tests/test-merge-tools

Do not use osutil.c with python 2.4 and Windows (issue1364)

Windows python 2.4 os.stat() reports times including DST offset, while osutil.c
reports the correct value, which makes status() systematically compare files
content. This bug is fixed in python 2.5. Using osutil.py instead of osutil.c
is 4x times slower on large repositories but current code is completely
unusable. Given few people are likely to use python 2.4 on Windows this
solution was considered a good trade-off compared to more invasive solutions
trying to address the offset issue.

#!/bin/sh

# test merge-tools configuration - mostly exercising filemerge.py

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

hg init

echo "# revision 0"
echo "revision 0" > f
echo "space" >> f
hg commit -Am "revision 0" -d "1000000 0"

echo "# revision 1"
echo "revision 1" > f
echo "space" >> f
hg commit -Am "revision 1" -d "1000000 0"

hg update 0 > /dev/null
echo "# revision 2"
echo "revision 2" > f
echo "space" >> f
hg commit -Am "revision 2" -d "1000000 0"

hg update 0 > /dev/null
echo "# revision 3 - simple to merge"
echo "revision 3" >> f
hg commit -Am "revision 3" -d "1000000 0"


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

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
  rm -f f.orig
  echo
}

domerge() {
  beforemerge
  echo "# hg merge $*"
  hg merge $*
  aftermerge
}

echo
echo Tool selection
echo

echo "# default is internal merge:"
beforemerge
echo "# hg merge -r 2"
# override $PATH to ensure hgmerge not visible; use $PYTHON in case we're
# running from a devel copy, not a temp installation
PATH=$BINDIR $PYTHON $BINDIR/hg merge -r 2
aftermerge

echo "# simplest hgrc using false for merge:"
echo "false.whatever=" >> .hg/hgrc
domerge -r 2

echo "# true with higher .priority gets precedence:"
echo "true.priority=1" >> .hg/hgrc
domerge -r 2

echo "# unless lowered on command line:"
domerge -r 2 --config merge-tools.true.priority=-7

echo "# or false set higher on command line:"
domerge -r 2 --config merge-tools.false.priority=117

echo "# or true.executable not found in PATH:"
domerge -r 2 --config merge-tools.true.executable=nonexistingmergetool

echo "# or true.executable with bogus path:"
domerge -r 2 --config merge-tools.true.executable=/nonexisting/mergetool

echo "# but true.executable set to cat found in PATH works:"
echo "true.executable=cat" >> .hg/hgrc
domerge -r 2

echo "# and true.executable set to cat with path works:"
domerge -r 2 --config merge-tools.true.executable=cat

echo
echo Tool selection and merge-patterns
echo

echo "# merge-patterns specifies new tool false:"
domerge -r 2 --config merge-patterns.f=false

echo "# merge-patterns specifies executable not found in PATH and gets warning:"
domerge -r 2 --config merge-patterns.f=true --config merge-tools.true.executable=nonexistingmergetool

echo "# merge-patterns specifies executable with bogus path and gets warning:"
domerge -r 2 --config merge-patterns.f=true --config merge-tools.true.executable=/nonexisting/mergetool

echo
echo ui.merge overrules priority
echo

echo "# ui.merge specifies false:"
domerge -r 2 --config ui.merge=false

echo "# ui.merge specifies internal:fail:"
domerge -r 2 --config ui.merge=internal:fail

echo "# ui.merge specifies internal:local:"
domerge -r 2 --config ui.merge=internal:local

echo "# ui.merge specifies internal:other:"
domerge -r 2 --config ui.merge=internal:other

echo "# ui.merge specifies internal:prompt:"
domerge -r 2 --config ui.merge=internal:prompt

echo "# ui.merge specifies internal:dump:"
domerge -r 2 --config ui.merge=internal:dump
echo f.base:
cat f.base
echo f.local:
cat f.local
echo f.other:
cat f.other
rm f.base f.local f.other
echo

echo "# ui.merge specifies internal:other but is overruled by pattern for false:"
domerge -r 2 --config ui.merge=internal:other --config merge-patterns.f=false

echo
echo Premerge
echo

echo "# Default is silent simplemerge:"
domerge -r 3

echo "# .premerge=True is same:"
domerge -r 3 --config merge-tools.true.premerge=True

echo "# .premerge=False executes merge-tool:"
domerge -r 3 --config merge-tools.true.premerge=False


echo
echo Tool execution
echo

echo '# set tools.args explicit to include $base $local $other $output:' # default '$local $base $other'
beforemerge
hg merge -r 2 --config merge-tools.true.executable=head --config merge-tools.true.args='$base $local $other $output' \
  | sed 's,==> .* <==,==> ... <==,g'
aftermerge

echo '# Merge with "echo mergeresult > $local":'
beforemerge
hg merge -r 2 --config merge-tools.true.executable=echo --config merge-tools.true.args='mergeresult > $local'
aftermerge

echo '# - and $local is the file f:'
beforemerge
hg merge -r 2 --config merge-tools.true.executable=echo --config merge-tools.true.args='mergeresult > f'
aftermerge

echo '# Merge with "echo mergeresult > $output" - the variable is a bit magic:'
beforemerge
hg merge -r 2 --config merge-tools.true.executable=echo --config merge-tools.true.args='mergeresult > $output'
aftermerge


echo
echo Merge post-processing
echo

echo "# cat is a bad merge-tool and doesn't change:"
domerge -y -r 2 --config merge-tools.true.checkchanged=1