Include Apple's zsh distribution

.github/workflows/docker-build.yml

@@ -8,6 +8,7 @@ on:
     branches:
       - "main"
 jobs:
+# TODO macos-latest outside docker
   build:
     runs-on: ubuntu-latest
     continue-on-error: ${{ matrix.can_fail_build }}

variants/bash.sh

@@ -5,6 +5,7 @@
 
 shvr_current_bash ()
 {
+	# TODO https://github.com/apple-oss-distributions/bash
 	cat <<-@
 		bash_5.2.21
 		bash_5.1.16

variants/zsh.sh

@@ -8,6 +8,8 @@ shvr_current_zsh ()
 	cat <<-@
 		zsh_5.9
 		zsh_5.8.1
+		zsh_appl-100.120.1
+		zsh_appl-100
 	@
 }
 
@@ -25,53 +27,76 @@ shvr_targets_zsh ()
 		zsh_5.1.1
 		zsh_5.0.8
 		zsh_4.2.7
+		zsh_appl-100.120.1
+		zsh_appl-100
+		zsh_appl-97
+		zsh_appl-94
+		zsh_appl-92
+		zsh_appl-90
+		zsh_appl-87
+		zsh_appl-84.120.1
+		zsh_appl-84.100.1
+		zsh_appl-84
 	@
 }
 
 shvr_build_zsh ()
 {
 	version="$1"
-	version_major="${version%%\.*}"
-
-	if test "$version" = "$version_major"
-	then return 1
-	fi
-
-	version_minor="${version#$version_major\.}"
-	version_patch="${version_minor#*\.}"
-
-	if test "$version_patch" = "$version_minor"
-	then version_patch="0"
-	else version_minor="${version_minor%\.*}"
-	fi
-
+	fork_name="${1%%-*}"
+	fork_version="${1#*-}"
 	build_srcdir="${SHVR_DIR_SRC}/zsh/${version}"
 	mkdir -p "${build_srcdir}"
 
-	if 
-		test "$version_major" -gt 4 -a "${version_minor}" -gt 0 ||
-		test "$version_major" -gt 5
-	then
-		apt-get -y install \
-			wget gcc make autoconf libtinfo-dev xz-utils
-		wget -O "${build_srcdir}.tar.xz" \
-			"https://downloads.sourceforge.net/project/zsh/zsh/$version/zsh-$version.tar.xz"
-		tar --extract \
-			--file="${build_srcdir}.tar.xz" \
-			--strip-components=1 \
-			--directory="${build_srcdir}"
-	else
-		apt-get -y install \
-			wget gcc make autoconf libtinfo-dev
-		wget -O "${build_srcdir}.tar.gz" \
-			"https://downloads.sourceforge.net/project/zsh/zsh/$version/zsh-$version.tar.gz"
-		tar --extract \
-			--file="${build_srcdir}.tar.gz" \
-			--strip-components=1 \
-			--directory="${build_srcdir}"
-	fi
-
-	cd "${build_srcdir}"
+	case "$fork_name" in
+		*'appl')
+			build_innerdir="zsh"
+			archiver="gz"
+			version_major=-1
+			version_url="https://github.com/apple-oss-distributions/zsh/archive/refs/tags/zsh-$fork_version.tar.gz"
+
+			apt-get -y install \
+				wget gcc make autoconf libtinfo-dev
+			;;
+		*)
+			build_innerdir="."
+			version_major="${version%%\.*}"
+
+			if test "$version" = "$version_major"
+			then return 1
+			fi
+
+			version_minor="${version#$version_major\.}"
+			version_patch="${version_minor#*\.}"
+
+			if test "$version_patch" = "$version_minor"
+			then version_patch="0"
+			else version_minor="${version_minor%\.*}"
+			fi
+
+			if
+				test "$version_major" -gt 4 -a "${version_minor}" -gt 0 ||
+				test "$version_major" -gt 5
+			then
+				archiver="xz"
+				apt-get -y install \
+					wget gcc make autoconf libtinfo-dev xz-utils
+			else
+				archiver="gz"
+				apt-get -y install \
+					wget gcc make autoconf libtinfo-dev
+			fi
+
+			version_url="https://downloads.sourceforge.net/project/zsh/zsh/$version/zsh-$version.tar.$archiver"
+			;;
+	esac
+	wget -O "${build_srcdir}.tar.$archiver" "$version_url"
+	tar --extract \
+		--file="${build_srcdir}.tar.$archiver" \
+		--strip-components=1 \
+		--directory="${build_srcdir}"
+
+	cd "${build_srcdir}/${build_innerdir}"
 
 	./Util/preconfig
 	./configure \