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Revision 982 - (show annotations) (download)
Thu Feb 2 04:20:17 2006 UTC (13 years, 2 months ago) by kito
File size: 5745 byte(s)
Initial eclass import from gentoo-x86
1 # Copyright 1999-2005 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.2 2005/12/05 12:24:53 dcoutts Exp $
4 #
5 # Original authors: Andres Loeh <kosmikus@gentoo.org>
6 # Duncan Coutts <dcoutts@gentoo.org>
7 # Maintained by: Haskell herd <haskell@gentoo.org>
8 #
9 # This eclass is for packages that make use of the
10 # Haskell Common Architecture for Building Applications
11 # and Libraries (cabal).
12 #
13 # Basic instructions:
14 #
15 # Before inheriting the eclass, set CABAL_FEATURES to
16 # reflect the tools and features that the package makes
17 # use of.
18 #
19 # Currently supported features:
20 # haddock -- for documentation generation
21 # alex -- lexer/scanner generator
22 # happy -- parser generator
23 # c2hs -- C interface generator
24 # cpphs -- C preprocessor clone written in Haskell
25 # profile -- if package supports to build profiling-enabled libraries
26 # bootstrap -- only used for the cabal package itself
27 #
28 # Dependencies on other cabal packages have to be specified
29 # correctly.
30 #
31 # Cabal libraries should usually be SLOTted with "${PV}".
32 #
33 # Many Cabal packages require S to be manually set.
34 #
35 # Conforming Cabal packages don't require any function definitions
36 # in the ebuild.
37
38 inherit ghc-package
39
40
41 for feature in ${CABAL_FEATURES}; do
42 case ${feature} in
43 haddock) CABAL_USE_HADDOCK=yes;;
44 alex) CABAL_USE_ALEX=yes;;
45 happy) CABAL_USE_HAPPY=yes;;
46 c2hs) CABAL_USE_C2HS=yes;;
47 cpphs) CABAL_USE_CPPHS=yes;;
48 profile) CABAL_USE_PROFILE=yes;;
49 bootstrap) CABAL_BOOTSTRAP=yes;;
50 *) ewarn "Unknown entry in CABAL_FEATURES: ${feature}";;
51 esac
52 done
53
54 if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
55 IUSE="${IUSE} doc"
56 DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
57 cabalconf="${cabalconf} --with-haddock=/usr/bin/haddock"
58 fi
59
60 if [[ -n "${CABAL_USE_ALEX}" ]]; then
61 DEPEND="${DEPEND} dev-haskell/alex"
62 cabalconf="${cabalconf} --with-alex=/usr/bin/alex"
63 fi
64
65 if [[ -n "${CABAL_USE_HAPPY}" ]]; then
66 DEPEND="${DEPEND} dev-haskell/happy"
67 cabalconf="${cabalconf} --with-happy=/usr/bin/happy"
68 fi
69
70 if [[ -n "${CABAL_USE_C2HS}" ]]; then
71 DEPEND="${DEPEND} dev-haskell/c2hs"
72 cabalconf="${cabalconf} --with-c2hs=/usr/bin/c2hs"
73 fi
74
75 if [[ -n "${CABAL_USE_CPPHS}" ]]; then
76 DEPEND="${DEPEND} dev-haskell/cpphs"
77 cabalconf="${cabalconf} --with-cpphs=/usr/bin/cpphs"
78 fi
79
80 if [[ -n "${CABAL_USE_PROFILE}" ]]; then
81 IUSE="${IUSE} profile"
82 fi
83
84 # We always use a standalone version of Cabal, rather than the one that comes
85 # with GHC. But of course we can't depend on cabal when building cabal itself.
