CHANGELOG

All notable changes to this project will be documented here.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.7.0 - 2026-03-10

Added

• crib prune command removes stale and orphan workspace images. Shows a dry-run preview with sizes before prompting for confirmation. --all includes orphan images from workspaces that no longer exist. --force / -f skips the prompt.
• crib remove now shows a preview of what will be deleted (container ID, images, state directory) and prompts for confirmation. Use --force / -f to skip.
• All crib-managed images are now labeled with crib.workspace={wsID}, enabling label-based discovery without name-pattern heuristics. Applied via --label on docker build and --change "LABEL ..." on docker commit (snapshots).
• Build images are automatically removed when a new build replaces them (hash change). The old image is deleted after the new one is successfully built.
• crib remove now deletes all labeled images for the workspace in addition to the container and workspace state.

Changed

• Breaking: Workspace IDs now include a 7-character hash of the absolute project path: {slug}-{hash} (e.g. my-app-a1b2c3d). Workspaces created before this change will not be recognized. Run crib remove (if still accessible) or delete ~/.crib/workspaces/ manually, then run crib up in each project to create a new workspace with the updated ID.

0.6.3 - 2026-03-09

Security

• OCI feature archives containing symbolic links are now rejected outright. Previously, crib rejected symlinks whose static target appeared to escape the extraction directory, but a chain of individually-safe symlinks could still compose into a directory escape: an earlier symlink pointing to the extraction root could be overwritten via the chain, redirecting subsequent file writes outside the extraction directory. Feature archives contain scripts and JSON and have no legitimate need for symlinks.

0.6.2 - 2026-03-09

Fixed

• crib stop followed by crib up now resumes from a snapshot when available, skipping the full image build and running only resume-flow lifecycle hooks (postStartCommand, postAttachCommand). Previously, stopping and starting a workspace re-ran the entire creation flow. Both single-container and compose paths are covered. crib rebuild still forces a full rebuild as before.
• SSH agent socket is now mounted at /run/ssh-agent.sock instead of /tmp/ssh-agent.sock. Docker-in-Docker features remount /tmp as a fresh tmpfs, which hid the bind-mounted socket and broke SSH agent forwarding in DinD containers.

0.6.1 - 2026-03-08

Fixed

• Compose container lookup fallback now filters by service name. Previously, when the primary service failed to start, crib could pick up the wrong container (e.g. postgres instead of rails-app) and show misleading logs in the error message. The fallback now uses compose ps --format json with service label matching, which also works on podman-compose (unlike compose ps -q <service> which podman-compose doesn’t support).

0.6.0 - 2026-03-08

Added

• crib cache clean --force / -f flag to skip confirmation prompt.
• DevContainer Feature entrypoints are now applied. Features that declare an entrypoint (e.g. docker-in-docker starting dockerd) now have their entrypoint baked into the image. Multiple feature entrypoints are chained via a wrapper script. Feature runtime capabilities (privileged, init, capAdd, securityOpt, mounts, containerEnv) are now applied at container creation time for both single-container and compose paths.

Security

• Reject OCI feature archives containing symlinks that escape the extraction directory (absolute targets or relative traversal). Previously, a malicious feature archive could write to arbitrary host paths via symlinks.
• CI workflows now use explicit permissions: contents: read instead of GitHub’s default read-write.

Changed

• Breaking: The -V shorthand for --verbose has been removed. Use --verbose instead. The -v shorthand remains reserved for --version, matching CLI conventions.
• CLI now exits with code 2 for usage errors (bad flags, missing arguments) instead of code 1, making it easier to distinguish user mistakes from runtime failures in scripts.
• Noisy host-specific environment variables (LS_COLORS, DISPLAY, WAYLAND_DISPLAY, XDG_SESSION_*, DBUS_SESSION_BUS_ADDRESS, TERM_PROGRAM, COLORTERM, DESKTOP_SESSION, etc.) are now filtered from the probed environment. These are meaningless inside containers and cluttered the output of crib run -- env. Users can still force any filtered variable via remoteEnv in devcontainer.json.

