Merge branch 'jl/fetch-submodule-recursive' into maint
[gitweb.git] / t / t9300-fast-import.sh
index 513db86ad28227b5264b16a659802c5c59bbd0ea..986bc14d58c30201e75f3d95d9b8245e997b99e9 100755 (executable)
@@ -7,6 +7,23 @@ test_description='test git fast-import utility'
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
 
+# Print $1 bytes from stdin to stdout.
+#
+# This could be written as "head -c $1", but IRIX "head" does not
+# support the -c option.
+head_c () {
+       perl -e '
+               my $len = $ARGV[1];
+               while ($len > 0) {
+                       my $s;
+                       my $nread = sysread(STDIN, $s, $len);
+                       die "cannot read: $!" unless defined($nread);
+                       print $s;
+                       $len -= $nread;
+               }
+       ' - "$1"
+}
+
 file2_data='file2
 second line of EOF'
 
@@ -23,11 +40,18 @@ file5_data='an inline file.
 file6_data='#!/bin/sh
 echo "$@"'
 
+>empty
+
 ###
 ### series A
 ###
 
 test_tick
+
+test_expect_success 'empty stream succeeds' '
+       git fast-import </dev/null
+'
+
 cat >input <<INPUT_END
 blob
 mark :2
@@ -166,6 +190,63 @@ test_expect_success \
         test `git rev-parse --verify master:file2` \
            = `git rev-parse --verify verify--import-marks:copy-of-file2`'
 
+test_tick
+mt=$(git hash-object --stdin < /dev/null)
+: >input.blob
+: >marks.exp
+: >tree.exp
+
+cat >input.commit <<EOF
+commit refs/heads/verify--dump-marks
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+test the sparse array dumping routines with exponentially growing marks
+COMMIT
+EOF
+
+i=0
+l=4
+m=6
+n=7
+while test "$i" -lt 27; do
+    cat >>input.blob <<EOF
+blob
+mark :$l
+data 0
+blob
+mark :$m
+data 0
+blob
+mark :$n
+data 0
+EOF
+    echo "M 100644 :$l l$i" >>input.commit
+    echo "M 100644 :$m m$i" >>input.commit
+    echo "M 100644 :$n n$i" >>input.commit
+
+    echo ":$l $mt" >>marks.exp
+    echo ":$m $mt" >>marks.exp
+    echo ":$n $mt" >>marks.exp
+
+    printf "100644 blob $mt\tl$i\n" >>tree.exp
+    printf "100644 blob $mt\tm$i\n" >>tree.exp
+    printf "100644 blob $mt\tn$i\n" >>tree.exp
+
+    l=$(($l + $l))
+    m=$(($m + $m))
+    n=$(($l + $n))
+
+    i=$((1 + $i))
+done
+
+sort tree.exp > tree.exp_s
+
+test_expect_success 'A: export marks with large values' '
+       cat input.blob input.commit | git fast-import --export-marks=marks.large &&
+       git ls-tree refs/heads/verify--dump-marks >tree.out &&
+       test_cmp tree.exp_s tree.out &&
+       test_cmp marks.exp marks.large'
+
 ###
 ### series B
 ###
@@ -264,7 +345,7 @@ test_expect_success \
        'for p in .git/objects/pack/*.pack;do git verify-pack $p||exit;done'
 test_expect_success \
        'C: validate reuse existing blob' \
-       'test $newf = `git rev-parse --verify branch:file2/newf`
+       'test $newf = `git rev-parse --verify branch:file2/newf` &&
         test $oldf = `git rev-parse --verify branch:file2/oldf`'
 
 cat >expect <<EOF
@@ -796,6 +877,231 @@ test_expect_success \
        'git fast-import <input &&
         test `git rev-parse N2^{tree}` = `git rev-parse N3^{tree}`'
 
