merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
#!/bin/sh
hg init test
cd test
cat >>afile <<EOF
0
EOF
hg add afile
hg commit -m "0.0" -d "1000000 0"
cat >>afile <<EOF
1
EOF
hg commit -m "0.1" -d "1000000 0"
cat >>afile <<EOF
2
EOF
hg commit -m "0.2" -d "1000000 0"
cat >>afile <<EOF
3
EOF
hg commit -m "0.3" -d "1000000 0"
hg update -C 0
cat >>afile <<EOF
1
EOF
hg commit -m "1.1" -d "1000000 0"
cat >>afile <<EOF
2
EOF
hg commit -m "1.2" -d "1000000 0"
cat >fred <<EOF
a line
EOF
cat >>afile <<EOF
3
EOF
hg add fred
hg commit -m "1.3" -d "1000000 0"
hg mv afile adifferentfile
hg commit -m "1.3m" -d "1000000 0"
hg update -C 3
hg mv afile anotherfile
hg commit -m "0.3m" -d "1000000 0"
hg debugindex .hg/store/data/afile.i
hg debugindex .hg/store/data/adifferentfile.i
hg debugindex .hg/store/data/anotherfile.i
hg debugindex .hg/store/data/fred.i
hg debugindex .hg/store/00manifest.i
hg verify
cd ..
for i in 0 1 2 3 4 5 6 7 8; do
mkdir test-"$i"
hg --cwd test-"$i" init
hg -R test bundle -r "$i" test-"$i".hg test-"$i"
cd test-"$i"
hg unbundle ../test-"$i".hg
hg verify
hg tip -q
cd ..
done
cd test-8
hg pull ../test-7
hg verify
hg rollback
cd ..
echo % should fail
hg -R test bundle --base 2 -r tip test-bundle-branch1.hg test-3
hg -R test bundle -r tip test-bundle-branch1.hg
hg -R test bundle --base 2 -r tip test-bundle-branch1.hg
hg -R test bundle --base 2 -r 7 test-bundle-branch2.hg
hg -R test bundle --base 2 test-bundle-all.hg
hg -R test bundle --base 3 -r tip test-bundle-should-fail.hg
# issue76 msg2163
hg -R test bundle --base 3 -r 3 -r 3 test-bundle-cset-3.hg
hg clone test-2 test-9
cd test-9
echo % 2
hg tip -q
hg unbundle ../test-bundle-should-fail.hg
echo % 2
hg tip -q
hg unbundle ../test-bundle-all.hg
echo % 8
hg tip -q
hg verify
hg rollback
echo % 2
hg tip -q
hg unbundle ../test-bundle-branch1.hg
echo % 4
hg tip -q
hg verify
hg rollback
hg unbundle ../test-bundle-branch2.hg
echo % 6
hg tip -q
hg verify
cd ../test
hg merge 7
hg ci -m merge -d "1000000 0"
cd ..
hg -R test bundle --base 2 test-bundle-head.hg
hg clone test-2 test-10
cd test-10
hg unbundle ../test-bundle-head.hg
echo % 9
hg tip -q
hg verify