Dont check in completion scripts

.github/workflows/ci.yaml

@@ -30,12 +30,6 @@ jobs:
     - name: Format
       run: cargo fmt --all -- --check
 
-    - name: Completion Scripts
-      run: |
-        ./bin/update-completions
-        git diff --no-ext-diff --quiet --exit-code
-        ./tests/completions/just.bash
-
     - name: Install Dependencies
       run: |
         sudo apt-get update

.github/workflows/release.yaml

@@ -73,6 +73,14 @@ jobs:
       id: ref-type
       run: cargo run --package ref-type -- --reference ${{ github.ref }} >> $GITHUB_OUTPUT
 
+    - name: Generate Completion Scripts
+      run: |
+        set -euxo pipefail
+        cargo build
+        for shell in bash elvish fish powershell zsh; do
+          ./target/debug/just --completions $shell > completions/just.$shell
+        done
+
     - name: Package
       id: package
       env:

README.md

@@ -3472,18 +3472,18 @@ complete -F _just -o bashdefault -o default j
 
 ### Shell Completion Scripts
 
-Shell completion scripts for Bash, Zsh, Fish, PowerShell, and Elvish are
-available in the
-[completions](https://github.com/casey/just/tree/master/completions) directory.
-Please refer to your shell's documentation for how to install them.
+Shell completion scripts for Bash, Elvish, Fish, Nushell, PowerShell, and Zsh
+are available [release archives](https://github.com/casey/just/releases).
 
-The `just` binary can also generate the same completion scripts at runtime,
-using the `--completions` command:
+The `just` binary can also generate the same completion scripts at runtime
+using `just --completions SHELL`:
 
 ```sh
 $ just --completions zsh > just.zsh
 ```
 
+Please refer to your shell's documentation for how to install them.
+
 *macOS Note:* Recent versions of macOS use zsh as the default shell. If you use
 Homebrew to install `just`, it will automatically install the most recent copy
 of the zsh completion script in the Homebrew zsh directory, which the built-in