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13 daysimage-builder: retry docker build once on failureDanilo M.1-0/+15
The -current full build failed on 2026-09-23 after all ten steps had passed, at layer export, losing a race on the containerd snapshotter's content lock ("failed to open writer: ref ... locked for 74ms ... unavailable"). Disk was not the issue this time (73G free). The build cache pre-prune that works around this only runs under --force, so the normal gated nightly build had no guard. Add docker_build() to lib.sh: docker build, retried once. By the time the export fails every step is cached, so the retry is little more than a re-export. Used by build-full-image.sh and build-sbo-testbuild.sh, the two scripts that export ~20-33G images; bootstrap.sh's image is small and has never hit this. Self-check covers success, one failure, and two failures with a stub. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-07image-builder: abort early when the docker daemon is unreachableDanilo M.1-0/+9
A dead dockerd is a global failure, not a per-variant one, but every stage treated it as the latter: the digest probes read an unreachable daemon as "no digest, rebuilding to be safe", the build then failed, and the variant loop logged "WARNING: variant X failed; continuing" and moved on. Cron kept exiting nonzero into a log nobody read, so a daemon that died in August went unnoticed for 25 days while no image was ever rebuilt. Add require_docker() to lib.sh, following the existing require_mount() precedent, and call it before the variant loop in all three stages. One loud error, exit 1, instead of a nightly pile of warnings. In build-full-image.sh the check goes before the --force cache prune, since that prune also talks to the daemon. Self-check stubs `docker` so it never contacts a real daemon. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AD4jP4wFMpBgEvd9ZP9Xhu
2026-07-14initial commit: docker test-build toolchainDanilo M.1-0/+84
Extracted from the .extras/ dir of the sbo-slackbuilds package repo, where it grew from a throwaway helper into a standalone tool. Git history starts fresh; the original 41-commit development log is preserved in HISTORY.md. Contents: the test-build CLI (resolves a local SlackBuild's deps from a configured SBo tree and builds it in a throwaway container, lints, caches deps), the image-builder chain that produces the images it consumes, their pure-logic self-checks, design specs/plans, an install.sh for ~/bin, and docs. Licensed GPLv2-only. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>