discard revindex data when pack list changes

This is needed to fix verify-pack -v with multiple pack arguments.

Also, in theory, revindex data (if any) must be discarded whenever
reprepare_packed_git() is called. In practice this is hard to trigger
though.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-verify-pack.c b/builtin-verify-pack.c
index f4ac595..25a29f1 100644 (file)
--- a/builtin-verify-pack.c
+++ b/builtin-verify-pack.c
@@ -1,7 +1,7 @@
 #include "builtin.h"
 #include "cache.h"
 #include "pack.h"
-
+#include "pack-revindex.h"
 
 #define MAX_CHAIN 50
 
@@ -129,6 +129,7 @@ int cmd_verify_pack(int argc, const char **argv, const char *prefix)
                else {
                        if (verify_one_pack(argv[1], verbose))
                                err = 1;
+                       discard_revindex();
                        nothing_done = 0;
                }
                argc--; argv++;

diff --git a/pack-revindex.c b/pack-revindex.c
index cd300bd..6096b62 100644 (file)
--- a/pack-revindex.c
+++ b/pack-revindex.c
@@ -142,3 +142,15 @@ struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs)
        } while (lo < hi);
        die("internal error: pack revindex corrupt");
 }
+
+void discard_revindex(void)
+{
+       if (pack_revindex_hashsz) {
+               int i;
+               for (i = 0; i < pack_revindex_hashsz; i++)
+                       if (pack_revindex[i].revindex)
+                               free(pack_revindex[i].revindex);
+               free(pack_revindex);
+               pack_revindex_hashsz = 0;
+       }
+}

diff --git a/pack-revindex.h b/pack-revindex.h
index 36a514a..8d5027a 100644 (file)
--- a/pack-revindex.h
+++ b/pack-revindex.h
@@ -7,5 +7,6 @@ struct revindex_entry {
 };
 
 struct revindex_entry *find_pack_revindex(struct packed_git *p, off_t ofs);
+void discard_revindex(void);
 
 #endif

diff --git a/sha1_file.c b/sha1_file.c
index 32e4664..477d3fb 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -990,6 +990,7 @@ void prepare_packed_git(void)
 
 void reprepare_packed_git(void)
 {
+       discard_revindex();
        prepare_packed_git_run_once = 0;
        prepare_packed_git();
 }

diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index 645583f..83abe5f 100755 (executable)
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -187,6 +187,12 @@ test_expect_success \
                        test-3-${packname_3}.idx'
 
 test_expect_success \
+    'verify pack -v' \
+    'git verify-pack -v        test-1-${packname_1}.idx \
+                       test-2-${packname_2}.idx \
+                       test-3-${packname_3}.idx'
+
+test_expect_success \
     'verify-pack catches mismatched .idx and .pack files' \
     'cat test-1-${packname_1}.idx >test-3.idx &&
      cat test-2-${packname_2}.pack >test-3.pack &&