Fixed

• SSH known_hosts could not be written inside the container. The SSH plugin created ~/.ssh/ as root but only chowned individual files, leaving the directory root-owned. The container user could not create new files in it.
• Plugin environment variables (e.g. BUNDLE_PATH, CARGO_HOME, HISTFILE) now survive crib restart. Previously, simple restart paths only preserved plugin PathPrepend entries but silently dropped plugin Env values. The values survived only because they were present in the stored result from a previous crib up, but a plugin that changed an env value between restarts would have the old stored value win over the fresh one.
• crib delete now removes named volumes declared in compose files (e.g. database data). Previously, docker compose down ran without --volumes, leaving orphaned volumes behind.
• crib restart no longer loses software installed by lifecycle hooks (e.g. mise-managed ruby/node) on compose workspaces. The compose override now references the snapshot image, so even if the container is recreated, the hook-installed state is preserved.
• Compose restart paths (crib restart, crib up on stopped containers) now preserve the stored ImageName in workspace state. Previously, these paths saved an empty ImageName, causing subsequent operations to lose track of the feature image.
• Preserve Docker image PATH entries (e.g. /usr/local/bundle/bin in ruby images) that login shells drop during the env probe. Previously, crib exec could lose these entries, requiring bundle exec or similar wrappers.
• Plugin PATH additions (e.g. ~/.bundle/bin for bundler cache) now work with zsh. Previously relied on /etc/profile.d/ scripts which zsh doesn’t source. PATH additions are now injected directly via remoteEnv.
• crib cache clean and crib cache list no longer require workspace state to exist. They now work even if crib up was never run or the project was deleted.
• crib cache clean --all now prompts for confirmation since it removes volumes from other projects.
• Sensitive env var values (tokens, keys, passwords) are now redacted in --debug output. Previously, values like GITHUB_TOKEN appeared in plaintext in exec command logs.
• crib restart and redundant crib up no longer lose probed environment (mise, rbenv, nvm PATH entries) or plugin PATH additions. Previously, restart paths that skip env re-probing overwrote the saved remoteEnv, so crib run could not find tools like ruby or node after a restart.
• Plugin dispatch in the already-running container path now passes arguments in the correct order. Previously, the remote user was passed as the image name, causing plugins to see an incorrect image and potentially resolve wrong home directory paths.

0.5.0 - 2026-03-05

Added

• crib run command: runs commands through a login shell so tools installed by version managers (mise, asdf, nvm, rbenv) are available on PATH. Use instead of crib exec when the command depends on shell init files.
• crib cache list and crib cache clean commands for inspecting and removing package cache volumes. --all flag operates across all workspaces.
• Package cache volumes are now per-workspace (crib-cache-{workspace}-{provider}) instead of shared globally. This prevents cross-contamination between projects.
• crib logs command with --follow/-f and --tail flags. Shows container logs for single-container workspaces; shows all service logs for compose workspaces.
• crib doctor command to detect and fix workspace health issues. Checks runtime availability, compose availability, orphaned workspaces (source directory deleted), dangling containers (crib label but no workspace state), and stale plugin data. Use --fix to auto-clean.
• Package cache sharing plugin: shares host package caches (npm, pip, go, cargo, maven, gradle, bundler, apt, downloads) via named Docker volumes. Configure in .cribrc: cache = npm, pip, go. The downloads provider is a general-purpose cache directory at ~/.cache/crib (exposed via CRIB_CACHE env var) for ad hoc file caching. The bundler provider sets BUNDLE_BIN and adds ~/.bundle/bin to PATH via /etc/profile.d/, so gem executables like rspec work directly in crib shell and crib run.
• Build-time cache mounts: when package cache providers are configured, crib attaches BuildKit --mount=type=cache directives to DevContainer Feature install steps. This speeds up feature installation across rebuilds by reusing cached packages (especially apt).
• Auto-snapshot: after crib up completes create-time hooks, the container is committed to a local snapshot image. On subsequent crib restart recreations, the snapshot is used so hook effects are already baked in. If hook definitions change, the snapshot is considered stale and full setup runs instead. crib rebuild always starts fresh.
• Each plugin now emits a progress line (“Running plugin: <name>”) during crib up and crib rebuild, visible without any flags.

