send-pack.c: move async's #ifdef NO_PTHREADS back to run-command.c
[gitweb.git] / git.c
diff --git a/git.c b/git.c
index ceaa58ef40e536f1290cce3ad1223004063e41a6..adac132956e995e2dfe050b0f709ff9aaa9c7673 100644 (file)
--- a/git.c
+++ b/git.c
@@ -1,13 +1,32 @@
 #include "builtin.h"
 #include "config.h"
-#include "exec_cmd.h"
+#include "exec-cmd.h"
 #include "help.h"
 #include "run-command.h"
+#include "alias.h"
+
+#define RUN_SETUP              (1<<0)
+#define RUN_SETUP_GENTLY       (1<<1)
+#define USE_PAGER              (1<<2)
+/*
+ * require working tree to be present -- anything uses this needs
+ * RUN_SETUP for reading from the configuration file.
+ */
+#define NEED_WORK_TREE         (1<<3)
+#define SUPPORT_SUPER_PREFIX   (1<<4)
+#define DELAY_PAGER_CONFIG     (1<<5)
+#define NO_PARSEOPT            (1<<6) /* parse-options is not used */
+
+struct cmd_struct {
+       const char *cmd;
+       int (*fn)(int, const char **, const char *);
+       unsigned int option;
+};
 
 const char git_usage_string[] =
        N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n"
           "           [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
-          "           [-p | --paginate | --no-pager] [--no-replace-objects] [--bare]\n"
+          "           [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n"
           "           [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
           "           <command> [<args>]");
 
@@ -18,7 +37,66 @@ const char git_more_info_string[] =
 
 static int use_pager = -1;
 
-static void list_builtins(void);
+static void list_builtins(struct string_list *list, unsigned int exclude_option);
+
+static void exclude_helpers_from_list(struct string_list *list)
+{
+       int i = 0;
+
+       while (i < list->nr) {
+               if (strstr(list->items[i].string, "--"))
+                       unsorted_string_list_delete_item(list, i, 0);
+               else
+                       i++;
+       }
+}
+
+static int match_token(const char *spec, int len, const char *token)
+{
+       int token_len = strlen(token);
+
+       return len == token_len && !strncmp(spec, token, token_len);
+}
+
+static int list_cmds(const char *spec)
+{
+       struct string_list list = STRING_LIST_INIT_DUP;
+       int i;
+
+       while (*spec) {
+               const char *sep = strchrnul(spec, ',');
+               int len = sep - spec;
+
+               if (match_token(spec, len, "builtins"))
+                       list_builtins(&list, 0);
+               else if (match_token(spec, len, "main"))
+                       list_all_main_cmds(&list);
+               else if (match_token(spec, len, "others"))
+                       list_all_other_cmds(&list);
+               else if (match_token(spec, len, "nohelpers"))
+                       exclude_helpers_from_list(&list);
+               else if (match_token(spec, len, "alias"))
+                       list_aliases(&list);
+               else if (match_token(spec, len, "config"))
+                       list_cmds_by_config(&list);
+               else if (len > 5 && !strncmp(spec, "list-", 5)) {
+                       struct strbuf sb = STRBUF_INIT;
+
+                       strbuf_add(&sb, spec + 5, len - 5);
+                       list_cmds_by_category(&list, sb.buf);
+                       strbuf_release(&sb);
+               }
+               else
+                       die(_("unsupported command listing type '%s'"), spec);
+               spec += len;
+               if (*spec == ',')
+                       spec++;
+       }
+       for (i = 0; i < list.nr; i++)
+               puts(list.items[i].string);
+       string_list_clear(&list, 0);
+       return 0;
+}
 
