# \[solved\] Conditional builds / multiple \`when\` clauses **URL:** \ **Category:** Drone Support\ **Created:** [February 25, 2017, 11:43am UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885 "2017-02-25T11:43:11Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![kasperlewau](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/kasperlewau/32/3967_2.png) [@kasperlewau](https://drone.discourse.group/u/kasperlewau)\ **Post date:** [February 25, 2017, 11:43am UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/1 "2017-02-25T11:43:11Z")
Howdy ho! I’ve been using Drone for a brief period of time now and am enjoying it a great deal, but I simply cannot figure out how to do the following: - Trigger my test runs on pull request hooks. - Trigger my test runs on push hooks from _master_ only. I gave the following a shot: ```auto pipeline: test: image: node:latest commands: - npm install --no-optional --silent > /dev/null - npm run ci when: event: push branch: master when: event: pull_request ``` However this appears to ignore the first `when` clause. I believe I’m looking for something like: ```auto when: - branch == 'master' && event == 'push' - branch != 'master' && event == 'pull_request' ``` Looking through the docs at [http://readme.drone.io/0.5/usage/conditional-builds/](http://readme.drone.io/0.5/usage/conditional-builds/) and [http://readme.drone.io/0.5/usage/conditional-build-steps/](http://readme.drone.io/0.5/usage/conditional-build-steps/) I haven’t been able to figure out how to achieve what I need. * * * An initial workaround I used: ```auto # first step of `test` - if ["$DRONE_COMMIT_BRANCH" != master] && ["$DRONE_BUILD_EVENT" = push]; then exit 0; fi ``` I’ve since dropped that workaround and now run with a duplicate `test` clause: ```auto pipeline: test: when: branch: master event: push test: when: event: pull_request ``` This does indeed do the job, but I would love to scratch the duplication. ---
**Author:** ![bradrydzewski](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/bradrydzewski/32/3513_2.png) [@bradrydzewski](https://drone.discourse.group/u/bradrydzewski)\ **Post date:** [February 28, 2017, 12:09pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/2 "2017-02-28T12:09:36Z")
You will need to declare two YAML steps for this: ```auto pipeline: build_push: image: golang commands: - go test when: event: push branch: master build_pr: image: golang commands: - go test - go build when: event: pull_request branch: excludes: master ``` If you want to avoid duplicate configuration and keep things DRY you can use YAML [anchors](https://learnxinyminutes.com/docs/yaml/). ---
**Author:** ![kasperlewau](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/kasperlewau/32/3967_2.png) [@kasperlewau](https://drone.discourse.group/u/kasperlewau)\ **Post date:** [February 28, 2017, 12:57pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/3 "2017-02-28T12:57:50Z")
Ooh, I did not know about anchors. I will most definitely check those out (& keep my two separate steps). Thank you! ---
**Author:** ![kasperlewau](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/kasperlewau/32/3967_2.png) [@kasperlewau](https://drone.discourse.group/u/kasperlewau)\ **Post date:** [February 28, 2017, 1:07pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/4 "2017-02-28T13:07:36Z")
And to close it all off: anchors worked brilliantly! Many thanks. ```auto run_tests: &run_tests image: node:7.6.0 commands: - npm install --no-optional --silent > /dev/null - npm run ci pipeline: pr: <<: *run_tests when: event: pull_request branch: excludes: master push: <<: *run_tests when: event: push branch: master ``` ---
**Author:** ![kasperlewau](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/kasperlewau/32/3967_2.png) [@kasperlewau](https://drone.discourse.group/u/kasperlewau)\ **Post date:** [September 21, 2017, 9:37am UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/5 "2017-09-21T09:37:57Z")
Figured I’d necro this little issue. drone-cli 0.7.0 doest not respect anchors anymore. “Invalid or missing image”. The build works fine on the server (also runing 0.7.0). Stepping my drone-cli version down to 0.5.0-dev works dandy. For now we’ve removed the anchors and gone back to a slightly less DRY approach. ---
**Author:** ![laszlocph](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/laszlocph/32/3233_2.png) [@laszlocph](https://drone.discourse.group/u/laszlocph)\ **Post date:** [January 31, 2018, 1:28pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/6 "2018-01-31T13:28:27Z")
It’s still the case with 0.8 Anchors would be lovely though. ---
**Author:** ![laszlocph](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/laszlocph/32/3233_2.png) [@laszlocph](https://drone.discourse.group/u/laszlocph)\ **Post date:** [February 23, 2018, 8:02pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/7 "2018-02-23T20:02:29Z")
Strike my last. Worked on my Yaml a bit and this one works: ```auto bb_image: &image debian:stable-slim steps: &commands - echo "Hello" pipeline: build_push: image: *image commands: *commands when: event: push branch: master build_pr: image: *image commands: *commands when: event: pull_request branch: master ``` ---
**Author:** ![laszlocph](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/laszlocph/32/3233_2.png) [@laszlocph](https://drone.discourse.group/u/laszlocph)\ **Post date:** [February 23, 2018, 8:23pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/8 "2018-02-23T20:23:43Z")
Merging doesn’t work though. Can someone spot an error with my yaml? It says “Invalid or missing image” ```auto steps: &steps image: debian:stable-slim commands: - echo "hello" pipeline: build: image: debian:stable-slim commands: - echo "hello" deploy_stage: <<: *steps when: branch: master deploy_prod: <<: *steps when: branch: prod ``` ---
**Author:** ![yellowmegaman](https://yyz1.discourse-cdn.com/flex003/user_avatar/drone.discourse.group/yellowmegaman/32/3786_2.png) [@yellowmegaman](https://drone.discourse.group/u/yellowmegaman)\ **Post date:** [March 2, 2018, 12:33pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/9 "2018-03-02T12:33:31Z")
Same here. Would really love to be able to run two defined (in pipeline) actions against one environment using arguments. like: drone deploy repo build dev (for deployment) drone deploy repo build dev --event restore-db-backup - separate set of steps for db restoration ---
**Author:** ![shaocongliang](https://avatars.discourse-cdn.com/v4/letter/s/e47c2d/32.png) [@shaocongliang](https://drone.discourse.group/u/shaocongliang)\ **Post date:** [November 10, 2018, 6:37pm UTC](https://drone.discourse.group/t/solved-conditional-builds-multiple-when-clauses/8885/10 "2018-11-10T18:37:37Z")
```auto PREFIX: &id image: plugins/docker group: publish username: scliang password: scliang registry: xxxx email: scliang@xxx.com insecure: true dispatch: <<: *id repo: foo tag: 0.9.8 dockerfile: bar ```