eclass: standardize prologue/epilogue

Closes: https://github.com/gentoo/gentoo/pull/30061
Signed-off-by: David Seifert <soap@gentoo.org>

68 files changed, 382 insertions, 374 deletions

diff --git a/eclass/acct-group.eclass b/eclass/acct-group.eclass
index f55c9f4c9587..47e2d278f73e 100644
--- a/eclass/acct-group.eclass
+++ b/eclass/acct-group.eclass
@@ -1,4 +1,4 @@
-# Copyright 2019-2022 Gentoo Authors
+# Copyright 2019-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: acct-group.eclass
@@ -36,9 +36,9 @@
 if [[ -z ${_ACCT_GROUP_ECLASS} ]]; then
 _ACCT_GROUP_ECLASS=1
 
-case ${EAPI:-0} in
+case ${EAPI} in
 	7|8) ;;
-	*) die "EAPI=${EAPI:-0} not supported";;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 inherit user-info
@@ -83,7 +83,6 @@ S=${WORKDIR}
 
 
 # << Phase functions >>
-EXPORT_FUNCTIONS pkg_pretend src_install pkg_preinst
 
 # @FUNCTION: acct-group_pkg_pretend
 # @DESCRIPTION:
@@ -184,3 +183,5 @@ acct-group_pkg_preinst() {
 }
 
 fi
+
+EXPORT_FUNCTIONS pkg_pretend src_install pkg_preinst
diff --git a/eclass/acct-user.eclass b/eclass/acct-user.eclass
index 14fda76ced73..145fdb41aaf8 100644
--- a/eclass/acct-user.eclass
+++ b/eclass/acct-user.eclass
@@ -1,4 +1,4 @@
-# Copyright 2019-2022 Gentoo Authors
+# Copyright 2019-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: acct-user.eclass
@@ -44,9 +44,9 @@
 if [[ -z ${_ACCT_USER_ECLASS} ]]; then
 _ACCT_USER_ECLASS=1
 
-case ${EAPI:-0} in
+case ${EAPI} in
 	7|8) ;;
-	*) die "EAPI=${EAPI:-0} not supported";;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 inherit user-info
@@ -212,8 +212,6 @@ eislocked() {
 }
 
 # << Phase functions >>
-EXPORT_FUNCTIONS pkg_pretend src_install pkg_preinst pkg_postinst \
-	pkg_prerm
 
 # @FUNCTION: acct-user_pkg_pretend
 # @DESCRIPTION:
@@ -490,3 +488,5 @@ acct-user_pkg_prerm() {
 }
 
 fi
+
+EXPORT_FUNCTIONS pkg_pretend src_install pkg_preinst pkg_postinst pkg_prerm
diff --git a/eclass/ada.eclass b/eclass/ada.eclass
index 39f76854e4fc..eea41c0cff48 100644
--- a/eclass/ada.eclass
+++ b/eclass/ada.eclass
@@ -28,7 +28,8 @@ case ${EAPI} in
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
-EXPORT_FUNCTIONS pkg_setup
+if [[ -z ${_ADA_ECLASS} ]]; then
+_ADA_ECLASS=1
 
 # @ECLASS_VARIABLE: ADA_DEPS
 # @OUTPUT_VARIABLE
@@ -523,3 +524,7 @@ ada_pkg_setup() {
 
 	[[ ${MERGE_TYPE} != binary ]] && ada_setup
 }
+
+fi
+
+EXPORT_FUNCTIONS pkg_setup
diff --git a/eclass/ant-tasks.eclass b/eclass/ant-tasks.eclass
index 98a35dd40c4d..d599238ba253 100644
--- a/eclass/ant-tasks.eclass
+++ b/eclass/ant-tasks.eclass
@@ -1,4 +1,4 @@
-# Copyright 2007-2022 Gentoo Authors
+# Copyright 2007-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: ant-tasks.eclass
@@ -18,14 +18,15 @@ case ${EAPI} in
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
+if [[ -z ${_ANT_TASKS_ECLASS} ]]; then
+_ANT_TASKS_ECLASS=1
+
 # we set ant-core dep ourselves, restricted
 JAVA_ANT_DISABLE_ANT_CORE_DEP=true
 # rewriting build.xml for are the testcases has no reason atm
 JAVA_PKG_BSFIX_ALL=no
 inherit java-pkg-2 java-ant-2
 
-EXPORT_FUNCTIONS src_unpack src_compile src_install
-
 # @ECLASS_VARIABLE: ANT_TASK_JDKVER
 # @PRE_INHERIT
 # @DESCRIPTION:
@@ -164,3 +165,7 @@ ant-tasks_src_install() {
 	dodir /usr/share/ant/lib
 	dosym /usr/share/${PN}/lib/${PN}.jar /usr/share/ant/lib/${PN}.jar
 }
+
+fi
+
+EXPORT_FUNCTIONS src_unpack src_compile src_install
diff --git a/eclass/autotools.eclass b/eclass/autotools.eclass
index e93338ac6b97..3a9119856abc 100644
--- a/eclass/autotools.eclass
+++ b/eclass/autotools.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: autotools.eclass
@@ -13,6 +13,11 @@
 # Note: We require GNU m4, as does autoconf.  So feel free to use any features
 # from the GNU version of m4 without worrying about other variants (i.e. BSD).
 
