feat: Host environment (#1293)

pkg/runner/testdata/nix-prepend-path/push.yml

@@ -0,0 +1,26 @@
+on:
+  push:
+defaults:
+  run:
+    shell: sh
+jobs:
+  test:
+    runs-on: self-hosted
+    steps:
+    - run: |
+        mkdir build
+        echo '#!/usr/bin/env sh' > build/testtool
+        echo 'echo Hi' >> build/testtool
+        chmod +x build/testtool
+    - run: |
+        echo '${{ tojson(runner) }}'
+        ls
+        echo '${{ github.workspace }}'
+      working-directory: ${{ github.workspace }}/build
+    - run: |
+        echo "$GITHUB_PATH"
+        echo '${{ github.workspace }}/build' > "$GITHUB_PATH"
+        cat "$GITHUB_PATH"
+    - run: |
+        echo "$PATH"
+        testtool

pkg/runner/testdata/windows-add-env/push.yml

@@ -0,0 +1,27 @@
+on:
+  push:
+defaults:
+  run:
+    shell: pwsh
+jobs:
+  test:
+    runs-on: windows-latest
+    steps:
+    - run: |
+        echo $env:GITHUB_ENV
+        echo "key=val" > $env:GITHUB_ENV
+        echo "key2<<EOF" >> $env:GITHUB_ENV
+        echo "line1" >> $env:GITHUB_ENV
+        echo "line2" >> $env:GITHUB_ENV
+        echo "EOF" >> $env:GITHUB_ENV
+        cat $env:GITHUB_ENV
+    - run: |
+        ls env:
+        if($env:key -ne 'val') {
+          echo "Unexpected value for `$env:key: $env:key"
+          exit 1
+        }
+        if($env:key2 -ne "line1`nline2") {
+          echo "Unexpected value for `$env:key2: $env:key2"
+          exit 1
+        }

pkg/runner/testdata/windows-prepend-path/push.yml

@@ -0,0 +1,25 @@
+on:
+  push:
+defaults:
+  run:
+    shell: pwsh
+jobs:
+  test:
+    runs-on: windows-latest
+    steps:
+    - run: |
+        mkdir build
+        echo '@echo off' > build/test.cmd
+        echo 'echo Hi' >> build/test.cmd
+    - run: |
+        echo '${{ tojson(runner) }}'
+        ls
+        echo '${{ github.workspace }}'
+      working-directory: ${{ github.workspace }}\build
+    - run: |
+        echo $env:GITHUB_PATH
+        echo '${{ github.workspace }}\build' > $env:GITHUB_PATH
+        cat $env:GITHUB_PATH
+    - run: |
+        echo $env:PATH
+        test