Adding upstream version 1:2.43.0.upstream/1%2.43.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 189 insertions, 0 deletions

diff --git a/hook.c b/hook.c
new file mode 100644
index 0000000..f6306d7
--- /dev/null
+++ b/hook.c
@@ -0,0 +1,189 @@
+#include "git-compat-util.h"
+#include "abspath.h"
+#include "advice.h"
+#include "gettext.h"
+#include "hook.h"
+#include "path.h"
+#include "run-command.h"
+#include "config.h"
+#include "strbuf.h"
+
+const char *find_hook(const char *name)
+{
+	static struct strbuf path = STRBUF_INIT;
+
+	strbuf_reset(&path);
+	strbuf_git_path(&path, "hooks/%s", name);
+	if (access(path.buf, X_OK) < 0) {
+		int err = errno;
+
+#ifdef STRIP_EXTENSION
+		strbuf_addstr(&path, STRIP_EXTENSION);
+		if (access(path.buf, X_OK) >= 0)
+			return path.buf;
+		if (errno == EACCES)
+			err = errno;
+#endif
+
+		if (err == EACCES && advice_enabled(ADVICE_IGNORED_HOOK)) {
+			static struct string_list advise_given = STRING_LIST_INIT_DUP;
+
+			if (!string_list_lookup(&advise_given, name)) {
+				string_list_insert(&advise_given, name);
+				advise(_("The '%s' hook was ignored because "
+					 "it's not set as executable.\n"
+					 "You can disable this warning with "
+					 "`git config advice.ignoredHook false`."),
+				       path.buf);
+			}
+		}
+		return NULL;
+	}
+	return path.buf;
+}
+
+int hook_exists(const char *name)
+{
+	return !!find_hook(name);
+}
+
+static int pick_next_hook(struct child_process *cp,
+			  struct strbuf *out UNUSED,
+			  void *pp_cb,
+			  void **pp_task_cb UNUSED)
+{
+	struct hook_cb_data *hook_cb = pp_cb;
+	const char *hook_path = hook_cb->hook_path;
+
+	if (!hook_path)
+		return 0;
+
+	cp->no_stdin = 1;
+	strvec_pushv(&cp->env, hook_cb->options->env.v);
+	/* reopen the file for stdin; run_command closes it. */
+	if (hook_cb->options->path_to_stdin) {
+		cp->no_stdin = 0;
+		cp->in = xopen(hook_cb->options->path_to_stdin, O_RDONLY);
+	}
+	cp->stdout_to_stderr = 1;
+	cp->trace2_hook_name = hook_cb->hook_name;
+	cp->dir = hook_cb->options->dir;
+
+	strvec_push(&cp->args, hook_path);
+	strvec_pushv(&cp->args, hook_cb->options->args.v);
+
+	/*
+	 * This pick_next_hook() will be called again, we're only
+	 * running one hook, so indicate that no more work will be
+	 * done.
+	 */
+	hook_cb->hook_path = NULL;
+
+	return 1;
+}
+
+static int notify_start_failure(struct strbuf *out UNUSED,
+				void *pp_cb,
+				void *pp_task_cp UNUSED)
+{
+	struct hook_cb_data *hook_cb = pp_cb;
+
+	hook_cb->rc |= 1;
+
+	return 1;
+}
+
+static int notify_hook_finished(int result,
+				struct strbuf *out UNUSED,
+				void *pp_cb,
+				void *pp_task_cb UNUSED)
+{
+	struct hook_cb_data *hook_cb = pp_cb;
+	struct run_hooks_opt *opt = hook_cb->options;
+
+	hook_cb->rc |= result;
+
+	if (opt->invoked_hook)
+		*opt->invoked_hook = 1;
+
+	return 0;
+}
+
+static void run_hooks_opt_clear(struct run_hooks_opt *options)
+{
+	strvec_clear(&options->env);
+	strvec_clear(&options->args);
+}
+
+int run_hooks_opt(const char *hook_name, struct run_hooks_opt *options)
+{
+	struct strbuf abs_path = STRBUF_INIT;
+	struct hook_cb_data cb_data = {
+		.rc = 0,
+		.hook_name = hook_name,
+		.options = options,
+	};
+	const char *const hook_path = find_hook(hook_name);
+	int ret = 0;
+	const struct run_process_parallel_opts opts = {
+		.tr2_category = "hook",
+		.tr2_label = hook_name,
+
+		.processes = 1,
+		.ungroup = 1,
+
+		.get_next_task = pick_next_hook,
+		.start_failure = notify_start_failure,
+		.task_finished = notify_hook_finished,
+
+		.data = &cb_data,
+	};
+
+	if (!options)
+		BUG("a struct run_hooks_opt must be provided to run_hooks");
+
+	if (options->invoked_hook)
+		*options->invoked_hook = 0;
+
+	if (!hook_path && !options->error_if_missing)
+		goto cleanup;
+
+	if (!hook_path) {
+		ret = error("cannot find a hook named %s", hook_name);
+		goto cleanup;
+	}
+
+	cb_data.hook_path = hook_path;
+	if (options->dir) {
+		strbuf_add_absolute_path(&abs_path, hook_path);
+		cb_data.hook_path = abs_path.buf;
+	}
+
+	run_processes_parallel(&opts);
+	ret = cb_data.rc;
+cleanup:
+	strbuf_release(&abs_path);
+	run_hooks_opt_clear(options);
+	return ret;
+}
+
+int run_hooks(const char *hook_name)
+{
+	struct run_hooks_opt opt = RUN_HOOKS_OPT_INIT;
+
+	return run_hooks_opt(hook_name, &opt);
+}
+
+int run_hooks_l(const char *hook_name, ...)
+{
+	struct run_hooks_opt opt = RUN_HOOKS_OPT_INIT;
+	va_list ap;
+	const char *arg;
+
+	va_start(ap, hook_name);
+	while ((arg = va_arg(ap, const char *)))
+		strvec_push(&opt.args, arg);
+	va_end(ap);
+
+	return run_hooks_opt(hook_name, &opt);
+}