subrepo: try remapping subpaths using the "final" path
Before, the right-hand side of a .hgsub entry was used, as is, to
match the left-hand side of a subpaths entry. This turned out to be
less useful than expected since a .hgsub file with
src/foo = src/foo
has little context to do remapping on. The new idea is therefore to
prefix the parent repo path *before* the remapping takes place.
If the parent repository path (as defined by _abssource) is
http://example.net/parent
then the remapping for the above .hgsub entry will be done on the
expanded path:
http://example.net/parent/src/foo
If this expanded path is not changed by the remapping, then we remap
src/foo
alone. This is the old behavior where the right-hand side is remapped
without context.
$ hg init outer
$ cd outer
$ echo '[paths]' >> .hg/hgrc
$ echo 'default = http://example.net/' >> .hg/hgrc
hg debugsub with no remapping
$ echo 'sub = libfoo' > .hgsub
$ hg add .hgsub
$ hg debugsub
path sub
source libfoo
revision
hg debugsub with remapping
$ echo '[subpaths]' >> .hg/hgrc
$ printf 'http://example.net/lib(.*) = C:\\libs\\\\1-lib\\\n' >> .hg/hgrc
$ hg debugsub
path sub
source C:\libs\foo-lib\
revision
test cumulative remapping, the $HGRCPATH file is loaded first
$ echo '[subpaths]' >> $HGRCPATH
$ echo 'libfoo = libbar' >> $HGRCPATH
$ hg debugsub
path sub
source C:\libs\bar-lib\
revision
test absolute source path -- testing with a URL is important since
standard os.path.join wont treat that as an absolute path
$ echo 'abs = http://example.net/abs' > .hgsub
$ hg debugsub
path abs
source http://example.net/abs
revision
$ echo 'abs = /abs' > .hgsub
$ hg debugsub
path abs
source /abs
revision
test bad subpaths pattern
$ cat > .hg/hgrc <<EOF
> [subpaths]
> .* = \1
> EOF
$ hg debugsub
abort: bad subrepository pattern in $TESTTMP/outer/.hg/hgrc:2: invalid group reference
[255]