 static void commit_pager_choice(void) {
        switch (use_pager) {
@@ -65,7 +143,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                 */
                if (skip_prefix(cmd, "--exec-path", &cmd)) {
                        if (*cmd == '=')
-                               git_set_argv_exec_path(cmd + 1);
+                               git_set_exec_path(cmd + 1);
                        else {
                                puts(git_exec_path());
                                exit(0);
@@ -81,12 +159,12 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        exit(0);
                } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
                        use_pager = 1;
-               } else if (!strcmp(cmd, "--no-pager")) {
+               } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) {
                        use_pager = 0;
                        if (envchanged)
                                *envchanged = 1;
                } else if (!strcmp(cmd, "--no-replace-objects")) {
-                       check_replace_refs = 0;
+                       read_replace_refs = 0;
                        setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1);
                        if (envchanged)
                                *envchanged = 1;
@@ -189,7 +267,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                } else if (!strcmp(cmd, "--shallow-file")) {
                        (*argv)++;
                        (*argc)--;
-                       set_alternate_shallow_file((*argv)[0], 1);
+                       set_alternate_shallow_file(the_repository, (*argv)[0], 1);
                        if (envchanged)
                                *envchanged = 1;
                } else if (!strcmp(cmd, "-C")) {
@@ -205,9 +283,19 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        }
                        (*argv)++;
                        (*argc)--;
-               } else if (!strcmp(cmd, "--list-builtins")) {
-                       list_builtins();
-                       exit(0);
+               } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) {
+                       if (!strcmp(cmd, "parseopt")) {
+                               struct string_list list = STRING_LIST_INIT_DUP;
+                               int i;
+
+                               list_builtins(&list, NO_PARSEOPT);
+                               for (i = 0; i < list.nr; i++)
+                                       printf("%s ", list.items[i].string);
+                               string_list_clear(&list, 0);
+                               exit(0);
+                       } else {
+                               exit(list_cmds(cmd));
+                       }
                } else {
                        fprintf(stderr, _("unknown option: %s\n"), cmd);
                        usage(git_usage_string);
@@ -230,6 +318,9 @@ static int handle_alias(int *argcp, const char ***argv)
        alias_command = (*argv)[0];
        alias_string = alias_lookup(alias_command);
        if (alias_string) {
+               if (*argcp > 1 && !strcmp((*argv)[1], "-h"))
+                       fprintf_ln(stderr, _("'%s' is aliased to '%s'"),
+                                  alias_command, alias_string);
                if (alias_string[0] == '!') {
                        struct child_process child = CHILD_PROCESS_INIT;
                        int nongit_ok;
@@ -288,23 +379,6 @@ static int handle_alias(int *argcp, const char ***argv)
        return ret;
 }
 
-#define RUN_SETUP              (1<<0)
-#define RUN_SETUP_GENTLY       (1<<1)
-#define USE_PAGER              (1<<2)
-/*
- * require working tree to be present -- anything uses this needs
- * RUN_SETUP for reading from the configuration file.
- */
-#define NEED_WORK_TREE         (1<<3)
-#define SUPPORT_SUPER_PREFIX   (1<<4)
-#define DELAY_PAGER_CONFIG     (1<<5)
-
-struct cmd_struct {
-       const char *cmd;
-       int (*fn)(int, const char **, const char *);
-       int option;
-};
-
 static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 {
        int status, help;
@@ -343,7 +417,10 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 
        trace_argv_printf(argv, "trace: built-in: git");
 
+       validate_cache_entries(&the_index);
        status = p->fn(argc, argv, prefix);
+       validate_cache_entries(&the_index);
+
        if (status)
                return status;
 
