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641 lines
18 KiB
641 lines
18 KiB
# Copyright 1999-2013 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/haskell-cabal.eclass,v 1.41 2013/07/29 12:31:35 slyfox Exp $
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# @ECLASS: haskell-cabal.eclass
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# @MAINTAINER:
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# Haskell herd <haskell@gentoo.org>
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# @AUTHOR:
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# Original author: Andres Loeh <kosmikus@gentoo.org>
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# Original author: Duncan Coutts <dcoutts@gentoo.org>
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# @BLURB: for packages that make use of the Haskell Common Architecture for Building Applications and Libraries (cabal)
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# @DESCRIPTION:
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# Basic instructions:
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#
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# Before inheriting the eclass, set CABAL_FEATURES to
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# reflect the tools and features that the package makes
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# use of.
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#
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# Currently supported features:
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# haddock -- for documentation generation
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# hscolour -- generation of colourised sources
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# hoogle -- generation of documentation search index
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# alex -- lexer/scanner generator
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# happy -- parser generator
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# c2hs -- C interface generator
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# cpphs -- C preprocessor clone written in Haskell
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# profile -- if package supports to build profiling-enabled libraries
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# bootstrap -- only used for the cabal package itself
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# bin -- the package installs binaries
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# lib -- the package installs libraries
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# nocabaldep -- don't add dependency on cabal.
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# only used for packages that _must_ not pull the dependency
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# on cabal, but still use this eclass (e.g. haskell-updater).
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# test-suite -- add support for cabal test-suites (introduced in Cabal-1.8)
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inherit eutils ghc-package multilib
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# @ECLASS-VARIABLE: CABAL_EXTRA_CONFIGURE_FLAGS
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# @DESCRIPTION:
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# User-specified additional parameters passed to 'setup configure'.
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# example: /etc/portage/make.conf: CABAL_EXTRA_CONFIGURE_FLAGS=--enable-shared
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: ${CABAL_EXTRA_CONFIGURE_FLAGS:=}
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# @ECLASS-VARIABLE: CABAL_EXTRA_BUILD_FLAGS
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# @DESCRIPTION:
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# User-specified additional parameters passed to 'setup build'.
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# example: /etc/portage/make.conf: CABAL_EXTRA_BUILD_FLAGS=-v
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: ${CABAL_EXTRA_BUILD_FLAGS:=}
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# @ECLASS-VARIABLE: GHC_BOOTSTRAP_FLAGS
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# @DESCRIPTION:
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# User-specified additional parameters for ghc when building
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# _only_ 'setup' binary bootstrap.
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# example: /etc/portage/make.conf: GHC_BOOTSTRAP_FLAGS=-dynamic to make
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# linking 'setup' faster.
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: ${GHC_BOOTSTRAP_FLAGS:=}
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# @ECLASS-VARIABLE: CABAL_DEBUG_LOOSENING
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# @DESCRIPTION:
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# Show debug output for 'cabal_chdeps' function if set.
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# Needs working 'diff'.
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: ${CABAL_DEBUG_LOOSENING:=}
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HASKELL_CABAL_EXPF="pkg_setup src_compile src_test src_install"
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case "${EAPI:-0}" in
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2|3|4|5) HASKELL_CABAL_EXPF+=" src_configure" ;;
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*) ;;
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esac
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EXPORT_FUNCTIONS ${HASKELL_CABAL_EXPF}
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for feature in ${CABAL_FEATURES}; do
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case ${feature} in
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haddock) CABAL_USE_HADDOCK=yes;;
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hscolour) CABAL_USE_HSCOLOUR=yes;;
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hoogle) CABAL_USE_HOOGLE=yes;;
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alex) CABAL_USE_ALEX=yes;;
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happy) CABAL_USE_HAPPY=yes;;
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c2hs) CABAL_USE_C2HS=yes;;
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cpphs) CABAL_USE_CPPHS=yes;;
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profile) CABAL_USE_PROFILE=yes;;
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bootstrap) CABAL_BOOTSTRAP=yes;;
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bin) CABAL_HAS_BINARIES=yes;;
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lib) CABAL_HAS_LIBRARIES=yes;;
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nocabaldep) CABAL_FROM_GHC=yes;;
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test-suite) CABAL_TEST_SUITE=yes;;
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*) CABAL_UNKNOWN="${CABAL_UNKNOWN} ${feature}";;
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esac
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done
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if [[ -n "${CABAL_USE_HADDOCK}" ]]; then
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IUSE="${IUSE} doc"
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# don't require depend on itself to build docs.
