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Support top-level completion of user-installed cargo subcommands

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This expands completions of `cargo^I` to list any commands named `cargo-xxx` as
cargo subcommands invokable as `cargo xxx` in addition to the default oob
subcommands cargo ships with.

(This is very similar to how git allows users to shim their own subcommands.)

NOTE: This would stay even after cargo someday moves to clap and generates or
even ships/installs an official machine-generated `cargo.fish` completions
script.
This commit is contained in:
Mahmoud Al-Qudsi
2022-09-01 12:19:39 -05:00
parent 147105744e
commit db92109db5
1 changed files with 3 additions and 0 deletions
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3
share/completions/cargo.fish
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@@ -3,6 +3,9 @@
## --- WRITTEN MANUALLY ---
set -l __fish_cargo_subcommands (cargo --list 2>&1 | string replace -rf '^\s+([^\s]+)\s*(.*)' '$1\t$2' | string escape)
# Append user-installed extensions (e.g. cargo-foo, invokable as `cargo foo`) to the list of subcommands (à la git)
set -la __fish_cargo_subcommands (complete -C'cargo-' | string replace -rf '^cargo-(\w+).*' '$1')
complete -c cargo -f -c cargo -n __fish_use_subcommand -a "$__fish_cargo_subcommands"
complete -c cargo -x -c cargo -n '__fish_seen_subcommand_from help' -a "$__fish_cargo_subcommands"