Merge branch 'jk/repack-pack-keep-objects'

* jk/repack-pack-keep-objects:
  repack: add `repack.packKeptObjects` config var

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 79e5768..73c8973 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2156,6 +2156,13 @@ repack.usedeltabaseoffset::
        "false" and repack. Access from old Git versions over the
        native protocol are unaffected by this option.
 
+repack.packKeptObjects::
+       If set to true, makes `git repack` act as if
+       `--pack-kept-objects` was passed. See linkgit:git-repack[1] for
+       details. Defaults to `false` normally, but `true` if a bitmap
+       index is being written (either via `--write-bitmap-index` or
+       `pack.writeBitmaps`).
+
 rerere.autoupdate::
        When set to true, `git-rerere` updates the index with the
        resulting contents after it cleanly resolves conflicts using

diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt
index 002cfd5..4786a78 100644 (file)
--- a/Documentation/git-repack.txt
+++ b/Documentation/git-repack.txt
@@ -117,6 +117,14 @@ other objects in that pack they already have locally.
        must be able to refer to all reachable objects. This option
        overrides the setting of `pack.writebitmaps`.
 
+--pack-kept-objects::
+       Include objects in `.keep` files when repacking.  Note that we
+       still do not delete `.keep` packs after `pack-objects` finishes.
+       This means that we may duplicate objects, but this makes the
+       option safe to use when there are concurrent pushes or fetches.
+       This option is generally only useful if you are writing bitmaps
+       with `-b` or `pack.writebitmaps`, as it ensures that the
+       bitmapped packfile has the necessary objects.
 
 Configuration
 -------------

diff --git a/builtin/repack.c b/builtin/repack.c
index 49f5857..6b0b62d 100644 (file)
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -9,6 +9,7 @@
 #include "argv-array.h"
 
 static int delta_base_offset = 1;
+static int pack_kept_objects = -1;
 static char *packdir, *packtmp;
 
 static const char *const git_repack_usage[] = {
@@ -22,6 +23,10 @@ static int repack_config(const char *var, const char *value, void *cb)
                delta_base_offset = git_config_bool(var, value);
                return 0;
        }
+       if (!strcmp(var, "repack.packkeptobjects")) {
+               pack_kept_objects = git_config_bool(var, value);
+               return 0;
+       }
        return git_default_config(var, value, cb);
 }
 
@@ -175,6 +180,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                                N_("limits the maximum delta depth")),
                OPT_STRING(0, "max-pack-size", &max_pack_size, N_("bytes"),
                                N_("maximum size of each packfile")),
+               OPT_BOOL(0, "pack-kept-objects", &pack_kept_objects,
+                               N_("repack objects in packs marked with .keep")),
                OPT_END()
        };
 
@@ -183,6 +190,9 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, builtin_repack_options,
                                git_repack_usage, 0);
 
+       if (pack_kept_objects < 0)
+               pack_kept_objects = write_bitmap;
+
        packdir = mkpathdup("%s/pack", get_object_directory());
        packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid());
 
@@ -190,7 +200,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 
        argv_array_push(&cmd_args, "pack-objects");
        argv_array_push(&cmd_args, "--keep-true-parents");
-       argv_array_push(&cmd_args, "--honor-pack-keep");
+       if (!pack_kept_objects)
+               argv_array_push(&cmd_args, "--honor-pack-keep");
        argv_array_push(&cmd_args, "--non-empty");
        argv_array_push(&cmd_args, "--all");
        argv_array_push(&cmd_args, "--reflog");

diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh
index b45bd1e..284018e 100755 (executable)
--- a/t/t7700-repack.sh
+++ b/t/t7700-repack.sh
@@ -21,7 +21,7 @@ test_expect_success 'objects in packs marked .keep are not repacked' '
        objsha1=$(git verify-pack -v pack-$packsha1.idx | head -n 1 |
                sed -e "s/^\([0-9a-f]\{40\}\).*/\1/") &&
        mv pack-* .git/objects/pack/ &&
-       git repack -A -d -l &&
+       git repack --no-pack-kept-objects -A -d -l &&
        git prune-packed &&
        for p in .git/objects/pack/*.idx; do
                idx=$(basename $p)
@@ -35,6 +35,22 @@ test_expect_success 'objects in packs marked .keep are not repacked' '
        test -z "$found_duplicate_object"
 '
 
+test_expect_success 'writing bitmaps can duplicate .keep objects' '
+       # build on $objsha1, $packsha1, and .keep state from previous
+       git repack -Adl &&
+       test_when_finished "found_duplicate_object=" &&
+       for p in .git/objects/pack/*.idx; do
+               idx=$(basename $p)
+               test "pack-$packsha1.idx" = "$idx" && continue
+               if git verify-pack -v $p | egrep "^$objsha1"; then
+                       found_duplicate_object=1
+                       echo "DUPLICATE OBJECT FOUND"
+                       break
+               fi
+       done &&
+       test "$found_duplicate_object" = 1
+'
+
 test_expect_success 'loose objects in alternate ODB are not repacked' '
        mkdir alt_objects &&
        echo `pwd`/alt_objects > .git/objects/info/alternates &&