+test_expect_success \
+       'N: copy directory by id' \
+       'cat >expect <<-\EOF &&
+       :100755 100755 f1fb5da718392694d0076d677d6d0e364c79b0bc f1fb5da718392694d0076d677d6d0e364c79b0bc C100   file2/newf      file3/newf
+       :100644 100644 7123f7f44e39be127c5eb701e5968176ee9d78b1 7123f7f44e39be127c5eb701e5968176ee9d78b1 C100   file2/oldf      file3/oldf
+       EOF
+        subdir=$(git rev-parse refs/heads/branch^0:file2) &&
+        cat >input <<-INPUT_END &&
+       commit refs/heads/N4
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy by tree hash
+       COMMIT
+
+       from refs/heads/branch^0
+       M 040000 $subdir file3
+       INPUT_END
+        git fast-import <input &&
+        git diff-tree -C --find-copies-harder -r N4^ N4 >actual &&
+        compare_diff_raw expect actual'
+
+test_expect_success \
+       'N: copy root directory by tree hash' \
+       'cat >expect <<-\EOF &&
+       :100755 000000 f1fb5da718392694d0076d677d6d0e364c79b0bc 0000000000000000000000000000000000000000 D      file3/newf
+       :100644 000000 7123f7f44e39be127c5eb701e5968176ee9d78b1 0000000000000000000000000000000000000000 D      file3/oldf
+       EOF
+        root=$(git rev-parse refs/heads/branch^0^{tree}) &&
+        cat >input <<-INPUT_END &&
+       commit refs/heads/N6
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy root directory by tree hash
+       COMMIT
+
+       from refs/heads/branch^0
+       M 040000 $root ""
+       INPUT_END
+        git fast-import <input &&
+        git diff-tree -C --find-copies-harder -r N4 N6 >actual &&
+        compare_diff_raw expect actual'
+
+test_expect_success \
+       'N: delete directory by copying' \
+       'cat >expect <<-\EOF &&
+       OBJID
+       :100644 000000 OBJID OBJID D    foo/bar/qux
+       OBJID
+       :000000 100644 OBJID OBJID A    foo/bar/baz
+       :000000 100644 OBJID OBJID A    foo/bar/qux
+       EOF
+        empty_tree=$(git mktree </dev/null) &&
+        cat >input <<-INPUT_END &&
+       commit refs/heads/N-delete
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       collect data to be deleted
+       COMMIT
+
+       deleteall
+       M 100644 inline foo/bar/baz
+       data <<DATA_END
+       hello
+       DATA_END
+       C "foo/bar/baz" "foo/bar/qux"
+       C "foo/bar/baz" "foo/bar/quux/1"
+       C "foo/bar/baz" "foo/bar/quuux"
+       M 040000 $empty_tree foo/bar/quux
+       M 040000 $empty_tree foo/bar/quuux
+
+       commit refs/heads/N-delete
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       delete subdirectory
+       COMMIT
+
+       M 040000 $empty_tree foo/bar/qux
+       INPUT_END
+        git fast-import <input &&
+        git rev-list N-delete |
+               git diff-tree -r --stdin --root --always |
+               sed -e "s/$_x40/OBJID/g" >actual &&
+        test_cmp expect actual'
+
+test_expect_success \
+       'N: modify copied tree' \
+       'cat >expect <<-\EOF &&
+       :100644 100644 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 C100   newdir/interesting      file3/file5
+       :100755 100755 f1fb5da718392694d0076d677d6d0e364c79b0bc f1fb5da718392694d0076d677d6d0e364c79b0bc C100   file2/newf      file3/newf
+       :100644 100644 7123f7f44e39be127c5eb701e5968176ee9d78b1 7123f7f44e39be127c5eb701e5968176ee9d78b1 C100   file2/oldf      file3/oldf
+       EOF
+        subdir=$(git rev-parse refs/heads/branch^0:file2) &&
+        cat >input <<-INPUT_END &&
+       commit refs/heads/N5
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy by tree hash
+       COMMIT
+
+       from refs/heads/branch^0
+       M 040000 $subdir file3
+
+       commit refs/heads/N5
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       modify directory copy
