#include "exec_cmd.h"
#include "cache.h"
#include "quote.h"
+#include "run-command.h"
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")) {
return handled;
}
-static int split_cmdline(char *cmdline, const char ***argv)
-{
- int src, dst, count = 0, size = 16;
- char quoted = 0;
-
- *argv = xmalloc(sizeof(char*) * size);
-
- /* split alias_string */
- (*argv)[count++] = cmdline;
- for (src = dst = 0; cmdline[src];) {
- char c = cmdline[src];
- if (!quoted && isspace(c)) {
- cmdline[dst++] = 0;
- while (cmdline[++src]
- && isspace(cmdline[src]))
- ; /* skip */
- if (count >= size) {
- size += 16;
- *argv = xrealloc(*argv, sizeof(char*) * size);
- }
- (*argv)[count++] = cmdline + dst;
- } else if(!quoted && (c == '\'' || c == '"')) {
- quoted = c;
- src++;
- } else if (c == quoted) {
- quoted = 0;
- src++;
- } else {
- if (c == '\\' && quoted != '\'') {
- src++;
- c = cmdline[src];
- if (!c) {
- free(*argv);
- *argv = NULL;
- return error("cmdline ends with \\");
- }
- }
- cmdline[dst++] = c;
- src++;
- }
- }
-
- cmdline[dst] = 0;
-
- if (quoted) {
- free(*argv);
- *argv = NULL;
- return error("unclosed quote");
- }
-
- return count;
-}
-
static int handle_alias(int *argcp, const char ***argv)
{
int envchanged = 0, ret = 0, saved_errno = errno;
if (ret >= 0 && WIFEXITED(ret) &&
WEXITSTATUS(ret) != 127)
exit(WEXITSTATUS(ret));
- die("Failed to run '%s' when expanding alias '%s'\n",
+ die("Failed to run '%s' when expanding alias '%s'",
alias_string + 1, alias_command);
}
count = split_cmdline(alias_string, &new_argv);
+ if (count < 0)
+ die("Bad alias.%s string", alias_command);
option_count = handle_options(&new_argv, &count, &envchanged);
if (envchanged)
die("alias '%s' changes environment variables\n"
ret = 1;
}
- if (subdir)
- chdir(subdir);
+ if (subdir && chdir(subdir))
+ die("Cannot change to %s: %s", subdir, strerror(errno));
errno = saved_errno;
int option;
};
-static int run_command(struct cmd_struct *p, int argc, const char **argv)
+static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
{
int status;
struct stat st;
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();
const char *cmd = argv[0];
static struct cmd_struct commands[] = {
{ "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
+ { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
{ "annotate", cmd_annotate, RUN_SETUP },
{ "apply", cmd_apply },
{ "archive", cmd_archive },
{ "count-objects", cmd_count_objects, RUN_SETUP },
{ "describe", cmd_describe, RUN_SETUP },
{ "diff", cmd_diff },
- { "diff-files", cmd_diff_files, RUN_SETUP },
+ { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE },
{ "diff-index", cmd_diff_index, RUN_SETUP },
{ "diff-tree", cmd_diff_tree, RUN_SETUP },
{ "fast-export", cmd_fast_export, RUN_SETUP },
{ "ls-remote", cmd_ls_remote },
{ "mailinfo", cmd_mailinfo },
{ "mailsplit", cmd_mailsplit },
+ { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE },
{ "merge-base", cmd_merge_base, RUN_SETUP },
{ "merge-file", cmd_merge_file },
{ "merge-ours", cmd_merge_ours, RUN_SETUP },
{ "prune-packed", cmd_prune_packed, RUN_SETUP },
{ "push", cmd_push, RUN_SETUP },
{ "read-tree", cmd_read_tree, RUN_SETUP },
+ { "receive-pack", cmd_receive_pack },
{ "reflog", cmd_reflog, RUN_SETUP },
{ "remote", cmd_remote, RUN_SETUP },
{ "repo-config", cmd_config },
{ "shortlog", cmd_shortlog, USE_PAGER },
{ "show-branch", cmd_show_branch, RUN_SETUP },
{ "show", cmd_show, RUN_SETUP | USE_PAGER },
- { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE | USE_PAGER },
+ { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
{ "stripspace", cmd_stripspace },
{ "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
{ "tag", cmd_tag, 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 = xstrdup(argv[0]);
+ argv[0] = cmd = argv0;
+ argv0[i] = '\0';
+ }
+ }
/* Turn "git cmd --help" into "git help cmd" */
if (argc > 1 && !strcmp(argv[1], "--help")) {
struct cmd_struct *p = commands+i;
if (strcmp(p->cmd, cmd))
continue;
- exit(run_command(p, argc, argv));
+ exit(run_builtin(p, argc, argv));
}
}
-int main(int argc, const char **argv)
+static void execv_dashed_external(const char **argv)
{
- const char *cmd = argv[0] ? argv[0] : "git-help";
- char *slash = strrchr(cmd, '/');
- const char *cmd_path = NULL;
- int done_alias = 0;
+ struct strbuf cmd = STRBUF_INIT;
+ const char *tmp;
+ int status;
+
+ strbuf_addf(&cmd, "git-%s", argv[0]);
/*
- * Take the basename of argv[0] as the command
- * name, and the dirname as the default exec_path
- * if we don't have anything better.
