const char git_usage_string[] =
"git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate|--no-pager] [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE] [--help] COMMAND [ARGS]";
+const char git_more_info_string[] =
+ "See 'git help COMMAND' for more information on a specific command.";
+
+static int use_pager = -1;
+struct pager_config {
+ const char *cmd;
+ int val;
+};
+
+static int pager_command_config(const char *var, const char *value, void *data)
+{
+ struct pager_config *c = data;
+ if (!prefixcmp(var, "pager.") && !strcmp(var + 6, c->cmd))
+ c->val = git_config_bool(var, value);
+ return 0;
+}
+
+/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
+int check_pager_config(const char *cmd)
+{
+ struct pager_config c;
+ c.cmd = cmd;
+ c.val = -1;
+ git_config(pager_command_config, &c);
+ return c.val;
+}
+
+static void commit_pager_choice(void) {
+ switch (use_pager) {
+ case 0:
+ setenv("GIT_PAGER", "cat", 1);
+ break;
+ case 1:
+ setup_pager();
+ break;
+ default:
+ break;
+ }
+}
+
static int handle_options(const char*** argv, int* argc, int* envchanged)
{
int handled = 0;
exit(0);
}
} else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
- setup_pager();
+ use_pager = 1;
} else if (!strcmp(cmd, "--no-pager")) {
- setenv("GIT_PAGER", "cat", 1);
+ use_pager = 0;
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--git-dir")) {
prefix = NULL;
if (p->option & RUN_SETUP)
prefix = setup_git_directory();
- if (p->option & USE_PAGER)
- setup_pager();
+
+ if (use_pager == -1 && p->option & RUN_SETUP)
+ use_pager = check_pager_config(p->cmd);
+ if (use_pager == -1 && p->option & USE_PAGER)
+ use_pager = 1;
+ commit_pager_choice();
+
if (p->option & NEED_WORK_TREE)
setup_work_tree();
{ "checkout-index", cmd_checkout_index,
RUN_SETUP | NEED_WORK_TREE},
{ "check-ref-format", cmd_check_ref_format },
- { "check-attr", cmd_check_attr, RUN_SETUP | NEED_WORK_TREE },
+ { "check-attr", cmd_check_attr, RUN_SETUP },
{ "cherry", cmd_cherry, RUN_SETUP },
{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
+ { "clone", cmd_clone },
{ "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
{ "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
{ "commit-tree", cmd_commit_tree, RUN_SETUP },
{ "count-objects", cmd_count_objects, RUN_SETUP },
{ "describe", cmd_describe, RUN_SETUP },
{ "diff", cmd_diff },
- { "diff-files", cmd_diff_files },
+ { "diff-files", cmd_diff_files, RUN_SETUP },
{ "diff-index", cmd_diff_index, RUN_SETUP },
{ "diff-tree", cmd_diff_tree, RUN_SETUP },
{ "fast-export", cmd_fast_export, RUN_SETUP },
{ "pack-refs", cmd_pack_refs, RUN_SETUP },
};
int i;
+ static const char ext[] = STRIP_EXTENSION;
+
+ if (sizeof(ext) > 1) {
+ i = strlen(argv[0]) - strlen(ext);
+ if (i > 0 && !strcmp(argv[0] + i, ext)) {
+ char *argv0 = strdup(argv[0]);
+ argv[0] = cmd = argv0;
+ argv0[i] = '\0';
+ }
+ }
/* Turn "git cmd --help" into "git help cmd" */
if (argc > 1 && !strcmp(argv[1], "--help")) {
}
}
+static void execv_dashed_external(const char **argv)
+{
+ struct strbuf cmd;
+ const char *tmp;
+
+ strbuf_init(&cmd, 0);
+ strbuf_addf(&cmd, "git-%s", argv[0]);
+
+ /*
+ * argv[0] must be the git command, but the argv array
+ * belongs to the caller, and may be reused in
+ * subsequent loop iterations. Save argv[0] and
+ * restore it on error.
+ */
+ tmp = argv[0];
+ argv[0] = cmd.buf;
+
+ trace_argv_printf(argv, "trace: exec:");
+
+ /* execvp() can only ever return if it fails */
+ execvp(cmd.buf, (char **)argv);
+
+ trace_printf("trace: exec failed: %s\n", strerror(errno));
+
+ argv[0] = tmp;
+
+ strbuf_release(&cmd);
+}
+
+
int main(int argc, const char **argv)
{
- const char *cmd = argv[0] ? argv[0] : "git-help";
- char *slash = strrchr(cmd, '/');
+ const char *cmd = argv[0] && *argv[0] ? argv[0] : "git-help";
+ char *slash = (char *)cmd + strlen(cmd);
const char *cmd_path = NULL;
int done_alias = 0;
* name, and the dirname as the default exec_path
* if we don't have anything better.
*/
- if (slash) {
+ do
+ --slash;
+ while (cmd <= slash && !is_dir_sep(*slash));
+ if (cmd <= slash) {
*slash++ = 0;
cmd_path = cmd;
cmd = slash;
argv++;
argc--;
handle_options(&argv, &argc, NULL);
+ commit_pager_choice();
if (argc > 0) {
if (!prefixcmp(argv[0], "--"))
argv[0] += 2;
/* The user didn't specify a command; give them help */
printf("usage: %s\n\n", git_usage_string);
list_common_cmds_help();
+ printf("\n%s\n", git_more_info_string);
exit(1);
}
cmd = argv[0];
handle_internal_command(argc, argv);
/* .. then try the external ones */
- execv_git_cmd(argv);
+ execv_dashed_external(argv);
/* It could be an alias -- this works around the insanity
* of overriding "git log" with "git show" by having