+case ${EAPI} in
+	6|7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
 if [[ ${_AUTOTOOLS_AUTO_DEPEND+set} == "set" ]] ; then
 	# See if we were included already, but someone changed the value
 	# of AUTOTOOLS_AUTO_DEPEND on us.  We could reload the entire
@@ -26,14 +31,7 @@ fi
 if [[ -z ${_AUTOTOOLS_ECLASS} ]] ; then
 _AUTOTOOLS_ECLASS=1
 
-case ${EAPI} in
-	6)
-		# Needed for eqawarn
-		inherit eutils
-		;;
-	7|8) ;;
-	*) die "${ECLASS}: EAPI ${EAPI} not supported" ;;
-esac
+[[ ${EAPI} == 6 ]] && inherit eqawarn
 
 inherit gnuconfig libtool
 
diff --git a/eclass/bzr.eclass b/eclass/bzr.eclass
index ba4ddad45f18..552990e3a581 100644
--- a/eclass/bzr.eclass
+++ b/eclass/bzr.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: bzr.eclass
@@ -21,15 +21,13 @@
 
 case ${EAPI} in
 	7|8) ;;
-	*) die "${ECLASS}: EAPI ${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 PROPERTIES+=" live"
 
 BDEPEND="dev-vcs/breezy"
 
-EXPORT_FUNCTIONS src_unpack
-
 # @ECLASS_VARIABLE: EBZR_STORE_DIR
 # @USER_VARIABLE
 # @DESCRIPTION:
@@ -255,3 +253,5 @@ bzr_fetch() {
 bzr_src_unpack() {
 	bzr_fetch
 }
+
+EXPORT_FUNCTIONS src_unpack
diff --git a/eclass/cargo.eclass b/eclass/cargo.eclass
index 911ddabced14..e3f36fc6ad9b 100644
--- a/eclass/cargo.eclass
+++ b/eclass/cargo.eclass
@@ -10,6 +10,11 @@
 # @SUPPORTED_EAPIS: 7 8
 # @BLURB: common functions and variables for cargo builds
 
+case ${EAPI} in
+	7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
 if [[ -z ${_CARGO_ECLASS} ]]; then
 _CARGO_ECLASS=1
 
@@ -17,15 +22,11 @@ _CARGO_ECLASS=1
 # https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md
 RUST_DEPEND="virtual/rust"
 
-case "${EAPI:-0}" in
-	0|1|2|3|4|5|6)
-		die "Unsupported EAPI=${EAPI:-0} (too old) for ${ECLASS}"
-		;;
+case ${EAPI} in
 	7)
 		# 1.37 added 'cargo vendor' subcommand and net.offline config knob
 		RUST_DEPEND=">=virtual/rust-1.37.0"
 		;;
-
 	8)
 		# 1.39 added --workspace
 		# 1.46 added --target dir
@@ -40,17 +41,11 @@ case "${EAPI:-0}" in
 			die "CRATES variable not defined"
 		fi
 		;;
-	*)
-		die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
-		;;
 esac
 
 inherit multiprocessing toolchain-funcs
 
-if [[ ! ${CARGO_OPTIONAL} ]]; then
-	BDEPEND="${RUST_DEPEND}"
-	EXPORT_FUNCTIONS src_unpack src_configure src_compile src_install src_test
-fi
+[[ ! ${CARGO_OPTIONAL} ]] && BDEPEND="${RUST_DEPEND}"
 
 IUSE="${IUSE} debug"
 
@@ -549,3 +544,7 @@ cargo_src_test() {
 }
 
 fi
+
+if [[ ! ${CARGO_OPTIONAL} ]]; then
+	EXPORT_FUNCTIONS src_unpack src_configure src_compile src_install src_test
+fi
diff --git a/eclass/check-reqs.eclass b/eclass/check-reqs.eclass
index ddf0a47775ae..f6409e9a02c5 100644
--- a/eclass/check-reqs.eclass
+++ b/eclass/check-reqs.eclass
@@ -1,4 +1,4 @@
-# Copyright 2004-2022 Gentoo Authors
+# Copyright 2004-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: check-reqs.eclass
@@ -40,12 +40,10 @@
 
 case ${EAPI} in
 	6|7|8) ;;
-	*) die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
-EXPORT_FUNCTIONS pkg_pretend pkg_setup
-
-if [[ ! ${_CHECK_REQS_ECLASS} ]]; then
+if [[ -z ${_CHECK_REQS_ECLASS} ]]; then
 _CHECK_REQS_ECLASS=1
 