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# ebuild bootstraps docs from just built binary
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[[ ${CATEGORY}/${PN} = "dev-haskell/haddock" ]] || DEPEND="${DEPEND} doc? ( dev-haskell/haddock )"
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fi
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if [[ -n "${CABAL_USE_HSCOLOUR}" ]]; then
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IUSE="${IUSE} hscolour"
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DEPEND="${DEPEND} hscolour? ( dev-haskell/hscolour )"
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fi
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if [[ -n "${CABAL_USE_ALEX}" ]]; then
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DEPEND="${DEPEND} dev-haskell/alex"
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fi
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then
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DEPEND="${DEPEND} dev-haskell/happy"
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fi
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if [[ -n "${CABAL_USE_C2HS}" ]]; then
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DEPEND="${DEPEND} dev-haskell/c2hs"
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fi
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then
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DEPEND="${DEPEND} dev-haskell/cpphs"
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fi
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if [[ -n "${CABAL_USE_PROFILE}" ]]; then
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IUSE="${IUSE} profile"
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fi
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if [[ -n "${CABAL_TEST_SUITE}" ]]; then
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IUSE="${IUSE} test"
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fi
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# We always use a standalone version of Cabal, rather than the one that comes
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# with GHC. But of course we can't depend on cabal when building cabal itself.
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if [[ -z ${CABAL_MIN_VERSION} ]]; then
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CABAL_MIN_VERSION=1.1.4
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fi
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]]; then
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DEPEND="${DEPEND} >=dev-haskell/cabal-${CABAL_MIN_VERSION}"
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fi
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# returns the version of cabal currently in use
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_CABAL_VERSION_CACHE=""
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cabal-version() {
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if [[ -z "${_CABAL_VERSION_CACHE}" ]]; then
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if [[ "${CABAL_BOOTSTRAP}" ]]; then
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# We're bootstrapping cabal, so the cabal version is the version
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# of this package itself.
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_CABAL_VERSION_CACHE="${PV}"
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elif [[ "${CABAL_FROM_GHC}" ]]; then
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local cabal_package=$(echo "$(ghc-libdir)"/Cabal-*)
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# /path/to/ghc/Cabal-${VER} -> ${VER}
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_CABAL_VERSION_CACHE="${cabal_package/*Cabal-/}"
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else
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# We ask portage, not ghc, so that we only pick up
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# portage-installed cabal versions.
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_CABAL_VERSION_CACHE="$(ghc-extractportageversion dev-haskell/cabal)"
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fi
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fi
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echo "${_CABAL_VERSION_CACHE}"
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}
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cabal-bootstrap() {
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local setupmodule
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local cabalpackage
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if [[ -f "${S}/Setup.lhs" ]]; then
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setupmodule="${S}/Setup.lhs"
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elif [[ -f "${S}/Setup.hs" ]]; then
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setupmodule="${S}/Setup.hs"
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else
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die "No Setup.lhs or Setup.hs found"
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fi
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if [[ -z "${CABAL_BOOTSTRAP}" && -z "${CABAL_FROM_GHC}" ]] && ! ghc-sanecabal "${CABAL_MIN_VERSION}"; then
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eerror "The package dev-haskell/cabal is not correctly installed for"
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eerror "the currently active version of ghc ($(ghc-version)). Please"
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eerror "run haskell-updater or re-build dev-haskell/cabal."
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die "cabal is not correctly installed"
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fi
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# We build the setup program using the latest version of
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# cabal that we have installed
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cabalpackage=Cabal-$(cabal-version)
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einfo "Using cabal-$(cabal-version)."
