feat(volta): add volta plugin (#10441)

For Volta JavaScript toolchain
https://github.com/volta-cli/volta

plugins/volta/README.md

+# Volta
+
+This plugin provides completion for [Volta](https://volta.sh/).
+
+To use it add volta to the plugins array in your zshrc file.
+
+```bash
+plugins=(... volta)
+```
+
+This plugin installs no aliases.

plugins/volta/_volta

+#compdef volta
+
+autoload -U is-at-least
+
+_volta() {
+    typeset -A opt_args
+    typeset -a _arguments_options
+    local ret=1
+
+    if is-at-least 5.2; then
+        _arguments_options=(-s -S -C)
+    else
+        _arguments_options=(-s -C)
+    fi
+
+    local context curcontext="$curcontext" state line
+    _arguments "${_arguments_options[@]}" \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+'-v[Prints the current version of Volta]' \
+'--version[Prints the current version of Volta]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+":: :_volta_commands" \
+"*::: :->Volta" \
+&& ret=0
+    case $state in
+    (Volta)
+        words=($line[1] "${words[@]}")
+        (( CURRENT += 1 ))
+        curcontext="${curcontext%:*:*}:volta-command-$line[1]:"
+        case $line[1] in
+            (fetch)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':tool[@version] -- Tools to fetch, like `node`, `yarn@latest` or `your-package@^14.4.3`.:_files' \
+&& ret=0
+;;
+(install)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':tool[@version] -- Tools to install, like `node`, `yarn@latest` or `your-package@^14.4.3`.:_files' \
+&& ret=0
+;;
+(uninstall)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':tool -- The tool to uninstall, e.g. `node`, `npm`, `yarn`, or <package>:_files' \
+&& ret=0
+;;
+(pin)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':tool[@version] -- Tools to pin, like `node@lts` or `yarn@^1.14`.:_files' \
+&& ret=0
+;;
+(ls)
+_arguments "${_arguments_options[@]}" \
+'--format=[Specify the output format]: :(human plain)' \
+'(-d --default)-c[Show the currently-active tool(s)]' \
+'(-d --default)--current[Show the currently-active tool(s)]' \
+'(-c --current)-d[Show your default tool(s).]' \
+'(-c --current)--default[Show your default tool(s).]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+'::tool -- The tool to lookup - `all`, `node`, `yarn`, or the name of a package or binary.:_files' \
+&& ret=0
+;;
+(list)
+_arguments "${_arguments_options[@]}" \
+'--format=[Specify the output format]: :(human plain)' \
+'(-d --default)-c[Show the currently-active tool(s)]' \
+'(-d --default)--current[Show the currently-active tool(s)]' \
+'(-c --current)-d[Show your default tool(s).]' \
+'(-c --current)--default[Show your default tool(s).]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+'::tool -- The tool to lookup - `all`, `node`, `yarn`, or the name of a package or binary.:_files' \
+&& ret=0
+;;
+(completions)
+_arguments "${_arguments_options[@]}" \
+'-o+[File to write generated completions to]' \
+'--output=[File to write generated completions to]' \
+'-f[Write over an existing file, if any.]' \
+'--force[Write over an existing file, if any.]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':shell -- Shell to generate completions for:(zsh bash fish powershell elvish)' \
+&& ret=0
+;;
+(which)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':binary -- The binary to find, e.g. `node` or `npm`:_files' \
+&& ret=0
+;;
+(use)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+'::anything:_files' \
+&& ret=0
+;;
+(setup)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+&& ret=0
+;;
+(run)
+_arguments "${_arguments_options[@]}" \
+'--node=[Set the custom Node version]' \
+'(--bundled-npm)--npm=[Set the custom npm version]' \
+'(--no-yarn)--yarn=[Set the custom Yarn version]' \
+'*--env=[Set an environment variable (can be used multiple times)]' \
+'(--npm)--bundled-npm[Forces npm to be the version bundled with Node]' \
+'(--yarn)--no-yarn[Disables Yarn]' \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+':command -- The command to run:_files' \
+'::args -- Arguments to pass to the command:_files' \
+&& ret=0
+;;
+(help)
+_arguments "${_arguments_options[@]}" \
+'-h[Prints help information]' \
+'--help[Prints help information]' \
+'-V[Prints version information]' \
+'--version[Prints version information]' \
+'--verbose[Enables verbose diagnostics]' \
+'(--verbose)--quiet[Prevents unnecessary output]' \
+&& ret=0
+;;
+        esac
+    ;;
+esac
+}
+
+(( $+functions[_volta_commands] )) ||
+_volta_commands() {
+    local commands; commands=(
+        "fetch:Fetches a tool to the local machine" \
+"install:Installs a tool in your toolchain" \
+"uninstall:Uninstalls a tool from your toolchain" \
+"pin:Pins your project's runtime or package manager" \
+"list:Displays the current toolchain" \
+"completions:Generates Volta completions" \
+"which:Locates the actual binary that will be called by Volta" \
+"use:" \
+"setup:Enables Volta for the current user / shell" \
+"run:Run a command with custom Node, npm, and/or Yarn versions" \
+"help:Prints this message or the help of the given subcommand(s)" \
+    )
+    _describe -t commands 'volta commands' commands "$@"
+}
+(( $+functions[_volta__completions_commands] )) ||
+_volta__completions_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta completions commands' commands "$@"
+}
+(( $+functions[_volta__fetch_commands] )) ||
+_volta__fetch_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta fetch commands' commands "$@"
+}
+(( $+functions[_volta__help_commands] )) ||
+_volta__help_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta help commands' commands "$@"
+}
+(( $+functions[_volta__install_commands] )) ||
+_volta__install_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta install commands' commands "$@"
+}
+(( $+functions[_volta__list_commands] )) ||
+_volta__list_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta list commands' commands "$@"
+}
+(( $+functions[_ls_commands] )) ||
+_ls_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'ls commands' commands "$@"
+}
+(( $+functions[_volta__ls_commands] )) ||
+_volta__ls_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta ls commands' commands "$@"
+}
+(( $+functions[_volta__pin_commands] )) ||
+_volta__pin_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta pin commands' commands "$@"
+}
+(( $+functions[_volta__run_commands] )) ||
+_volta__run_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta run commands' commands "$@"
+}
+(( $+functions[_volta__setup_commands] )) ||
+_volta__setup_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta setup commands' commands "$@"
+}
+(( $+functions[_volta__uninstall_commands] )) ||
+_volta__uninstall_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta uninstall commands' commands "$@"
+}
+(( $+functions[_volta__use_commands] )) ||
+_volta__use_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta use commands' commands "$@"
+}
+(( $+functions[_volta__which_commands] )) ||
+_volta__which_commands() {
+    local commands; commands=(
+        
+    )
+    _describe -t commands 'volta which commands' commands "$@"
+}
+
+_volta "$@"
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