 # @ECLASS_VARIABLE: CHECKREQS_MEMORY
@@ -467,3 +465,5 @@ _check-reqs_unsatisfied() {
 }
 
 fi
+
+EXPORT_FUNCTIONS pkg_pretend pkg_setup
diff --git a/eclass/chromium-2.eclass b/eclass/chromium-2.eclass
index cd4495767e58..0831f1f17aa5 100644
--- a/eclass/chromium-2.eclass
+++ b/eclass/chromium-2.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: chromium-2.eclass
@@ -11,7 +11,7 @@
 
 case ${EAPI} in
 	7|8) ;;
-	*) die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 inherit linux-info
diff --git a/eclass/cmake-multilib.eclass b/eclass/cmake-multilib.eclass
index 4dd3eab3cd28..c8fad94ac0a9 100644
--- a/eclass/cmake-multilib.eclass
+++ b/eclass/cmake-multilib.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: cmake-multilib.eclass
@@ -36,7 +36,7 @@ case ${EAPI} in
 				;;
 		esac
 		;;
-	*) die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 if [[ ${CMAKE_IN_SOURCE_BUILD} ]]; then
diff --git a/eclass/cmake.eclass b/eclass/cmake.eclass
index 46659867b1a8..76c63977aa07 100644
--- a/eclass/cmake.eclass
+++ b/eclass/cmake.eclass
@@ -20,7 +20,7 @@
 
 case ${EAPI} in
 	7|8) ;;
-	*) die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 if [[ -z ${_CMAKE_ECLASS} ]]; then
diff --git a/eclass/common-lisp-3.eclass b/eclass/common-lisp-3.eclass
index df624d51607c..6c87ef3db842 100644
--- a/eclass/common-lisp-3.eclass
+++ b/eclass/common-lisp-3.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: common-lisp-3.eclass
@@ -11,15 +11,15 @@
 # to provide a simple way to write ebuilds with these characteristics.
 
 case ${EAPI} in
-	[67]) ;;
-	*) die "EAPI=${EAPI:-0} is not supported" ;;
+	6|7) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
-inherit eutils
-
 if [[ -z ${_COMMON_LISP_3_ECLASS} ]]; then
 _COMMON_LISP_3_ECLASS=1
 
+inherit eutils
+
 # @ECLASS_VARIABLE: CLIMPLEMENTATIONS
 # @DESCRIPTION:
 # Common Lisp implementations
diff --git a/eclass/cuda.eclass b/eclass/cuda.eclass
index 81c8c1f2fc59..d885e77d0616 100644
--- a/eclass/cuda.eclass
+++ b/eclass/cuda.eclass
@@ -1,17 +1,6 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-case "${EAPI:-0}" in
-	[0-6])
-		die "Unsupported EAPI=${EAPI:-0} (too old) for ${ECLASS}"
-		;;
-	7|8)
-		;;
-	*)
-		die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
-		;;
-esac
-
 # @ECLASS: cuda.eclass
 # @MAINTAINER:
 # Gentoo Science Project <sci@gentoo.org>
@@ -25,10 +14,15 @@ esac
 # @EXAMPLE:
 # inherit cuda
 
+case ${EAPI} in
+	7|8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
 if [[ -z ${_CUDA_ECLASS} ]]; then
+_CUDA_ECLASS=1
 
 inherit flag-o-matic toolchain-funcs
-[[ ${EAPI} == [56] ]] && inherit eapi7-ver
 
 # @ECLASS_VARIABLE: NVCCFLAGS
 # @DESCRIPTION:
@@ -195,7 +189,6 @@ cuda_src_prepare() {
 	cuda_sanitize
 }
 
-EXPORT_FUNCTIONS src_prepare
-
-_CUDA_ECLASS=1
 fi
+
+EXPORT_FUNCTIONS src_prepare
diff --git a/eclass/cvs.eclass b/eclass/cvs.eclass
index a90a4d87f1c5..5ba2197f5174 100644
--- a/eclass/cvs.eclass
+++ b/eclass/cvs.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: cvs.eclass
@@ -13,14 +13,14 @@
 # cvs_src_unpack. If you find that you need to call the cvs_* functions
 # directly, I'd be interested to hear about it.
 
