revision.c: explain what tree_difference does

diff --git a/git.c b/git.c
index 79fc73ca46b298533e2ebf8b7314ab33cf3b3cbf..dde4d07e8fbb830791417d422e4b9204373935e4 100644 (file)
--- a/git.c
+++ b/git.c
@@ -48,7 +48,7 @@ static int handle_options(const char*** argv, int* argc)
                /*
                 * Check remaining flags.
                 */
-               if (!strncmp(cmd, "--exec-path", 11)) {
+               if (!prefixcmp(cmd, "--exec-path")) {
                        cmd += 11;
                        if (*cmd == '=')
                                git_set_exec_path(cmd + 1);
@@ -66,7 +66,7 @@ static int handle_options(const char*** argv, int* argc)
                        setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1);
                        (*argv)++;
                        (*argc)--;
-               } else if (!strncmp(cmd, "--git-dir=", 10)) {
+               } else if (!prefixcmp(cmd, "--git-dir=")) {
                        setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
                } else if (!strcmp(cmd, "--bare")) {
                        static char git_dir[PATH_MAX+1];
@@ -88,7 +88,7 @@ static char *alias_string;
 
 static int git_alias_config(const char *var, const char *value)
 {
-       if (!strncmp(var, "alias.", 6) && !strcmp(var + 6, alias_command)) {
+       if (!prefixcmp(var, "alias.") && !strcmp(var + 6, alias_command)) {
                alias_string = xstrdup(value);
        }
        return 0;
@@ -226,13 +226,15 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                { "add", cmd_add, RUN_SETUP | NOT_BARE },
                { "annotate", cmd_annotate, USE_PAGER },
                { "apply", cmd_apply },
-               { "archive", cmd_archive },
+               { "archive", cmd_archive, RUN_SETUP },
                { "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 },
                { "check-ref-format", cmd_check_ref_format },
                { "cherry", cmd_cherry, RUN_SETUP },
+               { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NOT_BARE },
                { "commit-tree", cmd_commit_tree, RUN_SETUP },
                { "config", cmd_config },
                { "count-objects", cmd_count_objects, RUN_SETUP },
@@ -241,13 +243,14 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                { "diff-files", cmd_diff_files },
                { "diff-index", cmd_diff_index, RUN_SETUP },
                { "diff-tree", cmd_diff_tree, 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 },
                { "get-tar-commit-id", cmd_get_tar_commit_id },
-               { "grep", cmd_grep, RUN_SETUP },
+               { "grep", cmd_grep, RUN_SETUP | USE_PAGER },
                { "help", cmd_help },
                { "init", cmd_init_db },
                { "init-db", cmd_init_db },
@@ -271,6 +274,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
                { "rerere", cmd_rerere, 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 },
                { "shortlog", cmd_shortlog, RUN_SETUP | USE_PAGER },
@@ -348,7 +352,7 @@ int main(int argc, const char **argv, char **envp)
         * 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);
@@ -360,7 +364,7 @@ int main(int argc, const char **argv, char **envp)
        argc--;
        handle_options(&argv, &argc);
        if (argc > 0) {
-               if (!strncmp(argv[0], "--", 2))
+               if (!prefixcmp(argv[0], "--"))
                        argv[0] += 2;
        } else {
                /* Default command: "help" */