initial commit

.gitignore

@@ -0,0 +1,3 @@
+PKGBUILD
+*PKGBUILD
+.SRCINFO

action.yml

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+name: "Make SRCINFO"
+description: "Generate .SRCINFO file from PKGBUILD"
+inputs:
+  pkgbuild-file:
+    description: "Path to PKGBUILD file"
+  srcinfo-file:
+    description: "Path to .SRCINFO file to be created"
+    default: ".SRCINFO"
+outputs:
+  version:
+    description: "Version of the package"
+runs:
+  using: "composite"
+  steps:
+    - name: "Make SRCINFO"
+      shell: bash
+      run: "./mksrcinfo.sh $PKGBUILD_PATH > $SRCINFO_PATH"
+      env:
+        PKGBUILD_PATH: ${{ inputs.pkgbuild-file }}
+        SRCINFO_PATH: ${{ inputs.srcinfo-file }}
+    - name: "Get version"
+      shell: bash
+      run: "grep 'pkgver = ' $SRCINFO_PATH | sed 's/ = /=/' >> $GITHUB_OUTPUT"
+      env:
+        SRCINFO_PATH: ${{ inputs.srcinfo-file }}

mksrcinfo.sh

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+#!/usr/bin/bash
+
+# declare known fields
+base_fields=(pkgver pkgrel epoch)
+section_scalar_fields=(pkgdesc url install changelog)
+section_arch_fields=(source depends checkdepends makedepends optdepends provides conflicts replaces md5sums sha1sums sha224sums sha256sums sha384sums sha512sums)
+section_array_fields=(arch groups license noextract options backup validpgpkeys "${section_arch_fields[@]}")
+section_fields=("${section_scalar_fields[@]}" "${section_array_fields[@]}")
+
+# load PKGBUILD
+source "${1:-./PKGBUILD}"
+
+# check if a variable is an array
+is_array() {
+	[[ "$(declare -p $1)" =~ "declare -a" ]]
+}
+
+# unset all field variables
+clear_fields() {
+	for field in "${section_fields[@]}"; do
+		eval "unset $field"
+	done
+}
+
+# print a field with indentation
+print_field() {
+	printf "\t$1 = %s\n" "$2"	
+}
+
+# print a scalar field
+print_scalar_field() {
+	eval "[[ -v "$1" ]] && print_field '$1' \"\${$1}\""
+}
+
+# print all values of an array field
+print_array_field() {
+	if ! [[ -v "$1" ]]; then return; fi
+	if ! is_array "$1"; then
+		print_scalar_field "$1"
+	fi
+	local f
+	eval "for f in \"\${$1[@]}\"; do print_field "$1" \"\$f\"; done" 
+}
+
+# load section content from its package function
+load_section_content() {
+	if [[ -n $1 ]]; then
+		suffix="_$1"
+	else
+		suffix=""
+	fi
+	if [[ ! "$(type -t "package$suffix")" = function ]]; then return; fi
+	# eval only variable assignments in package function
+	while read -r line; do
+		eval "$line"
+	done < <(declare -f "package$suffix" | grep -E '^[[:space:]]*(declare +)?[[:alnum:]_]*=')
+}
+
+# print fields for a section
+print_section_content() {
+	for field in "${section_scalar_fields[@]}"; do
+		print_scalar_field "$field"
+	done
+
+	for field in "${section_array_fields[@]}"; do
+		print_array_field "$field"
+	done
+
+	for a in "${arch[@]}"; do
+		for field in "${section_arch_fields[@]}"; do
+			print_array_field "${field}_$a"
+		done
+	done
+}
+
+# main
+
+# determine pkgbase
+if ! is_array pkgname; then
+	pkgname=($pkgname)
+fi
+printf "pkgbase = %s\n" "${pkgbase:-${pkgname[0]}}"
+
+# run pkgver function if needed
+if [[ ! -v pkgver ]] && [[ "$(type -t pkgver)" = function ]]; then
+	pkgver="$(pkgver)"
+fi
+
+# load base section content and print it
+load_section_content
+for field in "${base_fields[@]}"; do
+	print_scalar_field "$field"
+done
+print_section_content
+
+# load section content for each split package and print it
+for splitname in "${pkgname[@]}"; do
+	printf "\npkgname = %s\n" "$splitname"
+	clear_fields
+	load_section_content "$splitname"
+	print_section_content
+done
+