Promote official Arch Linux releases
Project description
This project allows for promoting existing releases of a project in Arch Linux’s Gitlab instance.
Releases of a project (e.g. project) may consist of several release types (e.g. image_a and image_b), which are addressed separately.
A promotion encompasses - per release type - PGP signatures for relevant artifacts (optional), a torrent file (optional) and a JSON payload which can be used by archweb to display information about each release type.
Requirements
The arch-release-promotion tool is Python based. All requirements are specified in its pyproject.toml.
Use
After installation, refer to the output of arch-release-promotion -h.
Configuration
The command-line tool arch-release-promotion makes use of two sources of configuration:
makepkg.conf is read from any of its locations in the same priority as makepkg does. All of the below can also be passed to the tool via environment variables:
GPGKEY is recognized for establishing which PGP key to use for signing
PACKAGER is recognized for establishing who is doing the signature and is important for WKD lookup
MIRRORLIST_URL (not used by makepkg) is used during the generation of torrent files to add webseeds (defaults to "https://archlinux.org/mirrorlist/?country=all&protocol=http&protocol=https")
GITLAB_URL (not used by makepkg) is used to connect to a GitLab instance to select, download and promote releases of a project (defaults to "https://gitlab.archlinux.org")
PRIVATE_TOKEN (not used by makepkg) is used to authenticate against the GitLab instance. The personal access token needs to provide write access for the target project.
projects.toml is a configuration file that provides the configuration for a project and its releases. Configuration files are read and merged with descending priority from /etc/arch-release-promotion/projects.toml and $XDG_CONFIG_HOME/arch-release-promotion/projects.toml (which defaults to $HOME/.config/arch-release-promotion/projects.toml if $XDG_CONFIG_HOME is unset). Please refer to examples/example.toml for further reference in regards to the available options
Openmetrics
If the upstream project offers an openmetrics based metrics file, the data from it can be used as additional information in the JSON payload.
The following metrics are considered.
Version metrics
Description and version information about e.g. packages can be derived from version_info metrics of type info, that define a name, description and version label.
For the metrics to be considered, they have to be configured by adding a version_metrics list (a list of names to look for) to a release of a project.
# TYPE version_info info
# HELP version_info Package description and version information
version_info{name="my-package",description="Version of my-package used for build",version="1.0.0-1"} 1
The above metrics entry would result in the following JSON representation:
"version_metrics": [
{
"name": "my-package",
"description": "Version of my-package used for build",
"version": "1.0.0-1"
}
]
Size metrics
Artifact size information in MebiBytes (MiB) and description can be derived from artifact_bytes metrics of type gauge, that define a name and a description label.
For the metrics to be considered, they have to be configured by adding a size_metrics list (a list of names to look for) to a release of a project.
# TYPE artifact_bytes gauge
# HELP artifact_bytes Artifact sizes in Bytes
artifact_bytes{name="foo",description="Size of foo in MiB"} 832
The above metrics entry would result in the following JSON representation:
"size_metrics": [
{
"name": "foo",
"description": "Size of foo in MiB",
"size": 832
}
]
Amount metrics
Information on the amount of something (e.g. packages) and description can be derived from data_count metrics of type summary, that define a name and a description label.
For the metrics to be considered, they have to be configured by adding a amount_metrics list (a list of names to look for) to a release of a project.
# TYPE data_count summary
# HELP data_count The amount of something used in some context
data_count{name="foo",description="The amount of packages in foo"} 369
The above metrics entry would result in the following JSON representation:
"amount_metrics": [
{
"name": "foo",
"description": "The amount of packages in foo",
"amount": 369
}
]
Promotion artifact
The promotion artifact is a ZIP compressed file (promotion.zip), that is uploaded to the project before its link is added to the release that it is promoting.
The file contains one directory for each release type that the project offers. In each release type directory there are is a JSON payload (<release_type>-<version>.json), a directory (<release_type>-<version>/) containing signatures for any files that have been setup for detached signatures and optionally a torrent file (<release_type>-<version>.json) that is created for the release type’s build artifacts and the detached signatures contained in the promotion artifact.
example
├── example-0.1.0
│ └── artifact.tar.gz.sig
├── example-0.1.0.json
└── example-0.1.0.torrent
JSON payload
The promotion of a release encompasses one or more JSON payloads, that describe each release type in the release.
{
"amount_metrics": [
{
"name": "foo",
"description": "The amount of packages in foo",
"size": 369
}
],
"developer": "Foobar McFooface <foobar@mcfooface.com>",
"files": ["something.txt", "something.txt.sig"],
"name": "foo",
"pgp_public_key": "SOMEONESPGPKEYID",
"size_metrics": [
{
"name": "foo",
"description": "Size of foo in MiB",
"size": 832
}
],
"torrent_file": "foo-0.1.0.torrent",
"version_metrics": [
{
"name": "my-package",
"description": "Version of my-package used for build",
"version": "1.0.0-1"
}
],
"version": "0.1.0"
}
amount_metrics: A list of objects that describe the amount of something (optional). The list depends on whether the project’s configuration defines amount_metrics and whether those metrics are available in the specific release.
developer: The full uid of the person promoting (and optionally signing artifacts in) the release type.
files: A list of files in the release type.
name: The name of the release type.
pgp_public_key: The PGP key ID of the key signing files in the release type.
size_metrics: A list of objects that describe the size of something (optional). The list depends on whether the project’s configuration defines size_metrics and whether those metrics are available in the specific release.
torrent_file (optional): The name of a torrent file created for the release type. The value depends on whether the configuration for the release type sets create_torrent to True.
version_metrics: A list of objects that describe the version of something (optional). The list depends on whether the project’s configuration defines version_metrics and whether those metrics are available in the specific release.
version: The version of the release type.
License
Arch-release-promotion is licensed under the terms of the GPL-3.0-or-later (see LICENSE).
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