Merge branch 'pb/commit-where'
authorJunio C Hamano <gitster@pobox.com>
Sat, 18 Oct 2008 14:07:23 +0000 (07:07 -0700)
committerJunio C Hamano <gitster@pobox.com>
Sat, 18 Oct 2008 14:07:23 +0000 (07:07 -0700)
* pb/commit-where:
tutorial: update output of git commit
reformat informational commit message
git commit: Reformat output somewhat
builtin-commit.c: show on which branch a commit was added

1  2 
builtin-commit.c
diff --combined builtin-commit.c
index a2755dc3befeb5ed768f692ee58e5147ad933e26,f2e32a830e2b58c5cb87053a4591a031d9104466..2c33af276671ff0ba4bffee437a03e7fc2a7fae2
@@@ -448,7 -448,7 +448,7 @@@ static int prepare_to_commit(const cha
  {
        struct stat statbuf;
        int commitable, saved_color_setting;
 -      struct strbuf sb;
 +      struct strbuf sb = STRBUF_INIT;
        char *buffer;
        FILE *fp;
        const char *hook_arg1 = NULL;
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
  
 -      strbuf_init(&sb, 0);
        if (message.len) {
                strbuf_addbuf(&sb, &message);
                hook_arg1 = "message";
                stripspace(&sb, 0);
  
        if (signoff) {
 -              struct strbuf sob;
 +              struct strbuf sob = STRBUF_INIT;
                int i;
  
 -              strbuf_init(&sob, 0);
                strbuf_addstr(&sob, sign_off_header);
                strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
                                             getenv("GIT_COMMITTER_EMAIL")));
                active_cache_tree = cache_tree();
        if (cache_tree_update(active_cache_tree,
                              active_cache, active_nr, 0, 0) < 0) {
 -              error("Error building trees");
 +              error("Error building trees; the index is unmerged?");
                return 0;
        }
  
  }
  
  /*
 - * Find out if the message starting at position 'start' in the strbuf
 - * contains only whitespace and Signed-off-by lines.
 + * Find out if the message in the strbuf contains only whitespace and
 + * Signed-off-by lines.
   */
 -static int message_is_empty(struct strbuf *sb, int start)
 +static int message_is_empty(struct strbuf *sb)
  {
 -      struct strbuf tmpl;
 +      struct strbuf tmpl = STRBUF_INIT;
        const char *nl;
 -      int eol, i;
 +      int eol, i, start = 0;
  
        if (cleanup_mode == CLEANUP_NONE && sb->len)
                return 0;
  
        /* See if the template is just a prefix of the message. */
 -      strbuf_init(&tmpl, 0);
        if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
                stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
                if (start + tmpl.len <= sb->len &&
@@@ -879,6 -882,9 +879,9 @@@ static void print_summary(const char *p
  {
        struct rev_info rev;
        struct commit *commit;
+       static const char *format = "format:%h: \"%s\"";
+       unsigned char junk_sha1[20];
+       const char *head = resolve_ref("HEAD", junk_sha1, 0, NULL);
  
        commit = lookup_commit(sha1);
        if (!commit)
  
        rev.verbose_header = 1;
        rev.show_root_diff = 1;
-       get_commit_format("format:%h: %s", &rev);
+       get_commit_format(format, &rev);
        rev.always_show_header = 0;
        rev.diffopt.detect_rename = 1;
        rev.diffopt.rename_limit = 100;
        rev.diffopt.break_opt = 0;
        diff_setup_done(&rev.diffopt);
  
-       printf("Created %scommit ", initial_commit ? "initial " : "");
+       printf("[%s%s]: created ",
+               !prefixcmp(head, "refs/heads/") ?
+                       head + 11 :
+                       !strcmp(head, "HEAD") ?
+                               "detached HEAD" :
+                               head,
+               initial_commit ? " (root-commit)" : "");
  
        if (!log_tree_commit(&rev, commit)) {
                struct strbuf buf = STRBUF_INIT;
-               format_commit_message(commit, "%h: %s", &buf, DATE_NORMAL);
+               format_commit_message(commit, format + 7, &buf, DATE_NORMAL);
                printf("%s\n", buf.buf);
                strbuf_release(&buf);
        }
@@@ -926,14 -938,34 +935,14 @@@ static const char commit_utf8_warn[] 
  "You may want to amend it after fixing the message, or set the config\n"
  "variable i18n.commitencoding to the encoding your project uses.\n";
  
