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feat(fish-deps): build fish from source via git + cargo when upgrading

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Adds a git-cargo-fish install method that clones fish-shell, checks out
the latest tag, and runs `uv run --no-managed-python cargo install --path .`.
This is offered first in `fish-deps install` (requires cargo + uv) and
used automatically by `fish-deps update`, falling back to the system PM
when cargo or uv are absent.

Removes the stale `cargo install fish` README note (that crate is a
library, not the shell binary).
This commit is contained in:
Rootiest
2026-05-18 23:29:55 -04:00
parent fee2d99bea
commit 7936a0966e
4 changed files with 75 additions and 14 deletions
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README.md
+5 -6
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@@ -254,7 +254,10 @@ rm -f file.txt # Falls through to standard rm -f
| `fzf-update` | Install or upgrade fzf from git HEAD into `~/.fzf` (guarantees the latest build) |
| `check_fish_deps` | Legacy alias — delegates to `fish-deps status` |
Install method priority: **cargo** (for Rust tools, gets latest crate) → **system PM** (paru/apt/brew/etc.) → **git clone** (fzf) → **curl installer** (starship, fisher) → **pipx** (Python tools). When multiple methods are available for a tool, you are prompted to choose.
Install method priority: **git+cargo source build** (fish) → **cargo** (other Rust tools, gets latest crate) → **system PM** (paru/apt/brew/etc.) → **git clone** (fzf) → **curl installer** (starship, fisher) → **pipx** (Python tools). When multiple methods are available for a tool, you are prompted to choose.
> [!NOTE]
> Upgrading Fish from source requires **cargo** and **[uv](https://docs.astral.sh/uv/)**. If either is missing, `fish-deps install`/`update` will fall back to the system package manager instead.
### Docker
@@ -502,11 +505,7 @@ Named context shortcuts (e.g. `dcr`, `dck`) live in `~/.config/.user-dots/fish/l
> [!WARNING]
> Fish **4.0 or newer is required.** This config uses `test` syntax and other constructs that are incompatible with Fish 3.x. Older versions will produce errors on startup.
> If you are on an older Fish, you can upgrade via cargo (Fish 4.x is a Rust rewrite published to crates.io):
> ```
> cargo install fish
> ```
> Or run `fish-deps update` once cargo is available — it will upgrade Fish via cargo automatically.
> If you are on an older Fish, run `fish-deps install` or `fish-deps update` — it will build and install the latest Fish from source using git + cargo (requires cargo and uv).
### Recommended