cvsexportcommit: add some examples to the documentation

diff --git a/commit.c b/commit.c
index e9a29caa27fbdd94810abbc4fd9c44e06c81265c..97205bfb2ceaf77c2b90552327c9a4a1de83a39d 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -1,6 +1,6 @@
+#include "cache.h"
 #include "tag.h"
 #include "commit.h"
-#include "cache.h"
 
 int save_commit_buffer = 1;
 
@@ -359,8 +359,10 @@ void clear_commit_marks(struct commit *commit, unsigned int mark)
        parents = commit->parents;
        commit->object.flags &= ~mark;
        while (parents) {
-               if (parents->item && parents->item->object.parsed)
-                       clear_commit_marks(parents->item, mark);
+               struct commit *parent = parents->item;
+               if (parent && parent->object.parsed &&
+                   (parent->object.flags & mark))
+                       clear_commit_marks(parent, mark);
                parents = parents->next;
        }
 }
@@ -424,33 +426,37 @@ static int is_empty_line(const char *line, int len)
        return !len;
 }
 
-static int add_parent_info(enum cmit_fmt fmt, char *buf, const char *line, int parents)
+static int add_merge_info(enum cmit_fmt fmt, char *buf, const struct commit *commit, int abbrev)
 {
-       int offset = 0;
+       struct commit_list *parent = commit->parents;
+       int offset;
 
-       if (fmt == CMIT_FMT_ONELINE)
-               return offset;
-       switch (parents) {
-       case 1:
-               break;
-       case 2:
-               /* Go back to the previous line: 40 characters of previous parent, and one '\n' */
-               offset = sprintf(buf, "Merge: %.40s\n", line-41);
-               /* Fallthrough */
-       default:
-               /* Replace the previous '\n' with a space */
-               buf[offset-1] = ' ';
-               offset += sprintf(buf + offset, "%.40s\n", line+7);
+       if ((fmt == CMIT_FMT_ONELINE) || !parent || !parent->next)
+               return 0;
+
+       offset = sprintf(buf, "Merge:");
+
+       while (parent) {
+               struct commit *p = parent->item;
+               parent = parent->next;
+
+               offset += sprintf(buf + offset,
+                                 abbrev ? " %s..." : " %s",
+                                 abbrev
+                                 ? find_unique_abbrev(p->object.sha1, abbrev)
+                                 : sha1_to_hex(p->object.sha1));
        }
+       buf[offset++] = '\n';
        return offset;
 }
 
-unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned long len, char *buf, unsigned long space)
+unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, unsigned long len, char *buf, unsigned long space, int abbrev)
 {
        int hdr = 1, body = 0;
        unsigned long offset = 0;
-       int parents = 0;
        int indent = (fmt == CMIT_FMT_ONELINE) ? 0 : 4;
+       int parents_shown = 0;
+       const char *msg = commit->buffer;
 
        for (;;) {
                const char *line = msg;
@@ -486,9 +492,15 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned l
                        if (!memcmp(line, "parent ", 7)) {
                                if (linelen != 48)
                                        die("bad parent line in commit");
-                               offset += add_parent_info(fmt, buf + offset, line, ++parents);
+                               continue;
                        }
 
+                       if (!parents_shown) {
+                               offset += add_merge_info(fmt, buf + offset,
+                                                        commit, abbrev);
+                               parents_shown = 1;
+                               continue;
+                       }
                        /*
                         * MEDIUM == DEFAULT shows only author with dates.
                         * FULL shows both authors but not dates.