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" <tytso@xxxxxxx>
---
Documentation/config.txt | 6 ++++++
git.c | 10 ++++++++++
2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 4e650af..e6e9409 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 c43d4ff..2f10d50 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,
--
1.5.0.rc4.2.g4249
-
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