-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <sys/ioctl.h>
-#include "git-compat-util.h"
+#include "builtin.h"
#include "exec_cmd.h"
-#include "common-cmds.h"
-
#include "cache.h"
-#include "commit.h"
-#include "diff.h"
-#include "revision.h"
-#include "log-tree.h"
+#include "quote.h"
-#ifndef PATH_MAX
-# define PATH_MAX 4096
-#endif
+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]";
-static const char git_usage[] =
- "Usage: git [--version] [--exec-path[=GIT_EXEC_PATH]] [--help] COMMAND [ ARGS ]";
+const char git_more_info_string[] =
+ "See 'git help COMMAND' for more information on a specific command.";
-/* most gui terms set COLUMNS (although some don't export it) */
-static int term_columns(void)
+static int handle_options(const char*** argv, int* argc, int* envchanged)
{
- char *col_string = getenv("COLUMNS");
- int n_cols = 0;
-
- if (col_string && (n_cols = atoi(col_string)) > 0)
- return n_cols;
-
-#ifdef TIOCGWINSZ
- {
- struct winsize ws;
- if (!ioctl(1, TIOCGWINSZ, &ws)) {
- if (ws.ws_col)
- return ws.ws_col;
- }
- }
-#endif
-
- return 80;
-}
+ int handled = 0;
-static void oom(void)
-{
- fprintf(stderr, "git: out of memory\n");
- exit(1);
-}
+ while (*argc > 0) {
+ const char *cmd = (*argv)[0];
+ if (cmd[0] != '-')
+ break;
-static inline void mput_char(char c, unsigned int num)
-{
- while(num--)
- putchar(c);
-}
+ /*
+ * For legacy reasons, the "version" and "help"
+ * commands can be written with "--" prepended
+ * to make them look like flags.
+ */
+ if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version"))
+ break;
-static struct cmdname {
- size_t len;
- char name[1];
-} **cmdname;
-static int cmdname_alloc, cmdname_cnt;
+ /*
+ * Check remaining flags.
+ */
+ if (!prefixcmp(cmd, "--exec-path")) {
+ cmd += 11;
+ if (*cmd == '=')
+ git_set_argv_exec_path(cmd + 1);
+ else {
+ puts(git_exec_path());
+ exit(0);
+ }
+ } 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];
+ 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);
+ }
-static void add_cmdname(const char *name, int len)
-{
- struct cmdname *ent;
- if (cmdname_alloc <= cmdname_cnt) {
- cmdname_alloc = cmdname_alloc + 200;
- cmdname = realloc(cmdname, cmdname_alloc * sizeof(*cmdname));
- if (!cmdname)
- oom();
+ (*argv)++;
+ (*argc)--;
+ handled++;
}
- ent = malloc(sizeof(*ent) + len);
- if (!ent)
- oom();
- ent->len = len;
- memcpy(ent->name, name, len);
- ent->name[len] = 0;
- cmdname[cmdname_cnt++] = ent;
+ return handled;
}
-static int cmdname_compare(const void *a_, const void *b_)
+static int split_cmdline(char *cmdline, const char ***argv)
{
- struct cmdname *a = *(struct cmdname **)a_;
- struct cmdname *b = *(struct cmdname **)b_;
- return strcmp(a->name, b->name);
-}
-
-static void pretty_print_string_list(struct cmdname **cmdname, int longest)
-{
- int cols = 1, rows;
- int space = longest + 1; /* min 1 SP between words */
- int max_cols = term_columns() - 1; /* don't print *on* the edge */
- int i, j;
-
- if (space < max_cols)
- cols = max_cols / space;
- rows = (cmdname_cnt + cols - 1) / cols;
-
- qsort(cmdname, cmdname_cnt, sizeof(*cmdname), cmdname_compare);
-
- for (i = 0; i < rows; i++) {
- printf(" ");
-
- for (j = 0; j < cols; j++) {
- int n = j * rows + i;
- int size = space;
- if (n >= cmdname_cnt)
- break;
- if (j == cols-1 || n + rows >= cmdname_cnt)
- size = 1;
- printf("%-*s", size, cmdname[n]->name);
+ 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++;
}
- putchar('\n');
- }
-}
-
-static void list_commands(const char *exec_path, const char *pattern)
-{
- unsigned int longest = 0;
- char path[PATH_MAX];
- int dirlen;
- DIR *dir = opendir(exec_path);
- struct dirent *de;
-
- if (!dir) {
- fprintf(stderr, "git: '%s': %s\n", exec_path, strerror(errno));
- exit(1);
- }
-
- dirlen = strlen(exec_path);
- if (PATH_MAX - 20 < dirlen) {
- fprintf(stderr, "git: insanely long exec-path '%s'\n",
- exec_path);
- exit(1);
- }
-
- memcpy(path, exec_path, dirlen);
- path[dirlen++] = '/';
-
- while ((de = readdir(dir)) != NULL) {
- struct stat st;
- int entlen;
-
- if (strncmp(de->d_name, "git-", 4))
- continue;
- strcpy(path+dirlen, de->d_name);
- if (stat(path, &st) || /* stat, not lstat */
- !S_ISREG(st.st_mode) ||