+       COMMIT
+
+       M 644 inline file3/file5
+       data <<EOF
+       $file5_data
+       EOF
+       INPUT_END
+        git fast-import <input &&
+        git diff-tree -C --find-copies-harder -r N5^^ N5 >actual &&
+        compare_diff_raw expect actual'
+
+test_expect_success \
+       'N: reject foo/ syntax' \
+       'subdir=$(git rev-parse refs/heads/branch^0:file2) &&
+        test_must_fail git fast-import <<-INPUT_END
+       commit refs/heads/N5B
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy with invalid syntax
+       COMMIT
+
+       from refs/heads/branch^0
+       M 040000 $subdir file3/
+       INPUT_END'
+
+test_expect_success \
+       'N: copy to root by id and modify' \
+       'echo "hello, world" >expect.foo &&
+        echo hello >expect.bar &&
+        git fast-import <<-SETUP_END &&
+       commit refs/heads/N7
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       hello, tree
+       COMMIT
+
+       deleteall
+       M 644 inline foo/bar
+       data <<EOF
+       hello
+       EOF
+       SETUP_END
+
+        tree=$(git rev-parse --verify N7:) &&
+        git fast-import <<-INPUT_END &&
+       commit refs/heads/N8
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy to root by id and modify
+       COMMIT
+
+       M 040000 $tree ""
+       M 644 inline foo/foo
+       data <<EOF
+       hello, world
+       EOF
+       INPUT_END
+        git show N8:foo/foo >actual.foo &&
+        git show N8:foo/bar >actual.bar &&
+        test_cmp expect.foo actual.foo &&
+        test_cmp expect.bar actual.bar'
+
+test_expect_success \
+       'N: extract subtree' \
+       'branch=$(git rev-parse --verify refs/heads/branch^{tree}) &&
+        cat >input <<-INPUT_END &&
+       commit refs/heads/N9
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       extract subtree branch:newdir
+       COMMIT
+
+       M 040000 $branch ""
+       C "newdir" ""
+       INPUT_END
+        git fast-import <input &&
+        git diff --exit-code branch:newdir N9'
+
+test_expect_success \
+       'N: modify subtree, extract it, and modify again' \
+       'echo hello >expect.baz &&
+        echo hello, world >expect.qux &&
+        git fast-import <<-SETUP_END &&
+       commit refs/heads/N10
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       hello, tree
+       COMMIT
+
+       deleteall
+       M 644 inline foo/bar/baz
+       data <<EOF
+       hello
+       EOF
+       SETUP_END
+
+        tree=$(git rev-parse --verify N10:) &&
+        git fast-import <<-INPUT_END &&
+       commit refs/heads/N11
+       committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+       data <<COMMIT
+       copy to root by id and modify
+       COMMIT
+
+       M 040000 $tree ""
+       M 100644 inline foo/bar/qux
+       data <<EOF
+       hello, world
+       EOF
+       R "foo" ""
+       C "bar/qux" "bar/quux"
+       INPUT_END
+        git show N11:bar/baz >actual.baz &&
+        git show N11:bar/qux >actual.qux &&
+        git show N11:bar/quux >actual.quux &&
+        test_cmp expect.baz actual.baz &&
+        test_cmp expect.qux actual.qux &&
+        test_cmp expect.qux actual.quux'
+
 ###
 ### series O
 ###
@@ -999,11 +1305,10 @@ test_expect_success \
        'P: supermodule & submodule mix' \
        'git fast-import <input &&
         git checkout subuse1 &&
-        rm -rf sub && mkdir sub && cd sub &&
+        rm -rf sub && mkdir sub && (cd sub &&
         git init &&
         git fetch --update-head-ok .. refs/heads/sub:refs/heads/master &&
-        git checkout master &&
-        cd .. &&
+        git checkout master) &&
         git submodule init &&
         git submodule update'
 
