let pack-objects do the writing of unreachable objects as loose objects

diff --git a/fast-import.c b/fast-import.c
index 9b71ccc479352c6a37b9b9652f1cb1793fdbb01b..73e5439d97481a0e4dcaa17d025b27ec3fdcf41b 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -372,6 +372,8 @@ static void write_branch_report(FILE *rpt, struct branch *b)
        fputc('\n', rpt);
 }
 
+static void dump_marks_helper(FILE *, uintmax_t, struct mark_set *);
+
 static void write_crash_report(const char *err)
 {
        char *loc = git_path("fast_import_crash_%d", getpid());
@@ -430,12 +432,37 @@ static void write_crash_report(const char *err)
                        write_branch_report(rpt, b);
        }
 
+       if (first_tag) {
+               struct tag *tg;
+               fputc('\n', rpt);
+               fputs("Annotated Tags\n", rpt);
+               fputs("--------------\n", rpt);
+               for (tg = first_tag; tg; tg = tg->next_tag) {
+                       fputs(sha1_to_hex(tg->sha1), rpt);
+                       fputc(' ', rpt);
+                       fputs(tg->name, rpt);
+                       fputc('\n', rpt);
+               }
+       }
+
+       fputc('\n', rpt);
+       fputs("Marks\n", rpt);
+       fputs("-----\n", rpt);
+       if (mark_file)
+               fprintf(rpt, "  exported to %s\n", mark_file);
+       else
+               dump_marks_helper(rpt, 0, marks);
+
        fputc('\n', rpt);
        fputs("-------------------\n", rpt);
        fputs("END OF CRASH REPORT\n", rpt);
        fclose(rpt);
 }
 
+static void end_packfile(void);
+static void unkeep_all_packs(void);
+static void dump_marks(void);
+
 static NORETURN void die_nicely(const char *err, va_list params)
 {
        static int zombie;
@@ -449,6 +476,9 @@ static NORETURN void die_nicely(const char *err, va_list params)
        if (!zombie) {
                zombie = 1;
                write_crash_report(message);
+               end_packfile();
+               unkeep_all_packs();
+               dump_marks();
        }
        exit(128);
 }
@@ -1486,6 +1516,8 @@ static int update_branch(struct branch *b)
        struct ref_lock *lock;
        unsigned char old_sha1[20];
 
+       if (is_null_sha1(b->sha1))
+               return 0;
        if (read_ref(b->name, old_sha1))
                hashclr(old_sha1);
        lock = lock_any_ref_for_update(b->name, old_sha1, 0);
@@ -2261,7 +2293,8 @@ static void cmd_reset_branch(void)
        else
                b = new_branch(sp);
        read_next_command();
-       if (!cmd_from(b) && command_buf.len > 0)
+       cmd_from(b);
+       if (command_buf.len > 0)
                unread_command_buf = 1;
 }
 
@@ -2347,6 +2380,7 @@ int main(int argc, const char **argv)
 {
        unsigned int i, show_stats = 1;
 
+       setup_git_directory();
        git_config(git_pack_config);
        if (!pack_compression_seen && core_compression_seen)
                pack_compression_level = core_compression_level;