compare_diff_raw expect actual
'
+###
+### series V (checkpoint)
+###
+
+# The commands in input_file should not produce any output on the file
+# descriptor set with --cat-blob-fd (or stdout if unspecified).
+#
+# To make sure you're observing the side effects of checkpoint *before*
+# fast-import terminates (and thus writes out its state), check that the
+# fast-import process is still running using background_import_still_running
+# *after* evaluating the test conditions.
+background_import_then_checkpoint () {
+ options=$1
+ input_file=$2
+
+ mkfifo V.input
+ exec 8<>V.input
+ rm V.input
+
+ mkfifo V.output
+ exec 9<>V.output
+ rm V.output
+
+ git fast-import $options <&8 >&9 &
+ echo $! >V.pid
+ # We don't mind if fast-import has already died by the time the test
+ # ends.
+ test_when_finished "exec 8>&-; exec 9>&-; kill $(cat V.pid) || true"
+
+ # Start in the background to ensure we adhere strictly to (blocking)
+ # pipes writing sequence. We want to assume that the write below could
+ # block, e.g. if fast-import blocks writing its own output to &9
+ # because there is no reader on &9 yet.
+ (
+ cat "$input_file"
+ echo "checkpoint"
+ echo "progress checkpoint"
+ ) >&8 &
+
+ error=1 ;# assume the worst
+ while read output <&9
+ do
+ if test "$output" = "progress checkpoint"
+ then
+ error=0
+ break
+ fi
+ # otherwise ignore cruft
+ echo >&2 "cruft: $output"
+ done
+
+ if test $error -eq 1
+ then
+ false
+ fi
+}
+
+background_import_still_running () {
+ if ! kill -0 "$(cat V.pid)"
+ then
+ echo >&2 "background fast-import terminated too early"
+ false
+ fi
+}
+
+test_expect_success PIPE 'V: checkpoint helper does not get stuck with extra output' '
+ cat >input <<-INPUT_END &&
+ progress foo
+ progress bar
+
+ INPUT_END
+
+ background_import_then_checkpoint "" input &&
+ background_import_still_running
+'
+
+test_expect_success PIPE 'V: checkpoint updates refs after reset' '
+ cat >input <<-\INPUT_END &&
+ reset refs/heads/V
+ from refs/heads/U
+
+ INPUT_END
+
+ background_import_then_checkpoint "" input &&
+ test "$(git rev-parse --verify V)" = "$(git rev-parse --verify U)" &&
+ background_import_still_running
+'
+
+test_expect_success PIPE 'V: checkpoint updates refs and marks after commit' '
+ cat >input <<-INPUT_END &&
+ commit refs/heads/V
+ mark :1
+ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data 0
+ from refs/heads/U
+
+ INPUT_END
+
+ background_import_then_checkpoint "--export-marks=marks.actual" input &&
+
+ echo ":1 $(git rev-parse --verify V)" >marks.expected &&
+
+ test "$(git rev-parse --verify V^)" = "$(git rev-parse --verify U)" &&
+ test_cmp marks.expected marks.actual &&
+ background_import_still_running
+'
+
+# Re-create the exact same commit, but on a different branch: no new object is
+# created in the database, but the refs and marks still need to be updated.
+test_expect_success PIPE 'V: checkpoint updates refs and marks after commit (no new objects)' '
+ cat >input <<-INPUT_END &&
+ commit refs/heads/V2
+ mark :2
+ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data 0
+ from refs/heads/U
+
+ INPUT_END
+
+ background_import_then_checkpoint "--export-marks=marks.actual" input &&
+
+ echo ":2 $(git rev-parse --verify V2)" >marks.expected &&
+
+ test "$(git rev-parse --verify V2)" = "$(git rev-parse --verify V)" &&
+ test_cmp marks.expected marks.actual &&
+ background_import_still_running
+'
+
+test_expect_success PIPE 'V: checkpoint updates tags after tag' '
+ cat >input <<-INPUT_END &&
+ tag Vtag
+ from refs/heads/V
+ tagger $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data 0
+
+ INPUT_END
+
+ background_import_then_checkpoint "" input &&
+ git show-ref -d Vtag &&
+ background_import_still_running
+'
+
test_done