use 'x is None' instead of 'x == None'
The built-in None object is a singleton and it is therefore safe to
compare memory addresses with is. It is also faster, how much depends
on the object being compared. For a simple type like str I get:
| s = "foo" | s = None
----------+-----------+----------
s == None | 0.25 usec | 0.21 usec
s is None | 0.17 usec | 0.17 usec
#!/bin/sh
cat <<EOF >> $HGRCPATH
[extensions]
transplant=
EOF
hg init t
cd t
echo r1 > r1
hg ci -Amr1 -d'0 0'
echo r2 > r2
hg ci -Amr2 -d'1 0'
hg up 0
echo b1 > b1
hg ci -Amb1 -d '0 0'
echo b2 > b2
hg ci -Amb2 -d '1 0'
echo b3 > b3
hg ci -Amb3 -d '2 0'
hg log --template '{rev} {parents} {desc}\n'
hg clone . ../rebase
cd ../rebase
hg up -C 1
echo '% rebase b onto r1'
hg transplant -a -b tip
hg log --template '{rev} {parents} {desc}\n'
hg clone ../t ../prune
cd ../prune
hg up -C 1
echo '% rebase b onto r1, skipping b2'
hg transplant -a -b tip -p 3
hg log --template '{rev} {parents} {desc}\n'
echo '% remote transplant'
hg clone -r 1 ../t ../remote
cd ../remote
hg transplant --log -s ../t 2 4
hg log --template '{rev} {parents} {desc}\n'
echo '% skip previous transplants'
hg transplant -s ../t -a -b 4
hg log --template '{rev} {parents} {desc}\n'
echo '% skip local changes transplanted to the source'
echo b4 > b4
hg ci -Amb4 -d '3 0'
hg clone ../t ../pullback
cd ../pullback
hg transplant -s ../remote -a -b tip
echo '% remote transplant with pull'
hg -R ../t serve -p $HGPORT -d --pid-file=../t.pid
cat ../t.pid >> $DAEMON_PIDS
hg clone -r 0 ../t ../rp
cd ../rp
hg transplant -s http://localhost:$HGPORT/ 2 4
hg log --template '{rev} {parents} {desc}\n'
echo '% transplant --continue'
hg init ../tc
cd ../tc
cat <<EOF > foo
foo
bar
baz
EOF
echo toremove > toremove
hg ci -Amfoo
cat <<EOF > foo
foo2
bar2
baz2
EOF
rm toremove
echo added > added
hg ci -Amfoo2
echo bar > bar
hg ci -Ambar
echo bar2 >> bar
hg ci -mbar2
hg up 0
echo foobar > foo
hg ci -mfoobar
hg transplant 1:3
# transplant -c shouldn't use an old changeset
hg up -C
rm added
hg transplant 1
hg transplant --continue
hg transplant 1:3
hg locate
cd ..
# Test transplant --merge (issue 1111)
echo % test transplant merge
hg init t1111
cd t1111
echo a > a
hg ci -Am adda
echo b >> a
hg ci -m appendb
echo c >> a
hg ci -m appendc
hg up -C 0
echo d >> a
hg ci -m appendd
echo % tranplant
hg transplant -m 1
cd ..
echo '% test transplant into empty repository'
hg init empty
cd empty
hg transplant -s ../t -b tip -a
cd ..
echo '% test filter'
hg init filter
cd filter
cat <<'EOF' >test-filter
#!/bin/sh
sed 's/r1/r2/' $1 > $1.new
mv $1.new $1
EOF
chmod +x test-filter
hg transplant -s ../t -b tip -a --filter ./test-filter |\
sed 's/filtering.*/filtering/g'
hg log --template '{rev} {parents} {desc}\n'