1 files changed, 27 insertions, 14 deletions
diff --git a/lib/common-functions b/lib/common-functions
index b6b9095..b0bb362 100755
--- a/lib/common-functions
+++ b/lib/common-functions
@@ -458,20 +458,9 @@ extract_source_directory() {
   if [ -n "${revision}" ] \
   && [ "${revision}" != '0000000000000000000000000000000000000000' ]; then
     local pkgbase_translated
-    for substitution in '' 's@+@plus@g' 's@+@-@g' 's@^tree$@unix-tree@'; do
-      pkgbase_translated=$(
-        printf '%s\n' "${pkgbase}" \
-        | sed "${substitution}"
-      )
-      curl -LSs "https://buildmaster.archlinux32.org/upstream-packages/${pkgbase_translated}-${revision}.tar.gz" \
-      | tar -xz  --strip-components=1 -C "${output}" -- "${pkgbase_translated}-${revision}" 2>/dev/null \
-      && break
-    done
-    if [ ! -f "${output}/PKGBUILD" ]; then
-      >&2 printf 'failed to download/extract a PKGBUILD from upstream archlinux for %s %s\n' \
-        "${pkgbase}" "${revision}"
-      exit 1
-    fi
+    pkgbase_translated=$(gitlab_project_name_to_path "${pkgbase}")
+    curl -LSs "https://buildmaster.archlinux32.org/upstream-packages/${pkgbase_translated}-${revision}.tar.gz" \
+    | tar -xz  --strip-components=1 -C "${output}" -- "${pkgbase_translated}-${revision}"
     printf '\n' >> \
       "${output}/PKGBUILD"
   fi
@@ -1035,3 +1024,27 @@ expand_blacklist_architectures() {
   | sort -u
   rm "$1"
 }
+
+# taken verbatim from upstream archlinux:
+# https://gitlab.archlinux.org/archlinux/devtools/-/raw/master/src/lib/api/gitlab.sh
+
+# Convert arbitrary project names to GitLab valid path names.
+#
+# GitLab has several limitations on project and group names and also maintains
+# a list of reserved keywords as documented on their docs.
+# https://docs.gitlab.com/ee/user/reserved_names.html
+#
+# 1. replace single '+' between word boundaries with '-'
+# 2. replace any other '+' with literal 'plus'
+# 3. replace any special chars other than '_', '-' and '.' with '-'
+# 4. replace consecutive '_-' chars with a single '-'
+# 5. replace 'tree' with 'unix-tree' due to GitLab reserved keyword
+gitlab_project_name_to_path() {
+	local name=$1
+	printf "%s" "${name}" \
+		| sed -E 's/([a-zA-Z0-9]+)\+([a-zA-Z]+)/\1-\2/g' \
+		| sed -E 's/\+/plus/g' \
+		| sed -E 's/[^a-zA-Z0-9_\-\.]/-/g' \
+		| sed -E 's/[_\-]{2,}/-/g' \
+		| sed -E 's/^tree$/unix-tree/g'
+}