- !(st.st_mode & S_IXUSR))
- continue;
-
- entlen = strlen(de->d_name);
- if (4 < entlen && !strcmp(de->d_name + entlen - 4, ".exe"))
- entlen -= 4;
-
- if (longest < entlen)
- longest = entlen;
-
- add_cmdname(de->d_name + 4, entlen-4);
}
- closedir(dir);
-
- printf("git commands available in '%s'\n", exec_path);
- printf("----------------------------");
- mput_char('-', strlen(exec_path));
- putchar('\n');
- pretty_print_string_list(cmdname, longest - 4);
- putchar('\n');
-}
-static void list_common_cmds_help(void)
-{
- int i, longest = 0;
+ cmdline[dst] = 0;
- for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
- if (longest < strlen(common_cmds[i].name))
- longest = strlen(common_cmds[i].name);
+ if (quoted) {
+ free(*argv);
+ *argv = NULL;
+ return error("unclosed quote");
}
- puts("The most commonly used git commands are:");
- for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
- printf(" %s", common_cmds[i].name);
- mput_char(' ', longest - strlen(common_cmds[i].name) + 4);
- puts(common_cmds[i].help);
- }
- puts("(use 'git help -a' to get a list of all installed git commands)");
+ return count;
}
-#ifdef __GNUC__
-static void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...)
- __attribute__((__format__(__printf__, 3, 4), __noreturn__));
-#endif
-static void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...)
+static int handle_alias(int *argcp, const char ***argv)
{
- if (fmt) {
- va_list ap;
-
- va_start(ap, fmt);
- printf("git: ");
- vprintf(fmt, ap);
- va_end(ap);
- putchar('\n');
+ int envchanged = 0, ret = 0, saved_errno = errno;
+ const char *subdir;
+ int count, option_count;
+ const char** new_argv;
+ const char *alias_command;
+ char *alias_string;
+ int unused_nongit;
+
+ subdir = setup_git_directory_gently(&unused_nongit);
+
+ alias_command = (*argv)[0];
+ alias_string = alias_lookup(alias_command);
+ 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, 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);
+ 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, &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;
+
+ if (count < 1)
+ die("empty alias for %s", alias_command);
+
+ if (!strcmp(alias_command, new_argv[0]))
+ die("recursive alias: %s", alias_command);
+
+ trace_argv_printf(new_argv,
+ "trace: alias expansion: %s =>",
+ alias_command);
+
+ new_argv = xrealloc(new_argv, sizeof(char*) *
+ (count + *argcp + 1));
+ /* insert after command name */
+ memcpy(new_argv + count, *argv + 1, sizeof(char*) * *argcp);
+ new_argv[count+*argcp] = NULL;
+
+ *argv = new_argv;
+ *argcp += count - 1;
+
+ ret = 1;
}
- else
- puts(git_usage);
-
- if (exec_path) {
- putchar('\n');
- if (show_all)
- list_commands(exec_path, "git-*");
- else
- list_common_cmds_help();
- }
-
- exit(1);
-}
-
-static void prepend_to_path(const char *dir, int len)
-{
- char *path, *old_path = getenv("PATH");
- int path_len = len;
-
- if (!old_path)
- old_path = "/usr/local/bin:/usr/bin:/bin";
- path_len = len + strlen(old_path) + 1;
+ if (subdir)
+ chdir(subdir);
- path = malloc(path_len + 1);
+ errno = saved_errno;
- memcpy(path, dir, len);
- path[len] = ':';
- memcpy(path + len + 1, old_path, path_len - len);
-
- setenv("PATH", path, 1);
+ return ret;
}
-static void show_man_page(const char *git_cmd)
-{
- const char *page;
-
- if (!strncmp(git_cmd, "git", 3))
- page = git_cmd;
- else {
- int page_len = strlen(git_cmd) + 4;
- char *p = malloc(page_len + 1);
- strcpy(p, "git-");
- strcpy(p + 4, git_cmd);
- p[page_len] = 0;
- page = p;
- }
-
- execlp("man", "man", page, NULL);
-}
-
-static int cmd_version(int argc, const char **argv, char **envp)
-{
- printf("git version %s\n", GIT_VERSION);
- return 0;
-}
+const char git_version_string[] = GIT_VERSION;
-static int cmd_help(int argc, const char **argv, char **envp)
-{
- const char *help_cmd = argv[1];
- if (!help_cmd)
- cmd_usage(0, git_exec_path(), NULL);
- else if (!strcmp(help_cmd, "--all") || !strcmp(help_cmd, "-a"))
- cmd_usage(1, git_exec_path(), NULL);
- else
- show_man_page(help_cmd);
- return 0;
-}
+#define RUN_SETUP (1<<0)
+#define USE_PAGER (1<<1)
+/*
+ * require working tree to be present -- anything uses this needs
+ * RUN_SETUP for reading from the configuration file.
