tests/test-narrow-widen-linkrev-computation.t

tests: add a module that can perform the equivalent of `SIGKILL` on any OS

I started with this being Windows specific, but let's push all of the decision
making into this function so that it can just be called by the tests.  The
tradeoff is that this is very specific to sending `SIGKILL`- since
`signal.SIGKILL` doesn't exist on Windows, the desired signal can't be passed
from the caller.  Maybe there's a way, but let's wait until there's a need.

We don't use `killdaemons.py` unconditionally because it starts with a more
graceful `SIGTERM` on posix.

==============================================================================================
Test the computation of linkrev that is needed when sending file content after their changeset
==============================================================================================

Setup
=====

tree/flat make the hash unstable had are anoying, reinstall that later.
.. #testcases tree flat
  $ . "$TESTDIR/narrow-library.sh"

.. #if tree
..   $ cat << EOF >> $HGRCPATH
..   > [experimental]
..   > treemanifest = 1
..   > EOF
.. #endif

  $ hg init server
  $ cd server

We build a non linear history with some filenome that exist in parallel.

  $ echo foo > readme.txt
  $ hg add readme.txt
  $ hg ci -m 'root'
  $ mkdir dir_x
  $ echo foo > dir_x/f1
  $ echo fo0 > dir_x/f2
  $ echo f0o > dir_x/f3
  $ mkdir dir_y
  $ echo bar > dir_y/f1
  $ echo 8ar > dir_y/f2
  $ echo ba9 > dir_y/f3
  $ hg add dir_x dir_y
  adding dir_x/f1
  adding dir_x/f2
  adding dir_x/f3
  adding dir_y/f1
  adding dir_y/f2
  adding dir_y/f3
  $ hg ci -m 'rev_a_'

  $ hg update 'desc("rev_a_")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo foo-01 > dir_x/f1
  $ hg ci -m 'rev_b_0_'

  $ hg update 'desc("rev_b_0_")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo foo-02 > dir_x/f1
  $ hg ci -m 'rev_b_1_'

  $ hg update 'desc("rev_a_")'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkdir dir_z
  $ echo bar-01 > dir_y/f1
  $ echo 8ar-01 > dir_y/f2
  $ echo babar > dir_z/f1
  $ hg add dir_z
  adding dir_z/f1
  $ hg ci -m 'rev_c_0_'
  created new head

  $ hg update 'desc("rev_c_0_")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo celeste > dir_z/f2
  $ echo zephir > dir_z/f1
  $ hg add dir_z
  adding dir_z/f2
  $ hg ci -m 'rev_c_1_'

  $ hg update 'desc("rev_b_1_")'
  3 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo fo0-01 > dir_x/f2
  $ mkdir dir_z
  $ ls dir_z
  $ echo babar > dir_z/f1
  $ echo celeste > dir_z/f2
  $ echo foo > dir_z/f3
  $ hg add dir_z
  adding dir_z/f1
  adding dir_z/f2
  adding dir_z/f3
  $ hg ci -m 'rev_b_2_'

  $ hg update 'desc("rev_b_2_")'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo f0o-01 > dir_x/f3
  $ echo zephir > dir_z/f1
  $ echo arthur > dir_z/f2
  $ hg ci -m 'rev_b_3_'

  $ hg update 'desc("rev_c_1_")'
  6 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo bar-02 > dir_y/f1
  $ echo ba9-01 > dir_y/f3
  $ echo bar > dir_z/f4
  $ hg add dir_z/
  adding dir_z/f4
  $ echo arthur > dir_z/f2
  $ hg ci -m 'rev_c_2_'

  $ hg update 'desc("rev_b_3_")'
  7 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg merge 'desc("rev_c_2_")'
  4 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ echo flore > dir_z/f1
  $ echo foo-04 > dir_x/f1
  $ echo foo-01 > dir_z/f3
  $ hg ci -m 'rev_d_0_'
  $ echo alexandre > dir_z/f1
  $ echo bar-01 > dir_z/f4
  $ echo bar-04 > dir_y/f1
  $ hg ci -m 'rev_d_1_'
  $ hg status
  $ hg status -A
  C dir_x/f1
  C dir_x/f2
  C dir_x/f3
  C dir_y/f1
  C dir_y/f2
  C dir_y/f3
  C dir_z/f1
  C dir_z/f2
  C dir_z/f3
  C dir_z/f4
  C readme.txt
  $ hg up null
  0 files updated, 0 files merged, 11 files removed, 0 files unresolved

