Uses/cabal.mk: Introduce CABAL_REVISION knob.

This knob allows pulling in a revised .cabal file for a Haskell package
being ported. This allows us to drop local patches that were serving the
same purpose.

Author: arrowd

Mk/Uses/cabal.mk

@@ -19,6 +19,9 @@
 #			When creating a new port, the initial list can be built
 #			using make-use-cabal auxiliary target.
 #
+#  CABAL_REVISION	Specifies a Haskell package revision. Set this to an
+#			integer to pull in revised .cabal file from Hackage.
+#
 #  CABAL_FLAGS		List of Cabal flags to be passed verbatim into --flags
 #			argument of cabal-install utility. Used for both
 #			cabal configure and cabal build.
@@ -125,6 +128,9 @@ MASTER_SITES+=	https://hackage.haskell.org/package/${_hackage_group} \
 
 .  if ${_hackage_is_default} == yes
 DISTFILES+=	${PORTNAME}-${PORTVERSION}/${PORTNAME}-${PORTVERSION}${CABAL_EXTRACT_SUFX}
+.    ifdef CABAL_REVISION
+DISTFILES+=	${PORTNAME}-${PORTVERSION}/revision/${CABAL_REVISION}.cabal
+.    endif
 .  else
 _hackage_group=	:cabal_mk_hackage
 .  endif
@@ -201,6 +207,11 @@ cabal-build: check-cabal
 make-use-cabal: check-cabal2tuple
 	@${ECHO_MSG} "===> Processing plan.json"
 	@${_CABAL2TUPLE_CMD} ${WRKSRC} || (${ECHO_CMD} "Did you forget to make cabal-configure ?" ; exit 1)
+.  if ${_hackage_is_default} == yes
+	@if ${GREP} -q 'x-revision' ${WRKSRC}/*.cabal; then \
+		${ECHO_MSG} "Downloaded .cabal file contains x-revision, make sure to add CABAL_REVISION=" `${GREP} 'x-revision' ${WRKSRC}/*.cabal | ${SED} -e s/x-revision://`; \
+	fi
+.  endif
 
 check-cabal:
 	@if ! type ${CABAL_CMD} > /dev/null 2>&1; then \
@@ -225,18 +236,22 @@ cabal-post-extract:
 	@${TEST} ! -f ${WRKSRC}/cabal.project || \
 		(${ECHO_CMD} "cabal.project file is already present in WRKSRC! Set CABAL_PROJECT variable." && false)
 .    endif
+# Copy revised .cabal file if present
+.    if defined(CABAL_REVISION) && ${_hackage_is_default} == yes
+	${CP} ${DISTDIR}/${DIST_SUBDIR}/${PORTNAME}-${PORTVERSION}/revision/${CABAL_REVISION}.cabal `find ${WRKSRC} -name '*.cabal' -depth 1`
+.    endif
 
 # Move extracted dependencies into ${CABAL_DEPSDIR} directory
 	${MKDIR} ${CABAL_DEPSDIR}
 .    for package in ${_use_cabal}
 .      for pkg_name xrev in ${package:C/_[0-9]+//} x${package:C/[^_]*//:S/_//}
 # Copy revised .cabal file if present
 .        if ${xrev} != "x"
-		cp ${DISTDIR}/${DIST_SUBDIR}/${pkg_name}/revision/${xrev:S/x//}.cabal `find ${WRKDIR}/${pkg_name} -name '*.cabal' -depth 1`
+		${CP} ${DISTDIR}/${DIST_SUBDIR}/${pkg_name}/revision/${xrev:S/x//}.cabal `find ${WRKDIR}/${pkg_name} -name '*.cabal' -depth 1`
 .        endif
 # Move the dependency source itself
 	cd ${WRKDIR} && \
-		mv ${pkg_name} ${CABAL_DEPSDIR}/
+		${MV} ${pkg_name} ${CABAL_DEPSDIR}/
 .      endfor
 .    endfor
 # Create the cabal-install config

converters/hs-aeson-pretty/Makefile

@@ -11,6 +11,7 @@ LICENSE=	BSD3CLAUSE
 
 USES=		cabal
 
+CABAL_REVISION=	2
 USE_CABAL=	OneTuple-0.3.1_3 \
 		QuickCheck-2.14.2 \
 		StateVar-1.2.2 \

