argv); option_count = handle_options(&new_argv, &count); memmove(new_argv - option_count, new_argv,