X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git.c;h=23a430c3690ed1f921ec22196edf1f0062bc6dcd;hb=44c637c8021e44253f0f8cb17391092e08b39e73;hp=cfec5d70ee42852f3819fe46e99ebc70f089ccc7;hpb=0227f9887bcc158dcd22ac4f60e5e428b259dd2d;p=git.git

diff --git a/git.c b/git.c
index cfec5d70e..23a430c36 100644
--- a/git.c
+++ b/git.c
@@ -4,7 +4,7 @@
 #include "quote.h"
 
 const char git_usage_string[] =
-	"git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate] [--bare] [--git-dir=GIT_DIR] [--help] COMMAND [ARGS]";
+	"git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate|--no-pager] [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE] [--help] COMMAND [ARGS]";
 
 static void prepend_to_path(const char *dir, int len)
 {
@@ -28,7 +28,7 @@ static void prepend_to_path(const char *dir, int len)
 	free(path);
 }
 
-static int handle_options(const char*** argv, int* argc)
+static int handle_options(const char*** argv, int* argc, int* envchanged)
 {
 	int handled = 0;
 
@@ -58,20 +58,45 @@ static int handle_options(const char*** argv, int* argc)
 			}
 		} else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
 			setup_pager();
+		} else if (!strcmp(cmd, "--no-pager")) {
+			setenv("GIT_PAGER", "cat", 1);
+			if (envchanged)
+				*envchanged = 1;
 		} else if (!strcmp(cmd, "--git-dir")) {
 			if (*argc < 2) {
 				fprintf(stderr, "No directory given for --git-dir.\n" );
 				usage(git_usage_string);
 			}
 			setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1);
+			if (envchanged)
+				*envchanged = 1;
 			(*argv)++;
 			(*argc)--;
 			handled++;
 		} else if (!prefixcmp(cmd, "--git-dir=")) {
 			setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
+			if (envchanged)
+				*envchanged = 1;
+		} else if (!strcmp(cmd, "--work-tree")) {
+			if (*argc < 2) {
+				fprintf(stderr, "No directory given for --work-tree.\n" );
+				usage(git_usage_string);
+			}
+			setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1);
+			if (envchanged)
+				*envchanged = 1;
+			(*argv)++;
+			(*argc)--;
+		} else if (!prefixcmp(cmd, "--work-tree=")) {
+			setenv(GIT_WORK_TREE_ENVIRONMENT, cmd + 12, 1);
+			if (envchanged)
+				*envchanged = 1;
 		} else if (!strcmp(cmd, "--bare")) {
 			static char git_dir[PATH_MAX+1];
-			setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 1);
+			is_bare_repository_cfg = 1;
+			setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0);
+			if (envchanged)
+				*envchanged = 1;
 		} else {
 			fprintf(stderr, "Unknown option: %s\n", cmd);
 			usage(git_usage_string);
@@ -150,7 +175,7 @@ static int split_cmdline(char *cmdline, const char ***argv)
 
 static int handle_alias(int *argcp, const char ***argv)
 {
-	int nongit = 0, ret = 0, saved_errno = errno;
+	int nongit = 0, envchanged = 0, ret = 0, saved_errno = errno;
 	const char *subdir;
 	int count, option_count;
 	const char** new_argv;
@@ -161,6 +186,15 @@ static int handle_alias(int *argcp, const char ***argv)
 	git_config(git_alias_config);
 	if (alias_string) {
 		if (alias_string[0] == '!') {
+			if (*argcp > 1) {
+				struct strbuf buf;
+
+				strbuf_init(&buf, PATH_MAX);
+				strbuf_addstr(&buf, alias_string);
+				sq_quote_argv(&buf, (*argv) + 1, *argcp - 1, PATH_MAX);
+				free(alias_string);
+				alias_string = buf.buf;
+			}
 			trace_printf("trace: alias to shell cmd: %s => %s\n",
 				     alias_command, alias_string + 1);
 			ret = system(alias_string + 1);
@@ -171,7 +205,11 @@ static int handle_alias(int *argcp, const char ***argv)
 			    alias_string + 1, alias_command);
 		}
 		count = split_cmdline(alias_string, &new_argv);
-		option_count = handle_options(&new_argv, &count);
+		option_count = handle_options(&new_argv, &count, &envchanged);
+		if (envchanged)
+			die("alias '%s' changes environment variables\n"
+				 "You can use '!git' in the alias to do this.",
+				 alias_command);
 		memmove(new_argv - option_count, new_argv,
 				count * sizeof(char *));
 		new_argv -= option_count;
@@ -214,7 +252,7 @@ const char git_version_string[] = GIT_VERSION;
  * require working tree to be present -- anything uses this needs
  * RUN_SETUP for reading from the configuration file.
  */
-#define NOT_BARE 	(1<<2)
+#define NEED_WORK_TREE	(1<<2)
 