Resulting graph

  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  10:71e6a9c7a6a2: rev_d_1_
  |    dir_y/f1 dir_z/f1 dir_z/f4
  o    9:b0a0cbe5ce57: rev_d_0_
  |\     dir_x/f1 dir_z/f1 dir_z/f3
  | o  8:d04e01dcc82d: rev_c_2_
  | |    dir_y/f1 dir_y/f3 dir_z/f2 dir_z/f4
  o |  7:fc05b303b551: rev_b_3_
  | |    dir_x/f3 dir_z/f1 dir_z/f2
  o |  6:17fd34adb43b: rev_b_2_
  | |    dir_x/f2 dir_z/f1 dir_z/f2 dir_z/f3
  | o  5:fa05dbe8eed1: rev_c_1_
  | |    dir_z/f1 dir_z/f2
  | o  4:59b4258b00dc: rev_c_0_
  | |    dir_y/f1 dir_y/f2 dir_z/f1
  o |  3:328f8ced5276: rev_b_1_
  | |    dir_x/f1
  o |  2:0ccce83dd29b: rev_b_0_
  |/     dir_x/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

Useful save useful nodes :

  $ hg log -T '{node}' > ../rev_c_2_ --rev 'desc("rev_c_2_")'
  $ hg log -T '{node}' > ../rev_b_3_ --rev 'desc("rev_b_3_")'

Reference output

Since we have the same file conent on each side, we should get a limited number
of file revision (and the associated linkrev).

This these shared file-revision and the associated linkrev computation is
fueling the complexity test in this file.

  $ cat > ../linkrev-check.sh << EOF
  > echo '# expected linkrev for dir_z/f1'
  > hg log -T '0 {rev}\n' --rev 'min(desc(rev_b_2_) or desc(rev_c_0_))'
  > hg log -T '1 {rev}\n' --rev 'min(desc(rev_b_3_) or desc(rev_c_1_))'
  > hg log -T '2 {rev}\n' --rev 'min(desc(rev_d_0_))'
  > hg log -T '3 {rev}\n' --rev 'min(desc(rev_d_1_))'
  > hg debugindex dir_z/f1
  > #   rev linkrev       nodeid    p1-nodeid    p2-nodeid
  > #     0       4 360afd990eef 000000000000 000000000000
  > #     1       5 7054ee088631 360afd990eef 000000000000
  > #     2       9 6bb290463f21 7054ee088631 000000000000
  > #     3      10 91fec784ff86 6bb290463f21 000000000000
  > echo '# expected linkrev for dir_z/f2'
  > hg log -T '0 {rev}\n' --rev 'min(desc(rev_c_1_) or desc(rev_b_2_))'
  > hg log -T '1 {rev}\n' --rev 'min(desc(rev_c_2_) or desc(rev_b_3_))'
  > hg debugindex dir_z/f2
  > #    rev linkrev       nodeid    p1-nodeid    p2-nodeid
  > #      0       5 093bb0f8a0fb 000000000000 000000000000
  > #      1       7 0f47e254cb19 093bb0f8a0fb 000000000000
  > if hg files --rev tip | grep dir_z/f3 > /dev/null; then
  >     echo '# expected linkrev for dir_z/f3'
  >     hg log -T '0 {rev}\n' --rev 'desc(rev_b_2_)'
  >     hg log -T '1 {rev}\n' --rev 'desc(rev_d_0_)'
  >     hg debugindex dir_z/f3
  >     #    rev linkrev       nodeid    p1-nodeid    p2-nodeid
  >     #      0       6 2ed2a3912a0b 000000000000 000000000000
  >     #      1       9 7c6d649320ae 2ed2a3912a0b 000000000000
  > fi
  > if hg files --rev tip | grep dir_z/f4 > /dev/null; then
  >     echo '# expected linkrev for dir_z/f4'
  >     hg log -T '0 {rev}\n' --rev 'desc(rev_c_2_)'
  >     hg log -T '1 {rev}\n' --rev 'desc(rev_d_1_)'
  >     hg debugindex dir_z/f4
  >     #   rev linkrev       nodeid    p1-nodeid    p2-nodeid
  >     #     0       8 b004912a8510 000000000000 000000000000
  >     #     1      10 9f85b3b95e70 b004912a8510 000000000000
  > fi
  > echo '# verify the repository'
  > hg verify
  > EOF
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 4
  1 5
  2 9
  3 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 360afd990eef 000000000000 000000000000
       1       5 7054ee088631 360afd990eef 000000000000
       2       9 6bb290463f21 7054ee088631 000000000000
       3      10 91fec784ff86 6bb290463f21 000000000000
  # expected linkrev for dir_z/f2
  0 5
  1 7
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       5 093bb0f8a0fb 000000000000 000000000000
       1       7 0f47e254cb19 093bb0f8a0fb 000000000000
  # expected linkrev for dir_z/f3
  0 6
  1 9
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       6 2ed2a3912a0b 000000000000 000000000000
       1       9 7c6d649320ae 2ed2a3912a0b 000000000000
  # expected linkrev for dir_z/f4
  0 8
  1 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       8 b004912a8510 000000000000 000000000000
       1      10 9f85b3b95e70 b004912a8510 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 11 changesets with 27 changes to 11 files

