#!/bin/bash
set -e
autoimport=
. tests/lib

t-dependencies NO-DGIT GDR

t-tstunt-parsechangelog
t-setup-import gdr-convert-gbp-noarchive

cd $p

: 'upstream hat'

t-gdr-prep-new-upstream 2.1

: 'maintainer hat'

git branch startpoint
v=2.1-1

git checkout master

t-expect-fail F:'Could not determine appropriate upstream commitish' \
t-git-debrebase new-upstream $v

git tag v2.1 upstream

git branch before-new-upstream

clog-check-1 () {
	before=$1
	date=$(git log --format=%aD -n1 debian/changelog)
	date=$(date -R -d "$date")
	git show $before:debian/changelog >../clog.before
	m="  * Update to new upstream version ${v%-*}."
	e="dgit test git user <dgit-test@debian.example.net>  $date"
}
clog-check-2 () {
	diff -u ../clog.expected debian/changelog
}

: ----- ordinary new upstream test -----

t-git-debrebase new-upstream ${v%-*}

clog-check-1 before-new-upstream
cat - <<END ../clog.before >../clog.expected
example ($v) UNRELEASED; urgency=medium

$m

 -- $e

END
clog-check-2

t-gdr-good laundered
git reflog | egrep 'debrebase new-upstream.*checkout'

t-git-debrebase stitch
t-gdr-good stitched

git branch ordinary

: ----- 'with --anchor' -----

git checkout -b with-anchor startpoint

t-git-debrebase analyse >../anal.anch
anchor=$(perl <../anal.anch -ne '
	next unless m/^(\w+) Anchor\s/;
	print $1,"\n";
	exit;
')

GIT_REFLOG_ACTION='STUNT-RLA' \
t-git-debrebase --anchor=$anchor -fanchor-treated new-upstream $v upstream
t-gdr-good laundered
git reflog | egrep 'STUNT-RLA: debrebase new-upstream'
git reflog | egrep 'STUNT-RLA: debrebase: launder for new upstream'

t-git-debrebase stitch
t-gdr-good stitched

git diff --quiet ordinary

: ----- with pre-existing changes -----

git checkout -b with-preexisting before-new-upstream

t-dch-commit drivel-in-changelog
git branch before-new-upstream-with-changes

t-git-next-date

t-git-debrebase new-upstream ${v%-*}

clog-check-1 before-new-upstream-with-changes
perl -pe <../clog.before >../clog.expected '
	BEGIN { ($m,$e,@ARGV) = @ARGV; }
	next unless 1..m/^ --/;
	s/\([^()]+\)/('$v')/ if m/^example /;
	$_ .= "$m\n" if m/^  \* drivel-in-changelog/;
	$_ = " -- $e\n" if m/^ -- /;
' "$m" "$e"
clog-check-2

t-ok