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make_setup() {
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set -- -package "${cabalpackage}" --make "${setupmodule}" \
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${GHC_BOOTSTRAP_FLAGS} \
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"$@" \
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-o setup
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echo $(ghc-getghc) ${HCFLAGS} "$@"
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$(ghc-getghc) "$@"
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}
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if $(ghc-supports-shared-libraries); then
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# # some custom build systems might use external libraries,
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# # for which we don't have shared libs, so keep static fallback
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# bug #411789, http://hackage.haskell.org/trac/ghc/ticket/5743#comment:3
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# http://hackage.haskell.org/trac/ghc/ticket/7062
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# http://hackage.haskell.org/trac/ghc/ticket/3072
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# ghc does not set RPATH for extralibs, thus we do it ourselves by hands
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einfo "Prepending $(ghc-libdir) to LD_LIBRARY_PATH"
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if [[ ${CHOST} != *-darwin* ]]; then
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LD_LIBRARY_PATH="$(ghc-libdir)${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"
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export LD_LIBRARY_PATH
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else
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DYLD_LIBRARY_PATH="$(ghc-libdir)${DYLD_LIBRARY_PATH:+:}${DYLD_LIBRARY_PATH}"
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export DYLD_LIBRARY_PATH
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fi
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{ make_setup -dynamic "$@" && ./setup --help >/dev/null; } ||
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make_setup "$@" || die "compiling ${setupmodule} failed"
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else
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make_setup "$@" || die "compiling ${setupmodule} failed"
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fi
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}
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cabal-mksetup() {
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local setupdir
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if [[ -n $1 ]]; then
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setupdir=$1
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else
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setupdir=${S}
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fi
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rm -f "${setupdir}"/Setup.{lhs,hs}
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echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
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> $setupdir/Setup.hs || die "failed to create default Setup.hs"
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}
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cabal-hscolour() {
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set -- hscolour "$@"
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echo ./setup "$@"
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./setup "$@" || die "setup hscolour failed"
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}
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cabal-haddock() {
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set -- haddock "$@"
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echo ./setup "$@"
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./setup "$@" || die "setup haddock failed"
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}
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cabal-hscolour-haddock() {
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# --hyperlink-source implies calling 'setup hscolour'
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set -- haddock --hyperlink-source
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echo ./setup "$@"
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./setup "$@" --hyperlink-source || die "setup haddock --hyperlink-source failed"
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}
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cabal-die-if-nonempty() {
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local breakage_type=$1
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shift
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[[ "${#@}" == 0 ]] && return 0
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eerror "Detected ${breakage_type} packages: ${@}"
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die "//==-- Please, run 'haskell-updater' to fix ${breakage_type} packages --==//"
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}
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cabal-show-brokens() {
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# pretty-printer
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$(ghc-getghcpkg) check 2>&1 \
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| egrep -v '^Warning: haddock-(html|interfaces): ' \
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| egrep -v '^Warning: include-dirs: '
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cabal-die-if-nonempty 'broken' \
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$($(ghc-getghcpkg) check --simple-output)
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}
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cabal-show-old() {
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cabal-die-if-nonempty 'outdated' \
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$("${EPREFIX}"/usr/sbin/haskell-updater --quiet --upgrade --list-only)
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}
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cabal-show-brokens-and-die() {
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cabal-show-brokens
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cabal-show-old
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die "$@"
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}
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cabal-configure() {
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has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
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if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
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cabalconf="${cabalconf} --with-haddock=${EPREFIX}/usr/bin/haddock"
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fi
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if [[ -n "${CABAL_USE_PROFILE}" ]] && use profile; then
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cabalconf="${cabalconf} --enable-library-profiling"
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fi
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if [[ -n "${CABAL_USE_ALEX}" ]]; then
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cabalconf="${cabalconf} --with-alex=${EPREFIX}/usr/bin/alex"
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fi
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if [[ -n "${CABAL_USE_HAPPY}" ]]; then
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cabalconf="${cabalconf} --with-happy=${EPREFIX}/usr/bin/happy"
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fi
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if [[ -n "${CABAL_USE_C2HS}" ]]; then
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cabalconf="${cabalconf} --with-c2hs=${EPREFIX}/usr/bin/c2hs"
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fi
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if [[ -n "${CABAL_USE_CPPHS}" ]]; then
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cabalconf="${cabalconf} --with-cpphs=${EPREFIX}/usr/bin/cpphs"
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fi
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if [[ -n "${CABAL_TEST_SUITE}" ]]; then
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cabalconf="${cabalconf} $(use_enable test tests)"
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fi
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local option
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for option in ${HCFLAGS}
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do
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cabalconf+=" --ghc-option=$option"
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done
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# Building GHCi libs on ppc64 causes "TOC overflow".
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if use ppc64; then
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cabalconf="${cabalconf} --disable-library-for-ghci"
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fi
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# currently cabal does not respect CFLAGS and LDFLAGS on it's own (bug #333217)
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# so translate LDFLAGS to ghc parameters (without filtering)
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local flag
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for flag in $LDFLAGS; do cabalconf="${cabalconf} --ghc-option=-optl$flag"; done
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# disable executable stripping for the executables, as portage will
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# strip by itself, and pre-stripping gives a QA warning.
