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base repository: compose-spec/compose-go
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base: v2.12.1
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head repository: compose-spec/compose-go
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compare: v2.13.0
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  • 4 commits
  • 13 files changed
  • 4 contributors

Commits on Jun 29, 2026

  1. feat: add pre_start lifecycle hook for init containers 

    Implements the `pre_start` service field introduced in
compose-spec/compose-spec#647: an ordered list
of init containers run to completion before the service container
starts. Each step runs in its own ephemeral container; a non-zero exit
fails the bring-up of the service and its dependents.

Compose-go owns parsing, validation via JSON schema, and image
inheritance: when a pre_start hook omits `image`, it is normalized
to the parent service's image. Volume/network inheritance and the
runtime execution stay with docker/compose.

Signed-off-by: Guillaume Lours <glours@users.noreply.github.com>
    @glours
    glours committed Jun 29, 2026
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  2. fix(reset): preserve path escaping in cycle detection 

    checkForCycle called path.String(), which un-escapes dots inside
segment names. Service names containing "." (e.g. "test.other") were
then misidentified as sub-paths of services with shorter prefix names
(e.g. "test"), triggering a spurious "cycle detected" error.

Compare on the raw form and use Path.Parts() for the services check
so segment boundaries stay intact. Only render via .String() in the
error message.

Fixes docker/compose#13863

Signed-off-by: Guillaume Lours <glours@users.noreply.github.com>
    @glours
    glours committed Jun 29, 2026
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  3. Bump actions/setup-go from 6.4.0 to 6.5.0 

    Bumps [actions/setup-go](https://github.com/actions/setup-go) from 6.4.0 to 6.5.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@4a36011...924ae3a)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
    @dependabot @glours
    dependabot[bot] authored and glours committed Jun 29, 2026
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  4. perf(schema): compile compose-spec schema once 

    Validate rebuilt a jsonschema Compiler and recompiled the embedded
compose-spec schema (including loading and resolving the draft 2020-12
meta-schema) on every call. Compile it once behind a sync.Once instead,
which keeps Validate cheap on the loader hot path and makes it safe to
call concurrently without sharing any mutable compiler state.

Switch MustCompile to Compile so a schema compilation failure is
returned as an error instead of panicking. Add a concurrent Validate
test (run with -race) as a regression guard.

Relates to docker/compose#13866

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
    @ndeloof @claude @glours
    2 people authored and glours committed Jun 29, 2026
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