@@ -1092,9 +1397,12 @@ test_expect_success 'P: fail on blob mark in gitlink' '
 ### series Q (notes)
 ###
 
-note1_data="Note for the first commit"
-note2_data="Note for the second commit"
-note3_data="Note for the third commit"
+note1_data="The first note for the first commit"
+note2_data="The first note for the second commit"
+note3_data="The first note for the third commit"
+note1b_data="The second note for the first commit"
+note1c_data="The third note for the first commit"
+note2b_data="The second note for the second commit"
 
 test_tick
 cat >input <<INPUT_END
@@ -1169,7 +1477,45 @@ data <<EOF
 $note3_data
 EOF
 
+commit refs/notes/foobar
+mark :10
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+notes (:10)
+COMMIT
+
+N inline :3
+data <<EOF
+$note1b_data
+EOF
+
+commit refs/notes/foobar2
+mark :11
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+notes (:11)
+COMMIT
+
+N inline :3
+data <<EOF
+$note1c_data
+EOF
+
+commit refs/notes/foobar
+mark :12
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+notes (:12)
+COMMIT
+
+deleteall
+N inline :5
+data <<EOF
+$note2b_data
+EOF
+
 INPUT_END
+
 test_expect_success \
        'Q: commit notes' \
        'git fast-import <input &&
@@ -1224,8 +1570,8 @@ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
 notes (:9)
 EOF
 test_expect_success \
-       'Q: verify notes commit' \
-       'git cat-file commit refs/notes/foobar | sed 1d >actual &&
+       'Q: verify first notes commit' \
+       'git cat-file commit refs/notes/foobar~2 | sed 1d >actual &&
        test_cmp expect actual'
 
 cat >expect.unsorted <<EOF
@@ -1235,24 +1581,518 @@ cat >expect.unsorted <<EOF
 EOF
 cat expect.unsorted | sort >expect
 test_expect_success \
-       'Q: verify notes tree' \
-       'git cat-file -p refs/notes/foobar^{tree} | sed "s/ [0-9a-f]*   / /" >actual &&
+       'Q: verify first notes tree' \
+       'git cat-file -p refs/notes/foobar~2^{tree} | sed "s/ [0-9a-f]* / /" >actual &&
         test_cmp expect actual'
 
 echo "$note1_data" >expect
 test_expect_success \
-       'Q: verify note for first commit' \
-       'git cat-file blob refs/notes/foobar:$commit1 >actual && test_cmp expect actual'
+       'Q: verify first note for first commit' \
+       'git cat-file blob refs/notes/foobar~2:$commit1 >actual && test_cmp expect actual'
 
 echo "$note2_data" >expect
 test_expect_success \
-       'Q: verify note for second commit' \
-       'git cat-file blob refs/notes/foobar:$commit2 >actual && test_cmp expect actual'
+       'Q: verify first note for second commit' \
+       'git cat-file blob refs/notes/foobar~2:$commit2 >actual && test_cmp expect actual'
+
+echo "$note3_data" >expect
+test_expect_success \
+       'Q: verify first note for third commit' \
+       'git cat-file blob refs/notes/foobar~2:$commit3 >actual && test_cmp expect actual'
+
+cat >expect <<EOF
+parent `git rev-parse --verify refs/notes/foobar~2`
+author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+
+notes (:10)
+EOF
+test_expect_success \
+       'Q: verify second notes commit' \
+       'git cat-file commit refs/notes/foobar^ | sed 1d >actual &&
+       test_cmp expect actual'
+
+cat >expect.unsorted <<EOF
+100644 blob $commit1
+100644 blob $commit2
+100644 blob $commit3
+EOF
+cat expect.unsorted | sort >expect
+test_expect_success \
+       'Q: verify second notes tree' \
+       'git cat-file -p refs/notes/foobar^^{tree} | sed "s/ [0-9a-f]*  / /" >actual &&
+        test_cmp expect actual'
+
+echo "$note1b_data" >expect
+test_expect_success \
+       'Q: verify second note for first commit' \
+       'git cat-file blob refs/notes/foobar^:$commit1 >actual && test_cmp expect actual'
+
+echo "$note2_data" >expect
+test_expect_success \
+       'Q: verify first note for second commit' \
+       'git cat-file blob refs/notes/foobar^:$commit2 >actual && test_cmp expect actual'
 
