Common option parsing for "git log --diff" and friends

[git.git] / git.c

diff --git a/git.c b/git.c
index 0b40e30..437e9b5 100644 (file)
--- a/git.c
+++ b/git.c
@@ -15,7 +15,9 @@
 
 #include "cache.h"
 #include "commit.h"
+#include "diff.h"
 #include "revision.h"
+#include "log-tree.h"
 
 #ifndef PATH_MAX
 # define PATH_MAX 4096
@@ -172,7 +174,7 @@ static void list_commands(const char *exec_path, const char *pattern)
        putchar('\n');
 }
 
-static void list_common_cmds_help()
+static void list_common_cmds_help(void)
 {
        int i, longest = 0;
 
@@ -281,43 +283,29 @@ static int cmd_log(int argc, const char **argv, char **envp)
        struct rev_info rev;
        struct commit *commit;
        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 ";
+       int shown = 0;
 
        argc = setup_revisions(argc, argv, &rev, "HEAD");
-       while (1 < argc) {
-               const char *arg = argv[1];
-               if (!strncmp(arg, "--pretty", 8)) {
-                       commit_format = get_commit_format(arg + 8);
-                       if (commit_format == CMIT_FMT_ONELINE)
-                               commit_prefix = "";
-               }
-               else if (!strcmp(arg, "--parents")) {
-                       show_parents = 1;
-               }
-               else if (!strcmp(arg, "--no-abbrev")) {
-                       abbrev = 0;
-               }
-               else if (!strncmp(arg, "--abbrev=", 9)) {
-                       abbrev = strtoul(arg + 9, NULL, 10);
-                       if (abbrev && abbrev < MINIMUM_ABBREV)
-                               abbrev = MINIMUM_ABBREV;
-                       else if (40 < abbrev)
-                               abbrev = 40;
-               }
-               else
-                       die("unrecognized argument: %s", arg);
-               argc--; argv++;
-       }
+       if (argc > 1)
+               die("unrecognized argument: %s", argv[1]);
+
+       rev.no_commit_id = 1;
+       if (rev.commit_format == CMIT_FMT_ONELINE)
+               commit_prefix = "";
 
        prepare_revision_walk(&rev);
        setup_pager();
        while ((commit = get_revision(&rev)) != NULL) {
-               printf("%s%s", commit_prefix,
-                      sha1_to_hex(commit->object.sha1));
-               if (show_parents) {
+               if (shown && rev.diff && rev.commit_format != CMIT_FMT_ONELINE)
+                       putchar('\n');
+               fputs(commit_prefix, stdout);
+               if (rev.abbrev_commit && rev.abbrev)
+                       fputs(find_unique_abbrev(commit->object.sha1, rev.abbrev),
+                             stdout);
+               else
+                       fputs(sha1_to_hex(commit->object.sha1), stdout);
+               if (rev.parents) {
                        struct commit_list *parents = commit->parents;
                        while (parents) {
                                struct object *o = &(parents->item->object);
@@ -336,13 +324,18 @@ static int cmd_log(int argc, const char **argv, char **envp)
                             parents = parents->next)
                                parents->item->object.flags &= ~TMP_MARK;
                }
-               if (commit_format == CMIT_FMT_ONELINE)
+               if (rev.commit_format == CMIT_FMT_ONELINE)
                        putchar(' ');
                else
                        putchar('\n');
-               pretty_print_commit(commit_format, commit, ~0, buf,
-                                   LOGSIZE, abbrev);
+               pretty_print_commit(rev.commit_format, commit, ~0, buf,
+                                   LOGSIZE, rev.abbrev);
                printf("%s\n", buf);
+               if (rev.diff)
+                       log_tree_commit(&rev, commit);
+               shown = 1;
+               free(commit->buffer);
+               commit->buffer = NULL;
        }
        free(buf);
        return 0;