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authorRobin H. Johnson <robbat2@gentoo.org>2015-08-08 13:49:04 -0700
committerRobin H. Johnson <robbat2@gentoo.org>2015-08-08 17:38:18 -0700
commit56bd759df1d0c750a065b8c845e93d5dfa6b549d (patch)
tree3f91093cdb475e565ae857f1c5a7fd339e2d781e /eclass/ghc-package.eclass
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proj/gentoo: Initial commit
This commit represents a new era for Gentoo: Storing the gentoo-x86 tree in Git, as converted from CVS. This commit is the start of the NEW history. Any historical data is intended to be grafted onto this point. Creation process: 1. Take final CVS checkout snapshot 2. Remove ALL ChangeLog* files 3. Transform all Manifests to thin 4. Remove empty Manifests 5. Convert all stale $Header$/$Id$ CVS keywords to non-expanded Git $Id$ 5.1. Do not touch files with -kb/-ko keyword flags. Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> X-Thanks: Alec Warner <antarus@gentoo.org> - did the GSoC 2006 migration tests X-Thanks: Robin H. Johnson <robbat2@gentoo.org> - infra guy, herding this project X-Thanks: Nguyen Thai Ngoc Duy <pclouds@gentoo.org> - Former Gentoo developer, wrote Git features for the migration X-Thanks: Brian Harring <ferringb@gentoo.org> - wrote much python to improve cvs2svn X-Thanks: Rich Freeman <rich0@gentoo.org> - validation scripts X-Thanks: Patrick Lauer <patrick@gentoo.org> - Gentoo dev, running new 2014 work in migration X-Thanks: Michał Górny <mgorny@gentoo.org> - scripts, QA, nagging X-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed
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+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: ghc-package.eclass
+# @MAINTAINER:
+# "Gentoo's Haskell Language team" <haskell@gentoo.org>
+# @AUTHOR:
+# Original Author: Andres Loeh <kosmikus@gentoo.org>
+# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
+# @DESCRIPTION:
+# Helper eclass to handle ghc installation/upgrade/deinstallation process.
+
+inherit versionator
+
+# @FUNCTION: ghc-getghc
+# @DESCRIPTION:
+# returns the name of the ghc executable
+ghc-getghc() {
+ type -P ghc
+}
+
+# @FUNCTION: ghc-getghcpkg
+# @DESCRIPTION:
+# Internal function determines returns the name of the ghc-pkg executable
+ghc-getghcpkg() {
+ type -P ghc-pkg
+}
+
+# @FUNCTION: ghc-getghcpkgbin
+# @DESCRIPTION:
+# returns the name of the ghc-pkg binary (ghc-pkg
+# itself usually is a shell script, and we have to
+# bypass the script under certain circumstances);
+# for Cabal, we add an empty global package config file,
+# because for some reason the global package file
+# must be specified
+ghc-getghcpkgbin() {
+ if version_is_at_least "7.9.20141222" "$(ghc-version)"; then
+ # ghc-7.10 stopped supporting single-file database
+ local empty_db="${T}/empty.conf.d" ghc_pkg="$(ghc-libdir)/bin/ghc-pkg"
+ if [[ ! -d ${empty_db} ]]; then
+ "${ghc_pkg}" init "${empty_db}" || die "Failed to initialize empty global db"
+ fi
+ echo "$(ghc-libdir)/bin/ghc-pkg" "--global-package-db=${empty_db}"
+
+ elif version_is_at_least "7.7.20121101" "$(ghc-version)"; then
+ # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
+ # the wrapper script with the static flags
+ # was moved to bin/ subtree by:
+ # http://www.haskell.org/pipermail/cvs-ghc/2012-September/076546.html
+ echo '[]' > "${T}/empty.conf"
+ echo "$(ghc-libdir)/bin/ghc-pkg" "--global-package-db=${T}/empty.conf"
+
+ elif version_is_at_least "7.5.20120516" "$(ghc-version)"; then
+ echo '[]' > "${T}/empty.conf"
+ echo "$(ghc-libdir)/ghc-pkg" "--global-package-db=${T}/empty.conf"
+
+ else
+ echo '[]' > "${T}/empty.conf"
+ echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
+ fi
+}
+
+# @FUNCTION: ghc-version
+# @DESCRIPTION:
+# returns upstream version of ghc
+# as reported by '--numeric-version'
+# Examples: "7.10.2", "7.9.20141222"