 -static void add_parent(struct strbuf *sb, const unsigned char *sha1)
 -{
 -      struct object *obj = parse_object(sha1);
 -      const char *parent = sha1_to_hex(sha1);
 -      const char *cp;
 -
 -      if (!obj)
 -              die("Unable to find commit parent %s", parent);
 -      if (obj->type != OBJ_COMMIT)
 -              die("Parent %s isn't a proper commit", parent);
 -
 -      for (cp = sb->buf; cp && (cp = strstr(cp, "\nparent ")); cp += 8) {
 -              if (!memcmp(cp + 8, parent, 40) && cp[48] == '\n') {
 -                      error("duplicate parent %s ignored", parent);
 -                      return;
 -              }
 -      }
 -      strbuf_addf(sb, "parent %s\n", parent);
 -}
 -
  int cmd_commit(int argc, const char **argv, const char *prefix)
  {
 -      int header_len;
 -      struct strbuf sb;
 +      struct strbuf sb = STRBUF_INIT;
        const char *index_file, *reflog_msg;
        char *nl, *p;
        unsigned char commit_sha1[20];
        struct ref_lock *ref_lock;
 +      struct commit_list *parents = NULL, **pptr = &parents;
  
        git_config(git_commit_config, NULL);
  
                return 1;
        }
  
 -      /*
 -       * The commit object
 -       */
 -      strbuf_init(&sb, 0);
 -      strbuf_addf(&sb, "tree %s\n",
 -                  sha1_to_hex(active_cache_tree->sha1));
 -
        /* Determine parents */
        if (initial_commit) {
                reflog_msg = "commit (initial)";
                        die("could not parse HEAD commit");
  
                for (c = commit->parents; c; c = c->next)
 -                      add_parent(&sb, c->item->object.sha1);
 +                      pptr = &commit_list_insert(c->item, pptr)->next;
        } else if (in_merge) {
 -              struct strbuf m;
 +              struct strbuf m = STRBUF_INIT;
                FILE *fp;
  
                reflog_msg = "commit (merge)";
 -              add_parent(&sb, head_sha1);
 -              strbuf_init(&m, 0);
 +              pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
                fp = fopen(git_path("MERGE_HEAD"), "r");
                if (fp == NULL)
                        die("could not open %s for reading: %s",
                        unsigned char sha1[20];
                        if (get_sha1_hex(m.buf, sha1) < 0)
                                die("Corrupt MERGE_HEAD file (%s)", m.buf);
 -                      add_parent(&sb, sha1);
 +                      pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
                }
                fclose(fp);
                strbuf_release(&m);
        } else {
                reflog_msg = "commit";
 -              strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1));
 +              pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
        }
 -
 -      strbuf_addf(&sb, "author %s\n",
 -                  fmt_ident(author_name, author_email, author_date, IDENT_ERROR_ON_NO_NAME));
 -      strbuf_addf(&sb, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
 -      if (!is_encoding_utf8(git_commit_encoding))
 -              strbuf_addf(&sb, "encoding %s\n", git_commit_encoding);
 -      strbuf_addch(&sb, '\n');
 +      parents = reduce_heads(parents);
  
        /* Finally, get the commit message */
 -      header_len = sb.len;
        if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
                rollback_index_files();
                die("could not read commit message");
  
        if (cleanup_mode != CLEANUP_NONE)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
 -      if (sb.len < header_len || message_is_empty(&sb, header_len)) {
 +      if (message_is_empty(&sb)) {
                rollback_index_files();
                fprintf(stderr, "Aborting commit due to empty commit message.\n");
                exit(1);
        }
 -      strbuf_addch(&sb, '\0');
 -      if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf))
 -              fprintf(stderr, commit_utf8_warn);
  
 -      if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) {
 +      if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
 +                      fmt_ident(author_name, author_email, author_date,
 +                              IDENT_ERROR_ON_NO_NAME))) {
                rollback_index_files();
                die("failed to write commit object");
        }
                                           initial_commit ? NULL : head_sha1,
                                           0);
  
 -      nl = strchr(sb.buf + header_len, '\n');
 +      nl = strchr(sb.buf, '\n');
        if (nl)
                strbuf_setlen(&sb, nl + 1 - sb.buf);
        else
                strbuf_addch(&sb, '\n');
 -      strbuf_remove(&sb, 0, header_len);
        strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
        strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);