+--------------------------------------------+ | Glacier roadmap | +--------------------------------------------+ What's left to build, in priority order. Status as of 2026-10-04. Design detail lives in the companion docs; this file says WHAT and in what order, and links to WHERE: SECURITY_DESIGN.txt integrity, scope separation, refusal matrix PACKAGE_SCOPES.txt layout, link routing, /etc config handling IMAGE_DESIGN.txt system images as bootstrap output, sysroot GLACIER_BOOTSTRAP.txt glacier-bootstrap plan, prerequisites, decisions Mark an item [DONE yyyy-mm-dd] rather than deleting it, so the history stays readable. CLAUDE.md "Known open items" tracks small bugs; this file tracks work. +--------------------------------------------+ | 1. Install Everest with glacier alone | +--------------------------------------------+ The critical path: from "QEMU boots an initramfs assembled by a script" (~/Projects/everest) to "glacier installs a system". 1.1 sysroot in the library (IMAGE_DESIGN section 3). Every path is hardcoded to /glacier and /usr. Needs separate install-root (where bytes are written) and runtime-root (what symlink targets say). The trap: prune_stale_links follows absolute links, so a naive prefix would judge the image's links against the HOST's filesystem. Required test: an image build leaves the host's /usr and /glacier byte-identical. 1.2 syspkg --root DIR (refuses unless DIR and its ancestors are root-owned and not group/world-writable) and --strict (any link refusal fails the transaction; an image's /usr starts empty). gl_create_fs_tree already takes a root prefix. 1.3 glacier-bootstrap, local mode (GLACIER_BOOTSTRAP.txt sections 1-6). Template index -> resolve -> verify -> syspkg --root, one transaction. Never writes into TARGET itself. 1.4 Packages for glacier itself, so an installed system can manage itself: luajit, libarchive (+ zlib), libconfig, libglacier-ng, glacier-ng (syspkg, gpkg, gstore), doas. 1.5 The installer. Undesigned; needs its own design session (SECURITY_DESIGN section 10). Partitioning, a bootloader or an EFI-stub kernel on the ESP, copying the kernel there (a symlink won't do on FAT), a disk image. Already done on this path: hash verification, package symlinks, the merged-/usr tree on syspkg -n, /etc config handling, a QEMU-bootable musl + busybox + linux + everest-bootscripts set. +--------------------------------------------+ | 2. Package-manager features | +--------------------------------------------+ 2.1 UPGRADES. Spec (2026-10-04): - Replacing an installed version is `-lO` (local file) — plain -l refuses ("extra::foo 1.0.0 is already installed.", nothing more). [DONE 2026-10-04] - The replaced version is BACKED UP: its files compressed into /backup///-.gpkg + .sha256, a complete installable package (saved manifest included). KEEP_OLD in glacier.conf = how many backups to keep per package (0 = none). No default: glacier.conf ships with KEEP_OLD = 1, and an operation that would replace a version refuses if it's missing or invalid. [DONE 2026-10-04] - A restore interface for backups: later. (A backup can already be reinstalled with -lO.) - `gpkg -u` / `syspkg -u` = upgrade from a REMOTE repository; waits for 3.1, like -f. - /etc follows the existing config rules regardless. 2.2 gpkg -f / syspkg -f: MERGE. Spec (2026-10-04): exactly like -l, except the package comes from a remote repository by name instead of from a local file. Same summary, verification, scope rules and transaction. Depends on 3.1 (remote repositories + signing): until then there is nothing safe to fetch from. 2.3 Dependencies. PKG_DEPS / PKG_CONFS are parsed and ignored. - install: refuse if a dependency isn't installed (or in the same transaction); - REMOVE: refuse to remove a package others depend on. Today nothing stops `syspkg -x musl` from breaking every binary on the system. Highest-value item in this section; - conflicts: refuse to install a package that conflicts with an installed one. Check-only vs automatic resolution: GLACIER_BOOTSTRAP decision 9e. 2.4 Queries: list installed packages, show a package's details, find which package owns a file. The index has the data; no CLI shows it. 2.5 Rollback. Every commit moves the previous state to old/ and then deletes it. Keep it (or the last N), plus a command to return to it. Interacts with 2.1's KEEP_OLD. 2.6 File conflicts between packages: two packages shipping the same path — whichever links last silently wins. Detect and refuse. 