+ * 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.
*/
- if (slash) {
- *slash++ = 0;
- cmd_path = cmd;
- cmd = slash;
+ tmp = argv[0];
+ argv[0] = cmd.buf;
+
+ trace_argv_printf(argv, "trace: exec:");
+
+ /*
+ * if we fail because the command is not found, it is
+ * OK to return. Otherwise, we just pass along the status code.
+ */
+ status = run_command_v_opt(argv, 0);
+ if (status != -ERR_RUN_COMMAND_EXEC) {
+ if (IS_RUN_COMMAND_ERR(status))
+ die("unable to run '%s'", argv[0]);
+ exit(-status);
}
+ errno = ENOENT; /* as if we called execvp */
+
+ argv[0] = tmp;
+
+ strbuf_release(&cmd);
+}
+
+static int run_argv(int *argcp, const char ***argv)
+{
+ int done_alias = 0;
+
+ while (1) {
+ /* See if it's an internal command */
+ handle_internal_command(*argcp, *argv);
+
+ /* .. then try the external ones */
+ execv_dashed_external(*argv);
+
+ /* It could be an alias -- this works around the insanity
+ * of overriding "git log" with "git show" by having
+ * alias.log = show
+ */
+ if (done_alias || !handle_alias(argcp, argv))
+ break;
+ done_alias = 1;
+ }
+
+ return done_alias;
+}
+
+
+int main(int argc, const char **argv)
+{
+ const char *cmd;
+
+ cmd = git_extract_argv0_path(argv[0]);
+ if (!cmd)
+ cmd = "git-help";
/*
* "git-xxxx" is the same as "git xxxx", but we obviously:
argv++;
argc--;
handle_options(&argv, &argc, NULL);
+ commit_pager_choice();
if (argc > 0) {
if (!prefixcmp(argv[0], "--"))
argv[0] += 2;
* environment, and the $(gitexecdir) from the Makefile at build
* time.
*/
- setup_path(cmd_path);
+ setup_path();
while (1) {
- /* See if it's an internal command */
- handle_internal_command(argc, argv);
-
- /* .. then try the external ones */
- execv_git_cmd(argv);
-
- /* It could be an alias -- this works around the insanity
- * of overriding "git log" with "git show" by having
- * alias.log = show
- */
- if (done_alias || !handle_alias(&argc, &argv))
+ static int done_help = 0;
+ static int was_alias = 0;
+ was_alias = run_argv(&argc, &argv);
+ if (errno != ENOENT)
break;
- done_alias = 1;
- }
-
- if (errno == ENOENT) {
- if (done_alias) {
+ if (was_alias) {
fprintf(stderr, "Expansion of alias '%s' failed; "
"'%s' is not a git-command\n",
cmd, argv[0]);
exit(1);
}
- help_unknown_cmd(cmd);
+ if (!done_help) {
+ cmd = argv[0] = help_unknown_cmd(cmd);
+ done_help = 1;
+ } else
+ break;
}
fprintf(stderr, "Failed to run command '%s': %s\n",
projects / thirdparty / git.git / blobdiff