Improve shebangfix framework

- Support multiple values in *_OLD_CMD, i.e. we can now fix both "/usr/bin/python" and "/usr/bin/env python" at the same time
- Default *_OLD_CMD values are now always appended, so you don't need to specify them in individual ports
- Add lua support (depends on USES=lua)
- Add more default values, such as "/usr/bin/env foo" for python, perl, bash, ruby and lua
- Shebangfix now matches whole words, e.g. we will no longer (erroneously) replace "/usr/bin/perl5.005" with "${perl_CMD}5.005" (but "/usr/bin/perl -tt" is still (correctly) replaced with "${perl_CMD} -tt")

Note that *_OLD_CMD items containing spaces must now be quoted (e.g. perl_OLD_CMD=/bin/perl /usr/bin/perl "/usr/bin/env perl")

Update shebangfix usage according to new rules in many ports:

- Remove *_OLD_CMD for patterns now replaced by default
- Quote custom *_OLD_CMD which contain spaces

Fix shebangfix usage in many ports (irrelevant to infrastructure change):

- Remove redundant SHEBANG_LANG (no need to duplicate default langs)
- Remove redundant *_CMD (such as python_CMD=${LOCALBASE}/bin/python${PYTHON_VER} when USES=python is present)
- Never use *_OLD_CMD in REINPLACE_CMD matchers, these should always look for exact string

Approved by:	portmgr (bapt)
Differential Revision:	D3756

1 files changed, 1 insertions, 3 deletions

diff --git a/graphics/py-cairo/Makefile b/graphics/py-cairo/Makefile
index 73f3c8e3fab6..ddcb501872e2 100644
--- a/graphics/py-cairo/Makefile
+++ b/graphics/py-cairo/Makefile
@@ -20,9 +20,7 @@ LDFLAGS+=	-L${LOCALBASE}/lib
 CONFIGURE_ENV=	PYTHON=${LOCALBASE}/bin/${PYTHON_CMD} \
 		PREFIX=${PREFIX}
 
-python_OLD_CMD?=	/usr/bin/env python
-python_CMD?=		${LOCALBASE}/bin/python2
-SHEBANG_FILES=		examples/*.py examples/*/*.py test/*.py
+SHEBANG_FILES=	examples/*.py examples/*/*.py test/*.py
 
 post-install:
 	@cd ${STAGEDIR}${PREFIX} && ${PYTHON_CMD} ${PYTHON_LIBDIR}/compileall.py \