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Add --delete-volume and --delete-volume-full

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--delete-volume <name> removes a volume's config entry only.
--delete-volume-full <name> also recursively deletes its host
directory -- fails before touching the config if that deletion errors,
so a failed directory delete never silently drops the config entry;
warns instead of failing if the directory was already gone.

Both are long-only, following the --list-volumes precedent, and slot
into the existing multi-mode getopt dispatch the same way -v/--volume
already does.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Gv3s5jckJKzh6JkMoi2Akz
This commit is contained in:
Viorel Munteanu
2026-08-21 13:21:46 +00:00
parent afca0f7ce3
commit abf268e950
3 changed files with 97 additions and 17 deletions
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CLAUDE.md
+14 -9
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@@ -17,16 +17,20 @@ status); this file stays the dense, file-by-file reference. Still early-stage.
Source layout (all under `src/`):
- `main.cpp` — CLI entry point, dependency checks, orchestration (`mount_image()`,
`run_container()`, `cleanup_image()`, `unmount_image()`, `list_images_command()`,
`create_volume_command()`, `list_volumes_command()`). `run_container()`
unconditionally calls `read_oci_image_config()` and reuses the result for two
independent defaults: the command to run (`Entrypoint ++ Cmd`) when none is given
on the command line, and, when `--user` wasn't given, the sandboxed process's
user/group (`config.User`, split into `OciImageConfig::user`/`group`) — an
explicit `--user`/`--group` on the command line always takes precedence.
`create_volume_command()`, `list_volumes_command()`, `delete_volume_command()`).
`run_container()` unconditionally calls `read_oci_image_config()` and reuses the
result for two independent defaults: the command to run (`Entrypoint ++ Cmd`) when
none is given on the command line, and, when `--user` wasn't given, the sandboxed
process's user/group (`config.User`, split into `OciImageConfig::user`/`group`) —
an explicit `--user`/`--group` on the command line always takes precedence.
`create_volume_command()` implements `-v/--volume <name> <directory>`;
`list_volumes_command()` implements `--list-volumes` (same tab-alignment scheme as
`list_images_command()`, reused as-is) — see `config_file.{h,cpp}` below for what a
"volume" means here (a distinct concept from `OciImageConfig::volumes`).
`list_images_command()`, reused as-is); `delete_volume_command()` implements both
`--delete-volume <name>` (config entry only) and `--delete-volume-full <name>`
(also `std::filesystem::remove_all()`s the host directory — errors out before
touching the config if that fails, warns instead of failing if the directory was
already gone) — see `config_file.{h,cpp}` below for what a "volume" means here (a
distinct concept from `OciImageConfig::volumes`).
- `oci_image.{h,cpp}` — validates/parses the OCI Image Layout tar (libarchive +
nlohmann_json) and extracts layer blobs. `list_oci_images()` scans a directory
(non-recursively) for `*.tar`/`*.tar.*` files and, for each valid OCI archive,
@@ -155,7 +159,8 @@ Build directory is `buildDir/` (already configured).
- Run the executable: `./buildDir/slocker-lite -m <image.tar>` (see `--help` for the
full flag list: `-m/--mount`, `-r/--run`, `-u/--umount`, `-c/--cleanup`,
`-l/--list-images`, `-n/--no-nsenter`, `--user`, `--group`, `-v/--volume`,
`--list-volumes`, `-t/--test`, `--log-level`, `-h/--help`, `-V/--version`)
`--list-volumes`, `--delete-volume`, `--delete-volume-full`, `-t/--test`,
`--log-level`, `-h/--help`, `-V/--version`)
- Run tests: `meson test -C buildDir`
## Code style