tests/test-hgweb

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
# Some tests for hgweb. Tests static files, plain files and different 404's.

hg init test
cd test
mkdir da
echo foo > da/foo
echo foo > foo
hg ci -Ambase

hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
cat hg.pid >> $DAEMON_PIDS

echo % manifest
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/?style=raw')
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/da?style=raw')

echo % plain file
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/foo?style=raw'

echo % should give a 404 - static file that does not exist
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/static/bogus'

echo % should give a 404 - bad revision
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/spam/foo?style=raw'

echo % should give a 400 - bad command
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/foo?cmd=spam&style=raw' | sed 's/400.*/400/'

echo % should give a 404 - file does not exist
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/bork?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/bork'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/diff/tip/bork?style=raw'

echo % try bad style
("$TESTDIR/get-with-headers.py" localhost:$HGPORT '/file/tip/?style=foobar')

echo % stop and restart
"$TESTDIR/killdaemons.py"
hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log
cat hg.pid >> $DAEMON_PIDS
# Test the access/error files are opened in append mode
python -c "print len(file('access.log').readlines()), 'log lines written'"

echo % static file
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/static/style-gitweb.css'

echo % errors
cat errors.log