view tests/test-command-template @ 8849:80cc4b1a62d0

compare grep result between target and its parent

I found that typical case is that grep target is added at (*) revision
in the tree shown below.

     +--- 1(*) --- 3
     0
     +--- 2 ------ 4

Now, I expect 'hg grep --all' to show only rev:1 which is first
appearance of target line.

But 'hg grep --all' will tell:

  target line dis-appeared at 3 => 4
  target line     appeared at 2 => 3
  target line dis-appeared at 1 => 2
  target line     appeared at 0 => 1

because current 'hg grep' implementation compares not between target
revision and its parent, but between neighbor revisions in walkthrough
order.

I checked performance of this patch by "hg grep --follow --all
walkchangerevs" on whole Mercurial repo, and patched version could
complete as fast as un-patched one.

#!/bin/sh

hg init a
cd a
echo a > a
hg add a
echo line 1 > b
echo line 2 >> b
hg commit -l b -d '1000000 0' -u 'User Name <user@hostname>'
hg add b
echo other 1 > c
echo other 2 >> c
echo >> c
echo other 3 >> c
hg commit -l c -d '1100000 0' -u 'A. N. Other <other@place>'
hg add c
hg commit -m 'no person' -d '1200000 0' -u 'other@place'
echo c >> c
hg commit -m 'no user, no domain' -d '1300000 0' -u 'person'
echo foo > .hg/branch
hg commit -m 'new branch' -d '1400000 0' -u 'person'
hg co -q 3
echo other 4 >> d
hg add d
hg commit -m 'new head' -d '1500000 0' -u 'person'
hg merge -q foo
hg commit -m 'merge' -d '1500001 0' -u 'person'
# second branch starting at nullrev
hg update null
echo second > second
hg add second
hg commit -m second -d '1000000 0' -u 'User Name <user@hostname>'
echo third > third
hg add third
hg commit -m third -d "2020-01-01 10:01"

# make sure user/global hgrc does not affect tests
echo '[ui]' > .hg/hgrc
echo 'logtemplate =' >> .hg/hgrc
echo 'style =' >> .hg/hgrc

echo '# default style is like normal output'
echo '#  normal'
hg log > log.out
hg log --style default > style.out
diff -u log.out style.out
echo '#  verbose'
hg log -v > log.out
hg log -v --style default > style.out
diff -u log.out style.out
echo '#  debug'
hg log --debug > log.out
hg log --debug --style default > style.out
diff -u log.out style.out

echo '# revision with no copies (used to print a traceback)'
hg tip -v --template '\n'

echo '# compact style works'
hg log --style compact
hg log -v --style compact
hg log --debug --style compact

echo '# error if style not readable'
touch q
chmod 0 q
hg log --style ./q

echo '# error if no style'
hg log --style notexist

echo '# error if style missing key'
echo 'q = q' > t
hg log --style ./t

echo '# error if include fails'
echo 'changeset = q' >> t
hg log --style ./t

echo '# include works'
rm q
echo '{rev}' > q
hg log --style ./t

echo '# ui.style works'
echo '[ui]' > .hg/hgrc
echo 'style = t' >> .hg/hgrc
hg log

echo '# issue338'
hg log --style=changelog > changelog
cat changelog

echo "# keys work"
for key in author branches date desc file_adds file_dels file_mods \
        files manifest node parents rev tags diffstat; do
    for mode in '' --verbose --debug; do
        hg log $mode --template "$key$mode: {$key}\n"
    done
done

echo '# filters work'
hg log --template '{author|domain}\n'
hg log --template '{author|person}\n'
hg log --template '{author|user}\n'
hg log --template '{date|age}\n' > /dev/null || exit 1
hg log -l1 --template '{date|age}\n' 
hg log --template '{date|date}\n'
hg log --template '{date|isodate}\n'
hg log --template '{date|isodatesec}\n'
hg log --template '{date|rfc822date}\n'
hg log --template '{desc|firstline}\n'
hg log --template '{node|short}\n'
hg log --template '<changeset author="{author|xmlescape}"/>\n'

echo '# formatnode filter works'
echo '#  quiet'
hg -q log -r 0 --template '{node|formatnode}\n'
echo '#  normal'
hg log -r 0 --template '{node|formatnode}\n'
echo '#  verbose'
hg -v log -r 0 --template '{node|formatnode}\n'
echo '#  debug'
hg --debug log -r 0 --template '{node|formatnode}\n'

echo '# error on syntax'
echo 'x = "f' >> t
hg log

echo '# done'