fast-export: add a --show-original-ids option to show original names

diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 6a392e87bcc17712961c548c0ee84e11269aef0f..5690fe28106624f3d666ccdda1dbcdd58673fb13 100755 (executable)
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -66,6 +66,34 @@ test_expect_success 'fast-export master~2..master' '
 
 '
 
+test_expect_success 'fast-export --reference-excluded-parents master~2..master' '
+
+       git fast-export --reference-excluded-parents master~2..master >actual &&
+       grep commit.refs/heads/master actual >commit-count &&
+       test_line_count = 2 commit-count &&
+       sed "s/master/rewrite/" actual |
+               (cd new &&
+                git fast-import &&
+                test $MASTER = $(git rev-parse --verify refs/heads/rewrite))
+'
+
+test_expect_success 'fast-export --show-original-ids' '
+
+       git fast-export --show-original-ids master >output &&
+       grep ^original-oid output| sed -e s/^original-oid.// | sort >actual &&
+       git rev-list --objects master muss >objects-and-names &&
+       awk "{print \$1}" objects-and-names | sort >commits-trees-blobs &&
+       comm -23 actual commits-trees-blobs >unfound &&
+       test_must_be_empty unfound
+'
+
+test_expect_success 'fast-export --show-original-ids | git fast-import' '
+
+       git fast-export --show-original-ids master muss | git fast-import --quiet &&
+       test $MASTER = $(git rev-parse --verify refs/heads/master) &&
+       test $MUSS = $(git rev-parse --verify refs/tags/muss)
+'
+
 test_expect_success 'iso-8859-1' '
 
        git config i18n.commitencoding ISO8859-1 &&
@@ -325,6 +353,22 @@ test_expect_success 'rewriting tag of filtered out object' '
 )
 '
 
+test_expect_success 'rewrite tag predating pathspecs to nothing' '
+       test_create_repo rewrite_tag_predating_pathspecs &&
+       (
+               cd rewrite_tag_predating_pathspecs &&
+
+               test_commit initial &&
+
+               git tag -a -m "Some old tag" v0.0.0.0.0.0.1 &&
+
+               test_commit bar &&
+
+               git fast-export --tag-of-filtered-object=rewrite --all -- bar.t >output &&
+               grep from.$ZERO_OID output
+       )
+'
+
 cat > limit-by-paths/expected << EOF
 blob
 mark :1
@@ -366,6 +410,26 @@ test_expect_success 'path limiting with import-marks does not lose unmodified fi
        grep file0 actual
 '
 
+test_expect_success 'avoid corrupt stream with non-existent mark' '
+       test_create_repo avoid_non_existent_mark &&
+       (
+               cd avoid_non_existent_mark &&
+
+               test_commit important-path &&
+
+               test_commit ignored &&
+
+               git branch A &&
+               git branch B &&
+
+               echo foo >>important-path.t &&
+               git add important-path.t &&
+               test_commit more changes &&
+
+               git fast-export --all -- important-path.t | git fast-import --force
+       )
+'
+
 test_expect_success 'full-tree re-shows unmodified files'        '
        git checkout -f simple &&
        git fast-export --full-tree simple >actual &&
@@ -508,10 +572,20 @@ test_expect_success 'use refspec' '
        test_cmp expected actual
 '
 
-test_expect_success 'delete refspec' '
+test_expect_success 'delete ref because entire history excluded' '
        git branch to-delete &&
-       git fast-export --refspec :refs/heads/to-delete to-delete ^to-delete > actual &&
-       cat > expected <<-EOF &&
+       git fast-export to-delete ^to-delete >actual &&
+       cat >expected <<-EOF &&
+       reset refs/heads/to-delete
+       from 0000000000000000000000000000000000000000
+
+       EOF
+       test_cmp expected actual
+'
+
+test_expect_success 'delete refspec' '
+       git fast-export --refspec :refs/heads/to-delete >actual &&
+       cat >expected <<-EOF &&
        reset refs/heads/to-delete
        from 0000000000000000000000000000000000000000