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# cabal versions previous to 1.4 does not strip executables, and does
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# not accept the flag.
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# this fixes numerous bugs, amongst them;
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# bug #251881, bug #251882, bug #251884, bug #251886, bug #299494
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cabalconf="${cabalconf} --disable-executable-stripping"
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cabalconf="${cabalconf} --docdir=${EPREFIX}/usr/share/doc/${PF}"
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# As of Cabal 1.2, configure is quite quiet. For diagnostic purposes
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# it's better if the configure chatter is in the build logs:
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cabalconf="${cabalconf} --verbose"
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# We build shared version of our Cabal where ghc ships it's shared
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# version of it. We will link ./setup as dynamic binary againt Cabal later.
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[[ ${CATEGORY}/${PN} == "dev-haskell/cabal" ]] && \
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$(ghc-supports-shared-libraries) && \
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cabalconf="${cabalconf} --enable-shared"
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if $(ghc-supports-shared-libraries); then
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# maybe a bit lower
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if $(ghc-supports-dynamic-by-default); then
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cabalconf="${cabalconf} --enable-shared"
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fi
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fi
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set -- configure \
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--ghc --prefix="${EPREFIX}"/usr \
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--with-compiler="$(ghc-getghc)" \
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--with-hc-pkg="$(ghc-getghcpkg)" \
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--prefix="${EPREFIX}"/usr \
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--libdir="${EPREFIX}"/usr/$(get_libdir) \
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--libsubdir=${P}/ghc-$(ghc-version) \
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--datadir="${EPREFIX}"/usr/share/ \
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--datasubdir=${P}/ghc-$(ghc-version) \
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${cabalconf} \
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${CABAL_CONFIGURE_FLAGS} \
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${CABAL_EXTRA_CONFIGURE_FLAGS} \
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"$@"
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echo ./setup "$@"
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./setup "$@" || cabal-show-brokens-and-die "setup configure failed"
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}
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cabal-build() {
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unset LANG LC_ALL LC_MESSAGES
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set -- build ${CABAL_EXTRA_BUILD_FLAGS} "$@"
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echo ./setup "$@"
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./setup "$@" \
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|| die "setup build failed"
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}
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cabal-copy() {
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has "${EAPI:-0}" 0 1 2 && ! use prefix && ED=${D}
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set -- copy --destdir="${D}" "$@"
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echo ./setup "$@"
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./setup "$@" || die "setup copy failed"
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# cabal is a bit eager about creating dirs,
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# so remove them if they are empty
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rmdir "${ED}/usr/bin" 2> /dev/null
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}
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cabal-pkg() {
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# This does not actually register since we're using true instead
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# of ghc-pkg. So it just leaves the .conf file and we can
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# register that ourselves (if it exists).
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if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
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# Newer cabal can generate a package conf for us:
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./setup register --gen-pkg-config="${T}/${P}.conf"
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ghc-setup-pkg "${T}/${P}.conf"
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ghc-install-pkg
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fi
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}
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# Some cabal libs are bundled along with some versions of ghc
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# eg filepath-1.0 comes with ghc-6.6.1
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# by putting CABAL_CORE_LIB_GHC_PV="6.6.1" in an ebuild we are declaring that
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# when building with this version of ghc, the ebuild is a dummy that is it will
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# install no files since the package is already included with ghc.
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# However portage still records the dependency and we can upgrade the package
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# to a later one that's not included with ghc.
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# You can also put a space separated list, eg CABAL_CORE_LIB_GHC_PV="6.6 6.6.1".
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cabal-is-dummy-lib() {
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for version in ${CABAL_CORE_LIB_GHC_PV[*]}; do
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[[ "$(ghc-version)" == ${version} ]] && return 0
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done
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return 1
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}
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# exported function: check if cabal is correctly installed for
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# the currently active ghc (we cannot guarantee this with portage)
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haskell-cabal_pkg_setup() {
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if [[ -n ${CABAL_HAS_LIBRARIES} ]]; then
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[[ ${RDEPEND} == *dev-lang/ghc* ]] || eqawarn "QA Notice: A library does not have runtime dependency on dev-lang/ghc."