86 if [[ -z "${CABAL_BOOTSTRAP}" ]]; then
87 DEPEND="${DEPEND} >=dev-haskell/cabal-1.1.3"
88 fi
89
90
91 cabal-bootstrap() {
92 local setupmodule
93 local cabalversion
94 if [[ -f "${S}/Setup.lhs" ]]; then
95 setupmodule="${S}/Setup.lhs"
96 else
97 if [[ -f "${S}/Setup.hs" ]]; then
98 setupmodule="${S}/Setup.hs"
99 else
100 die "No Setup.lhs or Setup.hs found"
101 fi
102 fi
103
104 # We build the setup program using the latest version of
105 # cabal that we have installed
106 cabalversion=$(ghc-bestcabalversion)
107 einfo "Using ${cabalversion}."
108 $(ghc-getghc) -package "${cabalversion}" --make "${setupmodule}" -o setup \
109 || die "compiling ${setupmodule} failed"
110 }
111
112 cabal-haddock() {
113 ./setup haddock || die "setup haddock failed"
114 }
115
116 cabal-configure() {
117 if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
118 cabalconf="${cabalconf} --enable-executable-profiling";
119 cabalconf="${cabalconf} --enable-library-profiling"
120 fi
121
122 ./setup configure \
123 --ghc --prefix=/usr \
124 --with-compiler="$(ghc-getghc)" \
125 --with-hc-pkg="$(ghc-getghcpkg)" \
126 ${cabalconf} \
127 "$@" || die "setup configure failed"
128 }
129
130 cabal-build() {
131 ./setup build \
132 || die "setup build failed"
133 }
134
135 cabal-copy() {
136 ./setup copy \
137 --copy-prefix="${D}/usr" \
138 || die "setup copy failed"
139
140 # cabal is a bit eager about creating dirs,
141 # so remove them if they are empty
142 rmdir "${D}/usr/bin" 2> /dev/null
143
144 # GHC 6.4 has a bug in get/setPermission and Cabal 1.1.1 has
145 # no workaround.
146 # set the +x permission on executables
147 if [[ -d "${D}/usr/bin" ]] ; then
148 chmod +x "${D}/usr/bin/"*
149 fi
150 }
151
152 cabal-pkg() {
153 # This does not actually register since we're using /usr/bin/true instead
154 # of ghc-pkg. So it just leaves the .installed-pkg-config and we can
155 # register that ourselves (if it exists).
156 local result
157 local err
158
159 sed -i 's:ghc-pkg:/usr/bin/true:' .setup-config
160 result="$(./setup register 2>&1)"
161 err="$?"
162 if ! echo ${result} | grep -q "no library to register"; then
163 $(exit "${err}") || die "setup register failed"
164 fi
165 if [[ -f .installed-pkg-config ]]; then
166 ghc-setup-pkg .installed-pkg-config
167 ghc-install-pkg
168 fi
169 }
170
171 # exported function: check if cabal is correctly installed for
172 # the currently active ghc (we cannot guarantee this with portage)
173 haskell-cabal_pkg_setup() {
174 if [[ -z "${CABAL_BOOTSTRAP}" ]] && ! ghc-sanecabal "1.1.3"; then
175 eerror "The package dev-haskell/cabal is not correctly installed for"
176 eerror "the currently active version of ghc ($(ghc-version)). Please"
177 eerror "run ghc-updater or re-emerge dev-haskell/cabal."
178 die "cabal is not correctly installed"
179 fi
180 }
181
182 # exported function: cabal-style bootstrap configure and compile
183 cabal_src_compile() {
184 cabal-bootstrap
185 cabal-configure
186 cabal-build
187
188 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
189 cabal-haddock
190 fi
191 }
192 haskell-cabal_src_compile() {
193 cabal_src_compile
194 }
195
196 # exported function: cabal-style copy and register
197 cabal_src_install() {
198 cabal-copy
199 cabal-pkg
200
201 if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
202 dohtml dist/doc/html/*
203 fi
204 }
205 haskell-cabal_src_install() {
206 cabal_src_install
207 }
208
209 EXPORT_FUNCTIONS pkg_setup src_compile src_install

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