converters/hs-aeson-pretty/distinfo

@@ -1,6 +1,8 @@
-TIMESTAMP = 1668511709
+TIMESTAMP = 1668587368
 SHA256 (cabal/aeson-pretty-0.8.9/aeson-pretty-0.8.9.tar.gz) = 5dbc4f451dfa1e667b2c6ec5170714fed1905dc9cae6a1134b3376f355fa2a08
 SIZE (cabal/aeson-pretty-0.8.9/aeson-pretty-0.8.9.tar.gz) = 5802
+SHA256 (cabal/aeson-pretty-0.8.9/revision/2.cabal) = f7b1808efab1b9edd0efbdfc2cd47e7dfe8bbd42ee970d1d3780112a4de125a1
+SIZE (cabal/aeson-pretty-0.8.9/revision/2.cabal) = 2559
 SHA256 (cabal/OneTuple-0.3.1/OneTuple-0.3.1.tar.gz) = 98853682d52fb4cc37a45cd186fbd77cf2565d3df5171acc4cf026427e103eef
 SIZE (cabal/OneTuple-0.3.1/OneTuple-0.3.1.tar.gz) = 5148
 SHA256 (cabal/OneTuple-0.3.1/revision/3.cabal) = fc32cb744477befa450a538ea4975cc523f0a2f1585cb5a36e9936a3d18e9a3c

converters/hs-aeson-pretty/files/patch-aeson-pretty.cabal

@@ -11,6 +11,7 @@ LICENSE=	LGPL21
 
 USES=		cabal
 
+CABAL_REVISION=	1
 USE_CABAL=	polyparse-1.13_5
 
 .include <bsd.port.mk>

devel/hs-cpphs/Makefile

@@ -1,6 +1,8 @@
-TIMESTAMP = 1668511758
+TIMESTAMP = 1668595648
 SHA256 (cabal/cpphs-1.20.9.1/cpphs-1.20.9.1.tar.gz) = 7f59b10bc3374004cee3c04fa4ee4a1b90d0dca84a3d0e436d5861a1aa3b919f
 SIZE (cabal/cpphs-1.20.9.1/cpphs-1.20.9.1.tar.gz) = 45496
+SHA256 (cabal/cpphs-1.20.9.1/revision/1.cabal) = 0ad26fef4e6be4cb13e1df93aab7bdbe9c3d3bc6c63b84d9e29cc0f691fe12b9
+SIZE (cabal/cpphs-1.20.9.1/revision/1.cabal) = 3331
 SHA256 (cabal/polyparse-1.13/polyparse-1.13.tar.gz) = 1c4c72980e1e5a4f07fea65ca08b2399581d2a6aa21eb1078f7ad286c279707b
 SIZE (cabal/polyparse-1.13/polyparse-1.13.tar.gz) = 33144
 SHA256 (cabal/polyparse-1.13/revision/5.cabal) = aca2fc54c5c90eaa85e59368ae3533cdc8a4bb85bb9d3e6de885f8e66eb11917

devel/hs-cpphs/distinfo

@@ -11,6 +11,7 @@ LICENSE=	BSD3CLAUSE
 
 USES=		cabal
 
+CABAL_REVISION=	2
 USE_CABAL=	ansi-terminal-0.11.3 \
 		ansi-wl-pprint-0.6.9_3 \
 		colour-2.3.6 \

devel/hs-cpphs/files/patch-cpphs.cabal

@@ -1,6 +1,8 @@
-TIMESTAMP = 1668511776
+TIMESTAMP = 1668595900
 SHA256 (cabal/hasktags-0.72.0/hasktags-0.72.0.tar.gz) = adadb5800ab2996f0198a6fc6af959dee6d69339c204cc9789f83e67024fe726
 SIZE (cabal/hasktags-0.72.0/hasktags-0.72.0.tar.gz) = 59000
+SHA256 (cabal/hasktags-0.72.0/revision/2.cabal) = 1d3cb246cf1b374bcbf5dfab2dd0f99c9c0898412281583ef89fe9bdc6347b38
+SIZE (cabal/hasktags-0.72.0/revision/2.cabal) = 2866
 SHA256 (cabal/ansi-terminal-0.11.3/ansi-terminal-0.11.3.tar.gz) = f4d563ecf71fb1d304bcdcad478d97efd9f61f6d9d4797a5d56e7722a92a9e6b
 SIZE (cabal/ansi-terminal-0.11.3/ansi-terminal-0.11.3.tar.gz) = 37868
 SHA256 (cabal/ansi-wl-pprint-0.6.9/ansi-wl-pprint-0.6.9.tar.gz) = a7b2e8e7cd3f02f2954e8b17dc60a0ccd889f49e2068ebb15abfa1d42f7a4eac