While working on VAULT-34829 it became apparent that if our new backporter
could know which branches are active and which CE counterparts are active
then we could completely omit the need for `ce` backport labels and instead
automatically backport to corresponding CE branches that are active.
To facilitate that we can re-use our `.release/versions.hcl` file as it is
the current source of truth for our present backport assistant workflow.
Here we add a new `pipeline releases list versions` command that is capable
of decoding that file and optionally displaying it. It will be used in the
next PR that fully implements VAULT-34829.
As part of this work we refactors `pipeline releases` to include a new `list`
sub-command and moved both `list-active-versions` and `versions` to it.
We also include a few small fixes that were noticed:
- `.release/verions.hcl` was not up-to-date
- Our cached dynamic config was not getting recreated when the pipeline
tool changed. That has been fixed so now dynamic config should always
get recreated when the pipeline binary changes
- We now initialize a git client when using the `github` sub-command.
This will be used in more forthcoming work
- Update our changed file detection to resolve some incorrect groupings
- Add some additional changed file helpers that we be used in forthcoming
work
Signed-off-by: Ryan Cragun <me@ryan.ec>
As the Vault pipeline and release processes evolve over time, so too must the tooling that drives them. Historically we've utilized a combination of CI features and shell scripts that are wrapped into make targets to drive our CI. While this
approach has worked, it requires careful consideration of what features to use (bash in CI almost never matches bash in developer machines, etc.) and often requires a deep understanding of several CLI tools (jq, etc). `make` itself also has limitations in user experience, e.g. passing flags.
As we're all in on Github Actions as our pipeline coordinator, continuing to utilize and build CLI tools to perform our pipeline tasks makes sense. This PR adds a new CLI tool called `pipeline` which we can use to build new isolated tasks that we can string together in Github Actions. We intend to use this utility as the interface for future release automation work, see VAULT-27514.
For the first task in this new `pipeline` tool, I've chosen to build two small sub-commands:
* `pipeline releases list-versions` - Allows us to list Vault versions between a range. The range is configurable either by setting `--upper` and/or `--lower` bounds, or by using the `--nminus` to set the N-X to go back from the current branches version. As CE and ENT do not have version parity we also consider the `--edition`, as well as none-to-many `--skip` flags to exclude specific versions.
* `pipeline generate enos-dynamic-config` - Which creates dynamic enos configuration based on the branch and the current list of release versions. It takes largely the same flags as the `release list-versions` command, however it also expects a `--dir` for the enos directory and a `--file` where the dynamic configuration will be written. This allows us to dynamically update and feed the latest versions into our sampling algorithm to get coverage over all supported prior versions.
We then integrate these new tools into the pipeline itself and cache the dynamic config on a weekly basis. We also cache the pipeline tool itself as it will likely become a repository for pipeline specific tooling. The caching strategy for the `pipeline` tool itself will make most workflows that require it super fast.
Signed-off-by: Ryan Cragun <me@ryan.ec>