Fixed

• bundler cache provider: mount volume at ~/.bundle instead of ~/.bundle/cache to avoid permission errors creating ~/.bundle/bin (Docker created the parent directory as root).
• crib cache list: compose workspaces showed the full volume name (including compose project prefix) in the PROVIDER column. Also fixed compose override to declare volumes with explicit name: so new volumes use the expected name.
• Installation curl command now works in zsh (URL was missing quotes, causing a parse error with the embedded sed expression). Archive filenames no longer include the version, so releases/latest/download/crib_linux_amd64.tar.gz is a stable URL that always points to the latest release.
• .env files with quoted values (KEY="value with spaces", KEY='value') and inline comments (KEY=value # comment) now parse correctly. Previously only bare KEY=value syntax was supported.
• workspaceMount strings with a missing target field now produce an explicit error instead of silently creating an unusable mount.
• Compose workspaces: stderr noise from compose up and compose down (e.g. “No container found”, SIGTERM warnings) is now suppressed in normal mode. Use -V / --verbose to see full compose output.
• Compose workspaces: crib up and crib rebuild now detect when the primary container exits immediately after compose up (e.g. port conflicts) and report a clear error with container logs, instead of cascading into confusing plugin copy and lifecycle hook failures.
• Plugin file copies now bail out on the first exec failure instead of logging identical errors for every remaining copy.
• Compose workspaces: crib restart now includes plugin-injected env vars and mounts (package cache, SSH agent, shell history, etc.) in the compose override. Previously the simple restart path skipped plugin dispatch, so these were missing until a full crib down && crib up.

0.4.1 - 2026-03-02

Fixed

• Plugins (coding-agents, ssh, shell-history) now run for Docker Compose workspaces with the correct container user. Previously, plugins only ran for single-container devcontainers, and the initial fix defaulted to root when remoteUser/containerUser weren’t set in devcontainer.json, causing permission errors (e.g. zsh: locking failed for /root/.crib_history/.shell_history). The engine now resolves the user from the compose service and image before dispatching plugins.
• Compose override files are now written to a system temp directory instead of inside .devcontainer/. Previously, chown -R during container setup could change ownership of the override file, making it unremovable by the host user.

0.4.0 - 2026-03-01

Added

• Plugin system with bundled plugin support for pre-container-run. Plugins can inject mounts, environment variables, extra run args, and file copies into containers. Fail-open error handling (one broken plugin doesn’t block container creation). See docs/plugin-development.md.
• coding-agents plugin: automatically injects Claude Code credentials into containers so AI coding tools work without re-authentication. Detects ~/.claude/.credentials.json on the host and copies it into the container. Supports a workspace credentials mode for teams that need org-specific accounts: set customizations.crib.coding-agents.credentials to "workspace" in devcontainer.json to persist container-created credentials across rebuilds instead of injecting host credentials.
• ssh plugin: shares SSH configuration with containers. Forwards the SSH agent socket, copies ~/.ssh/config and public keys, and extracts git SSH signing config (gpg.format=ssh) into a minimal .gitconfig. Private keys stay on the host; commit signing works via the forwarded agent (OpenSSH 8.2+).
• shell-history plugin: persists bash/zsh history across container recreations. Bind-mounts a history directory from workspace state and sets HISTFILE.
• Automatic port publishing for single-container workspaces. forwardPorts and appPort from devcontainer.json are now translated into --publish flags on docker run, so ports work without manual runArgs workarounds.
• Published ports shown on crib ps, crib up, crib restart, and crib rebuild. For compose workspaces, ports are parsed from docker compose ps output.
• Plugin customizations: plugins now receive customizations.crib from devcontainer.json, enabling per-project plugin configuration.
• Documentation website at fgrehm.github.io/crib, with llms.txt for AI tool discovery.
• -V / --verbose now prints each lifecycle hook command before running it (e.g. $ npm install), making it easier to diagnose hook failures.
• build.options from devcontainer.json is now passed to docker build / podman build as extra CLI flags (e.g. --network=host, --progress=plain).
• Object-syntax lifecycle hooks now run their named entries in parallel, matching the devcontainer spec. String and array hooks are unchanged (sequential).
• waitFor is now respected: a “Container ready.” progress message is emitted after the specified lifecycle stage completes (default: updateContentCommand).

Changed

• --debug now implies --verbose: subprocess stdout (hooks, build, compose) is shown when debug logging is active.
• crib shell now rejects arguments with a helpful error suggesting crib exec.

