revision: --max-age alone does not need limit_list() anymore.

diff --git a/git.c b/git.c
index 746e2af6841b1658320a48af3a8407a07a4d18ca..72039c69cbd08dc70bd611765039883182472191 100644 (file)
--- a/git.c
+++ b/git.c
@@ -11,6 +11,7 @@
 #include <sys/ioctl.h>
 #include "git-compat-util.h"
 #include "exec_cmd.h"
+#include "common-cmds.h"
 
 #include "cache.h"
 #include "commit.h"
@@ -171,11 +172,29 @@ static void list_commands(const char *exec_path, const char *pattern)
        putchar('\n');
 }
 
+static void list_common_cmds_help()
+{
+       int i, longest = 0;
+
+       for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
+               if (longest < strlen(common_cmds[i].name))
+                       longest = strlen(common_cmds[i].name);
+       }
+
+       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)");
+}
+
 #ifdef __GNUC__
-static void cmd_usage(const char *exec_path, const char *fmt, ...)
-       __attribute__((__format__(__printf__, 2, 3), __noreturn__));
+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(const char *exec_path, const char *fmt, ...)
+static void cmd_usage(int show_all, const char *exec_path, const char *fmt, ...)
 {
        if (fmt) {
                va_list ap;
@@ -189,10 +208,13 @@ static void cmd_usage(const char *exec_path, const char *fmt, ...)
        else
                puts(git_usage);
 
-       putchar('\n');
-
-       if(exec_path)
-               list_commands(exec_path, "git-*");
+       if (exec_path) {
+               putchar('\n');
+               if (show_all)
+                       list_commands(exec_path, "git-*");
+               else
+                       list_common_cmds_help();
+        }
 
        exit(1);
 }
@@ -244,8 +266,11 @@ static int cmd_help(int argc, const char **argv, char **envp)
 {
        const char *help_cmd = argv[1];
        if (!help_cmd)
-               cmd_usage(git_exec_path(), NULL);
-       show_man_page(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;
 }
 
@@ -258,7 +283,6 @@ static int cmd_log(int argc, const char **argv, char **envp)
        char *buf = xmalloc(LOGSIZE);
        static enum cmit_fmt commit_format = CMIT_FMT_DEFAULT;
        int abbrev = DEFAULT_ABBREV;
-       int show_parents = 0;
        const char *commit_prefix = "commit ";
 
        argc = setup_revisions(argc, argv, &rev, "HEAD");
@@ -269,9 +293,6 @@ static int cmd_log(int argc, const char **argv, char **envp)
                        if (commit_format == CMIT_FMT_ONELINE)
                                commit_prefix = "";
                }
-               else if (!strcmp(arg, "--parents")) {
-                       show_parents = 1;
-               }
                else if (!strcmp(arg, "--no-abbrev")) {
                        abbrev = 0;
                }
@@ -292,7 +313,7 @@ static int cmd_log(int argc, const char **argv, char **envp)
        while ((commit = get_revision(&rev)) != NULL) {
                printf("%s%s", commit_prefix,
                       sha1_to_hex(commit->object.sha1));
-               if (show_parents) {
+               if (rev.parents) {
                        struct commit_list *parents = commit->parents;
                        while (parents) {
                                struct object *o = &(parents->item->object);
@@ -418,7 +439,7 @@ int main(int argc, const char **argv, char **envp)
                        puts(git_exec_path());
                        exit(0);
                }
-               cmd_usage(NULL, NULL);
+               cmd_usage(0, NULL, NULL);
        }
        argv[0] = cmd;
 
@@ -441,7 +462,7 @@ int main(int argc, const char **argv, char **envp)
        execv_git_cmd(argv);
 
        if (errno == ENOENT)
-               cmd_usage(exec_path, "'%s' is not a git-command", cmd);
+               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));