android-encrypted-archiver/.planning/phases/08-rust-directory-archiver/08-VERIFICATION.md

phase, verified, status, score, re_verification

phase	verified	status	score	re_verification
08-rust-directory-archiver	2026-02-26T19:10:00Z	passed	5/5 must-haves verified	false

Phase 8: Rust Directory Archiver Verification Report

Phase Goal: pack accepts directories and recursively archives them with full path hierarchy and permissions; unpack restores the complete directory tree Verified: 2026-02-26T19:10:00Z Status: passed Re-verification: No -- initial verification

Goal Achievement

Observable Truths

#	Truth	Status	Evidence
1	pack accepts a directory argument and recursively includes all files and subdirectories with relative paths	VERIFIED	collect_entries() dispatches to collect_directory_entries() which uses fs::read_dir() with DFS preorder recursion (archive.rs:150-194); test test_roundtrip_directory verifies files at testdir/subdir/nested.txt
2	pack handles mixed file and directory arguments in a single invocation	VERIFIED	collect_entries() (archive.rs:200-240) iterates all inputs and handles both is_dir() branches; test test_roundtrip_mixed_files_and_dirs packs standalone.txt + mydir/ and verifies both
3	Empty directories are stored as TOC entries with entry_type=0x01 and zero-length crypto fields	VERIFIED	make_directory_entry() (archive.rs:128-144) sets entry_type=1, all sizes=0, zeroed iv/hmac/sha256; test verifies testdir/empty is recreated as a directory
4	unpack creates the full directory hierarchy and restores Unix mode bits on files and directories	VERIFIED	unpack() handles directories at archive.rs:497-506 with create_dir_all + set_permissions(from_mode()), files at 564-570; test checks nested.txt=0o755, empty dir=0o700
5	inspect shows entry type (file/dir), relative paths, and octal permissions for each TOC entry	VERIFIED	inspect() prints type_str and perms_str at archive.rs:419-422; test test_inspect_shows_directory_info asserts stdout contains "dir", "file", permissions, and "Permissions:"

Score: 5/5 truths verified

Required Artifacts

Artifact	Expected	Status	Details
src/format.rs	v1.1 TocEntry with entry_type and permissions fields, VERSION=2, entry_size=104+name_length	VERIFIED	TocEntry has entry_type: u8 (line 31), permissions: u16 (line 32); VERSION=2 (line 7); entry_size returns 104+name.len() (line 328-329); write/read functions serialize both new fields
src/archive.rs	Recursive directory traversal in pack, directory handling in unpack with chmod, updated inspect	VERIFIED	collect_directory_entries() with DFS preorder (line 150); set_permissions(from_mode()) for dirs (line 500) and files (line 567); inspect prints type/perms (line 419-422); 587 lines total
src/cli.rs	Updated doc comments for directory support	VERIFIED	Pack doc: "Pack files and directories into an encrypted archive" (line 14); files doc: "Input files and directories to archive" (line 16)
tests/round_trip.rs	Directory round-trip integration test	VERIFIED	3 new tests: test_roundtrip_directory (line 198), test_roundtrip_mixed_files_and_dirs (line 263), test_inspect_shows_directory_info (line 305); all 9 integration tests pass

Key Link Verification

From	To	Via	Status	Details
src/archive.rs	src/format.rs	TocEntry with entry_type/permissions fields	WIRED	archive.rs constructs TocEntry with both entry_type (lines 277, 322) and permissions (lines 278, 323) from ProcessedFile
src/archive.rs	std::os::unix::fs::PermissionsExt	Unix mode bit restoration	WIRED	use std::os::unix::fs::PermissionsExt (line 6); set_permissions + from_mode used at lines 500-502 (dirs) and 567-569 (files)
src/archive.rs	std::fs::read_dir	Recursive directory traversal	WIRED	fs::read_dir(dir_path) at line 163 within collect_directory_entries() function

Requirements Coverage

Requirement	Source Plan	Description	Status	Evidence
DIR-01	08-01-PLAN	pack recursively traverses directories and adds all files	SATISFIED	collect_directory_entries() recursion with read_dir; test test_roundtrip_directory
DIR-02	08-01-PLAN	Relative paths preserved during archival (dir/subdir/file.txt)	SATISFIED	Path construction as base_name/child_name in collect_directory_entries() (line 169-173); test verifies testdir/subdir/nested.txt
DIR-03	08-01-PLAN	Empty directories stored as "directory" type TOC entries	SATISFIED	make_directory_entry() with entry_type=1, zero crypto; test verifies testdir/empty is recreated
DIR-04	08-01-PLAN	unpack creates full directory hierarchy	SATISFIED	create_dir_all() for directory entries (line 499) and parent dirs for files (line 513); test confirms nested structure
DIR-05	08-01-PLAN	unpack restores Unix mode bits for files and directories	SATISFIED	set_permissions(from_mode(entry.permissions)) for dirs (line 500-502) and files (line 567-569); test checks 0o755 and 0o700

No orphaned requirements found -- REQUIREMENTS.md maps exactly DIR-01 through DIR-05 to Phase 8.

Anti-Patterns Found

File	Line	Pattern	Severity	Impact
src/archive.rs	272, 282	"placeholder" comment on data_offset=0	Info	Intentional two-pass algorithm -- offset is overwritten at line 327. Not a stub.

No blockers or warnings found.

Human Verification Required

1. Smoke Test with Real Directory Tree

Test: Create a multi-level directory tree with mixed content, pack it, inspect, and unpack

mkdir -p /tmp/test/sub/deep && echo "hello" > /tmp/test/file.txt && echo "nested" > /tmp/test/sub/deep/file.txt && mkdir /tmp/test/empty
cargo run -- pack /tmp/test -o /tmp/test.aea
cargo run -- inspect /tmp/test.aea
cargo run -- unpack /tmp/test.aea -o /tmp/out
ls -laR /tmp/out/test/

Expected: All files extracted with correct content, empty directory exists, permissions match originals Why human: Visual confirmation of output format and real filesystem behavior

2. Permission Preservation on Specific Modes

Test: Create files with unusual permissions (0o700, 0o600, 0o555), pack and unpack Expected: Exact permission bits preserved after round-trip Why human: Edge case permission handling may differ across filesystems

Test Suite Results

All 41 tests pass (25 unit + 7 golden + 9 integration):

• 25 library unit tests: format, crypto, compression modules
• 7 golden test vectors: known-answer crypto tests
• 9 integration tests: 6 existing + 3 new directory tests

Commit Verification

All 3 task commits verified in git history:

• 4e25d19 feat(08-01): update format.rs for v1.1 TOC entry layout
• 7820c18 feat(08-01): add directory support to pack/unpack/inspect
• 8760981 test(08-01): add directory round-trip integration tests

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Verified: 2026-02-26T19:10:00Z Verifier: Claude (gsd-verifier)