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

  $ hg init master

  $ cd master

  $ cat >> .hg/hgrc <<EOF

  > [narrow]

  > serveellipses=True

  > EOF

  $ for x in `$TESTDIR/seq.py 10`

  > do

  >   echo $x > "f$x"

  >   hg add "f$x"

  > done

  $ hg commit -m "Add root files"

  $ mkdir d1 d2

  $ for x in `$TESTDIR/seq.py 10`

  > do

  >   echo d1/$x > "d1/f$x"

  >   hg add "d1/f$x"

  >   echo d2/$x > "d2/f$x"

  >   hg add "d2/f$x"

  > done

  $ hg commit -m "Add d1 and d2"

  $ for x in `$TESTDIR/seq.py 10`

  > do

  >   echo f$x rev2 > "f$x"

  >   echo d1/f$x rev2 > "d1/f$x"

  >   echo d2/f$x rev2 > "d2/f$x"

  >   hg commit -m "Commit rev2 of f$x, d1/f$x, d2/f$x"

  > done

  $ cd ..

narrow and shallow clone the d2 directory

  $ hg clone --narrow ssh://user@dummy/master shallow --include "d2" --depth 2

  requesting all changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 13 changes to 10 files

  new changesets *:* (glob)

  updating to branch default

  10 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd shallow

  $ hg log -T '{rev}{if(ellipsis,"...")}: {desc}\n'

  3: Commit rev2 of f10, d1/f10, d2/f10

  2: Commit rev2 of f9, d1/f9, d2/f9

  1: Commit rev2 of f8, d1/f8, d2/f8

  0...: Commit rev2 of f7, d1/f7, d2/f7

  $ hg update 0

  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cat d2/f7 d2/f8

  d2/f7 rev2

  d2/8

  $ cd ..

change every upstream file once

  $ cd master

  $ for x in `$TESTDIR/seq.py 10`

  > do

  >   echo f$x rev3 > "f$x"

  >   echo d1/f$x rev3 > "d1/f$x"

  >   echo d2/f$x rev3 > "d2/f$x"

  >   hg commit -m "Commit rev3 of f$x, d1/f$x, d2/f$x"

  > done

  $ cd ..

pull new changes with --depth specified. There were 10 changes to the d2

directory but the shallow pull should only fetch 3.

  $ cd shallow

  $ hg pull --depth 2

  pulling from ssh://user@dummy/master

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 4 changesets with 10 changes to 10 files

  new changesets *:* (glob)

  (run 'hg update' to get a working copy)

  $ hg log -T '{rev}{if(ellipsis,"...")}: {desc}\n'

  7: Commit rev3 of f10, d1/f10, d2/f10

  6: Commit rev3 of f9, d1/f9, d2/f9

  5: Commit rev3 of f8, d1/f8, d2/f8

  4...: Commit rev3 of f7, d1/f7, d2/f7

  3: Commit rev2 of f10, d1/f10, d2/f10

  2: Commit rev2 of f9, d1/f9, d2/f9

  1: Commit rev2 of f8, d1/f8, d2/f8

  0...: Commit rev2 of f7, d1/f7, d2/f7

  $ hg update 4

  merging d2/f1

  merging d2/f2

  merging d2/f3

  merging d2/f4

  merging d2/f5

  merging d2/f6

  merging d2/f7

  3 files updated, 7 files merged, 0 files removed, 0 files unresolved

  $ cat d2/f7 d2/f8

  d2/f7 rev3

  d2/f8 rev2

  $ hg update 7

  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cat d2/f10

  d2/f10 rev3

  $ cd ..

cannot clone with zero or negative depth

  $ hg clone --narrow ssh://user@dummy/master bad --include "d2" --depth 0

  requesting all changes

  remote: abort: depth must be positive, got 0

  abort: pull failed on remote

  [255]

  $ hg clone --narrow ssh://user@dummy/master bad --include "d2" --depth -1

  requesting all changes

  remote: abort: depth must be positive, got -1

  abort: pull failed on remote

  [255]