Implement working on a array of spec files

Forgejo Runner doesn't support dynamic matrix jobs (where the input comes from output of another job).
To work around this, accept a list of spec files to process and run the same thing over and over.

Might still have to fix the output.

action.yml

@@ -2,8 +2,8 @@ name: "RPM Build"
 description: "Builds RPMs for a target system from a spec file"
 
 inputs:
-  spec:
-    description: "Path to the spec file"
+  specs:
+    description: "Paths to the spec files"
     required: true
   system:
     description: "System target to build the package"

entrypoint.sh

@@ -1,10 +1,16 @@
 #!/bin/bash
 
-SPEC=${INPUT_SPEC}
+# SPECS should be a JSON array of all the to-process spec files
+# Forgejo runner doesn't support dynamic matrix jobs so, this has to be made this way
+# Convert the JSON array to a bash array and iterate over it
+readarray -t SPECS < <(echo ${INPUT_SPECS} | jq -c .[] | tr -d '"')
+echo "::debug::specs: ${SPECS}"
 SYSTEM=${INPUT_SYSTEM}
 ARCH=${INPUT_ARCH}
 NOCHECK=${INPUT_NOCHECK}
 
+
+for SPEC in ${SPECS[@]}; do
   SPEC_NAME=$(basename ${SPEC})
   CONFIGURATION="${SYSTEM}-${ARCH}"
 
@@ -44,5 +50,7 @@ if [ $? -ne 0 ]; then
   fi
   echo "::endgroup::"
 
-RPM=i$(grep Wrote result/build.log | grep "/RPMS/" | cut -d" " -f 2)
-echo "rpm=${RPM}" >> ${GITHUB_OUTPUT}
+  RPMS=i$(grep Wrote result/build.log | grep "/RPMS/" | cut -d" " -f 2)
+  echo "::debug::rpms: ${RPMS}"
+  echo "rpms=${RPMS}" >> ${GITHUB_OUTPUT}
+done