Files
synapse/.github/dependabot.yml
T
Olivier 'reivilibre c376cdd2ee Configure Dependabot to only update Python dependencies in the lockfile. (#19743)
See:
- https://github.com/element-hq/synapse/pull/19742
- https://github.com/element-hq/synapse/pull/19686

(etc)

Documentation
https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference#versioning-strategy--

We were considering `lockfile-only` but it sounds like
`increase-if-necessary` would increase the upper bound for us, if we had
one. Let's try it.

---------

Signed-off-by: Olivier 'reivilibre <oliverw@matrix.org>
2026-04-29 18:17:53 +01:00

94 lines
3.1 KiB
YAML

version: 2
# As dependabot is currently only run on a weekly basis, we raise the
# open-pull-requests-limit to 10 (from the default of 5) to better ensure we
# don't continuously grow a backlog of updates.
updates:
- # "pip" is the correct setting for poetry, per https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#package-ecosystem
package-ecosystem: "pip"
directory: "/"
open-pull-requests-limit: 10
versioning-strategy: "increase-if-necessary"
schedule:
interval: "weekly"
# Group patch updates to packages together into a single PR, as they rarely
# if ever contain breaking changes that need to be reviewed separately.
#
# Less PRs means a streamlined review process.
#
# Python packages follow semantic versioning, and tend to only introduce
# breaking changes in major version bumps. Thus, we'll group minor and patch
# versions together.
groups:
minor-and-patches:
applies-to: version-updates
patterns:
- "*"
update-types:
- "minor"
- "patch"
# Prevent pulling packages that were recently updated to help mitigate
# supply chain attacks. 14 days was taken from the recommendation at
# https://blog.yossarian.net/2025/11/21/We-should-all-be-using-dependency-cooldowns
# where the author noted that 9/10 attacks would have been mitigated by a
# two week cooldown.
#
# The cooldown only applies to general updates; security updates will still
# be pulled in as soon as possible.
cooldown:
default-days: 14
- package-ecosystem: "docker"
directory: "/docker"
open-pull-requests-limit: 10
schedule:
interval: "weekly"
# For container versions, breaking changes are also typically only introduced in major
# package bumps.
groups:
minor-and-patches:
applies-to: version-updates
patterns:
- "*"
update-types:
- "minor"
- "patch"
cooldown:
default-days: 14
- package-ecosystem: "github-actions"
directory: "/"
open-pull-requests-limit: 10
schedule:
interval: "weekly"
# Similarly for GitHub Actions, breaking changes are typically only introduced in major
# package bumps.
groups:
minor-and-patches:
applies-to: version-updates
patterns:
- "*"
update-types:
- "minor"
- "patch"
cooldown:
default-days: 14
- package-ecosystem: "cargo"
directory: "/"
open-pull-requests-limit: 10
versioning-strategy: "lockfile-only"
schedule:
interval: "weekly"
# The Rust ecosystem is special in that breaking changes are often introduced
# in minor version bumps, as packages typically stay pre-1.0 for a long time.
# Thus we specifically keep minor version bumps separate in their own PRs.
groups:
patches:
applies-to: version-updates
patterns:
- "*"
update-types:
- "patch"
cooldown:
default-days: 14