 echo "$note3_data" >expect
 test_expect_success \
-       'Q: verify note for third commit' \
-       'git cat-file blob refs/notes/foobar:$commit3 >actual && test_cmp expect actual'
+       'Q: verify first note for third commit' \
+       'git cat-file blob refs/notes/foobar^:$commit3 >actual && test_cmp expect actual'
+
+cat >expect <<EOF
+author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+
+notes (:11)
+EOF
+test_expect_success \
+       'Q: verify third notes commit' \
+       'git cat-file commit refs/notes/foobar2 | sed 1d >actual &&
+       test_cmp expect actual'
+
+cat >expect.unsorted <<EOF
+100644 blob $commit1
+EOF
+cat expect.unsorted | sort >expect
+test_expect_success \
+       'Q: verify third notes tree' \
+       'git cat-file -p refs/notes/foobar2^{tree} | sed "s/ [0-9a-f]*  / /" >actual &&
+        test_cmp expect actual'
+
+echo "$note1c_data" >expect
+test_expect_success \
+       'Q: verify third note for first commit' \
+       'git cat-file blob refs/notes/foobar2:$commit1 >actual && test_cmp expect actual'
+
+cat >expect <<EOF
+parent `git rev-parse --verify refs/notes/foobar^`
+author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+
+notes (:12)
+EOF
+test_expect_success \
+       'Q: verify fourth notes commit' \
+       'git cat-file commit refs/notes/foobar | sed 1d >actual &&
+       test_cmp expect actual'
+
+cat >expect.unsorted <<EOF
+100644 blob $commit2
+EOF
+cat expect.unsorted | sort >expect
+test_expect_success \
+       'Q: verify fourth notes tree' \
+       'git cat-file -p refs/notes/foobar^{tree} | sed "s/ [0-9a-f]*   / /" >actual &&
+        test_cmp expect actual'
+
+echo "$note2b_data" >expect
+test_expect_success \
+       'Q: verify second note for second commit' \
+       'git cat-file blob refs/notes/foobar:$commit2 >actual && test_cmp expect actual'
+
+###
+### series R (feature and option)
+###
+
+cat >input <<EOF
+feature no-such-feature-exists
+EOF
+
+test_expect_success 'R: abort on unsupported feature' '
+       test_must_fail git fast-import <input
+'
+
+cat >input <<EOF
+feature date-format=now
+EOF
+
+test_expect_success 'R: supported feature is accepted' '
+       git fast-import <input
+'
+
+cat >input << EOF
+blob
+data 3
+hi
+feature date-format=now
+EOF
+
+test_expect_success 'R: abort on receiving feature after data command' '
+       test_must_fail git fast-import <input
+'
+
+cat >input << EOF
+feature import-marks=git.marks
+feature import-marks=git2.marks
+EOF
+
+test_expect_success 'R: only one import-marks feature allowed per stream' '
+       test_must_fail git fast-import <input
+'
+
+cat >input << EOF
+feature export-marks=git.marks
+blob
+mark :1
+data 3
+hi
+
+EOF
+
+test_expect_success \
+    'R: export-marks feature results in a marks file being created' \
+    'cat input | git fast-import &&
+    grep :1 git.marks'
+
+test_expect_success \
+    'R: export-marks options can be overriden by commandline options' \
+    'cat input | git fast-import --export-marks=other.marks &&
+    grep :1 other.marks'
+
+cat >input << EOF
+feature import-marks=marks.out
+feature export-marks=marks.new
+EOF
+
+test_expect_success \
+    'R: import to output marks works without any content' \
+    'cat input | git fast-import &&
+    test_cmp marks.out marks.new'
+
+cat >input <<EOF
+feature import-marks=nonexistant.marks
+feature export-marks=marks.new
+EOF
+
+test_expect_success \
+    'R: import marks prefers commandline marks file over the stream' \
+    'cat input | git fast-import --import-marks=marks.out &&
+    test_cmp marks.out marks.new'
+
+
+cat >input <<EOF
+feature import-marks=nonexistant.marks
+feature export-marks=combined.marks
+EOF
+
+test_expect_success 'R: multiple --import-marks= should be honoured' '
+    head -n2 marks.out > one.marks &&
+    tail -n +3 marks.out > two.marks &&
+    git fast-import --import-marks=one.marks --import-marks=two.marks <input &&
+    test_cmp marks.out combined.marks
+'
+
+cat >input <<EOF
+feature relative-marks
+feature import-marks=relative.in
+feature export-marks=relative.out
+EOF
+
+test_expect_success 'R: feature relative-marks should be honoured' '
+    mkdir -p .git/info/fast-import/ &&
