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
# This test tries to exercise the ssh functionality with a dummy script
cat <<EOF > dummyssh
import sys
import os
os.chdir(os.path.dirname(sys.argv[0]))
if sys.argv[1] != "user@dummy":
sys.exit(-1)
if not os.path.exists("dummyssh"):
sys.exit(-1)
log = open("dummylog", "ab")
log.write("Got arguments")
for i, arg in enumerate(sys.argv[1:]):
log.write(" %d:%s" % (i+1, arg))
log.write("\n")
log.close()
r = os.system(sys.argv[2])
sys.exit(bool(r))
EOF
checknewrepo()
{
name=$1
if [ -d $name/.hg/store ]; then
echo store created
fi
if [ -f $name/.hg/00changelog.i ]; then
echo 00changelog.i created
fi
cat $name/.hg/requires
}
echo "# creating 'local'"
hg init local
checknewrepo local
echo this > local/foo
hg ci --cwd local -A -m "init" -d "1000000 0"
echo "# creating repo with old format"
hg --config format.usestore=false init old
checknewrepo old
echo "#test failure"
hg init local
echo "# init+push to remote2"
hg init -e "python ./dummyssh" ssh://user@dummy/remote2
hg incoming -R remote2 local
hg push -R local -e "python ./dummyssh" ssh://user@dummy/remote2
echo "# clone to remote1"
hg clone -e "python ./dummyssh" local ssh://user@dummy/remote1
echo "# init to existing repo"
hg init -e "python ./dummyssh" ssh://user@dummy/remote1
echo "# clone to existing repo"
hg clone -e "python ./dummyssh" local ssh://user@dummy/remote1
echo "# output of dummyssh"
cat dummylog
echo "# comparing repositories"
hg tip -q -R local
hg tip -q -R remote1
hg tip -q -R remote2
echo "# check names for repositories (clashes with URL schemes, special chars)"
for i in bundle file hg http https old-http ssh static-http " " "with space"; do
echo "# hg init \"$i\""
hg init "$i"
test -d "$i" -a -d "$i/.hg" && echo "ok" || echo "failed"
done