tests/test-status-color

findrenames: Optimise "addremove -s100" by matching files by their SHA1 hashes.

We speed up 'findrenames' for the usecase when a user specifies they
want a similarity of 100% by matching files by their exact SHA1 hash
value. This reduces the number of comparisons required to find exact
matches from O(n^2) to O(n).

While it would be nice if we could just use mercurial's pre-calculated
SHA1 hash for existing files, this hash includes the file's ancestor
information making it unsuitable for our purposes. Instead, we calculate
the hash of old content from scratch.

The following benchmarks were taken on the current head of crew:

addremove 100% similarity:
  rm -rf *; hg up -C; mv tests tests.new
  hg --time addremove -s100 --dry-run

  before:  real 176.350 secs (user 128.890+0.000 sys 47.430+0.000)
  after:   real   2.130 secs (user   1.890+0.000 sys  0.240+0.000)

addremove 75% similarity:
  rm -rf *; hg up -C; mv tests tests.new; \
      for i in tests.new/*; do echo x >> $i; done
  hg --time addremove -s75  --dry-run

  before: real 264.560 secs (user 215.130+0.000 sys 49.410+0.000)
  after:  real 218.710 secs (user 172.790+0.000 sys 45.870+0.000)

#!/bin/sh

echo "[extensions]" >> $HGRCPATH
echo "color=" >> $HGRCPATH

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 --color=always
echo "hg status . in repo root:"
hg status --color=always .
for dir in a b a/1 b/1 b/2; do
    echo "hg status in $dir:"
    hg status --color=always --cwd "$dir"
    echo "hg status . in $dir:"
    hg status --color=always --cwd "$dir" .
    echo "hg status .. in $dir:"
    hg status --color=always --cwd "$dir" ..
done
cd ..

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

echo "% test unknown color"
hg --config color.status.modified=periwinkle status --color=always

# 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 --color=always $1 > ../a
    hg status --color=always $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

cd ..

# test 'resolve -l'
hg init repo4
cd repo4
echo "file a" > a
echo "file b" > b
hg add a b
hg commit -m "initial"
echo "file a change 1" > a
echo "file b change 1" > b
hg commit -m "head 1"
hg update 0
echo "file a change 2" > a
echo "file b change 2" > b
hg commit -m "head 2"
hg merge
hg resolve -m b
echo "hg resolve with one unresolved, one resolved:"
hg resolve --color=always -l