+    cp marks.new .git/info/fast-import/relative.in &&
+    git fast-import <input &&
+    test_cmp marks.new .git/info/fast-import/relative.out
+'
+
+cat >input <<EOF
+feature relative-marks
+feature import-marks=relative.in
+feature no-relative-marks
+feature export-marks=non-relative.out
+EOF
+
+test_expect_success 'R: feature no-relative-marks should be honoured' '
+    git fast-import <input &&
+    test_cmp marks.new non-relative.out
+'
+
+test_expect_success 'R: feature cat-blob supported' '
+       echo "feature cat-blob" |
+       git fast-import
+'
+
+test_expect_success 'R: cat-blob-fd must be a nonnegative integer' '
+       test_must_fail git fast-import --cat-blob-fd=-1 </dev/null
+'
+
+test_expect_success 'R: print old blob' '
+       blob=$(echo "yes it can" | git hash-object -w --stdin) &&
+       cat >expect <<-EOF &&
+       ${blob} blob 11
+       yes it can
+
+       EOF
+       echo "cat-blob $blob" |
+       git fast-import --cat-blob-fd=6 6>actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'R: in-stream cat-blob-fd not respected' '
+       echo hello >greeting &&
+       blob=$(git hash-object -w greeting) &&
+       cat >expect <<-EOF &&
+       ${blob} blob 6
+       hello
+
+       EOF
+       git fast-import --cat-blob-fd=3 3>actual.3 >actual.1 <<-EOF &&
+       cat-blob $blob
+       EOF
+       test_cmp expect actual.3 &&
+       test_cmp empty actual.1 &&
+       git fast-import 3>actual.3 >actual.1 <<-EOF &&
+       option cat-blob-fd=3
+       cat-blob $blob
+       EOF
+       test_cmp empty actual.3 &&
+       test_cmp expect actual.1
+'
+
+test_expect_success 'R: print new blob' '
+       blob=$(echo "yep yep yep" | git hash-object --stdin) &&
+       cat >expect <<-EOF &&
+       ${blob} blob 12
+       yep yep yep
+
+       EOF
+       git fast-import --cat-blob-fd=6 6>actual <<-\EOF &&
+       blob
+       mark :1
+       data <<BLOB_END
+       yep yep yep
+       BLOB_END
+       cat-blob :1
+       EOF
+       test_cmp expect actual
+'
+
+test_expect_success 'R: print new blob by sha1' '
+       blob=$(echo "a new blob named by sha1" | git hash-object --stdin) &&
+       cat >expect <<-EOF &&
+       ${blob} blob 25
+       a new blob named by sha1
+
+       EOF
+       git fast-import --cat-blob-fd=6 6>actual <<-EOF &&
+       blob
+       data <<BLOB_END
+       a new blob named by sha1
+       BLOB_END
+       cat-blob $blob
+       EOF
+       test_cmp expect actual
+'
+
+test_expect_success 'setup: big file' '
+       (
+               echo "the quick brown fox jumps over the lazy dog" >big &&
+               for i in 1 2 3
+               do
+                       cat big big big big >bigger &&
+                       cat bigger bigger bigger bigger >big ||
+                       exit
+               done
+       )
+'
+
+test_expect_success 'R: print two blobs to stdout' '
+       blob1=$(git hash-object big) &&
+       blob1_len=$(wc -c <big) &&
+       blob2=$(echo hello | git hash-object --stdin) &&
+       {
+               echo ${blob1} blob $blob1_len &&
+               cat big &&
+               cat <<-EOF
+
+               ${blob2} blob 6
+               hello
+
+               EOF
+       } >expect &&
+       {
+               cat <<-\END_PART1 &&
+                       blob
+                       mark :1
+                       data <<data_end
+               END_PART1
+               cat big &&
+               cat <<-\EOF
+                       data_end
+                       blob
+                       mark :2
+                       data <<data_end
+                       hello
+                       data_end
+                       cat-blob :1
+                       cat-blob :2
+               EOF
+       } |
+       git fast-import >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'setup: have pipes?' '
+       rm -f frob &&
+       if mkfifo frob
+       then
+               test_set_prereq PIPE
+       fi
+'
+
+test_expect_success PIPE 'R: copy using cat-file' '
+       expect_id=$(git hash-object big) &&
+       expect_len=$(wc -c <big) &&
+       echo $expect_id blob $expect_len >expect.response &&
+
+       rm -f blobs &&
+       cat >frontend <<-\FRONTEND_END &&
