view tests/test-status @ 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 repo1
cd repo1
mkdir a b a/1 b/1 b/2
touch in_root a/in_a b/in_b a/1/in_a_1 b/1/in_b_1 b/2/in_b_2
echo "hg status in repo root:"
hg status
echo "hg status . in repo root:"
hg status .
for dir in a b a/1 b/1 b/2; do
    echo "hg status in $dir:"
    hg status --cwd "$dir"
    echo "hg status . in $dir:"
    hg status --cwd "$dir" .
    echo "hg status .. in $dir:"
    hg status --cwd "$dir" ..
done
cd ..

hg init repo2
cd repo2
touch modified removed deleted ignored
echo "^ignored$" > .hgignore
hg ci -A -m 'initial checkin' -d "1000000 0"
touch modified added unknown ignored
hg add added
hg remove removed
rm deleted
echo "hg status:"
hg status
echo "hg status modified added removed deleted unknown never-existed ignored:"
hg status modified added removed deleted unknown never-existed ignored
hg copy modified copied
echo "hg status -C:"
hg status -C
echo "hg status -A:"
hg status -A
echo "^ignoreddir$" > .hgignore
mkdir ignoreddir
touch ignoreddir/file
echo "hg status ignoreddir/file:"
hg status ignoreddir/file
echo "hg status -i ignoreddir/file:"
hg status -i ignoreddir/file
cd ..

# check 'status -q' and some combinations
hg init repo3
cd repo3
touch modified removed deleted ignored
echo "^ignored$" > .hgignore
hg commit -A -m 'initial checkin'
touch added unknown ignored
hg add added
echo "test" >> modified
hg remove removed
rm deleted
hg copy modified copied

# Run status with 2 different flags.
# Check if result is the same or different.
# If result is not as expected, raise error
assert() {
    hg status $1 > ../a
    hg status $2 > ../b
    out=`diff ../a ../b`
    if [ $? -ne 0 ]; then
        out=1
    else
        out=0
    fi
    if [ $3 -eq 0 ]; then
        df="same"
    else
        df="different"
    fi
    if [ $out -ne $3 ]; then
        echo "Error on $1 and $2, should be $df."
    fi
}

# assert flag1 flag2 [0-same | 1-different]
assert "-q" "-mard"      0
assert "-A" "-marduicC"  0
assert "-qA" "-mardcC"   0
assert "-qAui" "-A"      0
assert "-qAu" "-marducC" 0
assert "-qAi" "-mardicC" 0
assert "-qu" "-u"        0
assert "-q" "-u"         1
assert "-m" "-a"         1
assert "-r" "-d"         1