feat: export env vars from mise.toml (#241)

Solve https://github.com/jdx/mise-action/issues/36

BREAKING CHANGE: we're defaulting this behavior to `true`

---------

Co-authored-by: jdx <216188+jdx@users.noreply.github.com>

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: 'build-test'
+name: "build-test"
 on: # rebuild any PRs and main branch changes
   pull_request:
     branches:
@@ -50,6 +50,9 @@ jobs:
           mise_toml: |
             [tools]
             jq = "1.7.1"
+
+            [env]
+            MY_ENV_VAR = "abc"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - run: mise --version

action.yml

@@ -70,6 +70,10 @@ inputs:
     required: false
     default: "true"
     description: If true (default), fetch the mise binary from GitHub. If false and using the latest version, fetch from mise.jdx.dev instead.
+  env:
+    description: "Automatically load mise env vars into GITHUB_ENV. Note that PATH modifications are not part of this."
+    required: false
+    default: "true"
 outputs:
   cache-hit:
     description: A boolean value to indicate if a cache was hit.

dist/index.js

@@ -66558,6 +66558,11 @@ async function run() {
             }
         }
         await miseLs();
+        const loadEnv = core.getBooleanInput('env');
+        if (loadEnv) {
+            const output = await exec.getExecOutput('mise', ['env', '--dotenv']);
+            fs.appendFileSync(process.env.GITHUB_ENV, output.stdout);
+        }
     }
     catch (err) {
         if (err instanceof Error)

scripts/test.sh

@@ -16,3 +16,6 @@ which jq
 if [[ "$(uname)" != "MINGW"* ]]; then
   assert_equal "$EXPECTED_OUTPUT" "$(jq --version)"
 fi
+
+# checking that environment variables set in mise.toml are properly set
+assert_equal "${MY_ENV_VAR}" "abc"

src/index.ts

@@ -35,6 +35,11 @@ async function run(): Promise<void> {
       }
     }
     await miseLs()
+    const loadEnv = core.getBooleanInput('env')
+    if (loadEnv) {
+      const output = await exec.getExecOutput('mise', ['env', '--dotenv'])
+      fs.appendFileSync(process.env.GITHUB_ENV!, output.stdout)
+    }
   } catch (err) {
     if (err instanceof Error) core.setFailed(err.message)
     else throw err