  $ cd ..

Test linkrev computation for various widening scenario
======================================================

Having cloning all revisions initially
--------------------------------------

  $ hg clone --narrow ssh://user@dummy/server --include dir_x --include dir_y client_xy_rev_all  --noupdate
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 11 changesets with 16 changes to 6 files
  new changesets 4978c5c7386b:71e6a9c7a6a2
  $ cd client_xy_rev_all
  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  10:71e6a9c7a6a2: rev_d_1_
  |    dir_y/f1 dir_z/f1 dir_z/f4
  o    9:b0a0cbe5ce57: rev_d_0_
  |\     dir_x/f1 dir_z/f1 dir_z/f3
  | o  8:d04e01dcc82d: rev_c_2_
  | |    dir_y/f1 dir_y/f3 dir_z/f2 dir_z/f4
  o |  7:fc05b303b551: rev_b_3_
  | |    dir_x/f3 dir_z/f1 dir_z/f2
  o |  6:17fd34adb43b: rev_b_2_
  | |    dir_x/f2 dir_z/f1 dir_z/f2 dir_z/f3
  | o  5:fa05dbe8eed1: rev_c_1_
  | |    dir_z/f1 dir_z/f2
  | o  4:59b4258b00dc: rev_c_0_
  | |    dir_y/f1 dir_y/f2 dir_z/f1
  o |  3:328f8ced5276: rev_b_1_
  | |    dir_x/f1
  o |  2:0ccce83dd29b: rev_b_0_
  |/     dir_x/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

  $ hg tracked --addinclude dir_z
  comparing with ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 10 changes to 4 files
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 4
  1 5
  2 9
  3 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 360afd990eef 000000000000 000000000000
       1       5 7054ee088631 360afd990eef 000000000000
       2       9 6bb290463f21 7054ee088631 000000000000
       3      10 91fec784ff86 6bb290463f21 000000000000
  # expected linkrev for dir_z/f2
  0 5
  1 7
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       5 093bb0f8a0fb 000000000000 000000000000
       1       7 0f47e254cb19 093bb0f8a0fb 000000000000
  # expected linkrev for dir_z/f3
  0 6
  1 9
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       6 2ed2a3912a0b 000000000000 000000000000
       1       9 7c6d649320ae 2ed2a3912a0b 000000000000
  # expected linkrev for dir_z/f4
  0 8
  1 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       8 b004912a8510 000000000000 000000000000
       1      10 9f85b3b95e70 b004912a8510 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 11 changesets with 26 changes to 10 files
  $ cd ..


Having cloning all only branch b
--------------------------------

  $ hg clone --narrow ssh://user@dummy/server --rev `cat ./rev_b_3_` --include dir_x --include dir_y client_xy_rev_from_b_only  --noupdate
  adding changesets
  adding manifests
  adding file changes
  added 6 changesets with 10 changes to 6 files
  new changesets 4978c5c7386b:fc05b303b551
  $ cd client_xy_rev_from_b_only
  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  5:fc05b303b551: rev_b_3_
  |    dir_x/f3 dir_z/f1 dir_z/f2
  o  4:17fd34adb43b: rev_b_2_
  |    dir_x/f2 dir_z/f1 dir_z/f2 dir_z/f3
  o  3:328f8ced5276: rev_b_1_
  |    dir_x/f1
  o  2:0ccce83dd29b: rev_b_0_
  |    dir_x/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