+ */
+#define NEED_WORK_TREE (1<<2)
-#define LOGSIZE (65536)
+struct cmd_struct {
+ const char *cmd;
+ int (*fn)(int, const char **, const char *);
+ int option;
+};
-static int cmd_log(int argc, const char **argv, char **envp)
+static int run_command(struct cmd_struct *p, int argc, const char **argv)
{
- struct rev_info rev;
- struct commit *commit;
- char *buf = xmalloc(LOGSIZE);
- static enum cmit_fmt commit_format = CMIT_FMT_DEFAULT;
- int abbrev = DEFAULT_ABBREV;
- int abbrev_commit = 0;
- const char *commit_prefix = "commit ";
- struct log_tree_opt opt;
- int shown = 0;
- int do_diff = 0;
- int full_diff = 0;
-
- init_log_tree_opt(&opt);
- argc = setup_revisions(argc, argv, &rev, "HEAD");
- while (1 < argc) {
- const char *arg = argv[1];
- if (!strncmp(arg, "--pretty", 8)) {
- commit_format = get_commit_format(arg + 8);
- if (commit_format == CMIT_FMT_ONELINE)
- commit_prefix = "";
- }
- else if (!strcmp(arg, "--no-abbrev")) {
- abbrev = 0;
- }
- else if (!strcmp(arg, "--abbrev")) {
- abbrev = DEFAULT_ABBREV;
- }
- else if (!strcmp(arg, "--abbrev-commit")) {
- abbrev_commit = 1;
- }
- else if (!strncmp(arg, "--abbrev=", 9)) {
- abbrev = strtoul(arg + 9, NULL, 10);
- if (abbrev && abbrev < MINIMUM_ABBREV)
- abbrev = MINIMUM_ABBREV;
- else if (40 < abbrev)
- abbrev = 40;
- }
- else if (!strcmp(arg, "--full-diff")) {
- do_diff = 1;
- full_diff = 1;
- }
- else {
- int cnt = log_tree_opt_parse(&opt, argv+1, argc-1);
- if (0 < cnt) {
- do_diff = 1;
- argv += cnt;
- argc -= cnt;
- continue;
- }
- die("unrecognized argument: %s", arg);
- }
-
- argc--; argv++;
- }
-
- if (do_diff) {
- opt.diffopt.abbrev = abbrev;
- opt.verbose_header = 0;
- opt.always_show_header = 0;
- opt.no_commit_id = 1;
- if (opt.combine_merges)
- opt.ignore_merges = 0;
- if (opt.dense_combined_merges)
- opt.diffopt.output_format = DIFF_FORMAT_PATCH;
- if (opt.diffopt.output_format == DIFF_FORMAT_PATCH)
- opt.diffopt.recursive = 1;
- if (!full_diff && rev.prune_data)
- diff_tree_setup_paths(rev.prune_data, &opt.diffopt);
- diff_setup_done(&opt.diffopt);
- }
-
- prepare_revision_walk(&rev);
- setup_pager();
- while ((commit = get_revision(&rev)) != NULL) {
- if (shown && do_diff && commit_format != CMIT_FMT_ONELINE)
- putchar('\n');
- fputs(commit_prefix, stdout);
- if (abbrev_commit && abbrev)
- fputs(find_unique_abbrev(commit->object.sha1, abbrev),
- stdout);
- else
- fputs(sha1_to_hex(commit->object.sha1), stdout);
- if (rev.parents) {
- struct commit_list *parents = commit->parents;
- while (parents) {
- struct object *o = &(parents->item->object);
- parents = parents->next;
- if (o->flags & TMP_MARK)
- continue;
- printf(" %s", sha1_to_hex(o->sha1));
- o->flags |= TMP_MARK;
- }
- /* TMP_MARK is a general purpose flag that can
- * be used locally, but the user should clean
- * things up after it is done with them.
