comparison tests/test-shelve.t @ 26751:520defbc0335

hook: centralize passing HG_PENDING to external hook process

This patch centralizes passing HG_PENDING to external hook process
into '_exthook()'. To make in-memory changes visible to external hook
process, this patch does:

  - write (or schedule to write) in-memory dirstate changes, and
  - set HG_PENDING environment variable, if:
    - a transaction is running, and
    - there are in-memory changes to be visible

This patch tests some commands with some hooks, because transaction
activity of a same hook differs from each other ("---": "not tested").

    ======== ========= ========= ============
    command  preupdate precommit pretxncommit
    ======== ========= ========= ============
    unshelve   o        ---       ---
    backout    x        ---       ---
    import     ---       o         o
    qrefresh   ---       x         o
    ======== ========= ========= ============

Each hooks are examined separately to prevent in-memory changes from
being visible to external process accidentally by side effect of hooks
previously invoked.

26750:9f9ec4abe700

  Stream params: {'Compression': 'BZ'}
  changegroup -- "{'version': '02'}"
      7e30d8ac6f23cfc84330fd7e698730374615d21a
  $ cd ..

test Abort unshelve always gets user out of the unshelved state
---------------------------------------------------------------
  $ hg init salvage
  $ cd salvage
  $ echo 'content' > root

26751:520defbc0335

  Stream params: {'Compression': 'BZ'}
  changegroup -- "{'version': '02'}"
      7e30d8ac6f23cfc84330fd7e698730374615d21a
  $ cd ..

Test visibility of in-memory changes inside transaction to external hook
------------------------------------------------------------------------

  $ cd repo

  $ echo xxxx >> x
  $ hg commit -m "#5: changes to invoke rebase"

  $ cat > $TESTTMP/checkvisibility.sh <<EOF
  > echo "==== \$1:"
  > hg parents --template "VISIBLE {rev}:{node|short}\n"
  > # test that pending changes are hidden
  > unset HG_PENDING
  > hg parents --template "ACTUAL  {rev}:{node|short}\n"
  > echo "===="
  > EOF

  $ cat >> .hg/hgrc <<EOF
  > [defaults]
  > # to fix hash id of temporary revisions
  > unshelve = --date '0 0'
  > EOF

"hg unshelve" at REV5 implies steps below:

(1) commit changes in the working directory (REV6)
(2) unbundle shelved revision (REV7)
(3) rebase: merge REV7 into REV6 (REV6 => REV6, REV7)
(4) rebase: commit merged revision (REV8)
(5) rebase: update to REV6 (REV8 => REV6)
(6) update to REV5 (REV6 => REV5)
(7) abort transaction

== test visibility to external preupdate hook

  $ cat >> .hg/hgrc <<EOF
  > [hooks]
  > preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
  > EOF

  $ echo nnnn >> n

  $ sh $TESTTMP/checkvisibility.sh before-unshelving
  ==== before-unshelving:
  VISIBLE 5:703117a2acfb
  ACTUAL  5:703117a2acfb
  ====

  $ hg unshelve --keep default
  temporarily committing pending changes (restore with 'hg unshelve --abort')
  rebasing shelved changes
  rebasing 7:fcbb97608399 "changes to 'create conflict'" (tip)
  ==== preupdate:
  VISIBLE 6:66b86db80ee4
  ACTUAL  5:703117a2acfb
  ====
  ==== preupdate:
  VISIBLE 8:cb2a4e59c2d5
  ACTUAL  5:703117a2acfb
  ====
  ==== preupdate:
  VISIBLE 6:66b86db80ee4
  ACTUAL  5:703117a2acfb
  ====

  $ cat >> .hg/hgrc <<EOF
  > [hooks]
  > preupdate.visibility =
  > EOF

  $ sh $TESTTMP/checkvisibility.sh after-unshelving
  ==== after-unshelving:
  VISIBLE 5:703117a2acfb
  ACTUAL  5:703117a2acfb
  ====

  $ cd ..

test Abort unshelve always gets user out of the unshelved state
---------------------------------------------------------------
  $ hg init salvage
  $ cd salvage
  $ echo 'content' > root