 struct cmd_struct {
 	const char *cmd;
@@ -233,8 +271,12 @@ static int run_command(struct cmd_struct *p, int argc, const char **argv)
 		prefix = setup_git_directory();
 	if (p->option & USE_PAGER)
 		setup_pager();
-	if (p->option & NOT_BARE) {
-		if (is_bare_repository() || is_inside_git_dir())
+	if (p->option & NEED_WORK_TREE) {
+		const char *work_tree = get_git_work_tree();
+		const char *git_dir = get_git_dir();
+		if (!is_absolute_path(git_dir))
+			set_git_dir(make_absolute_path(git_dir));
+		if (!work_tree || chdir(work_tree))
 			die("%s must be run in a work tree", p->cmd);
 	}
 	trace_argv_printf(argv, argc, "trace: built-in: git");
@@ -264,27 +306,30 @@ static void handle_internal_command(int argc, const char **argv)
 {
 	const char *cmd = argv[0];
 	static struct cmd_struct commands[] = {
-		{ "add", cmd_add, RUN_SETUP | NOT_BARE },
-		{ "annotate", cmd_annotate, RUN_SETUP | USE_PAGER },
+		{ "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
+		{ "annotate", cmd_annotate, RUN_SETUP },
 		{ "apply", cmd_apply },
 		{ "archive", cmd_archive },
 		{ "blame", cmd_blame, RUN_SETUP },
 		{ "branch", cmd_branch, RUN_SETUP },
 		{ "bundle", cmd_bundle },
 		{ "cat-file", cmd_cat_file, RUN_SETUP },
-		{ "checkout-index", cmd_checkout_index, RUN_SETUP },
+		{ "checkout-index", cmd_checkout_index,
+			RUN_SETUP | NEED_WORK_TREE},
 		{ "check-ref-format", cmd_check_ref_format },
-		{ "check-attr", cmd_check_attr, RUN_SETUP | NOT_BARE },
+		{ "check-attr", cmd_check_attr, RUN_SETUP | NEED_WORK_TREE },
 		{ "cherry", cmd_cherry, RUN_SETUP },
-		{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NOT_BARE },
+		{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
 		{ "commit-tree", cmd_commit_tree, RUN_SETUP },
 		{ "config", cmd_config },
 		{ "count-objects", cmd_count_objects, RUN_SETUP },
 		{ "describe", cmd_describe, RUN_SETUP },
-		{ "diff", cmd_diff, USE_PAGER },
+		{ "diff", cmd_diff },
 		{ "diff-files", cmd_diff_files },
 		{ "diff-index", cmd_diff_index, RUN_SETUP },
 		{ "diff-tree", cmd_diff_tree, RUN_SETUP },
+		{ "fetch", cmd_fetch, RUN_SETUP },
+		{ "fetch-pack", cmd_fetch_pack, RUN_SETUP },
 		{ "fetch--tool", cmd_fetch__tool, RUN_SETUP },
 		{ "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
 		{ "for-each-ref", cmd_for_each_ref, RUN_SETUP },
@@ -295,6 +340,9 @@ static void handle_internal_command(int argc, const char **argv)
 		{ "get-tar-commit-id", cmd_get_tar_commit_id },
 		{ "grep", cmd_grep, RUN_SETUP | USE_PAGER },
 		{ "help", cmd_help },
+#ifndef NO_CURL
+		{ "http-fetch", cmd_http_fetch, RUN_SETUP },
+#endif
 		{ "init", cmd_init_db },
 		{ "init-db", cmd_init_db },
 		{ "log", cmd_log, RUN_SETUP | USE_PAGER },
@@ -304,10 +352,10 @@ static void handle_internal_command(int argc, const char **argv)
 		{ "mailsplit", cmd_mailsplit },
 		{ "merge-base", cmd_merge_base, RUN_SETUP },
 		{ "merge-file", cmd_merge_file },
-		{ "mv", cmd_mv, RUN_SETUP | NOT_BARE },
+		{ "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