- */
- for (parents = commit->parents;
- parents;
- parents = parents->next)
- parents->item->object.flags &= ~TMP_MARK;
- }
- if (commit_format == CMIT_FMT_ONELINE)
- putchar(' ');
- else
- putchar('\n');
- pretty_print_commit(commit_format, commit, ~0, buf,
- LOGSIZE, abbrev);
- printf("%s\n", buf);
- if (do_diff)
- log_tree_commit(&opt, commit);
- shown = 1;
- free(commit->buffer);
- commit->buffer = NULL;
- }
- free(buf);
+ int status;
+ struct stat st;
+ const char *prefix;
+
+ prefix = NULL;
+ if (p->option & RUN_SETUP)
+ prefix = setup_git_directory();
+ if (p->option & USE_PAGER)
+ setup_pager();
+ if (p->option & NEED_WORK_TREE)
+ setup_work_tree();
+
+ trace_argv_printf(argv, "trace: built-in: git");
+
+ status = p->fn(argc, argv, prefix);
+ if (status)
+ return status & 0xff;
+
+ /* Somebody closed stdout? */
+ if (fstat(fileno(stdout), &st))
+ return 0;
+ /* Ignore write errors for pipes and sockets.. */
+ if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
+ return 0;
+
+ /* Check for ENOSPC and EIO errors.. */
+ if (fflush(stdout))
+ die("write failure on standard output: %s", strerror(errno));
+ if (ferror(stdout))
+ die("unknown write failure on standard output");
+ if (fclose(stdout))
+ die("close failed on standard output: %s", strerror(errno));
return 0;
}
-static void handle_internal_command(int argc, const char **argv, char **envp)
+static void handle_internal_command(int argc, const char **argv)
{
const char *cmd = argv[0];
- static struct cmd_struct {
- const char *cmd;
- int (*fn)(int, const char **, char **);
- } commands[] = {
- { "version", cmd_version },
+ static struct cmd_struct commands[] = {
+ { "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", cmd_checkout, RUN_SETUP | NEED_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 },
+ { "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 },
+ { "config", cmd_config },
+ { "count-objects", cmd_count_objects, RUN_SETUP },
+ { "describe", cmd_describe, RUN_SETUP },
+ { "diff", cmd_diff },
+ { "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 },
+ { "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 },
+ { "format-patch", cmd_format_patch, RUN_SETUP },
+ { "fsck", cmd_fsck, RUN_SETUP },
+ { "fsck-objects", cmd_fsck, RUN_SETUP },
+ { "gc", cmd_gc, RUN_SETUP },
+ { "get-tar-commit-id", cmd_get_tar_commit_id },
+ { "grep", cmd_grep, RUN_SETUP | USE_PAGER },
{ "help", cmd_help },
- { "log", cmd_log },
+#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 },
+ { "ls-files", cmd_ls_files, RUN_SETUP },
+ { "ls-tree", cmd_ls_tree, RUN_SETUP },
+ { "ls-remote", cmd_ls_remote },
+ { "mailinfo", cmd_mailinfo },
+ { "mailsplit", cmd_mailsplit },
+ { "merge-base", cmd_merge_base, RUN_SETUP },
+ { "merge-file", cmd_merge_file },
+ { "merge-ours", cmd_merge_ours, RUN_SETUP },
+ { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
+ { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
+ { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
+ { "name-rev", cmd_name_rev, RUN_SETUP },
+ { "pack-objects", cmd_pack_objects, RUN_SETUP },
+ { "peek-remote", cmd_ls_remote },
+ { "pickaxe", cmd_blame, RUN_SETUP },
+ { "prune", cmd_prune, RUN_SETUP },
+ { "prune-packed", cmd_prune_packed, RUN_SETUP },
+ { "push", cmd_push, RUN_SETUP },
+ { "read-tree", cmd_read_tree, RUN_SETUP },
+ { "reflog", cmd_reflog, RUN_SETUP },
+ { "remote", cmd_remote, 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 },
+ { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
+ { "rm", cmd_rm, RUN_SETUP },
