init

.gitignore

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+node_modules

.graphql-schema-linterrc

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+{
+    "rules": [
+        "descriptions-are-capitalized",
+        "enum-values-all-caps",
+        "fields-are-camel-cased",
+        "fields-have-descriptions",
+        "types-have-descriptions",
+        "defined-types-are-used",
+        "deprecations-have-a-reason",
+        "input-object-fields-sorted-alphabetically",
+        "interface-fields-sorted-alphabetically",
+        "type-fields-sorted-alphabetically",
+        "types-are-capitalized",
+        "enum-values-sorted-alphabetically"
+    ]
+}

README.md

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-# action-graphql-linter
-Custom GitHub Action for linting GraphQL
+# GraphQL Linter Action
+
+This action lints the GraphQL Schemas sent in the input.
+
+## Inputs
+
+## `graphql-schemas`
+
+**Required** GraphQL Schemas to lint.
+
+## Example usage
+
+```yaml
+uses: actions/[email protected]
+with:
+  graphql-schemas: 'app/graphql.schema'
+```
+
+```yaml
+uses: actions/[email protected]
+with:
+  graphql-schemas: 'graphql1.schema,graphql2.schema'
+```

action.yml

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+name: 'GraphQL Linter'
+description: 'Lints the given GraphQL schemas'
+inputs:
+  files:
+    description: 'Files to lint'
+    required: true
+runs:
+  using: 'node16'
+  main: 'index.js'

index.js

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+const core = require('@actions/core');
+const github = require('@actions/github');
+const { runner } = require('graphql-schema-linter');
+
+function lintSchemas(schemas) {
+    const args = [null, __dirname, ...schemas];
+    console.log("Linting schemas: ", schemas.join())
+    return runner.run(process.stdout, process.stdin, process.stderr, args)
+}
+async function main() {
+    const payload = JSON.stringify(github.context.payload, undefined, 2)
+    console.log(`The event payload: ${payload}`);
+    try {
+        const schemaFiles = core.getInput('files').split(',');
+        const combined = core.getInput('combined');
+
+        if (combined) {
+            const exitCode = await lintSchemas(schemaFiles);
+            if (exitCode !== 0) {
+                throw new Error(`Invalid Schemas ${schemas}`);
+            }
+        } else {
+            for (const schema of schemaFiles) {
+                const exitCode = await lintSchemas([schema]);
+                if (exitCode !== 0) {
+                    throw new Error(`Invalid Schema ${schema}`);
+                }
+            }
+        }
+    } catch (error) {
+        core.setFailed(error.message);
+    }
+}
+main();

package.json

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+{
+  "name": "playground",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "dependencies": {
+    "@actions/core": "^1.9.0",
+    "@actions/github": "^5.0.3",
+    "graphql": "^16.5.0",
+    "graphql-schema-linter": "^3.0.1"
+  }
+}