fix/ls 1 flag 2058#2061
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Pure refactor with no behavior change — pulls the flag-merging and path handling into a standalone function so it can be unit-tested without spawning an `ls` subprocess. The forced `-la` enforcement and `-l`/`-a`/ `-h` stripping move with it. Existing tests pass unchanged. Prepares ground for rtk-ai#2058 fix where the strip list needs to grow to cover display-format flags that override `-l`. Signed-off-by: penpal <unameme@proton.me>
`rtk ls -1 path/` returned `(empty)` (or raw filenames on the fallback path) because BSD `/bin/ls` honors the last format flag — `ls -la -1` produces filename-only output the parser can't decode. Strip `-1`, `-C`, `-m`, `-x` from short-flag combinations alongside the already-enforced `-l`/`-a`/`-h`. RTK's compact output is already one-per-line, so users get the layout they asked for. Compound flags like `-1r` preserve `-r`. Includes the rtk-ai#2058 regression test on the primary failure case. Broader coverage (placement variations, sibling flags, compound splits, mixed groups, repetition) follows in a separate test commit. Signed-off-by: penpal <unameme@proton.me>
Adds 14 more unit tests around the fix from the previous commit so future refactors can't silently regress it: - placement variations: `-1` bare, before path, after path, no path - sibling format flags: `-C`, `-m`, `-x` - harmless flag preservation: `-r`, `-t`, `-S`, `--reverse` - compound splits: `-1r` → `-r`, `-lar` → `-r` - multiple format flags combined: `-1C`, `-1Cmx` - format flags mixed with -la: `-la1`, `-1la`, `-l1a` - compound with several kept chars: `-1rt`, `-r1t` - repeated format flag across args: `[-1 -1 -r path/]` - end-to-end safety net: BSD filename-only output through compact_ls The repetition test in particular guards against someone refactoring the per-arg char filter into a global one-shot strip, which would pass the simple cases but lose state across args. Signed-off-by: penpal <unameme@proton.me>
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Summary
rtk ls -1 path/Always Return(empty)#2058:rtk ls -1 path/returned(empty)on BSD/bin/lsbecausels -la -1honors the last format flag, producing filename-only output the parser can't decode.-1,-C,-m,-x) alongside the already-enforced-l/-a/-hbefore invoking ls. RTK's compact output is one-per-line anyway, so users get the layout they asked for.build_ls_args), fix (+ primary regression test), test (14 more edge cases covering placement, sibling flags, compound splits, mixed groups, repetition).Test plan
cargo fmt --all && cargo clippy --all-targets && cargo test— 1943 pass, 0 fail, clippy cleanPATH=/bin:/usr/bin rtk ls -1 /tmp/testdir/returns compact output (a.txt 0B...), not(empty)or raw filenames