@@ -367,18 +444,18 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 static struct cmd_struct commands[] = {
        { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
        { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE },
-       { "annotate", cmd_annotate, RUN_SETUP },
+       { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT },
        { "apply", cmd_apply, RUN_SETUP_GENTLY },
        { "archive", cmd_archive, RUN_SETUP_GENTLY },
        { "bisect--helper", cmd_bisect__helper, RUN_SETUP },
        { "blame", cmd_blame, RUN_SETUP },
        { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG },
-       { "bundle", cmd_bundle, RUN_SETUP_GENTLY },
+       { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT },
        { "cat-file", cmd_cat_file, RUN_SETUP },
        { "check-attr", cmd_check_attr, RUN_SETUP },
        { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE },
        { "check-mailmap", cmd_check_mailmap, RUN_SETUP },
-       { "check-ref-format", cmd_check_ref_format },
+       { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT  },
        { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE },
        { "checkout-index", cmd_checkout_index,
                RUN_SETUP | NEED_WORK_TREE},
@@ -388,30 +465,31 @@ static struct cmd_struct commands[] = {
        { "clone", cmd_clone },
        { "column", cmd_column, RUN_SETUP_GENTLY },
        { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
-       { "commit-tree", cmd_commit_tree, RUN_SETUP },
+       { "commit-graph", cmd_commit_graph, RUN_SETUP },
+       { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT },
        { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG },
        { "count-objects", cmd_count_objects, RUN_SETUP },
-       { "credential", cmd_credential, RUN_SETUP_GENTLY },
+       { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT },
        { "describe", cmd_describe, RUN_SETUP },
-       { "diff", cmd_diff },
-       { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE },
-       { "diff-index", cmd_diff_index, RUN_SETUP },
-       { "diff-tree", cmd_diff_tree, RUN_SETUP },
+       { "diff", cmd_diff, NO_PARSEOPT },
+       { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
+       { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT },
+       { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT },
        { "difftool", cmd_difftool, RUN_SETUP | NEED_WORK_TREE },
        { "fast-export", cmd_fast_export, RUN_SETUP },
        { "fetch", cmd_fetch, RUN_SETUP },
-       { "fetch-pack", cmd_fetch_pack, RUN_SETUP },
+       { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT },
        { "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 },
+       { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT },
        { "grep", cmd_grep, RUN_SETUP_GENTLY },
        { "hash-object", cmd_hash_object },
        { "help", cmd_help },
-       { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY },
+       { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT },
        { "init", cmd_init_db },
        { "init-db", cmd_init_db },
        { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY },
@@ -419,72 +497,77 @@ static struct cmd_struct commands[] = {
        { "ls-files", cmd_ls_files, RUN_SETUP },
        { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
        { "ls-tree", cmd_ls_tree, RUN_SETUP },
-       { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY },
-       { "mailsplit", cmd_mailsplit },
+       { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT },
+       { "mailsplit", cmd_mailsplit, NO_PARSEOPT },
        { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE },
        { "merge-base", cmd_merge_base, RUN_SETUP },
        { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY },
-       { "merge-index", cmd_merge_index, RUN_SETUP },
-       { "merge-ours", cmd_merge_ours, RUN_SETUP },
-       { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
-       { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
-       { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
-       { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
-       { "merge-tree", cmd_merge_tree, RUN_SETUP },
-       { "mktag", cmd_mktag, RUN_SETUP },
+       { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT },
+       { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT },
+       { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
+       { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
+       { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
+       { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
+       { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT },
+       { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT },
        { "mktree", cmd_mktree, RUN_SETUP },
+       { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP_GENTLY },
        { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
        { "name-rev", cmd_name_rev, RUN_SETUP },
        { "notes", cmd_notes, RUN_SETUP },
        { "pack-objects", cmd_pack_objects, RUN_SETUP },
-       { "pack-redundant", cmd_pack_redundant, RUN_SETUP },
+       { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT },
        { "pack-refs", cmd_pack_refs, RUN_SETUP },
-       { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY },
+       { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT },
        { "pickaxe", cmd_blame, RUN_SETUP },
        { "prune", cmd_prune, RUN_SETUP },
        { "prune-packed", cmd_prune_packed, RUN_SETUP },
        { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE },
        { "push", cmd_push, RUN_SETUP },
+       { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER },
        { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX},
        { "rebase--helper", cmd_rebase__helper, RUN_SETUP | NEED_WORK_TREE },
        { "receive-pack", cmd_receive_pack },
        { "reflog", cmd_reflog, RUN_SETUP },
        { "remote", cmd_remote, RUN_SETUP },
-       { "remote-ext", cmd_remote_ext },
-       { "remote-fd", cmd_remote_fd },
+       { "remote-ext", cmd_remote_ext, NO_PARSEOPT },
+       { "remote-fd", cmd_remote_fd, NO_PARSEOPT },
        { "repack", cmd_repack, RUN_SETUP },
        { "replace", cmd_replace, RUN_SETUP },
        { "rerere", cmd_rerere, RUN_SETUP },
        { "reset", cmd_reset, RUN_SETUP },
-       { "rev-list", cmd_rev_list, RUN_SETUP },
-       { "rev-parse", cmd_rev_parse },
+       { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT },
+       { "rev-parse", cmd_rev_parse, NO_PARSEOPT },
        { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
        { "rm", cmd_rm, RUN_SETUP },
        { "send-pack", cmd_send_pack, RUN_SETUP },
+       { "serve", cmd_serve, RUN_SETUP },
        { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER },
        { "show", cmd_show, RUN_SETUP },
        { "show-branch", cmd_show_branch, RUN_SETUP },
+       { "show-index", cmd_show_index },
        { "show-ref", cmd_show_ref, RUN_SETUP },
        { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
        { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
        { "stripspace", cmd_stripspace },
-       { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX},
+       { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT },
        { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
        { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG },
-       { "unpack-file", cmd_unpack_file, RUN_SETUP },
-       { "unpack-objects", cmd_unpack_objects, RUN_SETUP },
+       { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT },
+       { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT },
        { "update-index", cmd_update_index, RUN_SETUP },
        { "update-ref", cmd_update_ref, RUN_SETUP },
        { "update-server-info", cmd_update_server_info, RUN_SETUP },
-       { "upload-archive", cmd_upload_archive },
-       { "upload-archive--writer", cmd_upload_archive_writer },
-       { "var", cmd_var, RUN_SETUP_GENTLY },
+       { "upload-archive", cmd_upload_archive, NO_PARSEOPT },
+       { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT },
+       { "upload-pack", cmd_upload_pack },
+       { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT },
        { "verify-commit", cmd_verify_commit, RUN_SETUP },
        { "verify-pack", cmd_verify_pack },
        { "verify-tag", cmd_verify_tag, RUN_SETUP },
        { "version", cmd_version },
        { "whatchanged", cmd_whatchanged, RUN_SETUP },
-       { "worktree", cmd_worktree, RUN_SETUP },
+       { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT },
        { "write-tree", cmd_write_tree, RUN_SETUP },
 };
 
