update-index: refuse to add working tree items beyond symlinks

diff --git a/builtin-commit.c b/builtin-commit.c
index 97e64de31228c254f0fe073494dd1f823070bf8e..b783e6eb46d2603d61d3260420c5dff48913d182 100644 (file)
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -68,8 +68,8 @@ static enum {
 static char *cleanup_arg;
 
 static int use_editor = 1, initial_commit, in_merge;
-const char *only_include_assumed;
-struct strbuf message;
+static const char *only_include_assumed;
+static struct strbuf message;
 
 static int opt_parse_m(const struct option *opt, const char *arg, int unset)
 {
@@ -78,8 +78,7 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
                strbuf_setlen(buf, 0);
        else {
                strbuf_addstr(buf, arg);
-               strbuf_addch(buf, '\n');
-               strbuf_addch(buf, '\n');
+               strbuf_addstr(buf, "\n\n");
        }
        return 0;
 }
@@ -555,13 +554,18 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
 
                fprintf(fp,
                        "\n"
-                       "# Please enter the commit message for your changes.\n"
-                       "# (Comment lines starting with '#' will ");
+                       "# Please enter the commit message for your changes.");
                if (cleanup_mode == CLEANUP_ALL)
-                       fprintf(fp, "not be included)\n");
+                       fprintf(fp,
+                               " Lines starting\n"
+                               "# with '#' will be ignored, and an empty"
+                               " message aborts the commit.\n");
                else /* CLEANUP_SPACE, that is. */
-                       fprintf(fp, "be kept.\n"
-                               "# You can remove them yourself if you want to)\n");
+                       fprintf(fp,
+                               " Lines starting\n"
+                               "# with '#' will be kept; you may remove them"
+                               " yourself if you want to.\n"
+                               "# An empty message aborts the commit.\n");
                if (only_include_assumed)
                        fprintf(fp, "# %s\n", only_include_assumed);
 
@@ -647,7 +651,11 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
                char index[PATH_MAX];
                const char *env[2] = { index, NULL };
                snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
-               launch_editor(git_path(commit_editmsg), NULL, env);
+               if (launch_editor(git_path(commit_editmsg), NULL, env)) {
+                       fprintf(stderr,
+                       "Please supply the message using either -m or -F option.\n");
+                       exit(1);
+               }
        }
 
        if (!no_verify &&
@@ -877,7 +885,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
        }
 }
 
-int git_commit_config(const char *k, const char *v, void *cb)
+static int git_commit_config(const char *k, const char *v, void *cb)
 {
        if (!strcmp(k, "commit.template"))
                return git_config_string(&template_file, k, v);
@@ -1000,7 +1008,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
        if (sb.len < header_len || message_is_empty(&sb, header_len)) {
                rollback_index_files();
-               die("no commit message?  aborting commit.");
+               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))