revert: extract actual revert in its own function
With this small refactoring, the computation of the action to perform and the
actual change to the disk happen in different function. This allows extension to
wrap the later in case of need. The initial motivation is the `remotefilelog`
extension that need to prefetch all the file content to be checked out.
Tests whether or not hgwebdir properly handles various symlink topologies.
$ "$TESTDIR/hghave" serve symlink || exit 80
hide outer repo
$ hg init
$ hg init a
$ echo a > a/a
$ hg --cwd a ci -Ama -d'1 0'
adding a
$ mkdir webdir
$ cd webdir
$ hg init b
$ echo b > b/b
$ hg --cwd b ci -Amb -d'2 0'
adding b
$ hg init c
$ echo c > c/c
$ hg --cwd c ci -Amc -d'3 0'
adding c
$ ln -s ../a al
$ ln -s ../webdir circle
$ root=`pwd`
$ cd ..
$ cat > collections.conf <<EOF
> [collections]
> $root=$root
> EOF
$ hg serve -p $HGPORT -d --pid-file=hg.pid --webdir-conf collections.conf \
> -A access-collections.log -E error-collections.log
$ cat hg.pid >> $DAEMON_PIDS
should succeed
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT '?style=raw'
200 Script output follows
/al/
/b/
/c/
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'al/file/tip/a?style=raw'
200 Script output follows
a
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'b/file/tip/b?style=raw'
200 Script output follows
b
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'c/file/tip/c?style=raw'
200 Script output follows
c
should fail
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'circle/al/file/tip/a?style=raw'
404 Not Found
error: repository circle/al/file/tip/a not found
[1]
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'circle/b/file/tip/a?style=raw'
404 Not Found
error: repository circle/b/file/tip/a not found
[1]
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'circle/c/file/tip/a?style=raw'
404 Not Found
error: repository circle/c/file/tip/a not found
[1]
collections errors
$ cat error-collections.log