 		{ "name-rev", cmd_name_rev, RUN_SETUP },
 		{ "pack-objects", cmd_pack_objects, RUN_SETUP },
-		{ "pickaxe", cmd_blame, RUN_SETUP | USE_PAGER },
+		{ "pickaxe", cmd_blame, RUN_SETUP },
 		{ "prune", cmd_prune, RUN_SETUP },
 		{ "prune-packed", cmd_prune_packed, RUN_SETUP },
 		{ "push", cmd_push, RUN_SETUP },
@@ -315,21 +363,24 @@ static void handle_internal_command(int argc, const char **argv)
 		{ "reflog", cmd_reflog, RUN_SETUP },
 		{ "repo-config", cmd_config },
 		{ "rerere", cmd_rerere, RUN_SETUP },
+		{ "reset", cmd_reset, RUN_SETUP },
 		{ "rev-list", cmd_rev_list, RUN_SETUP },
 		{ "rev-parse", cmd_rev_parse, RUN_SETUP },
-		{ "revert", cmd_revert, RUN_SETUP | NOT_BARE },
-		{ "rm", cmd_rm, RUN_SETUP | NOT_BARE },
-		{ "runstatus", cmd_runstatus, RUN_SETUP | NOT_BARE },
+		{ "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
+		{ "rm", cmd_rm, RUN_SETUP | NEED_WORK_TREE },
+		{ "runstatus", cmd_runstatus, RUN_SETUP | NEED_WORK_TREE },
 		{ "shortlog", cmd_shortlog, RUN_SETUP | USE_PAGER },
 		{ "show-branch", cmd_show_branch, RUN_SETUP },
 		{ "show", cmd_show, RUN_SETUP | USE_PAGER },
 		{ "stripspace", cmd_stripspace },
 		{ "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
+		{ "tag", cmd_tag, RUN_SETUP },
 		{ "tar-tree", cmd_tar_tree },
 		{ "unpack-objects", cmd_unpack_objects, RUN_SETUP },
 		{ "update-index", cmd_update_index, RUN_SETUP },
 		{ "update-ref", cmd_update_ref, RUN_SETUP },
 		{ "upload-archive", cmd_upload_archive },
+		{ "verify-tag", cmd_verify_tag, RUN_SETUP },
 		{ "version", cmd_version },
 		{ "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER },
 		{ "write-tree", cmd_write_tree, RUN_SETUP },
@@ -363,13 +414,14 @@ int main(int argc, const char **argv)
 	/*
 	 * Take the basename of argv[0] as the command
 	 * name, and the dirname as the default exec_path
-	 * if it's an absolute path and we don't have
-	 * anything better.
+	 * if we don't have anything better.
 	 */
 	if (slash) {
 		*slash++ = 0;
 		if (*cmd == '/')
 			exec_path = cmd;
+		else
+			exec_path = xstrdup(make_absolute_path(cmd));
 		cmd = slash;
 	}
 
@@ -393,7 +445,7 @@ int main(int argc, const char **argv)
 	/* Look for flags.. */
 	argv++;
 	argc--;
-	handle_options(&argv, &argc);
+	handle_options(&argv, &argc, NULL);
 	if (argc > 0) {
 		if (!prefixcmp(argv[0], "--"))
 			argv[0] += 2;
@@ -405,11 +457,11 @@ int main(int argc, const char **argv)
 	cmd = argv[0];
 
 	/*
-	 * We search for git commands in the following order:
-	 *  - git_exec_path()
-	 *  - the path of the "git" command if we could find it
-	 *    in $0
-	 *  - the regular PATH.
+	 * We execute external git command via execv_git_cmd(),
+	 * which looks at "--exec-path" option, GIT_EXEC_PATH
+	 * environment, and $(gitexecdir) in Makefile while built,
+	 * in this order.  For scripted commands, we prepend
+	 * the value of the exec_path variable to the PATH.
 	 */
 	if (exec_path)
 		prepend_to_path(exec_path, strlen(exec_path));