+_GHC_VERSION_CACHE=""
+ghc-version() {
+ if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
+ _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
+ fi
+ echo "${_GHC_VERSION_CACHE}"
+}
+
+# @FUNCTION: ghc-pm-version
+# @DESCRIPTION:
+# returns package manager(PM) version of ghc
+# as reported by '$(best_version)'
+# Examples: "PM:7.10.2", "PM:7.10.2_rc1", "PM:7.8.4-r4"
+_GHC_PM_VERSION_CACHE=""
+ghc-pm-version() {
+ local pm_ghc_p
+
+ if [[ -z "${_GHC_PM_VERSION_CACHE}" ]]; then
+ pm_ghc_p=$(best_version dev-lang/ghc)
+ _GHC_PM_VERSION_CACHE="PM:${pm_ghc_p#dev-lang/ghc-}"
+ fi
+ echo "${_GHC_PM_VERSION_CACHE}"
+}
+
+# @FUNCTION: ghc-cabal-version
+# @DESCRIPTION:
+# return version of the Cabal library bundled with ghc
+ghc-cabal-version() {
+ if version_is_at_least "7.9.20141222" "$(ghc-version)"; then
+ # outputs in format: 'version: 1.18.1.5'
+ set -- `$(ghc-getghcpkg) --package-db=$(ghc-libdir)/package.conf.d.initial field Cabal version`
+ echo "$2"
+ else
+ local cabal_package=`echo "$(ghc-libdir)"/Cabal-*`
+ # /path/to/ghc/Cabal-${VER} -> ${VER}
+ echo "${cabal_package/*Cabal-/}"
+ fi
+}
+
+# @FUNCTION: ghc-sanecabal
+# @DESCRIPTION:
+# check if a standalone Cabal version is available for the
+# currently used ghc; takes minimal version of Cabal as
+# an optional argument
+ghc-sanecabal() {
+ local f
+ local version
+ if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
+ for f in $(ghc-confdir)/cabal-*; do
+ [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
+ done
+ return 1
+}
+# @FUNCTION: ghc-is-dynamic
+# @DESCRIPTION:
+# checks if ghc is built against dynamic libraries
+# binaries linked against GHC library (and using plugin loading)
+# have to be linked the same way:
+# https://ghc.haskell.org/trac/ghc/ticket/10301
+ghc-is-dynamic() {
+ $(ghc-getghc) --info | grep "GHC Dynamic" | grep -q "YES"
+}
+
+# @FUNCTION: ghc-supports-shared-libraries
+# @DESCRIPTION:
+# checks if ghc is built with support for building
+# shared libraries (aka '-dynamic' option)
+ghc-supports-shared-libraries() {
+ $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
+}
+
+# @FUNCTION: ghc-supports-threaded-runtime
+# @DESCRIPTION:
+# checks if ghc is built with support for threaded
+# runtime (aka '-threaded' option)
+ghc-supports-threaded-runtime() {
+ $(ghc-getghc) --info | grep "RTS ways" | grep -q "thr"
+}
+
+# @FUNCTION: ghc-supports-smp
+# @DESCRIPTION:
+# checks if ghc is built with support for multiple cores runtime
+ghc-supports-smp() {
+ $(ghc-getghc) --info | grep "Support SMP" | grep -q "YES"
+}
+
+# @FUNCTION: ghc-supports-interpreter
+# @DESCRIPTION:
+# checks if ghc has interpreter mode (aka GHCi)
+# It usually means that ghc supports for template haskell.
+ghc-supports-interpreter() {
+ $(ghc-getghc) --info | grep "Have interpreter" | grep -q "YES"
+}
+
+# @FUNCTION: ghc-supports-parallel-make
+# @DESCRIPTION:
+# checks if ghc has support for '--make -j' mode
+# The option was introduced in ghc-7.8-rc1.
+ghc-supports-parallel-make() {
+ $(ghc-getghc) --info | grep "Support parallel --make" | grep -q "YES"
+}
+
+# @FUNCTION: ghc-extractportageversion
+# @DESCRIPTION:
+# extract the version of a portage-installed package
+ghc-extractportageversion() {
+ local pkg
+ local version
+ pkg="$(best_version $1)"
+ version="${pkg#$1-}"
+ version="${version%-r*}"
+ version="${version%_pre*}"
+ echo "${version}"
+}
+
+# @FUNCTION: ghc-libdir
+# @DESCRIPTION:
+# returns the library directory
+_GHC_LIBDIR_CACHE=""
+ghc-libdir() {
+ if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
+ _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
+ fi
+ echo "${_GHC_LIBDIR_CACHE}"
+}
+
+# @FUNCTION: ghc-confdir
+# @DESCRIPTION:
+# returns the (Gentoo) library configuration directory, we
+# store here a hint for 'haskell-updater' about packages
+# installed for old ghc versions and current ones.
