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nektos
Job getting composite action's output variable with wrong key
Bug report info
act version: 0.2.75
GOOS: windows
GOARCH: amd64
NumCPU: 16
Docker host: DOCKER_HOST environment variable is not set
Sockets found:
\\.\pipe\docker_engine(broken)
Config files:
C:\Users\MyUser\AppData\Local\act\actrc:
-P ubuntu-latest=catthehacker/ubuntu:act-latest
-P ubuntu-22.04=catthehacker/ubuntu:act-22.04
-P ubuntu-20.04=catthehacker/ubuntu:act-20.04
-P ubuntu-18.04=catthehacker/ubuntu:act-18.04
Build info:
Go version: go1.23.6
Module path: github.com/nektos/act
Main version: (devel)
Main path: github.com/nektos/act
Main checksum:
Build settings:
-buildmode: exe
-compiler: gc
-ldflags: -s -w -X main.version=0.2.75 -X main.commit=bd97dc8d9422a8b04e6193c6c86afa8a7a693fdf -X main.date=2025-03-01T02:31:09Z -X main.builtBy=goreleaser
CGO_ENABLED: 0
GOARCH: amd64
GOOS: windows
GOAMD64: v1
vcs: git
vcs.revision: bd97dc8d9422a8b04e6193c6c86afa8a7a693fdf
vcs.time: 2025-03-01T02:30:53Z
vcs.modified: false
Docker Engine:
Engine version: 28.0.1
Engine runtime: runc
Cgroup version: 1
Cgroup driver: cgroupfs
Storage driver: overlay2
Registry URI: https://index.docker.io/v1/
OS: Docker Desktop
OS type: linux
OS version:
OS arch: x86_64
OS kernel: 5.15.153.1-microsoft-standard-WSL2
OS CPU: 16
OS memory: 15946 MB
Security options:
name=seccomp,profile=unconfined
Command used with act
act -W .\.github\workflows\test-workflow.yaml
Describe issue
I've found a bug, where you can use a composite action's output variable with the wrong name in act, whereas on github actions' runner it won't be picked up.
In this stripped down code, I have a workflow, called test-workflow, that calls the composite action composite-action.
The composite action outputs a value, dummy_variable, from the step dummy_step own outputted variable that is called value.
The workflow calls the composite action in composite_step, then outputs the dumy_variable with the path steps.composite_step.outputs.value:
[Test workflow/test] ⭐ Run Main Launch composite action
[Test workflow/test] ⚙ ::set-output:: dummy_variable=dummy_variable
[Test workflow/test] ✅ Success - Main Launch composite action
[Test workflow/test] ⚙ ::set-output:: value=dummy_variable
[Test workflow/test] ⭐ Run Main echo output dummy_variable
[Test workflow/test] 🐳 docker exec cmd=[bash -e /var/run/act/workflow/2] user= workdir=
| output dummy_variable
[Test workflow/test] ✅ Success - Main echo output dummy_variable
Because the path is wrong, on github actions' runner, the variable isn't picked up and outputs output, without dummy_variable:
2025-03-17T18:07:29.2844255Z ##[group]Run ./.github/actions/composite-action
2025-03-17T18:07:29.2845519Z ##[endgroup]
2025-03-17T18:07:29.2958551Z ##[group]Run echo "value=dummy_variable" >> $GITHUB_OUTPUT
2025-03-17T18:07:29.2960196Z [36;1mecho "value=dummy_variable" >> $GITHUB_OUTPUT[0m
2025-03-17T18:07:29.3015023Z shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
2025-03-17T18:07:29.3016468Z ##[endgroup]
2025-03-17T18:07:29.3265871Z ##[group]Run echo output
2025-03-17T18:07:29.3266858Z [36;1mecho output [0m
2025-03-17T18:07:29.3318319Z shell: /usr/bin/bash -e {0}
2025-03-17T18:07:29.3319284Z ##[endgroup]
2025-03-17T18:07:29.3400444Z output
Fixing the path from outputs.value to outputst.dummy_variable, such as:
- run: echo output ${{ steps.composite_step.outputs.dummy_variable }}
Doesn't change anything in act:
[Test workflow/test] ⭐ Run Main Launch composite action
[Test workflow/test] ⭐ Run Main echo "value=dummy_variable" >> $GITHUB_OUTPUT
[Test workflow/test] 🐳 docker exec cmd=[bash --noprofile --norc -e -o pipefail /var/run/act/workflow/composite_step-composite-dummy_step.sh] user= workdir=
[Test workflow/test] ✅ Success - Main echo "value=dummy_variable" >> $GITHUB_OUTPUT
[Test workflow/test] ⚙ ::set-output:: value=dummy_variable
[Test workflow/test] ⚙ ::set-output:: dummy_variable=dummy_variable
[Test workflow/test] ✅ Success - Main Launch composite action
[Test workflow/test] ⚙ ::set-output:: value=dummy_variable
[Test workflow/test] ⭐ Run Main echo output dummy_variable
[Test workflow/test] 🐳 docker exec cmd=[bash -e /var/run/act/workflow/2] user= workdir=
| output dummy_variable
[Test workflow/test] ✅ Success - Main echo output dummy_variable
And fixes it on github actions' runner
2025-03-17T18:15:00.7710134Z ##[group]Run ./.github/actions/composite-action
2025-03-17T18:15:00.7710702Z ##[endgroup]
2025-03-17T18:15:00.7809083Z ##[group]Run echo "value=dummy_variable" >> $GITHUB_OUTPUT
2025-03-17T18:15:00.7809926Z [36;1mecho "value=dummy_variable" >> $GITHUB_OUTPUT[0m
2025-03-17T18:15:00.7863255Z shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
2025-03-17T18:15:00.7863966Z ##[endgroup]
2025-03-17T18:15:00.8084564Z ##[group]Run echo output dummy_variable
2025-03-17T18:15:00.8085187Z [36;1mecho output dummy_variable[0m
2025-03-17T18:15:00.8134300Z shell: /usr/bin/bash -e {0}
2025-03-17T18:15:00.8134790Z ##[endgroup]
2025-03-17T18:15:00.8208227Z output dummy_variable
Link to GitHub repository
No response
Workflow content
# Test workflow
name: Test workflow
on:
push:
branches:
- "main"
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Launch composite action
id: composite_step
uses: ./.github/actions/composite-action
- run: echo output ${{ steps.composite_step.outputs.value }}
# Composite action
name: Composite action
description: Composite action
outputs:
dummy_variable:
description: Dummy variable
value: ${{ steps.dummy_step.outputs.value }}
runs:
using: composite
steps:
- id: dummy_step
shell: bash
run: echo "value=dummy_variable" >> $GITHUB_OUTPUT
Relevant log output
Because there were multiple logs, they are included in the Describe issue paragraph
Additional information
No response
