Correct optimization from 3464f5e77f34; add a test.
If there are two (or more) heads that point to the same .hgtags
node, we can safely skip parsing the file in all but the last head.
(In 3464f5e77f34, we were parsing the file in the first head and
skipping all the others.)
#!/bin/sh
# Environement setup for MQ
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
#Repo init
hg init
hg qinit
hg qnew -m "First commit message" first-patch
echo aaaa > file
hg add file
hg qrefresh
echo =======================
echo "Should display 'First commit message'"
hg log -l1 -v | sed -n '/description/,$p'
echo
# Testing changing message with -m
echo bbbb > file
hg qrefresh -m "Second commit message"
echo =======================
echo "Should display 'Second commit message'"
hg log -l1 -v | sed -n '/description/,$p'
echo
# Testing changing message with -l
echo "Third commit message" > logfile
echo " This is the 3rd log message" >> logfile
echo bbbb > file
hg qrefresh -l logfile
echo =======================
printf "Should display 'Third commit message\\\n This is the 3rd log message'\n"
hg log -l1 -v | sed -n '/description/,$p'
echo
# Testing changing message with -l-
hg qnew -m "First commit message" second-patch
echo aaaa > file2
hg add file2
echo bbbb > file2
(echo "Fifth commit message"
echo " This is the 5th log message" >> logfile) |\
hg qrefresh -l-
echo =======================
printf "Should display 'Fifth commit message\\\n This is the 5th log message'\n"
hg log -l1 -v | sed -n '/description/,$p'
echo