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* refactor: extract EFI_DIR constant for the install-time EFI mount pointCraig Jennings2026-04-261-6/+6
| | | | | | | | | | The literal /mnt/efi appeared at 17 sites across installer/archangel and installer/lib/btrfs.sh. Renaming it (or pointing tests at a different mount) meant touching every site and risking incomplete sweeps. One canonical name in installer/lib/common.sh now backs every reference. EFI_DIR has no trailing slash so the three expansion patterns in the codebase compose cleanly. Bare ($EFI_DIR), sub-path ($EFI_DIR/EFI/ZBM), and the index-suffix used by install_grub_all_efi for secondary EFI mounts (${EFI_DIR}${i}). The sync_efi_partitions staging path also moves from the literal /mnt/efi_sync to ${EFI_DIR}_sync, so it follows EFI_DIR if anyone ever changes the base. Two follow-ups filed as separate :techdebt: items. MNTPOINT=/mnt extraction across the 50+ /mnt/... sites (pacstrap, arch-chroot, fstab writes), and the related /mnt${chroot_efi_dir} composition pattern at btrfs.sh:681-682. Both ship together when MNTPOINT lands. Verified: bats 134 → 135 (+1 pinning EFI_DIR=/mnt/efi). Lint clean. All four expansion patterns smoke-tested at runtime and produce the original literal byte-for-byte. VM run skipped, pure constant substitution with zero behavior change.
* refactor: decompose install_btrfs into named orchestration stagesCraig Jennings2026-04-131-0/+80
| | | | | | | | | | | | | | | | | | | | | | | | | Pull the single-vs-multi-disk and LUKS-vs-no-encryption branching out of install_btrfs() into five helpers in lib/btrfs.sh: - btrfs_open_encryption — LUKS open + fill devices array - btrfs_make_filesystem — create_btrfs_volume dispatch - btrfs_configure_luks_target — in-chroot LUKS config - btrfs_install_grub — GRUB primary + multi-disk mirror - btrfs_close_encryption — LUKS close (cleanup) Helpers use namerefs (local -n) to take the caller's arrays as locals instead of promoting them to globals. install_btrfs() drops from ~99 lines of nested if-then-else to a ~45-line flat sequence of named stages — matching the style of install_zfs(). Behavior preserved — this is pure code movement, no new disk/LUKS operations. No unit tests added for the new helpers: they all wrap real LUKS/mkfs.btrfs calls that need block devices and root; VM integration tests in scripts/test-install.sh remain the source of truth. .shellcheckrc: disable SC2178 (nameref array heuristic) and SC2153 (globals from sourced files) — both recurring false positives. make test: 65/65. shellcheck clean.
* fix: use pbkdf2 for LUKS2 containers instead of argon2idCraig Jennings2026-04-091-2/+5
| | | | | GRUB's LUKS2 support only handles pbkdf2. When /boot is inside the encrypted volume, argon2id causes GRUB to reject the correct password.
* refactor: rename custom/ to installer/ for clarityCraig Jennings2026-02-231-0/+900
The custom/ directory name was an archiso implementation detail. Renamed to installer/ which clearly communicates that this directory contains the installer scripts and utilities that ship on the ISO. Updated all references in build.sh, Makefile, test-install.sh, and README.