+       #!/bin/sh
+       FRONTEND_END
+
+       mkfifo blobs &&
+       (
+               export GIT_COMMITTER_NAME GIT_COMMITTER_EMAIL GIT_COMMITTER_DATE &&
+               cat <<-\EOF &&
+               feature cat-blob
+               blob
+               mark :1
+               data <<BLOB
+               EOF
+               cat big &&
+               cat <<-\EOF &&
+               BLOB
+               cat-blob :1
+               EOF
+
+               read blob_id type size <&3 &&
+               echo "$blob_id $type $size" >response &&
+               head_c $size >blob <&3 &&
+               read newline <&3 &&
+
+               cat <<-EOF &&
+               commit refs/heads/copied
+               committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+               data <<COMMIT
+               copy big file as file3
+               COMMIT
+               M 644 inline file3
+               data <<BLOB
+               EOF
+               cat blob &&
+               echo BLOB
+       ) 3<blobs |
+       git fast-import --cat-blob-fd=3 3>blobs &&
+       git show copied:file3 >actual &&
+       test_cmp expect.response response &&
+       test_cmp big actual
+'
+
+test_expect_success PIPE 'R: print blob mid-commit' '
+       rm -f blobs &&
+       echo "A blob from _before_ the commit." >expect &&
+       mkfifo blobs &&
+       (
+               exec 3<blobs &&
+               cat <<-EOF &&
+               feature cat-blob
+               blob
+               mark :1
+               data <<BLOB
+               A blob from _before_ the commit.
+               BLOB
+               commit refs/heads/temporary
+               committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+               data <<COMMIT
+               Empty commit
+               COMMIT
+               cat-blob :1
+               EOF
+
+               read blob_id type size <&3 &&
+               head_c $size >actual <&3 &&
+               read newline <&3 &&
+
+               echo
+       ) |
+       git fast-import --cat-blob-fd=3 3>blobs &&
+       test_cmp expect actual
+'
+
+test_expect_success PIPE 'R: print staged blob within commit' '
+       rm -f blobs &&
+       echo "A blob from _within_ the commit." >expect &&
+       mkfifo blobs &&
+       (
+               exec 3<blobs &&
+               cat <<-EOF &&
+               feature cat-blob
+               commit refs/heads/within
+               committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+               data <<COMMIT
+               Empty commit
+               COMMIT
+               M 644 inline within
+               data <<BLOB
+               A blob from _within_ the commit.
+               BLOB
+               EOF
+
+               to_get=$(
+                       echo "A blob from _within_ the commit." |
+                       git hash-object --stdin
+               ) &&
+               echo "cat-blob $to_get" &&
+
+               read blob_id type size <&3 &&
+               head_c $size >actual <&3 &&
+               read newline <&3 &&
+
+               echo deleteall
+       ) |
+       git fast-import --cat-blob-fd=3 3>blobs &&
+       test_cmp expect actual
+'
+
+cat >input << EOF
+option git quiet
+blob
+data 3
+hi
+
+EOF
+
+test_expect_success 'R: quiet option results in no stats being output' '
+    cat input | git fast-import 2> output &&
+    test_cmp empty output
+'
+
+cat >input <<EOF
+option git non-existing-option
+EOF
+
+test_expect_success 'R: die on unknown option' '
+    test_must_fail git fast-import <input
+'
+
+test_expect_success 'R: unknown commandline options are rejected' '\
+    test_must_fail git fast-import --non-existing-option < /dev/null
+'
+
+test_expect_success 'R: die on invalid option argument' '
+       echo "option git active-branches=-5" |
+       test_must_fail git fast-import &&
+       echo "option git depth=" |
+       test_must_fail git fast-import &&
+       test_must_fail git fast-import --depth="5 elephants" </dev/null
+'
+
+cat >input <<EOF
+option non-existing-vcs non-existing-option
+EOF
+
+test_expect_success 'R: ignore non-git options' '
+    git fast-import <input
+'
 
 ##
 ## R: very large blobs