Reformulate dev environment as a Dockerfile-based devcontainer#1
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Port the toolchain from the deprecated ARMCortexM-CppLib-DevEnv, dropping the prebuilt-image model in favour of a Dockerfile consumed directly as a devcontainer / CI container. - Dockerfile: arm-none-eabi GCC 14.3.rel1, CMake, Ninja, Task and LLVM FileCheck. Removed cosign and the GHCR publish/sign/cleanup machinery; updated labels and licence to embedded-society / GPL-3.0. - CI: ci_pr_validation.yml (hadolint + docker build + Trivy, no push) and scheduled_build.yml (weekly no-cache build to catch upstream drift). - Dev config: .dockerignore, .editorconfig, .gitattributes, .vscode, .github (CODEOWNERS, dependabot). - README rewritten around build-from-Dockerfile / devcontainer usage. - Rename LICENSE -> LICENCE for org consistency. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Required by the embedded-society org Actions policy ("Require actions to
be pinned to a full-length commit SHA"). Each action now references a
40-char SHA with a version comment for Dependabot.
Also corrects the Trivy action pin: 0.34.2 was never a valid tag
(trivy-action tags are v-prefixed), updated to v0.36.0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Reformulates this repo from a prebuilt-image dev environment into a plain Dockerfile consumed directly as a devcontainer / CI container, porting the useful pieces from the deprecated
ARMCortexM-CppLib-DevEnv.What changed
arm-none-eabiGCC 14.3.rel1, CMake, Ninja, Task, and LLVM FileCheck. Removedcosignand the GHCR publish/sign/cleanup machinery (no image is published anymore). Labels + licence updated toembedded-society/ GPL-3.0.ci_pr_validation.yml(hadolint +docker buildwithout push + Trivy scan) andscheduled_build.yml(weeklyno-cachebuild so a vanished upstream download URL surfaces even without a PR)..dockerignore,.editorconfig,.gitattributes,.vscode/,.github/(CODEOWNERS, dependabot).LICENSE→LICENCEfor org consistency.Consumed by
arm-cortex-mx-core-testsadds this repo as a submodule and builds its.devcontainer+ CI from this Dockerfile.🤖 Generated with Claude Code