  $ hg tracked --addinclude dir_z
  comparing with ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 5 changes to 3 files
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 4
  1 5
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 360afd990eef 000000000000 000000000000
       1       5 7054ee088631 360afd990eef 000000000000
  # expected linkrev for dir_z/f2
  0 4
  1 5
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 093bb0f8a0fb 000000000000 000000000000
       1       5 0f47e254cb19 093bb0f8a0fb 000000000000
  # expected linkrev for dir_z/f3
  0 4
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 2ed2a3912a0b 000000000000 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 6 changesets with 15 changes to 9 files
  $ cd ..


Having cloning all only branch c
--------------------------------

  $ hg clone --narrow ssh://user@dummy/server --rev `cat ./rev_c_2_` --include dir_x --include dir_y client_xy_rev_from_c_only --noupdate
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 10 changes to 6 files
  new changesets 4978c5c7386b:d04e01dcc82d
  $ cd client_xy_rev_from_c_only
  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  4:d04e01dcc82d: rev_c_2_
  |    dir_y/f1 dir_y/f3 dir_z/f2 dir_z/f4
  o  3:fa05dbe8eed1: rev_c_1_
  |    dir_z/f1 dir_z/f2
  o  2:59b4258b00dc: rev_c_0_
  |    dir_y/f1 dir_y/f2 dir_z/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

  $ hg tracked --addinclude dir_z
  comparing with ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 5 changes to 3 files
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 2
  1 3
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       2 360afd990eef 000000000000 000000000000
       1       3 7054ee088631 360afd990eef 000000000000
  # expected linkrev for dir_z/f2
  0 3
  1 4
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       3 093bb0f8a0fb 000000000000 000000000000
       1       4 0f47e254cb19 093bb0f8a0fb 000000000000
  # expected linkrev for dir_z/f4
  0 4
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 b004912a8510 000000000000 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 5 changesets with 15 changes to 9 files
  $ cd ..

Having cloning all first branch b
---------------------------------

  $ hg clone --narrow ssh://user@dummy/server --rev `cat ./rev_b_3_` --include dir_x --include dir_y client_xy_rev_from_b_first  --noupdate
  adding changesets
  adding manifests
  adding file changes
  added 6 changesets with 10 changes to 6 files
  new changesets 4978c5c7386b:fc05b303b551
  $ cd client_xy_rev_from_b_first
  $ hg pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 6 changes to 4 files
  new changesets 59b4258b00dc:71e6a9c7a6a2
  (run 'hg update' to get a working copy)
  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  10:71e6a9c7a6a2: rev_d_1_
  |    dir_y/f1 dir_z/f1 dir_z/f4
  o    9:b0a0cbe5ce57: rev_d_0_
  |\     dir_x/f1 dir_z/f1 dir_z/f3
  | o  8:d04e01dcc82d: rev_c_2_
  | |    dir_y/f1 dir_y/f3 dir_z/f2 dir_z/f4
  | o  7:fa05dbe8eed1: rev_c_1_
  | |    dir_z/f1 dir_z/f2
  | o  6:59b4258b00dc: rev_c_0_
  | |    dir_y/f1 dir_y/f2 dir_z/f1
  o |  5:fc05b303b551: rev_b_3_
  | |    dir_x/f3 dir_z/f1 dir_z/f2
  o |  4:17fd34adb43b: rev_b_2_
  | |    dir_x/f2 dir_z/f1 dir_z/f2 dir_z/f3
  o |  3:328f8ced5276: rev_b_1_
  | |    dir_x/f1
  o |  2:0ccce83dd29b: rev_b_0_
  |/     dir_x/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

