Enable customization of env variable name

.github/workflows/test.yml

@@ -18,6 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
+    
     - uses: ./
       id: short-sha
       with: 
@@ -28,3 +29,19 @@ jobs:
         [ ${#SHA} -eq 6 ] && exit 0 || exit 1;
       env:
         SHA: ${{ steps.short-sha.outputs.sha }}
+    - name: validate env
+      run: | 
+        echo $SHA;
+        [ ${#SHA} -eq 6 ] && exit 0 || exit 1;
+      env:
+        SHA: ${{ env.SHA }}
+    
+    - uses: ./
+      with: 
+        variable_name: "SHORT_SHA"
+    - name: validate custom env
+      run: | 
+        echo $SHORT_SHA;
+        [ ${#SHA} -eq 6 ] && exit 0 || exit 1;
+      env:
+        SHORT_SHA: ${{ env.SHORT_SHA }}

README.md

@@ -4,6 +4,8 @@
 
 ## Usage
 
+You can access the shortened value with either `${{ steps.short-sha.outputs.sha }}` (`short-sha` being the name of the action step) or `${{ env.SHA }}`.
+
 ```yaml
 name: 'build-test'
 on: [push]
@@ -13,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: benjlevesque/short-sha@v2.1
+      - uses: benjlevesque/short-sha@v2.2
         id: short-sha
         with:
           length: 6
@@ -28,5 +30,6 @@ jobs:
 ## Options
 
 | Name          | Required | Default | Description                              |
-| ------ | -------- | ------- | ---------------------------------------- |
+| ------------- | -------- | ------- | ---------------------------------------- |
 | length        | `false`  | 7       | the expected length of the shortened SHA |
+| variable_name | `false`  | `SHA`   | the name of the exported env variable    |

action.yml

@@ -6,9 +6,13 @@ branding:
   icon: git-pull-request
 inputs:
   length:      
-    description: 'length of the sha1'
+    description: 'length of the shortened sha1'
     default: '7'
     required: false
+  variable_name:
+    description: "name of the exported env variable"
+    default: "SHA"
+    required: false
 outputs:
   sha:
     description: 'shortened SHA'

dist/index.js

@@ -52,7 +52,7 @@ function run() {
             const shortSha = (0, shorten_1.shorten)(sha, length);
             core.debug(`Output: ${shortSha}`);
             core.setOutput('sha', shortSha);
-            core.exportVariable('SHA', shortSha);
+            core.exportVariable(core.getInput('variable_name'), shortSha);
         }
         catch (error) {
             core.setFailed(error.message);

src/main.ts

@@ -12,7 +12,7 @@ async function run(): Promise<void> {
     core.debug(`Output: ${shortSha}`)
 
     core.setOutput('sha', shortSha)
-    core.exportVariable('SHA', shortSha)
+    core.exportVariable(core.getInput('variable_name'), shortSha)
   } catch (error) {
     core.setFailed(error.message)
   }