git/t/t4018-diff-funcname.sh
Jonathan Nieder 71a5d4bc0e diff: funcname and word patterns for perl
The default function name discovery already works quite well for Perl
code... with the exception of here-documents (or rather their ending).

 sub foo {
	print <<END
 here-document
 END
	return 1;
 }

The default funcname pattern treats the unindented END line as a
function declaration and puts it in the @@ line of diff and "grep
--show-function" output.

With a little knowledge of perl syntax, we can do better.  You can
try it out by adding "*.perl diff=perl" to the gitattributes file.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-27 08:47:21 -08:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test custom diff function name patterns'
. ./test-lib.sh
LF='
'
cat > Beer.java << EOF
public class Beer
{
int special;
public static void main(String args[])
{
String s=" ";
for(int x = 99; x > 0; x--)
{
System.out.print(x + " bottles of beer on the wall "
+ x + " bottles of beer\n"
+ "Take one down, pass it around, " + (x - 1)
+ " bottles of beer on the wall.\n");
}
System.out.print("Go to the store, buy some more,\n"
+ "99 bottles of beer on the wall.\n");
}
}
EOF
sed 's/beer\\/beer,\\/' < Beer.java > Beer-correct.java
builtin_patterns="bibtex cpp csharp fortran html java objc pascal perl php python ruby tex"
for p in $builtin_patterns
do
test_expect_success "builtin $p pattern compiles" '
echo "*.java diff=$p" > .gitattributes &&
! { git diff --no-index Beer.java Beer-correct.java 2>&1 |
grep "fatal" > /dev/null; }
'
test_expect_success "builtin $p wordRegex pattern compiles" '
! { git diff --no-index --word-diff \
Beer.java Beer-correct.java 2>&1 |
grep "fatal" > /dev/null; }
'
done
test_expect_success 'default behaviour' '
rm -f .gitattributes &&
git diff --no-index Beer.java Beer-correct.java |
grep "^@@.*@@ public class Beer"
'
test_expect_success 'preset java pattern' '
echo "*.java diff=java" >.gitattributes &&
git diff --no-index Beer.java Beer-correct.java |
grep "^@@.*@@ public static void main("
'
git config diff.java.funcname '!static
!String
[^ ].*s.*'
test_expect_success 'custom pattern' '
git diff --no-index Beer.java Beer-correct.java |
grep "^@@.*@@ int special;$"
'
test_expect_success 'last regexp must not be negated' '
git config diff.java.funcname "!static" &&
git diff --no-index Beer.java Beer-correct.java 2>&1 |
grep "fatal: Last expression must not be negated:"
'
test_expect_success 'pattern which matches to end of line' '
git config diff.java.funcname "Beer$" &&
git diff --no-index Beer.java Beer-correct.java |
grep "^@@.*@@ Beer"
'
test_expect_success 'alternation in pattern' '
git config diff.java.xfuncname "^[ ]*((public|static).*)$" &&
git diff --no-index Beer.java Beer-correct.java |
grep "^@@.*@@ public static void main("
'
test_done