tests/test-mq-qrefresh-replace-log-message

convert: readd --filemap

To handle merges correctly, this revision adds a filemap_source class
that wraps a converter_source and does the work necessary to calculate
the subgraph we're interested in.

The wrapped converter_source must provide a new getchangedfiles method
that, given a revision rev, and an index N, returns the list of files
that are different in rev and its Nth parent.

The implementation depends on the ability to skip some revisions and to
change the parents field of the commit objects that we returned earlier.

To make the conversion restartable, we assume the revisons in the
revmapfile are topologically sorted.

#!/bin/sh

# Environement setup for MQ
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH

#Repo init
hg init
hg qinit

echo =======================
echo "Should fail if no patches applied"
hg qrefresh
hg qrefresh -e

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