+ { "send-pack", cmd_send_pack, RUN_SETUP },
+ { "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 },
+ { "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 },
+ { "verify-pack", cmd_verify_pack },
+ { "show-ref", cmd_show_ref, RUN_SETUP },
+ { "pack-refs", cmd_pack_refs, RUN_SETUP },
};
int i;
+ /* Turn "git cmd --help" into "git help cmd" */
+ if (argc > 1 && !strcmp(argv[1], "--help")) {
+ argv[1] = argv[0];
+ argv[0] = cmd = "help";
+ }
+
for (i = 0; i < ARRAY_SIZE(commands); i++) {
struct cmd_struct *p = commands+i;
if (strcmp(p->cmd, cmd))
continue;
- exit(p->fn(argc, argv, envp));
+ exit(run_command(p, argc, argv));
}
}
-int main(int argc, const char **argv, char **envp)
+int main(int argc, const char **argv)
{
- const char *cmd = argv[0];
+ const char *cmd = argv[0] ? argv[0] : "git-help";
char *slash = strrchr(cmd, '/');
- char git_command[PATH_MAX + 1];
- const char *exec_path = NULL;
+ const char *cmd_path = NULL;
+ int done_alias = 0;
/*
* 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;
+ cmd_path = cmd;
cmd = slash;
}
* So we just directly call the internal command handler, and
* die if that one cannot handle it.
*/
- if (!strncmp(cmd, "git-", 4)) {
+ if (!prefixcmp(cmd, "git-")) {
cmd += 4;
argv[0] = cmd;
- handle_internal_command(argc, argv, envp);
+ handle_internal_command(argc, argv);
die("cannot handle %s internally", cmd);
}
- /* Default command: "help" */
- cmd = "help";
-
/* Look for flags.. */
- while (argc > 1) {
- cmd = *++argv;
- argc--;
+ argv++;
+ argc--;
+ handle_options(&argv, &argc, NULL);
+ if (argc > 0) {
+ if (!prefixcmp(argv[0], "--"))
+ argv[0] += 2;
+ } else {
+ /* 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];
- if (strncmp(cmd, "--", 2))
- break;
+ /*
+ * We use PATH to find git commands, but we prepend some higher
+ * precidence paths: the "--exec-path" option, the GIT_EXEC_PATH
+ * environment, and the $(gitexecdir) from the Makefile at build
+ * time.
+ */
+ setup_path(cmd_path);
- cmd += 2;
+ while (1) {
+ /* See if it's an internal command */
+ handle_internal_command(argc, argv);
- /*
- * For legacy reasons, the "version" and "help"
- * commands can be written with "--" prepended
- * to make them look like flags.
+ /* .. 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 (!strcmp(cmd, "help"))
- break;
- if (!strcmp(cmd, "version"))
+ if (done_alias || !handle_alias(&argc, &argv))
break;
+ done_alias = 1;
+ }
- /*
- * Check remaining flags (which by now must be
- * "--exec-path", but maybe we will accept
- * other arguments some day)
- */
- if (!strncmp(cmd, "exec-path", 9)) {
- cmd += 9;
- if (*cmd == '=') {
- git_set_exec_path(cmd + 1);
- continue;
- }
- puts(git_exec_path());
- exit(0);
+ if (errno == ENOENT) {
+ if (done_alias) {
+ fprintf(stderr, "Expansion of alias '%s' failed; "
+ "'%s' is not a git-command\n",
+ cmd, argv[0]);
+ exit(1);
}
- cmd_usage(0, NULL, NULL);
+ help_unknown_cmd(cmd);
}
- argv[0] = cmd;
-
- /*
- * 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.
- */
- if (exec_path)
- prepend_to_path(exec_path, strlen(exec_path));
- exec_path = git_exec_path();
- prepend_to_path(exec_path, strlen(exec_path));
-
- /* See if it's an internal command */
- handle_internal_command(argc, argv, envp);
-
- /* .. then try the external ones */
- execv_git_cmd(argv);
-
- if (errno == ENOENT)
- cmd_usage(0, exec_path, "'%s' is not a git-command", cmd);
fprintf(stderr, "Failed to run command '%s': %s\n",
- git_command, strerror(errno));
+ cmd, strerror(errno));
return 1;
}