feat: parse indirect matrix

Author: dominykas

lib/github-actions/index.js

@@ -32,7 +32,16 @@ internals.parseActionsSetupNode = function * (workflow, file) {
 
             const envMatch = nodeVersion.match(/^\${{\s+env.(?<envVarName>.*)\s+}}$/);
             if (envMatch) {
-                const envValue = workflow.env[envMatch.groups.envVarName];
+                const env = {
+                    ...workflow.env,
+                    ...step.env
+                };
+                const envValue = env[envMatch.groups.envVarName];
+
+                if (!envValue) {
+                    yield 'not-set';
+                    continue;
+                }
 
                 yield envValue;
                 continue;
@@ -68,15 +77,26 @@ internals.parseLjharbActions = function * (workflow, file) {
             const matrixMatch = nodeVersion.match(/^\${{\s+matrix.(?<matrixVarName>.*)\s+}}$/);
             if (matrixMatch) {
 
+                let needs = job.strategy.matrix;
                 if (typeof job.strategy.matrix !== 'string') {
 
                     const matrix = job.strategy.matrix[matrixMatch.groups.matrixVarName];
 
-                    yield * matrix;
-                    continue;
+                    if (!matrix) {
+                        throw new Error(`Unable to find matrix variable '${matrixMatch.groups.matrixVarName}' in the matrix in ${file}`);
+                    }
+
+                    if (typeof matrix !== 'string') {
+                        // @todo find an example
+                        yield * matrix;
+                        continue;
+                    }
+
+                    // example: eslint-plugin-react
+                    needs = matrix;
                 }
 
-                const fromJsonMatch = job.strategy.matrix.match(/^\${{\s+fromJson\(needs\.(?<needJobName>.*)\.outputs\.(?<needOutputName>.*)\)\s+}}$/);
+                const fromJsonMatch = needs.match(/^\${{\s+fromJson\(needs\.(?<needJobName>.*)\.outputs\.(?<needOutputName>.*)\)\s+}}$/);
                 if (fromJsonMatch) {
                     const { needJobName, needOutputName } = fromJsonMatch.groups;
                     const needJob = workflow.jobs[needJobName];