Docker json config parameter + linting (#86)

* lint + added parameter
* updated package json
* updated licenses.txt file
* README linting
* Updating action.yml

Author: rnsc

README.md

@@ -1,16 +1,20 @@
+# tag-push-action
+
 ## About
 
 Github action to retag and push multiplatform images to multiple registries
 
 > :bulb: See also:
+>
 > * [login](https://github.com/docker/login-action) action
 > * [docker-meta](https://github.com/crazy-max/ghaction-docker-meta) action
 
 This action heavily relies on work done by [@tonistiigi](https://github.com/tonistiigi/repo-copy) and [@crazymax](https://github.com/docker/metadata-action)
 
 ## Usage
 
-#### Basic
+### Basic
+
 ```yaml
 name: Push-Image
 
@@ -42,16 +46,15 @@ jobs:
             quay.io/akhilerm/node-disk-manager-amd64:ci
 ```
 
-1. Login to all the registries from which you want to pull and push the multiplatform image. 
+1. Login to all the registries from which you want to pull and push the multiplatform image.
 
-**NOTE: The source registry should be logged in after all destination regisries are logged in.**
+    **NOTE: The source registry should be logged in after all destination registries are logged in.**
 
-2. Specify the `src` and `dst` registry, both of which are mandatory fields. The action allows multiple destination 
-registries specified as a yaml string.
+2. Specify the `src` and `dst` registry, both of which are mandatory fields. The action allows multiple destination registries specified as a yaml string.
 
 **NOTE: If dockerhub is used, make sure that `docker.io` is specified in the image name**
 
-#### Using with `docker/metadata-action`
+### Using with `docker/metadata-action`
 
 The action can be used alongside [metadata-action](https://github.com/docker/metadata-action) to generate
 tags easily.
@@ -87,3 +90,17 @@ jobs:
 ```
 
 The output tags from the `meta` step can be used as destination tags for this github action.
+
+### Use a custom docker config file
+
+The standard docker config path on GitHub runner is `/home/runner/.docker/config.json`. In case you're running on a custom GitHub runner, and your config path is not standard, then the `docker-config-path` can be used.
+
+```yaml
+  - name: Push image
+    uses: akhilerm/tag-push-action@v1.0.0
+    with:
+      docker-config-path: /home/myuser/.docker/config.json
+      src: docker.io/akhilerm/node-disk-manager:ci
+      dst: |
+        quay.io/akhilerm/node-disk-manager-amd64:ci
+```

__tests__/main.test.ts

@@ -1,32 +1,43 @@
-import * as main from '../src/main';
+import * as main from '../src/main'
 
 describe('getDestinationTags', () => {
   it('single image', async () => {
-    await setInput('dst', 'akhilerm/linux-utils:ci');
-    const res = await main.getDestinationTags();
-    expect(res).toEqual(['akhilerm/linux-utils:ci']);
-  });
+    await setInput('dst', 'akhilerm/linux-utils:ci')
+    const res = await main.getDestinationTags()
+    expect(res).toEqual(['akhilerm/linux-utils:ci'])
+  })
 
   it('multiple images', async () => {
-    await setInput('dst', 'akhilerm/linux-utils:ci\nquay.io/akhilerm/linux-utils:ci');
-    const res = await main.getDestinationTags();
-    expect(res).toEqual(['akhilerm/linux-utils:ci', 'quay.io/akhilerm/linux-utils:ci']);
-  });
+    await setInput(
+      'dst',
+      'akhilerm/linux-utils:ci\nquay.io/akhilerm/linux-utils:ci'
+    )
+    const res = await main.getDestinationTags()
+    expect(res).toEqual([
+      'akhilerm/linux-utils:ci',
+      'quay.io/akhilerm/linux-utils:ci'
+    ])
+  })
 
   it('multiline images', async () => {
-    await setInput('dst', `akhilerm/linux-utils:ci
-       quay.io/akhilerm/linux-utils:ci`);
-    const res = await main.getDestinationTags();
-    expect(res).toEqual(['akhilerm/linux-utils:ci', 'quay.io/akhilerm/linux-utils:ci']);
-  });
-});
+    await setInput(
+      'dst',
+      `akhilerm/linux-utils:ci
+       quay.io/akhilerm/linux-utils:ci`
+    )
+    const res = await main.getDestinationTags()
+    expect(res).toEqual([
+      'akhilerm/linux-utils:ci',
+      'quay.io/akhilerm/linux-utils:ci'
+    ])
+  })
+})
 
 function setInput(name: string, value: string): void {
-  process.env[getInputName(name)] = value;
+  process.env[getInputName(name)] = value
 }
 
 // See: https://github.com/actions/toolkit/blob/master/packages/core/src/core.ts#L67
 function getInputName(name: string): string {
-  return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`;
+  return `INPUT_${name.replace(/ /g, '_').toUpperCase()}`
 }
-

action.yml

@@ -8,6 +8,9 @@ inputs:
   dst:
     required: true
     description: 'Destination tags'
+  docker-config-path:
+    required: false
+    description: 'Docker config file path'
 runs:
   using: 'node12'
   main: 'dist/index.js'