diff options
Diffstat (limited to 'git.c')
| -rw-r--r-- | git.c | 178 |
1 files changed, 105 insertions, 73 deletions
@@ -35,6 +35,59 @@ static void prepend_to_path(const char *dir, int len) setenv("PATH", path, 1); } +static int handle_options(const char*** argv, int* argc) +{ + int handled = 0; + + while (*argc > 0) { + const char *cmd = (*argv)[0]; + if (cmd[0] != '-') + break; + + /* + * 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; + + /* + * Check remaining flags. + */ + if (!strncmp(cmd, "--exec-path", 11)) { + cmd += 11; + if (*cmd == '=') + git_set_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, "--git-dir")) { + if (*argc < 1) + return -1; + setenv("GIT_DIR", (*argv)[1], 1); + (*argv)++; + (*argc)--; + } else if (!strncmp(cmd, "--git-dir=", 10)) { + setenv("GIT_DIR", cmd + 10, 1); + } else if (!strcmp(cmd, "--bare")) { + static char git_dir[1024]; + setenv("GIT_DIR", getcwd(git_dir, 1024), 1); + } else { + fprintf(stderr, "Unknown option: %s\n", cmd); + cmd_usage(0, NULL, NULL); + } + + (*argv)++; + (*argc)--; + handled++; + } + return handled; +} + static const char *alias_command; static char *alias_string = NULL; @@ -106,7 +159,7 @@ static int handle_alias(int *argcp, const char ***argv) subdir = setup_git_directory_gently(&nongit); if (!nongit) { - int count; + int count, option_count; const char** new_argv; alias_command = (*argv)[0]; @@ -114,6 +167,10 @@ static int handle_alias(int *argcp, const char ***argv) if (alias_string) { count = split_cmdline(alias_string, &new_argv); + option_count = handle_options(&new_argv, &count); + memmove(new_argv - option_count, new_argv, + count * sizeof(char *)); + new_argv -= option_count; if (count < 1) die("empty alias for %s", alias_command); @@ -157,52 +214,55 @@ static int handle_alias(int *argcp, const char ***argv) const char git_version_string[] = GIT_VERSION; +#define NEEDS_PREFIX 1 + static void handle_internal_command(int argc, const char **argv, char **envp) { const char *cmd = argv[0]; static struct cmd_struct { const char *cmd; - int (*fn)(int, const char **, char **); + int (*fn)(int, const char **, const char *); + int prefix; } commands[] = { { "version", cmd_version }, { "help", cmd_help }, - { "log", cmd_log }, - { "whatchanged", cmd_whatchanged }, - { "show", cmd_show }, + { "log", cmd_log, NEEDS_PREFIX }, + { "whatchanged", cmd_whatchanged, NEEDS_PREFIX }, + { "show", cmd_show, NEEDS_PREFIX }, { "push", cmd_push }, - { "format-patch", cmd_format_patch }, + { "format-patch", cmd_format_patch, NEEDS_PREFIX }, { "count-objects", cmd_count_objects }, - { "diff", cmd_diff }, - { "grep", cmd_grep }, - { "rm", cmd_rm }, - { "add", cmd_add }, - { "rev-list", cmd_rev_list }, + { "diff", cmd_diff, NEEDS_PREFIX }, + { "grep", cmd_grep, NEEDS_PREFIX }, + { "rm", cmd_rm, NEEDS_PREFIX }, + { "add", cmd_add, NEEDS_PREFIX }, + { "rev-list", cmd_rev_list, NEEDS_PREFIX }, { "init-db", cmd_init_db }, { "get-tar-commit-id", cmd_get_tar_commit_id }, { "upload-tar", cmd_upload_tar }, { "check-ref-format", cmd_check_ref_format }, - { "ls-files", cmd_ls_files }, - { "ls-tree", cmd_ls_tree }, - { "tar-tree", cmd_tar_tree }, - { "read-tree", cmd_read_tree }, - { "commit-tree", cmd_commit_tree }, + { "ls-files", cmd_ls_files, NEEDS_PREFIX }, + { "ls-tree", cmd_ls_tree, NEEDS_PREFIX }, + { "tar-tree", cmd_tar_tree, NEEDS_PREFIX }, + { "read-tree", cmd_read_tree, NEEDS_PREFIX }, + { "commit-tree", cmd_commit_tree, NEEDS_PREFIX }, { "apply", cmd_apply }, - { "show-branch", cmd_show_branch }, - { "diff-files", cmd_diff_files }, - { "diff-index", cmd_diff_index }, - { "diff-stages", cmd_diff_stages }, - { "diff-tree", cmd_diff_tree }, - { "cat-file", cmd_cat_file }, - { "rev-parse", cmd_rev_parse }, - { "write-tree", cmd_write_tree }, + { "show-branch", cmd_show_branch, NEEDS_PREFIX }, + { "diff-files", cmd_diff_files, NEEDS_PREFIX }, + { "diff-index", cmd_diff_index, NEEDS_PREFIX }, + { "diff-stages", cmd_diff_stages, NEEDS_PREFIX }, + { "diff-tree", cmd_diff_tree, NEEDS_PREFIX }, + { "cat-file", cmd_cat_file, NEEDS_PREFIX }, + { "rev-parse", cmd_rev_parse, NEEDS_PREFIX }, + { "write-tree", cmd_write_tree, NEEDS_PREFIX }, { "mailsplit", cmd_mailsplit }, { "mailinfo", cmd_mailinfo }, { "stripspace", cmd_stripspace }, - { "update-index", cmd_update_index }, - { "update-ref", cmd_update_ref }, - { "fmt-merge-msg", cmd_fmt_merge_msg }, - { "prune", cmd_prune }, - { "mv", cmd_mv }, + { "update-index", cmd_update_index, NEEDS_PREFIX }, + { "update-ref", cmd_update_ref, NEEDS_PREFIX }, + { "fmt-merge-msg", cmd_fmt_merge_msg, NEEDS_PREFIX }, + { "prune", cmd_prune, NEEDS_PREFIX }, + { "mv", cmd_mv, NEEDS_PREFIX }, }; int i; @@ -214,9 +274,13 @@ static void handle_internal_command(int argc, const char **argv, char **envp) for (i = 0; i < ARRAY_SIZE(commands); i++) { struct cmd_struct *p = commands+i; + const char *prefix; if (strcmp(p->cmd, cmd)) continue; + prefix = NULL; + if (p->prefix) + prefix = setup_git_directory(); if (getenv("GIT_TRACE")) { int i; fprintf(stderr, "trace: built-in: git"); @@ -228,7 +292,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp) fflush(stderr); } - exit(p->fn(argc, argv, envp)); + exit(p->fn(argc, argv, prefix)); } } @@ -269,51 +333,19 @@ int main(int argc, const char **argv, char **envp) die("cannot handle %s internally", cmd); } - /* Default command: "help" */ - cmd = "help"; - /* Look for flags.. */ - while (argc > 1) { - cmd = *++argv; - argc--; - - if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { - setup_pager(); - continue; - } - - if (strncmp(cmd, "--", 2)) - break; - - cmd += 2; - - /* - * For legacy reasons, the "version" and "help" - * commands can be written with "--" prepended - * to make them look like flags. - */ - if (!strcmp(cmd, "help")) - break; - if (!strcmp(cmd, "version")) - break; - - /* - * 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); - } - cmd_usage(0, NULL, NULL); + argv++; + argc--; + handle_options(&argv, &argc); + if (argc > 0) { + if (!strncmp(argv[0], "--", 2)) + argv[0] += 2; + } else { + /* Default command: "help" */ + argv[0] = "help"; + argc = 1; } - argv[0] = cmd; + cmd = argv[0]; /* * We search for git commands in the following order: |