-if [[ -z ${_CVS_ECLASS} ]]; then
-_CVS_ECLASS=1
-
 case ${EAPI} in
 	7|8) ;;
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
+if [[ -z ${_CVS_ECLASS} ]]; then
+_CVS_ECLASS=1
+
 # TODO:
 
 # Implement more auth types (gserver?, kserver?)
@@ -536,6 +536,6 @@ cvs_src_unpack() {
 	einfo "CVS module ${ECVS_MODULE} is now in ${WORKDIR}"
 }
 
-EXPORT_FUNCTIONS src_unpack
-
 fi
+
+EXPORT_FUNCTIONS src_unpack
diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index 95911f912ca0..78f53658285e 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -44,9 +44,9 @@
 # For more information, please see the Python Guide:
 # https://projects.gentoo.org/python/guide/
 
-case ${EAPI:-0} in
+case ${EAPI} in
 	7|8) ;;
-	*) die "EAPI=${EAPI:-0} not supported";;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 # @ECLASS_VARIABLE: DISTUTILS_OPTIONAL
@@ -169,7 +169,8 @@ esac
 #     ${DISTUTILS_DEPS}"
 # @CODE
 
-if [[ ! ${_DISTUTILS_R1} ]]; then
+if [[ -z ${_DISTUTILS_R1_ECLASS} ]]; then
+_DISTUTILS_R1_ECLASS=1
 
 inherit multibuild multilib multiprocessing ninja-utils toolchain-funcs
 
@@ -179,14 +180,6 @@ else
 	inherit python-single-r1
 fi
 
-fi
-
-if [[ ! ${DISTUTILS_OPTIONAL} ]]; then
-	EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
-fi
-
-if [[ ! ${_DISTUTILS_R1} ]]; then
-
 _distutils_set_globals() {
 	local rdep bdep
 	if [[ ${DISTUTILS_USE_PEP517} ]]; then
@@ -2107,5 +2100,8 @@ distutils-r1_src_install() {
 	return ${ret}
 }
 
-_DISTUTILS_R1=1
+fi
+
+if [[ ! ${DISTUTILS_OPTIONAL} ]]; then
+	EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
 fi
diff --git a/eclass/docs.eclass b/eclass/docs.eclass
index cbf35068de3a..810b56460f3f 100644
--- a/eclass/docs.eclass
+++ b/eclass/docs.eclass
@@ -146,7 +146,7 @@ esac
 # will initialize a dummy git repository before compiling. A dependency
 # on dev-vcs/git is automatically added.
 
-if [[ ! ${_DOCS_ECLASS} ]]; then
+if [[ -z ${_DOCS_ECLASS} ]]; then
 _DOCS_ECLASS=1
 
 # For the python based DOCS_BUILDERS we need to inherit any python eclass
@@ -424,7 +424,7 @@ BDEPEND+=" doc? ( ${DOCS_DEPEND} )"
 # then put the compile function in the specific
 # python function, else docs_compile should be manually
 # added to src_compile
-if [[ ${_DISTUTILS_R1} && ( ${DOCS_BUILDER}="mkdocs" || ${DOCS_BUILDER}="sphinx" ) ]]; then
+if [[ ${_DISTUTILS_R1_ECLASS} && ( ${DOCS_BUILDER}="mkdocs" || ${DOCS_BUILDER}="sphinx" ) ]]; then
 	python_compile_all() { docs_compile; }
 fi
 
diff --git a/eclass/ecm.eclass b/eclass/ecm.eclass
index d9215a534398..9fca1647778c 100644
--- a/eclass/ecm.eclass
+++ b/eclass/ecm.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: ecm.eclass
@@ -23,7 +23,7 @@
 
 case ${EAPI} in
 	8) ;;
-	*) die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
 if [[ -z ${_ECM_ECLASS} ]]; then
diff --git a/eclass/elisp.eclass b/eclass/elisp.eclass
index 7c05948c0f57..9d157c23d5b1 100644
--- a/eclass/elisp.eclass
+++ b/eclass/elisp.eclass
@@ -1,4 +1,4 @@
-# Copyright 2002-2022 Gentoo Authors
+# Copyright 2002-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: elisp.eclass
@@ -69,9 +69,6 @@ case ${EAPI} in
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac
 
-EXPORT_FUNCTIONS src_{unpack,prepare,configure,compile,install} \
-	pkg_{setup,postinst,postrm}
-
 RDEPEND=">=app-editors/emacs-${NEED_EMACS}:*"
 BDEPEND="${RDEPEND}"
 
@@ -189,3 +186,6 @@ elisp_pkg_postinst() {
 elisp_pkg_postrm() {
 	elisp-site-regen
 }
+
+EXPORT_FUNCTIONS src_{unpack,prepare,configure,compile,install} \
+	pkg_{setup,postinst,postrm}
diff --git a/eclass/fcaps.eclass b/eclass/fcaps.eclass
index 349e72a63af2..477e1e954ab8 100644
--- a/