#require rhg

  $ NO_FALLBACK="env RHG_ON_UNSUPPORTED=abort"

Rhg works well when sparse working copy is enabled.

  $ cd "$TESTTMP"

  $ hg init repo-sparse

  $ cd repo-sparse

  $ cat > .hg/hgrc <<EOF

  > [extensions]

  > sparse=

  > EOF

  $ echo a > show

  $ echo x > hide

  $ mkdir dir1 dir2

  $ echo x > dir1/x

  $ echo y > dir1/y

  $ echo z > dir2/z

  $ hg ci -Aqm 'initial'

  $ hg debugsparse --include 'show'

  $ ls -A

  .hg

  show

  $ tip=$(hg log -r . --template '{node}')

  $ $NO_FALLBACK rhg files -r "$tip"

  dir1/x

  dir1/y

  dir2/z

  hide

  show

  $ $NO_FALLBACK rhg files

  show

  $ $NO_FALLBACK rhg cat -r "$tip" hide

  x

  $ cd ..

We support most things when narrow is enabled, too, with a couple of caveats.

  $ . "$TESTDIR/narrow-library.sh"

  $ real_hg=$RHG_FALLBACK_EXECUTABLE

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > narrow=

  > EOF

  $ hg clone --narrow  ./repo-sparse repo-narrow --include dir1

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 2 changes to 2 files

  new changesets 6d714a4a2998

  updating to branch default

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd repo-narrow

  $ $NO_FALLBACK rhg cat -r "$tip" dir1/x

  x

  $ "$real_hg" cat -r "$tip" dir1/x

  x

TODO: bad error message

  $ $NO_FALLBACK rhg cat -r "$tip" hide

  abort: invalid revision identifier: 6d714a4a2998cbfd0620db44da58b749f6565d63

  [255]

  $ "$real_hg" cat -r "$tip" hide

  [1]

A naive implementation of [rhg files] leaks the paths that are supposed to be

hidden by narrow, so we just fall back to hg.

  $ $NO_FALLBACK rhg files -r "$tip"

  unsupported feature: rhg files -r <rev> is not supported in narrow clones

  [252]

  $ "$real_hg" files -r "$tip"

  dir1/x

  dir1/y

Hg status needs to do some filtering based on narrow spec, so we don't

support it in rhg for narrow clones yet.

  $ mkdir dir2

  $ touch dir2/q

  $ "$real_hg" status

  $ $NO_FALLBACK rhg --config rhg.status=true status

  unsupported feature: rhg status is not supported for sparse checkouts or narrow clones yet

  [252]

Adding "orphaned" index files:

  $ (cd ..; cp repo-sparse/.hg/store/data/hide.i repo-narrow/.hg/store/data/hide.i)

  $ (cd ..; mkdir repo-narrow/.hg/store/data/dir2; cp repo-sparse/.hg/store/data/dir2/z.i repo-narrow/.hg/store/data/dir2/z.i)

  $ "$real_hg" verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checked 1 changesets with 2 changes to 2 files

  $ "$real_hg" files -r "$tip"

  dir1/x

  dir1/y

# TODO: even though [hg files] hides the orphaned dir2/z, [hg cat] still shows it.

# rhg has the same issue, but at least it's not specific to rhg.

# This is despite [hg verify] succeeding above.

  $ $NO_FALLBACK rhg cat -r "$tip" dir2/z

  z

  $ "$real_hg" cat -r "$tip" dir2/z

  z