Fixed

• crib restart no longer fails with “cannot determine image name” on Dockerfile-based workspaces where the stored result had an empty image name. Falls back to rebuilding the image instead of erroring.
• crib rebuild no longer fails when no container exists (e.g. first build or after manual container removal).
• Container deletion is faster (skips stop grace period).
• make install now uses correct permissions.

0.3.1 - 2026-02-28

Fixed

• down / stop on rootless Podman no longer fails with “no pod with name or ID … found”. The x-podman: { in_pod: false } override was only passed during up, so compose down tried to remove a pod that never existed.
• rebuild now actually rebuilds images. Previously it passed Recreate: false to Up, which took the stored-result shortcut and skipped the image build.
• Environment probe now runs after lifecycle hooks (in addition to before), so the persisted environment for shell/exec includes tools installed by hooks (e.g. mise install in bin/setup).
• Filter mise internal state variables (__MISE_*, MISE_SHELL) from the probed environment. These are session-specific and confused mise when injected into a new shell via crib shell.

0.3.0 - 2026-02-27

Changed

• Rename stop to down (alias: stop). Now stops and removes the container instead of just stopping it, clearing lifecycle hook markers so the next up runs all hooks from scratch.
• Rename delete to remove (aliases: rm, delete). Removes container and workspace state.
• Add short aliases: list (ls), status (ps), shell (sh).
• rebuild no longer needs to re-save workspace state after removing the container (uses down instead of the old delete).
• Display crib version at the start of up, down, remove, rebuild, and restart commands. Dev builds include commit SHA and build timestamp.
• Suppress noisy compose stdout (container name listings) during up/down/restart. Use --verbose / -V to see full compose output.
• status / ps now shows all compose service statuses for compose workspaces.

Fixed

• Lifecycle hooks (onCreateCommand, updateContentCommand, postCreateCommand) now run after down + up cycle. Previously, host-side hook markers persisted across container removal, causing hooks to be skipped.
• restart for compose workspaces now uses compose up instead of compose restart, fixing failures when dependency services (databases, sidecars) were stopped.
• up after down for compose workspaces no longer rebuilds images. When a stored result exists with a previously built image, the build is skipped and services are started directly.

0.2.0 - 2026-02-26

Added

• crib restart command with smart change detection
  • No config changes: simple container restart, runs only resume-flow hooks (postStartCommand, postAttachCommand)
  • Safe changes (volumes, mounts, ports, env, runArgs, user): recreates container without rebuilding the image, runs only resume-flow hooks
  • Image-affecting changes (image, Dockerfile, features, build args): reports error and suggests crib rebuild
• RestartContainer method in container driver interface
• Restart method in compose helper
• Smart Restart section in README
• New project logo

Changed

• Refactor engine package: extract change.go, restart.go from engine.go
• Deduplicate config parsing (parseAndSubstitute) and user resolution (resolveRemoteUser)

0.1.0 - 2026-02-25

Added

• Core crib CLI for managing dev containers
• Support for Docker and Podman via single OCI driver
• .devcontainer configuration parsing, variable substitution, and merging
• All three configuration scenarios: image-based, Dockerfile-based, Docker Compose-based
• DevContainer Features support with OCI image resolution and ordering
• Workspace state management in ~/.crib/workspaces/
• Implicit workspace resolution from current working directory
• Commands: up, stop, delete, status, list, exec, shell, rebuild, version
• All lifecycle hooks: initializeCommand, onCreateCommand, updateContentCommand, postCreateCommand, postStartCommand, postAttachCommand
• userEnvProbe support for probing user environment (mise, rbenv, nvm, etc.)
• Image metadata parsing (devcontainer.metadata label) with spec-compliant merge rules
• updateRemoteUserUID with UID/GID sync and conflict resolution
• Auto-injection of --userns=keep-id / userns_mode: "keep-id" for rootless Podman
• Container user auto-detection via whoami for compose containers
• Early result persistence so exec/shell work while lifecycle hooks are still running
• Version info on error output for debugging
• Container naming with crib-{workspace-id} convention
• Container labeling with crib.workspace={id} for discovery
• Build and test tooling (Makefile, golangci-lint v2, pre-commit hooks)
• Debug logging via --debug flag