prune: honor --expire=never

[git.git] / builtin-help.c

diff --git a/builtin-help.c b/builtin-help.c
index 67dda3e6e63c9130a6f1e1c94cb35e519d765a95..3182a2bec466c50a9a1db1e91888bad3335414b1 100644 (file)
--- a/builtin-help.c
+++ b/builtin-help.c
@@ -23,13 +23,14 @@ static struct man_viewer_info_list {
 } *man_viewer_info_list;
 
 enum help_format {
+       HELP_FORMAT_NONE,
        HELP_FORMAT_MAN,
        HELP_FORMAT_INFO,
        HELP_FORMAT_WEB,
 };
 
 static int show_all = 0;
-static enum help_format help_format = HELP_FORMAT_MAN;
+static enum help_format help_format = HELP_FORMAT_NONE;
 static struct option builtin_help_options[] = {
        OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
        OPT_SET_INT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN),
@@ -80,10 +81,9 @@ static int check_emacsclient_version(void)
        ec_process.argv = argv_ec;
        ec_process.err = -1;
        ec_process.stdout_to_stderr = 1;
-       if (start_command(&ec_process)) {
-               fprintf(stderr, "Failed to start emacsclient.\n");
-               return -1;
-       }
+       if (start_command(&ec_process))
+               return error("Failed to start emacsclient.");
+
        strbuf_read(&buffer, ec_process.err, 20);
        close(ec_process.err);
 
@@ -94,20 +94,17 @@ static int check_emacsclient_version(void)
        finish_command(&ec_process);
 
        if (prefixcmp(buffer.buf, "emacsclient")) {
-               fprintf(stderr, "Failed to parse emacsclient version.\n");
                strbuf_release(&buffer);
-               return -1;
+               return error("Failed to parse emacsclient version.");
        }
 
        strbuf_remove(&buffer, 0, strlen("emacsclient"));
        version = atoi(buffer.buf);
 
        if (version < 22) {
-               fprintf(stderr,
-                       "emacsclient version '%d' too old (< 22).\n",
-                       version);
                strbuf_release(&buffer);
-               return -1;
+               return error("emacsclient version '%d' too old (< 22).",
+                       version);
        }
 
        strbuf_release(&buffer);
@@ -376,6 +373,7 @@ static void show_info_page(const char *git_cmd)
        const char *page = cmd_to_page(git_cmd);
        setenv("INFOPATH", system_path(GIT_INFO_PATH), 1);
        execlp("info", "info", "gitman", page, NULL);
+       die("no info viewer handled the request");
 }
 
 static void get_html_page_path(struct strbuf *page_path, const char *page)
@@ -398,7 +396,7 @@ static void get_html_page_path(struct strbuf *page_path, const char *page)
  * HTML.
  */
 #ifndef open_html
-void open_html(const char *path)
+static void open_html(const char *path)
 {
        execl_git_cmd("web--browse", "-c", "help.browser", path, NULL);
 }
@@ -418,13 +416,12 @@ int cmd_help(int argc, const char **argv, const char *prefix)
 {
        int nongit;
        const char *alias;
+       enum help_format parsed_help_format;
        load_command_list("git-", &main_cmds, &other_cmds);
 
-       setup_git_directory_gently(&nongit);
-       git_config(git_help_config, NULL);
-
-       argc = parse_options(argc, argv, builtin_help_options,
+       argc = parse_options(argc, argv, prefix, builtin_help_options,
                        builtin_help_usage, 0);
+       parsed_help_format = help_format;
 
        if (show_all) {
                printf("usage: %s\n\n", git_usage_string);
@@ -440,6 +437,12 @@ int cmd_help(int argc, const char **argv, const char *prefix)
                return 0;
        }
 
+       setup_git_directory_gently(&nongit);
+       git_config(git_help_config, NULL);
+
+       if (parsed_help_format != HELP_FORMAT_NONE)
+               help_format = parsed_help_format;
+
        alias = alias_lookup(argv[0]);
        if (alias && !is_git_command(argv[0])) {
                printf("`git %s' is aliased to `%s'\n", argv[0], alias);
@@ -447,6 +450,7 @@ int cmd_help(int argc, const char **argv, const char *prefix)
        }
 
        switch (help_format) {
+       case HELP_FORMAT_NONE:
        case HELP_FORMAT_MAN:
                show_man_page(argv[0]);
                break;