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fi
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if [[ -z "${CABAL_HAS_BINARIES}" ]] && [[ -z "${CABAL_HAS_LIBRARIES}" ]]; then
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eqawarn "QA Notice: Neither bin nor lib are in CABAL_FEATURES."
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fi
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if [[ -n "${CABAL_UNKNOWN}" ]]; then
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eqawarn "QA Notice: Unknown entry in CABAL_FEATURES: ${CABAL_UNKNOWN}"
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fi
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if cabal-is-dummy-lib; then
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einfo "${P} is included in ghc-${CABAL_CORE_LIB_GHC_PV}, nothing to install."
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fi
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}
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haskell-cabal_src_configure() {
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cabal-is-dummy-lib && return
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pushd "${S}" > /dev/null
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cabal-bootstrap
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cabal-configure "$@"
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popd > /dev/null
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}
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# exported function: nice alias
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cabal_src_configure() {
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haskell-cabal_src_configure "$@"
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}
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# exported function: cabal-style bootstrap configure and compile
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cabal_src_compile() {
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# it's a common mistake when one bumps ebuild to EAPI="2" (and upper)
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# and forgets to separate src_compile() to src_configure()/src_compile().
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# Such error leads to default src_configure and we lose all passed flags.
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if ! has "${EAPI:-0}" 0 1; then
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local passed_flag
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|
for passed_flag in "$@"; do
|
|
[[ ${passed_flag} == --flags=* ]] && \
|
|
eqawarn "QA Notice: Cabal option '${passed_flag}' has effect only in src_configure()"
|
|
done
|
|
fi
|
|
|
|
cabal-is-dummy-lib && return
|
|
|
|
has src_configure ${HASKELL_CABAL_EXPF} || haskell-cabal_src_configure "$@"
|
|
cabal-build
|
|
|
|
if [[ -n "${CABAL_USE_HADDOCK}" ]] && use doc; then
|
|
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
|
|
# hscolour and haddock
|
|
cabal-hscolour-haddock
|
|
else
|
|
# just haddock
|
|
cabal-haddock
|
|
fi
|
|
else
|
|
if [[ -n "${CABAL_USE_HSCOLOUR}" ]] && use hscolour; then
|
|
# just hscolour
|
|
cabal-hscolour
|
|
fi
|
|
fi
|
|
}
|
|
|
|
haskell-cabal_src_compile() {
|
|
pushd "${S}" > /dev/null
|
|
|
|
cabal_src_compile "$@"
|
|
|
|
popd > /dev/null
|
|
}
|
|
|
|
haskell-cabal_src_test() {
|
|
pushd "${S}" > /dev/null
|
|
|
|
if cabal-is-dummy-lib; then
|
|
einfo ">>> No tests for dummy library: ${CATEGORY}/${PF}"
|
|
else
|
|
einfo ">>> Test phase [cabal test]: ${CATEGORY}/${PF}"
|
|
set -- test "$@"
|
|
echo ./setup "$@"
|
|
./setup "$@" || die "cabal test failed"
|
|
fi
|
|
|
|
popd > /dev/null
|
|
}
|
|
|
|
# exported function: cabal-style copy and register
|
|
cabal_src_install() {
|
|
has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
|
|
|
|
if ! cabal-is-dummy-lib; then
|
|
cabal-copy
|
|
cabal-pkg
|
|
fi
|
|
|
|
# create a dummy local package conf file for haskell-updater
|
|
# if it does not exist (dummy libraries and binaries w/o libraries)
|
|
local ghc_confdir_with_prefix="$(ghc-confdir)"
|
|
# remove EPREFIX
|
|
dodir ${ghc_confdir_with_prefix#${EPREFIX}}
|
|
local conf_file="${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
|
|
[[ -e $conf_file ]] || echo '[]' > "$conf_file" || die
|
|
|
|
# make sure installed packages do not destroy ghc's
|
|
# bundled packages
|
|
local initial_pkg_db=${ROOT}/$(ghc-libdir)/package.conf.d.initial
|
|
if [[ -e ${initial_pkg_db} ]]; then
|
|
local checked_pkg
|
|
for checked_pkg in $(ghc-listpkg "${conf_file}")
|
|
do
|
|
local initial_pkg
|
|
for initial_pkg in $(ghc-listpkg "${initial_pkg_db}"); do
|
|
if [[ ${checked_pkg} = ${initial_pkg} ]]; then
|
|
eerror "Package ${checked_pkg} is shipped with $(ghc-version)."
