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The following is a list (incomplete) of the primary contexts and runtime
"modes" supported by podman CI. Note that there may be additional checks
done regarding "skipping work" in the `runner.sh` script. This document
only details the controls at the `.cirrus.yml` level.
## Visualization
The relationship between tasks can be incredibly hard to understand by
staring at the YAML.
[A tool exists](https://github.com/containers/automation/tree/main/cirrus-task-map)
for producing a graph (flow-chart) of the `.cirrus.yml` file. A (possibly
outdated) example of it's output can be seen below:
## Implementation notes
+ The `skip` conditional should never be used for tasks.
While it's arguably easier to read that `only_if`, it leads to a cluttered
status output that's harder to page through when reviewing PRs. As opposed
to `only_if` which will bypass creation of the task (at runtime) completely.
Also, by sticking to one conditional style, it's easer to re-use the YAML
statements across multiple tasks.
+ The only variables which can be used as part of conditions are defined by
Cirrus-CI.
[The list is documented](https://cirrus-ci.org/guide/writing-tasks/#environment-variables). Reference to any variables defined in YAML will **not** behave how
you expect, don't use them!
* Somme Cirrus-CI defined variables contain non-empty values outside their
obvious context. For example, when running for a PR a task will have
`$CIRRUS_BRANCH` set to `pull/<number>`.
* Conditions which use positive or negative regular-expressions have several
"flags" set: "Multi-line" and "Case-insensitive".
## Testing
Executing most of the modes can be mocked by forcing values for (otherwise)
Cirrus-CI defined variables. For example `$CIRRUS_TAG`. As of the publishing
of this document, it's not possible to override the behavior of `$CIRRUS_PR`.
## Cirrus Task contexts and runtime modes
### Intended general PR Tasks (*italic*: matrix)
+ ext_svc_check
+ automation
+ *build*
+ validate
+ bindings
+ swagger
+ consistency
+ *alt_build*
+ osx_alt_build
+ docker-py_test
+ *unit_test*
+ apiv2_test
+ *compose_test*
+ *local_integration_test*
+ *remote_integration_test*
+ *container_integration_test*
+ *rootless_integration_test*
+ *local_system_test*
+ *remote_system_test*
+ *rootless_remote_system_test*
+ *buildah_bud_test*
+ *rootless_system_test*
+ rootless_gitlab_test
+ *upgrade_test*
+ meta
+ success
+ artifacts
### Intended for PR w/ "release" or "bump" in title:
+ (All the general PR tasks above)
+ release_test
### Intended `[CI:DOCS]` PR Tasks:
+ ext_svc_check
+ automation
+ *build*
+ validate
+ swagger
+ consistency
+ meta
+ success
### Intend `[CI:BUILD]` PR Tasks:
+ ext_svc_check
+ automation
+ *build*
+ validate
+ consistency
+ *alt_build*
+ osx_alt_build
+ test_image_build
+ meta
+ success
+ artifacts
### Intended Branch tasks (and Cirrus-cron jobs, except "multiarch"):
+ ext_svc_check
+ *build*
+ swagger
+ *alt_build*
+ osx_alt_build
+ *local_system_test*
+ *remote_system_test*
+ *rootless_remote_system_test*
+ *rootless_system_test*
+ meta
+ success
+ artifacts
### Intended for "multiarch" Cirrus-Cron (always a branch):
+ ext_svc_check
+ image_build
+ meta
+ success
### Intended for new Tag tasks:
+ *build*
+ swagger
+ *alt_build*
+ osx_alt_build
+ meta
+ success
+ artifacts
+ release
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