@@ -504,11 +587,15 @@ int is_builtin(const char *s)
        return !!get_builtin(s);
 }
 
-static void list_builtins(void)
+static void list_builtins(struct string_list *out, unsigned int exclude_option)
 {
        int i;
-       for (i = 0; i < ARRAY_SIZE(commands); i++)
-               printf("%s\n", commands[i].cmd);
+       for (i = 0; i < ARRAY_SIZE(commands); i++) {
+               if (exclude_option &&
+                   (commands[i].option & exclude_option))
+                       continue;
+               string_list_append(out, commands[i].cmd);
+       }
 }
 
 #ifdef STRIP_EXTENSION
@@ -591,6 +678,8 @@ static void execv_dashed_external(const char **argv)
 static int run_argv(int *argcp, const char ***argv)
 {
        int done_alias = 0;
+       struct string_list cmd_list = STRING_LIST_INIT_NODUP;
+       struct string_list_item *seen;
 
        while (1) {
                /*
@@ -608,17 +697,37 @@ static int run_argv(int *argcp, const char ***argv)
                /* .. then try the external ones */
                execv_dashed_external(*argv);
 
-               /* It could be an alias -- this works around the insanity
+               seen = unsorted_string_list_lookup(&cmd_list, *argv[0]);
+               if (seen) {
+                       int i;
+                       struct strbuf sb = STRBUF_INIT;
+                       for (i = 0; i < cmd_list.nr; i++) {
+                               struct string_list_item *item = &cmd_list.items[i];
+
+                               strbuf_addf(&sb, "\n  %s", item->string);
+                               if (item == seen)
+                                       strbuf_addstr(&sb, " <==");
+                               else if (i == cmd_list.nr - 1)
+                                       strbuf_addstr(&sb, " ==>");
+                       }
+                       die(_("alias loop detected: expansion of '%s' does"
+                             " not terminate:%s"), cmd_list.items[0].string, sb.buf);
+               }
+
+               string_list_append(&cmd_list, *argv[0]);
+
+               /*
+                * 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)
-                       break;
                if (!handle_alias(argcp, argv))
                        break;
                done_alias = 1;
        }
 
+       string_list_clear(&cmd_list, 0);
+
        return done_alias;
 }