## Description
You can now tell bottom which column the process widget should be sorted
by at startup, instead of always falling back to CPU%.
It's settable in two places: a `default_sort` field under `[processes]`
in the config file, and a `--process_default_sort` CLI flag. The flag
accepts the same column-name aliases that already work in
`[processes].columns` (e.g. `cpu%`, `mem`, `pid`, `name`, `read`,
`t.write`, etc.), and the CLI flag wins over the config setting.
```toml
[processes]
default_sort = "mem"
```
```
btm --process_default_sort mem
```
This piggybacks on the same wiring that #2003 added for the disk and
temperature widgets, just routed through the existing `ProcTableConfig`
so the widget initializer can pick a non-default sort index without
touching any of the runtime sort code.
A few small things worth flagging:
- If the configured column is not actually present in the user's
`columns` list, the widget falls back to the existing default behaviour
(CPU% in normal/grouped mode, PID in tree mode) instead of silently
snapping to column 0. That keeps misconfiguration predictable.
- The deserializer for `ProcColumn` was refactored to share its parsing
with the CLI's value parser, so config-file and CLI accept the exact
same aliases. The set of accepted strings is unchanged from before.
I checked the `# columns =` workaround floating around in #810 and on
Stack Overflow; it changes layout but not the sort key, so it doesn't
actually solve the original ask.
## Issue
Closes: #810
## Testing
_If this change affects the program, please also indicate which
platforms were tested:_
- [ ] _Windows_
- [ ] _macOS (specify version below)_
- [x] _Linux (Kali, kernel 6.19)_
- [ ] _Other (specify below)_
Added unit tests for `ProcWidgetState::new` covering the happy path
(sort index actually lands on the configured column) and the fallback
path (configured column not in the column list). Also added valid +
invalid config integration tests under `tests/valid_configs/` and
`tests/invalid_configs/`, matching the pattern used for the disk/temp
default-sort tests.
`cargo test`, `cargo clippy --all -- -D warnings`, and `cargo fmt
--check` are all clean.
Manual smoke test: ran `btm --process_default_sort=mem` and `btm
--process_default_sort=garbage`. The first starts the widget sorted by
Mem%, the second exits early with `'garbage' is not a valid process
column for --process_default_sort` from the args layer. Also ran `btm -C
tests/valid_configs/proc_default_sort.toml` to confirm the config-file
path works the same way.
## Checklist
_Ensure **all** of these are met:_
- [x] _If this PR adds or changes a dependency, please justify this in
the description_ (no new deps)
- [x] _If this is a code change, areas your change affects have been
linted using (`cargo fmt`)_
- [x] _If this is a code change, your changes pass `cargo clippy --all
-- -D warnings`_
- [x] _If this is a code change, new tests were added if relevant_
- [x] _If this is a code change, your changes pass `cargo test`_
- [x] _The change has been tested to work (see above) and doesn't appear
to break other things_
- [x] _Documentation has been updated if needed (`README.md`, help menu,
docs, configs, etc.)_
- [x] _There are no merge conflicts_
- [x] _You have reviewed your changes first_
- [x] _The pull request passes the provided CI pipeline_
## Other
The schema under `schema/nightly/bottom.json` was regenerated via `cargo
run --features generate_schema --bin schema`; the only diff is the new
`default_sort` entry on `ProcessesConfig`, mirroring what's already
there on `DiskConfig` and `TemperatureConfig`.
---------
Co-authored-by: ClementTsang <dev@cjhtsang.ca>
* other: don't use manual map for color name mapping
I actually don't know why I was doing it like that before.
This commit removes the phf crate, as it's not needed anymore.
* update test
- Removal of the old slash-space-to-hide behaviour of CPU widget
- Scrolling onto a specific entry will only show that entry
- Showing average is now default
