Mercurial > hg
view tests/test-diff-ignore-whitespace.t @ 25899:c35ee1bbbbdc
highlight: exit early on textual and unknown files (issue3005)
When highlight extension encountered files that pygments didn't recognize, it
used to fall back to text lexer. Also, pygments uses TextLexer for .txt files.
This lexer is noop by design.
On bigger files, however, doing the noop highlighting resulted in noticeable
extra CPU work and memory usage: to show a 1 MB text file, hgweb required about
0.7s more (on top of ~3.8s, Q8400) and consumed about 100 MB of RAM more (on
top of ~150 MB).
Let's just exit the function when it's clear that nothing will be highlighted.
Due to how this pygmentize function works (it modifies the template in-place),
we can just return from it and everything else will work as if highlight
extension wasn't enabled.
author | Anton Shestakov <av6@dwimlabs.net> |
---|---|
date | Sun, 02 Aug 2015 19:18:35 +0800 |
parents | 405b6bd015df |
children | da07367d683b |
line wrap: on
line source
GNU diff is the reference for all of these results. Prepare tests: $ echo '[alias]' >> $HGRCPATH $ echo 'ndiff = diff --nodates' >> $HGRCPATH $ hg init $ printf 'hello world\ngoodbye world\n' >foo $ hg ci -Amfoo -ufoo adding foo Test added blank lines: $ printf '\nhello world\n\ngoodbye world\n\n' >foo >>> two diffs showing three added lines <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ + hello world + goodbye world + $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ + hello world + goodbye world + >>> no diffs <<< $ hg ndiff -B $ hg ndiff -Bb Test added horizontal space first on a line(): $ printf '\t hello world\ngoodbye world\n' >foo >>> four diffs showing added space first on the first line <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world + hello world goodbye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world + hello world goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world + hello world goodbye world $ hg ndiff -Bb diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world + hello world goodbye world Test added horizontal space last on a line: $ printf 'hello world\t \ngoodbye world\n' >foo >>> two diffs showing space appended to the first line <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world +hello world goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world +hello world goodbye world >>> no diffs <<< $ hg ndiff -b $ hg ndiff -Bb Test added horizontal space in the middle of a word: $ printf 'hello world\ngood bye world\n' >foo >>> four diffs showing space inserted into "goodbye" <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +good bye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +good bye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +good bye world $ hg ndiff -Bb diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +good bye world Test increased horizontal whitespace amount: $ printf 'hello world\ngoodbye\t\t \tworld\n' >foo >>> two diffs showing changed whitespace amount in the last line <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ hello world -goodbye world +goodbye world >>> no diffs <<< $ hg ndiff -b $ hg ndiff -Bb Test added blank line with horizontal whitespace: $ printf 'hello world\n \t\ngoodbye world\n' >foo >>> three diffs showing added blank line with horizontal space <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world + goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world + goodbye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world + goodbye world >>> no diffs <<< $ hg ndiff -Bb Test added blank line with other whitespace: $ printf 'hello world\n \t\ngoodbye world \n' >foo >>> three diffs showing added blank line with other space <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ -hello world -goodbye world +hello world + +goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ -hello world -goodbye world +hello world + +goodbye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world + goodbye world >>> no diffs <<< $ hg ndiff -Bb Test whitespace changes: $ printf 'helloworld\ngoodbye\tworld \n' >foo >>> four diffs showing changed whitespace <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world -goodbye world +helloworld +goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world -goodbye world +helloworld +goodbye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world +helloworld goodbye world $ hg ndiff -Bb diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,2 @@ -hello world +helloworld goodbye world >>> no diffs <<< $ hg ndiff -w Test whitespace changes and blank lines: $ printf 'helloworld\n\n\n\ngoodbye\tworld \n' >foo >>> five diffs showing changed whitespace <<< $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ -hello world -goodbye world +helloworld + + + +goodbye world $ hg ndiff -B diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ -hello world -goodbye world +helloworld + + + +goodbye world $ hg ndiff -b diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ -hello world +helloworld + + + goodbye world $ hg ndiff -Bb diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ -hello world +helloworld + + + goodbye world $ hg ndiff -w diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,5 @@ hello world + + + goodbye world >>> no diffs <<< $ hg ndiff -wB Test \r (carriage return) as used in "DOS" line endings: $ printf 'hello world\r\n\r\ngoodbye\rworld\n' >foo $ hg ndiff diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ -hello world -goodbye world +hello world\r (esc) +\r (esc) +goodbye\r (no-eol) (esc) world No completely blank lines to ignore: $ hg ndiff --ignore-blank-lines diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ -hello world -goodbye world +hello world\r (esc) +\r (esc) +goodbye\r (no-eol) (esc) world Only new line noticed: $ hg ndiff --ignore-space-change diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world +\r (esc) goodbye world $ hg ndiff --ignore-all-space diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ hello world +\r (esc) goodbye world New line not noticed when space change ignored: $ hg ndiff --ignore-blank-lines --ignore-all-space Do not ignore all newlines, only blank lines $ printf 'hello \nworld\ngoodbye world\n' > foo $ hg ndiff --ignore-blank-lines diff -r 540c40a65b78 foo --- a/foo +++ b/foo @@ -1,2 +1,3 @@ -hello world +hello +world goodbye world Test hunk offsets adjustments with --ignore-blank-lines $ hg revert -aC reverting foo $ printf '\nb\nx\nd\n' > a $ printf 'b\ny\nd\n' > b $ hg add a b $ hg ci -m add $ hg cat -r . a > b $ hg cat -r . b > a $ hg diff -B --nodates a > ../diffa $ cat ../diffa diff -r 0e66aa54f318 a --- a/a +++ b/a @@ -1,4 +1,4 @@ b -x +y d $ hg diff -B --nodates b > ../diffb $ cat ../diffb diff -r 0e66aa54f318 b --- a/b +++ b/b @@ -1,3 +1,3 @@ b -y +x d $ hg revert -aC reverting a reverting b $ hg import --no-commit ../diffa applying ../diffa $ hg revert -aC reverting a $ hg import --no-commit ../diffb applying ../diffb $ hg revert -aC reverting b