Added option to export the marks table when fast-import terminates.

diff --git a/fast-import.c b/fast-import.c
index 311db4e6d52e9aeef69337001bced37518ae6882..d61da3adecd3c2725a05d65728f09ce5eb5c8c4d 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -223,6 +223,7 @@ static unsigned int object_entry_alloc = 1000;
 static struct object_entry_pool *blocks;
 static struct object_entry *object_table[1 << 16];
 static struct mark_set *marks;
+static const char* mark_file;
 
 /* Our last blob */
 static struct last_object last_blob;
@@ -1122,6 +1123,36 @@ static void dump_tags()
        }
 }
 
+static void dump_marks_helper(FILE *f,
+       unsigned long base,
+       struct mark_set *m)
+{
+       int k;
+       if (m->shift) {
+               for (k = 0; k < 1024; k++) {
+                       if (m->data.sets[k])
+                               dump_marks_helper(f, (base + k) << m->shift,
+                                       m->data.sets[k]);
+               }
+       } else {
+               for (k = 0; k < 1024; k++) {
+                       if (m->data.marked[k])
+                               fprintf(f, "%lu,%s\n", base + k,
+                                       sha1_to_hex(m->data.marked[k]->sha1));
+               }
+       }
+}
+
+static void dump_marks()
+{
+       if (mark_file)
+       {
+               FILE *f = fopen(mark_file, "w");
+               dump_marks_helper(f, 0, marks);
+               fclose(f);
+       }
+}
+
 static void read_next_command()
 {
        read_line(&command_buf, stdin, '\n');
@@ -1544,7 +1575,7 @@ static void cmd_new_tag()
 }
 
 static const char fast_import_usage[] =
-"git-fast-import [--objects=n] [--depth=n] [--active-branches=n] temp.pack";
+"git-fast-import [--objects=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file] temp.pack";
 
 int main(int argc, const char **argv)
 {
@@ -1569,6 +1600,8 @@ int main(int argc, const char **argv)
                        max_depth = strtoul(a + 8, NULL, 0);
                else if (!strncmp(a, "--active-branches=", 18))
                        max_active_branches = strtoul(a + 18, NULL, 0);
+               else if (!strncmp(a, "--export-marks=", 15))
+                       mark_file = a + 15;
                else
                        die("unknown option %s", a);
        }
@@ -1613,6 +1646,7 @@ int main(int argc, const char **argv)
        write_index(idx_name);
        dump_branches();
        dump_tags();
+       dump_marks();
 
        fprintf(stderr, "%s statistics:\n", argv[0]);
        fprintf(stderr, "---------------------------------------------------\n");