test merge-tools configuration - mostly exercising filemerge.py

  $ unset HGMERGE # make sure HGMERGE doesn't interfere with the test

  $ hg init repo

  $ cd repo

revision 0

  $ echo "revision 0" > f

  $ echo "space" >> f

  $ hg commit -Am "revision 0"

  adding f

revision 1

  $ echo "revision 1" > f

  $ echo "space" >> f

  $ hg commit -Am "revision 1"

  $ hg update 0 > /dev/null

revision 2

  $ echo "revision 2" > f

  $ echo "space" >> f

  $ hg commit -Am "revision 2"

  created new head

  $ hg update 0 > /dev/null

revision 3 - simple to merge

  $ echo "revision 3" >> f

  $ hg commit -Am "revision 3"

  created new head

revision 4 - hard to merge

  $ hg update 0 > /dev/null

  $ echo "revision 4" > f

  $ hg commit -Am "revision 4"

  created new head

  $ echo "[merge-tools]" > .hg/hgrc

  $ beforemerge() {

  >   cat .hg/hgrc

  >   echo "# hg update -C 1"

  >   hg update -C 1 > /dev/null

  > }

  $ aftermerge() {

  >   echo "# cat f"

  >   cat f

  >   echo "# hg stat"

  >   hg stat

  >   echo "# hg resolve --list"

  >   hg resolve --list

  >   rm -f f.orig

  > }

Tool selection

default is internal merge:

  $ beforemerge

  [merge-tools]

  # hg update -C 1

hg merge -r 2

override $PATH to ensure hgmerge not visible; use $PYTHON in case we're

running from a devel copy, not a temp installation

  merging f

  warning: conflicts while merging f! (edit, then use 'hg resolve --mark')

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  <<<<<<< working copy: ef83787e2614 - test: revision 1

  revision 1

  =======

  revision 2

  >>>>>>> merge rev:    0185f4e0cf02 - test: revision 2

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

simplest hgrc using false for merge:

  $ echo "false.whatever=" >> .hg/hgrc

  $ beforemerge

  [merge-tools]

  false.whatever=

  # hg update -C 1

  $ hg merge -r 2

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

#if unix-permissions

unexecutable file in $PATH shouldn't be found:

  $ echo "echo fail" > false

  $ hg up -qC 1

  merging f

  warning: conflicts while merging f! (edit, then use 'hg resolve --mark')

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ rm false

#endif

executable directory in $PATH shouldn't be found:

  $ mkdir false

  $ hg up -qC 1

  merging f

  warning: conflicts while merging f! (edit, then use 'hg resolve --mark')

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ rmdir false

true with higher .priority gets precedence:

  $ echo "true.priority=1" >> .hg/hgrc

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2

  merging f

  0 files updated, 1 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  # hg resolve --list

  R f

unless lowered on command line:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.priority=-7

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

or false set higher on command line:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.false.priority=117

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

or true set to disabled:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.disabled=yes

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

or true.executable not found in PATH:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable=nonexistentmergetool

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

or true.executable with bogus path:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable=/nonexistent/mergetool

  merging f

  merging f failed!

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon

  [1]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  ? f.orig

  # hg resolve --list

  U f

but true.executable set to cat found in PATH works:

  $ echo "true.executable=cat" >> .hg/hgrc

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2

  merging f

  revision 1

  space

  revision 0

  space

  revision 2

  space

  0 files updated, 1 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  # hg resolve --list

  R f

and true.executable set to cat with path works:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable=cat

  merging f

  revision 1

  space

  revision 0

  space

  revision 2

  space

  0 files updated, 1 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  # hg resolve --list

  R f

executable set to python script that succeeds:

  $ cat > "$TESTTMP/myworkingmerge.py" <<EOF

  > def myworkingmergefn(ui, repo, args, **kwargs):

  >     return False

  > EOF

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable="python:$TESTTMP/myworkingmerge.py:myworkingmergefn"

  merging f

  0 files updated, 1 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  M f

  # hg resolve --list

  R f

executable set to python script that fails:

  $ cat > "$TESTTMP/mybrokenmerge.py" <<EOF

  > def mybrokenmergefn(ui, repo, args, **kwargs):

  >     ui.write(b"some fail message\n")

  >     return True

  > EOF

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable="python:$TESTTMP/mybrokenmerge.py:mybrokenmergefn"

  merging f

  some fail message

  abort: $TESTTMP/mybrokenmerge.py hook failed

  [255]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  ? f.orig

  # hg resolve --list

  U f

executable set to python script that is missing function:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable="python:$TESTTMP/myworkingmerge.py:missingFunction"

  merging f

  abort: $TESTTMP/myworkingmerge.py does not have function: missingFunction

  [255]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat

  ? f.orig

  # hg resolve --list

  U f

executable set to missing python script:

  $ beforemerge

  [merge-tools]

  false.whatever=

  true.priority=1

  true.executable=cat

  # hg update -C 1

  $ hg merge -r 2 --config merge-tools.true.executable="python:$TESTTMP/missingpythonscript.py:mergefn"

  merging f

  abort: loading python merge script failed: $TESTTMP/missingpythonscript.py

  [255]

  $ aftermerge

  # cat f

  revision 1

  space

  # hg stat