actually port simplemerge to hg
- use bdiff instead of patiencediff; this is a larger change, since
bdiff works on 2 multi-line strings, while patiencediff works on 2
lists;
- rename the main class from Merge3 to Merge3Text and add a Merge3
class that derives from Merge3Text. This new Merge3 class has
the same interface from the original class, so that the tests
still work;
- Merge3 uses util.binary to detect binary data and raises
util.Abort instead of a specific exception;
- don't use the @decorator syntax, to keep python2.3 compatibility;
- the test uses unittest, which likes to print how long it took to
run. This obviously doesn't play too well with hg's test suite,
so we override time.time to fool unittest;
- one test has a different (but still valid) output because of the
different diff algorithm used;
- the TestCase class used by bzr has some extras to help debugging.
test-merge3.py used 2 of them:
- log method to log some data
- assertEqualDiff method to ease viewing diffs of diffs
We add a dummy log method and use regular assertEquals instead of
assertEqualDiff.
- make simplemerge executable and add "#!/usr/bin/env python" header
#!/bin/sh
hg init a
mkdir a/d1
mkdir a/d1/d2
echo line 1 > a/a
echo line 1 > a/d1/d2/a
hg --cwd a ci -d '0 0' -Ama
echo line 2 >> a/a
hg --cwd a ci -u someone -d '1 0' -m'second change'
echo % import exported patch
hg clone -r0 a b
hg --cwd a export tip > tip.patch
hg --cwd b import ../tip.patch
echo % message should be same
hg --cwd b tip | grep 'second change'
echo % committer should be same
hg --cwd b tip | grep someone
rm -r b
echo % import of plain diff should fail without message
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import ../tip.patch
rm -r b
echo % import of plain diff should be ok with message
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
hg --cwd b import -mpatch ../tip.patch
rm -r b
echo % hg -R repo import
# put the clone in a subdir - having a directory named "a"
# used to hide a bug.
mkdir dir
hg clone -r0 a dir/b
hg --cwd a export tip > dir/tip.patch
cd dir
hg -R b import tip.patch
cd ..
rm -r dir
echo % import from stdin
hg clone -r0 a b
hg --cwd a export tip | hg --cwd b import -
rm -r b
echo % override commit message
hg clone -r0 a b
hg --cwd a export tip | hg --cwd b import -m 'override' -
hg --cwd b tip | grep override
rm -r b
cat > mkmsg.py <<EOF
import email.Message, sys
msg = email.Message.Message()
msg.set_payload('email commit message\n' + open('tip.patch').read())
msg['Subject'] = 'email patch'
msg['From'] = 'email patcher'
sys.stdout.write(msg.as_string())
EOF
echo % plain diff in email, subject, message body
hg clone -r0 a b
hg --cwd a diff -r0:1 > tip.patch
python mkmsg.py > msg.patch
hg --cwd b import ../msg.patch
hg --cwd b tip | grep email
rm -r b
echo % plain diff in email, no subject, message body
hg clone -r0 a b
grep -v '^Subject:' msg.patch | hg --cwd b import -
rm -r b
echo % plain diff in email, subject, no message body
hg clone -r0 a b
grep -v '^email ' msg.patch | hg --cwd b import -
rm -r b
echo % plain diff in email, no subject, no message body, should fail
hg clone -r0 a b
egrep -v '^(Subject|email)' msg.patch | hg --cwd b import -
rm -r b
echo % hg export in email, should use patch header
hg clone -r0 a b
hg --cwd a export tip > tip.patch
python mkmsg.py | hg --cwd b import -
hg --cwd b tip | grep second
rm -r b
# bug non regression test
# importing a patch in a subdirectory failed at the commit stage
echo line 2 >> a/d1/d2/a
hg --cwd a ci -u someoneelse -d '1 0' -m'subdir change'
echo % hg import in a subdirectory
hg clone -r0 a b
hg --cwd a export tip | sed -e 's/d1\/d2\///' > tip.patch
dir=`pwd`
cd b/d1/d2 2>&1 > /dev/null
hg import ../../../tip.patch
cd $dir
echo "% message should be 'subdir change'"
hg --cwd b tip | grep 'subdir change'
echo "% committer should be 'someoneelse'"
hg --cwd b tip | grep someoneelse
echo "% should be empty"
hg --cwd b status