Teach fast-import to import subtrees named by tree id
To simulate the svn cp command, it would be very useful to be
replace an arbitrary file in the current revision by an
arbitrary directory from a previous one. Modify the filemodify
command to allow that:
M 040000 <tree id> pathname
This would be most useful in combination with a facility to
print the commit ids for new revisions as they are written.
Cc: Shawn O. Pearce <spearce@spearce.org>
Cc: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 131f032..50d5913 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -796,6 +796,60 @@
'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 $subdir file3
+ INPUT_END
+ git fast-import <input &&
+ git diff-tree -C --find-copies-harder -r N4^ N4 >actual &&
+ compare_diff_raw expect actual'
+
+test_expect_success \
+ 'N: modify copied tree' \
+ 'cat >expect <<-\EOF &&
+ :100644 100644 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 C100 newdir/interesting file3/file5
+ :100755 100755 f1fb5da718392694d0076d677d6d0e364c79b0bc f1fb5da718392694d0076d677d6d0e364c79b0bc C100 file2/newf file3/newf
+ :100644 100644 7123f7f44e39be127c5eb701e5968176ee9d78b1 7123f7f44e39be127c5eb701e5968176ee9d78b1 C100 file2/oldf file3/oldf
+ EOF
+ subdir=$(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'
+
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### series O
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