2.7 glacier.conf parsing. [DONE 2026-10-04 for integers: gl_conf_get_int, no defaults, missing/unreadable/wrong-type are distinct errors.] Still open: rejecting UNKNOWN keys (CLAUDE.md bug 10's lesson — a misspelled KEEP_OLD currently reads as "not set", which at least fails loudly). 2.8 gstore: -s (sync) is a stub; there's no restore command although gstore -b's output tells you to run -r (gl_restore_istore exists). 2.9 User-scope config files: user packages still link etc/ into a links tree that's rebuilt on every commit. 2.10 Hardlink entries in package archives are skipped at extraction. +--------------------------------------------+ | 3. Security | +--------------------------------------------+ 3.1 Remote repositories + signing (authenticity, keyring). The agreed next major item; separate design pass. Unblocks 2.2 and remote glacier-bootstrap. Until then, GLACIER_BOOTSTRAP's pinned templates are the safe bridge for remote fetches. 3.2 Hash verification lives in the CLIs' shared module. A third-party tool calling gl_install_pkg directly isn't verified. Consider moving it into the library, like the base-in-user-scope refusal. 3.3 Manifests don't record the SYS_PROFILE they were built under, so a package built for the wrong target can't be detected. 3.4 gstore -n accepts UIDs with no passwd entry (pre-provisions a directory nobody owns yet; a typo creates a stray one). +--------------------------------------------+ | 4. Build tooling | +--------------------------------------------+ 4.1 gbuild system profiles (-P ARCH-LIBC[-FEATURE...]) and gworld's SYS_PROFILE recipe field. CLAUDE.md described both as done; neither exists in the tree (only one gbuild, in glacier-ng). Today the target libc is decided by where gbuild runs (~/Projects/everest builds in Alpine for musl). 4.2 Move ~/Projects/everest's per-package gbuild commands into gworld recipes once 4.1 lands. +--------------------------------------------+ | 5. Performance (not urgent) | +--------------------------------------------+ 5.1 gl_relink_store / gl_rebuild_index rescan the whole store on every commit. Fine at current scale; a dirty set is the fix. +--------------------------------------------+ | 6. Decisions waiting | +--------------------------------------------+ - Images are only ever bootstrap OUTPUT (IMAGE_DESIGN 9a / GLACIER_BOOTSTRAP 9a). - Template index format (GLACIER_BOOTSTRAP 9b). - Dependencies: check-only or automatic (GLACIER_BOOTSTRAP 9e). - Where the pinning helper lives (GLACIER_BOOTSTRAP 9f). - 2.1's open questions a-d (upgrade backups). - extra vs community: should they ever behave differently? - The installer (1.5). +--------------------------------------------+ | 7. Done | +--------------------------------------------+ [DONE 2026-10-04] Version replacement + backups (2.1): -lO replaces, KEEP_OLD backups, gl_backup_pkg / gl_prune_backups / gl_conf_get_int, the manifest saved in the store (.glacier-manifest), add_to_archive learns symlinks (gstore -b silently dropped them too), gpkg modifier flags (-O -S -V) order-independent so `gpkg -lO` works. tests/upgrade_alpine.sh (29 checks). [DONE 2026-10-04] Correctness batch: - gbuild: autotools detected before a bare Makefile (bug 8 had regressed); --cross-prefix fixed (its option-table key was misspelled); -v/--version print the version as documented, with --verbose for verbose output. - gpkg -x: summary resolved from the index (was "unknown::pkg 0.0.0"); a package that isn't installed fails before the prompt. - gpkg: precise refusal for a missing / squatted / loosened user directory (was "No index found"), via gl_usr_base_status. - gpkg -h lists -l and -S; -f/-u described by the 2.1/2.2 specs. - Up-to-date reinstall logs once. - Link conflicts reported once, by the package that has them, not again on every later system commit (.glacier-fresh marker). - A failed extraction no longer leaves a half-extracted version dir (in a live context, every retry then said "already installed"). - Dead old-layout code removed from pkg.c (gl_prepare_pkgdir and the gl_usr_* / gl_sys_* dir_t constants). - tests/glacier_ffi.lua is a wrapper over lib/glacier_cdef.lua; its own copy had already drifted (missing GL_INSTALL_ERR_SCOPE). - Dockerfile.arch / .debian moved to the per-uid layout (root-owned /app, libglacier-ng built from source, the gstore -n doas rule). [DONE 2026-10-04] Hash verification; package symlinks; per-uid user layout + doas gstore -n; syspkg -n top-level tree; /etc config handling (copy + .new); -O/--overwrite; everest-bootscripts.