tests/test-subrepo-paths.t

narrow: widen when files are excluded by sparse and not included by narrow

In a repo where some directories are included by narrow and the complement are
excluded by sparse, it was previously impossible to widen either because trying
to widen narrow would complain that the requested files are outside the sparse
checkout and trying to widen sparse would complain that the requested files are
outside the narrow checkout.

This changes the `hg tracked --addinclude` command to only actually update any
newly accessible files in the dirstate if they are also accessible via sparse.

Differential Revision: https://phab.mercurial-scm.org/D10734

  $ 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* (glob)
  [255]

  $ cd ..