  $ hg tracked --addinclude dir_z
  comparing with ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 10 changes to 4 files
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 4
  1 5
  2 9
  3 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       6 360afd990eef 000000000000 000000000000 (known-bad-output !)
       0       4 360afd990eef 000000000000 000000000000 (missing-correct-output !)
       1       7 7054ee088631 360afd990eef 000000000000 (known-bad-output !)
       1       5 7054ee088631 360afd990eef 000000000000 (missing-correct-output !)
       2       9 6bb290463f21 7054ee088631 000000000000
       3      10 91fec784ff86 6bb290463f21 000000000000
  # expected linkrev for dir_z/f2
  0 4
  1 5
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       7 093bb0f8a0fb 000000000000 000000000000 (known-bad-output !)
       0       4 093bb0f8a0fb 000000000000 000000000000 (missing-correct-output !)
       1       5 0f47e254cb19 093bb0f8a0fb 000000000000
  # expected linkrev for dir_z/f3
  0 4
  1 9
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 2ed2a3912a0b 000000000000 000000000000
       1       9 7c6d649320ae 2ed2a3912a0b 000000000000
  # expected linkrev for dir_z/f4
  0 8
  1 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       8 b004912a8510 000000000000 000000000000
       1      10 9f85b3b95e70 b004912a8510 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 11 changesets with 26 changes to 10 files
  $ cd ..


Having cloning all first branch c
---------------------------------

  $ hg clone --narrow ssh://user@dummy/server --rev `cat ./rev_c_2_` --include dir_x --include dir_y client_xy_rev_from_c_first --noupdate
  adding changesets
  adding manifests
  adding file changes
  added 5 changesets with 10 changes to 6 files
  new changesets 4978c5c7386b:d04e01dcc82d
  $ cd client_xy_rev_from_c_first
  $ hg pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 6 changesets with 6 changes to 4 files
  new changesets 0ccce83dd29b:71e6a9c7a6a2
  (run 'hg update' to get a working copy)
  $ hg log -GT "{rev}:{node|short}: {desc}\n  {files}\n"
  o  10:71e6a9c7a6a2: rev_d_1_
  |    dir_y/f1 dir_z/f1 dir_z/f4
  o    9:b0a0cbe5ce57: rev_d_0_
  |\     dir_x/f1 dir_z/f1 dir_z/f3
  | o  8:fc05b303b551: rev_b_3_
  | |    dir_x/f3 dir_z/f1 dir_z/f2
  | o  7:17fd34adb43b: rev_b_2_
  | |    dir_x/f2 dir_z/f1 dir_z/f2 dir_z/f3
  | o  6:328f8ced5276: rev_b_1_
  | |    dir_x/f1
  | o  5:0ccce83dd29b: rev_b_0_
  | |    dir_x/f1
  o |  4:d04e01dcc82d: rev_c_2_
  | |    dir_y/f1 dir_y/f3 dir_z/f2 dir_z/f4
  o |  3:fa05dbe8eed1: rev_c_1_
  | |    dir_z/f1 dir_z/f2
  o |  2:59b4258b00dc: rev_c_0_
  |/     dir_y/f1 dir_y/f2 dir_z/f1
  o  1:63f468a0fdac: rev_a_
  |    dir_x/f1 dir_x/f2 dir_x/f3 dir_y/f1 dir_y/f2 dir_y/f3
  o  0:4978c5c7386b: root
       readme.txt

  $ hg tracked --addinclude dir_z
  comparing with ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 0 changesets with 10 changes to 4 files
  $ sh ../linkrev-check.sh
  # expected linkrev for dir_z/f1
  0 2
  1 3
  2 9
  3 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       2 360afd990eef 000000000000 000000000000
       1       3 7054ee088631 360afd990eef 000000000000
       2       9 6bb290463f21 7054ee088631 000000000000
       3      10 91fec784ff86 6bb290463f21 000000000000
  # expected linkrev for dir_z/f2
  0 3
  1 4
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       3 093bb0f8a0fb 000000000000 000000000000
       1       8 0f47e254cb19 093bb0f8a0fb 000000000000 (known-bad-output !)
       1       4 0f47e254cb19 093bb0f8a0fb 000000000000 (missing-correct-output !)
  # expected linkrev for dir_z/f3
  0 7
  1 9
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       7 2ed2a3912a0b 000000000000 000000000000
       1       9 7c6d649320ae 2ed2a3912a0b 000000000000
  # expected linkrev for dir_z/f4
  0 4
  1 10
     rev linkrev       nodeid    p1-nodeid    p2-nodeid
       0       4 b004912a8510 000000000000 000000000000
       1      10 9f85b3b95e70 b004912a8510 000000000000
  # verify the repository
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checking dirstate
  checked 11 changesets with 26 changes to 10 files
  $ cd ..