|
|
eerror "Ebuild author forgot CABAL_CORE_LIB_GHC_PV entry."
|
|
eerror "Found in ${initial_pkg_db}."
|
|
die
|
|
fi
|
|
done
|
|
done
|
|
fi
|
|
}
|
|
|
|
haskell-cabal_src_install() {
|
|
pushd "${S}" > /dev/null
|
|
|
|
cabal_src_install
|
|
|
|
popd > /dev/null
|
|
}
|
|
|
|
# @FUNCTION: cabal_flag
|
|
# @DESCRIPTION:
|
|
# ebuild.sh:use_enable() taken as base
|
|
#
|
|
# Usage examples:
|
|
#
|
|
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gui)
|
|
# leads to "--flags=gui" or "--flags=-gui" (useflag 'gui')
|
|
#
|
|
# CABAL_CONFIGURE_FLAGS=$(cabal_flag gtk gui)
|
|
# also leads to "--flags=gui" or " --flags=-gui" (useflag 'gtk')
|
|
#
|
|
cabal_flag() {
|
|
if [[ -z "$1" ]]; then
|
|
echo "!!! cabal_flag() called without a parameter." >&2
|
|
echo "!!! cabal_flag() <USEFLAG> [<cabal_flagname>]" >&2
|
|
return 1
|
|
fi
|
|
|
|
local UWORD=${2:-$1}
|
|
|
|
if use "$1"; then
|
|
echo "--flags=${UWORD}"
|
|
else
|
|
echo "--flags=-${UWORD}"
|
|
fi
|
|
|
|
return 0
|
|
}
|
|
|
|
# @FUNCTION: cabal_chdeps
|
|
# @DESCRIPTION:
|
|
# Allows easier patching of $CABAL_FILE (${S}/${PN}.cabal by default)
|
|
# depends
|
|
#
|
|
# Accepts argument list as pairs of substitutions: <from-string> <to-string>...
|
|
#
|
|
# Dies on error.
|
|
#
|
|
# Usage examples:
|
|
#
|
|
# src_prepare() {
|
|
# cabal_chdeps \
|
|
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7' \
|
|
# 'containers ==0.4.*' 'containers >= 0.4 && < 0.6'
|
|
#}
|
|
# or
|
|
# src_prepare() {
|
|
# CABAL_FILE=${S}/${MY_PN}.cabal cabal_chdeps \
|
|
# 'base >= 4.2 && < 4.6' 'base >= 4.2 && < 4.7'
|
|
# CABAL_FILE=${S}/${MY_PN}-tools.cabal cabal_chdeps \
|
|
# 'base == 3.*' 'base >= 4.2 && < 4.7'
|
|
#}
|
|
#
|
|
cabal_chdeps() {
|
|
local cf=${CABAL_FILE:-${S}/${PN}.cabal}
|
|
local from_ss # ss - substring
|
|
local to_ss
|
|
local orig_c # c - contents
|
|
local new_c
|
|
|
|
[[ -f $cf ]] || die "cabal file '$cf' does not exist"
|
|
|
|
orig_c=$(< "$cf")
|
|
|
|
while :; do
|
|
from_pat=$1
|
|
to_str=$2
|
|
|
|
[[ -n ${from_pat} ]] || break
|
|
[[ -n ${to_str} ]] || die "'${from_str}' does not have 'to' part"
|
|
|
|
einfo "CHDEP: '${from_pat}' -> '${to_str}'"
|
|
|
|
# escape pattern-like symbols
|
|
from_pat=${from_pat//\*/\\*}
|
|
from_pat=${from_pat//\[/\\[}
|
|
|
|
new_c=${orig_c//${from_pat}/${to_str}}
|
|
|
|
if [[ -n $CABAL_DEBUG_LOOSENING ]]; then
|
|
echo "${orig_c}" >"${T}/${cf}".pre
|
|
echo "${new_c}" >"${T}/${cf}".post
|
|
diff -u "${T}/${cf}".{pre,post}
|
|
fi
|
|
|
|
[[ "${orig_c}" == "${new_c}" ]] && die "no trigger for '${from_pat}'"
|
|
orig_c=${new_c}
|
|
shift
|
|
shift
|
|
done
|
|
|
|
echo "${new_c}" > "$cf" ||
|
|
die "failed to update"
|
|
}
|