+ghc-confdir() {
+ echo "$(ghc-libdir)/gentoo"
+}
+
+# @FUNCTION: ghc-package-db
+# @DESCRIPTION:
+# returns the global package database directory
+ghc-package-db() {
+ echo "$(ghc-libdir)/package.conf.d"
+}
+
+# @FUNCTION: ghc-localpkgconfd
+# @DESCRIPTION:
+# returns the name of the local (package-specific)
+# package configuration file
+ghc-localpkgconfd() {
+ echo "${PF}.conf.d"
+}
+
+# @FUNCTION: ghc-package-exists
+# @DESCRIPTION:
+# tests if a ghc package exists
+ghc-package-exists() {
+ $(ghc-getghcpkg) describe "$1" > /dev/null 2>&1
+}
+
+# @FUNCTION: check-for-collisions
+# @DESCRIPTION: makes sure no packages
+# have the same version as initial package setup
+check-for-collisions() {
+ local localpkgconf=$1
+ local checked_pkg
+ local initial_pkg_db="$(ghc-libdir)/package.conf.d.initial"
+
+ for checked_pkg in `$(ghc-getghcpkgbin) -f "${localpkgconf}" list --simple-output`
+ do
+ # should return empty output
+ local collided=`$(ghc-getghcpkgbin) -f ${initial_pkg_db} list --simple-output "${checked_pkg}"`
+
+ if [[ -n ${collided} ]]; then
+ eerror "Cabal package '${checked_pkg}' is shipped with '$(ghc-pm-version)' ('$(ghc-version)')."
+ eerror "Ebuild author forgot an entry in CABAL_CORE_LIB_GHC_PV='${CABAL_CORE_LIB_GHC_PV}'."
+ eerror "Found in ${initial_pkg_db}."
+ die
+ fi
+ done
+}
+
+# @FUNCTION: ghc-install-pkg
+# @DESCRIPTION:
+# moves the local (package-specific) package configuration
+# file to its final destination
+ghc-install-pkg() {
+ local pkg_config_file=$1
+ local localpkgconf="${T}/$(ghc-localpkgconfd)"
+ local pkg_path pkg pkg_db="${D}/$(ghc-package-db)" hint_db="${D}/$(ghc-confdir)"
+
+ $(ghc-getghcpkgbin) init "${localpkgconf}" || die "Failed to initialize empty local db"
+ $(ghc-getghcpkgbin) -f "${localpkgconf}" update - --force \
+ < "${pkg_config_file}" || die "failed to register ${pkg}"
+
+ check-for-collisions "${localpkgconf}"
+
+ mkdir -p "${pkg_db}" || die
+ for pkg_path in "${localpkgconf}"/*.conf; do
+ pkg=$(basename "${pkg_path}")
+ cp "${pkg_path}" "${pkg_db}/${pkg}" || die
+ done
+
+ mkdir -p "${hint_db}" || die
+ cp "${pkg_config_file}" "${hint_db}/${PF}.conf" || die
+ chmod 0644 "${hint_db}/${PF}.conf" || die
+}
+
+# @FUNCTION: ghc-recache-db
+# @DESCRIPTION:
+# updates 'package.cache' binary cacne for registered '*.conf'
+# packages
+ghc-recache-db() {
+ einfo "Recaching GHC package DB"
+ $(ghc-getghcpkg) recache
+}
+
+# @FUNCTION: ghc-register-pkg
+# @DESCRIPTION:
+# registers all packages in the local (package-specific)
+# package configuration file
+ghc-register-pkg() {
+ ghc-recache-db
+}
+
+# @FUNCTION: ghc-reregister
+# @DESCRIPTION:
+# re-adds all available .conf files to the global
+# package conf file, to be used on a ghc reinstallation
+ghc-reregister() {
+ ghc-recache-db
+}
+
+# @FUNCTION: ghc-unregister-pkg
+# @DESCRIPTION:
+# unregisters a package configuration file
+ghc-unregister-pkg() {
+ ghc-recache-db
+}
+
+# @FUNCTION: ghc-pkgdeps
+# @DESCRIPTION:
+# exported function: loads a package dependency in a form
+# cabal_package version
+ghc-pkgdeps() {
+ echo $($(ghc-getghcpkg) describe "${1}") \
+ | sed \
+ -e '/depends/,/^.*:/ !d' \
+ -e 's/\(.*\)-\(.*\)-\(.*\)/\1 \2/' \
+ -e 's/^.*://g'
+}
+
+# @FUNCTION: ghc-package_pkg_postinst
+# @DESCRIPTION:
+# updates package.cache after package install
+ghc-package_pkg_postinst() {
+ ghc-recache-db
+}
+
+# @FUNCTION: ghc-package_pkg_prerm
+# @DESCRIPTION:
+# updates package.cache after package deinstall
+ghc-package_pkg_prerm() {
+ ewarn "ghc-package.eclass: 'ghc-package_pkg_prerm()' is a noop"
+ ewarn "ghc-package.eclass: consider 'haskell-cabal_pkg_postrm()' instead"
+}
+
+# @FUNCTION: ghc-package_pkg_postrm
+# @DESCRIPTION:
+# updates package.cache after package deinstall
+ghc-package_pkg_postrm() {
+ ghc-recache-db
+}