add a debug option

action.yml

@@ -13,11 +13,15 @@ inputs:
     description: List/CSV of jobs to deploy per environment.
     required: false
     default: app
+  debug:
+    description: Adds debug logging to the output
+    required: false
+    default: "false"
 outputs:
   matrix:
     description: Matrix JSON to be used in another job.
   count:
     description: Count of matching environments.
 runs:
-  using: 'node20'
-  main: 'dist/index.js'
+  using: "node20"
+  main: "dist/index.js"

src/index.js

@@ -12,10 +12,15 @@ import {
 try {
   const envs = yaml.load(core.getInput("envs"));
   const jobs = parseDynamicList(core.getInput("jobs"));
+  const debug = core.getInput("debug") === 'true';
   const matrix = { include: [] };
 
   // Split GitHub ref into type (heads, tags) and ref
   const [, type, ref] = github.context.ref.match(/^refs\/(.+)\/(.+)$/);
+  if (debug) {
+    core.info(`Type: "${type}"`);
+    core.info(`Ref: "${ref}"`);
+  }
 
   let count = 0;
   for (let [env, value] of Object.entries(envs)) {
@@ -28,20 +33,24 @@ try {
       patterns = value;
     } else {
       if (value.type === "temp") {
+        if (debug) core.info(`Temporary Environment`)
         // Temp environments enabled
         if (github.context.eventName === "pull_request") {
           const prEvent = github.context.payload;
           let matches = false;
           if (value.label) {
+            if (debug) core.info(`Pull Request Event: Labelled: ${value.label}`)
             matches = prEvent.pull_request.labels.some(
               (label) => label.name === value.label,
             );
           } else if (value.removed_label) {
+            if (debug) core.info(`Pull Request Event: Unlabelled: ${value.removed_label}`)
             matches = !prEvent.pull_request.labels.some(
               (label) => label.name === value.removed_label,
             );
           }
           if (matches) {
+            if (debug) core.info(`Labels match: ${value.label}`)
             patterns = ref;
             value.name = `${value.name || toTitleCase(env)} #${prEvent.number}`;
             env += prEvent.number;
@@ -60,6 +69,10 @@ try {
         }
       }
 
+      if (debug) {
+        core.info(`Patterns: "${patterns}"`);
+      }
+
       extraValues = { ...value };
       delete extraValues.branch;
       delete extraValues.tag;