337 lines
10 KiB
Rust
337 lines
10 KiB
Rust
use {super::*, clap::ValueEnum};
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#[derive(ValueEnum, Debug, Clone, Copy, PartialEq)]
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pub(crate) enum Shell {
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Bash,
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Elvish,
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Fish,
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#[value(alias = "nu")]
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Nushell,
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Powershell,
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Zsh,
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}
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impl Shell {
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pub(crate) fn script(self) -> RunResult<'static, String> {
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match self {
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Self::Bash => completions::clap(clap_complete::Shell::Bash),
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Self::Elvish => completions::clap(clap_complete::Shell::Elvish),
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Self::Fish => completions::clap(clap_complete::Shell::Fish),
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Self::Nushell => Ok(completions::NUSHELL_COMPLETION_SCRIPT.into()),
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Self::Powershell => completions::clap(clap_complete::Shell::PowerShell),
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Self::Zsh => completions::clap(clap_complete::Shell::Zsh),
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}
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}
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}
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fn clap(shell: clap_complete::Shell) -> RunResult<'static, String> {
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fn replace(haystack: &mut String, needle: &str, replacement: &str) -> RunResult<'static, ()> {
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if let Some(index) = haystack.find(needle) {
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haystack.replace_range(index..index + needle.len(), replacement);
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Ok(())
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} else {
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Err(Error::internal(format!(
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"Failed to find text:\n{needle}\n…in completion script:\n{haystack}"
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)))
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}
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}
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let mut script = {
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let mut tempfile = tempfile().map_err(|io_error| Error::TempfileIo { io_error })?;
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clap_complete::generate(
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shell,
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&mut crate::config::Config::app(),
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env!("CARGO_PKG_NAME"),
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&mut tempfile,
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);
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tempfile
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.rewind()
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.map_err(|io_error| Error::TempfileIo { io_error })?;
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let mut buffer = String::new();
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tempfile
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.read_to_string(&mut buffer)
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.map_err(|io_error| Error::TempfileIo { io_error })?;
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buffer
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};
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match shell {
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clap_complete::Shell::Bash => {
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for (needle, replacement) in completions::BASH_COMPLETION_REPLACEMENTS {
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replace(&mut script, needle, replacement)?;
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}
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}
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clap_complete::Shell::Fish => {
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script.insert_str(0, completions::FISH_RECIPE_COMPLETIONS);
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}
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clap_complete::Shell::PowerShell => {
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for (needle, replacement) in completions::POWERSHELL_COMPLETION_REPLACEMENTS {
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replace(&mut script, needle, replacement)?;
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}
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}
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clap_complete::Shell::Zsh => {
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for (needle, replacement) in completions::ZSH_COMPLETION_REPLACEMENTS {
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replace(&mut script, needle, replacement)?;
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}
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}
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_ => {}
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}
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Ok(script.trim().into())
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}
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const NUSHELL_COMPLETION_SCRIPT: &str = r#"def "nu-complete just" [] {
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(^just --dump --unstable --dump-format json | from json).recipes | transpose recipe data | flatten | where {|row| $row.private == false } | select recipe doc parameters | rename value description
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}
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# Just: A Command Runner
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export extern "just" [
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...recipe: string@"nu-complete just", # Recipe(s) to run, may be with argument(s)
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]"#;
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const FISH_RECIPE_COMPLETIONS: &str = r#"function __fish_just_complete_recipes
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if string match -rq '(-f|--justfile)\s*=?(?<justfile>[^\s]+)' -- (string split -- ' -- ' (commandline -pc))[1]
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set -fx JUST_JUSTFILE "$justfile"
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end
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just --list 2> /dev/null | tail -n +2 | awk '{
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command = $1;
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args = $0;
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desc = "";
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delim = "";
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sub(/^[[:space:]]*[^[:space:]]*/, "", args);
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gsub(/^[[:space:]]+|[[:space:]]+$/, "", args);
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if (match(args, /#.*/)) {
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desc = substr(args, RSTART+2, RLENGTH);
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args = substr(args, 0, RSTART-1);
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gsub(/^[[:space:]]+|[[:space:]]+$/, "", args);
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}
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gsub(/\+|=[`\'"][^`\'"]*[`\'"]/, "", args);
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gsub(/ /, ",", args);
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if (args != ""){
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args = "Args: " args;
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}
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if (args != "" && desc != "") {
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delim = "; ";
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}
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print command "\t" args delim desc
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}'
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end
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# don't suggest files right off
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complete -c just -n "__fish_is_first_arg" --no-files
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# complete recipes
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complete -c just -a '(__fish_just_complete_recipes)'
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# autogenerated completions
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"#;
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const ZSH_COMPLETION_REPLACEMENTS: &[(&str, &str)] = &[
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(
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r#" _arguments "${_arguments_options[@]}" : \"#,
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r" local common=(",
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),
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(
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r"'*--set=[Override <VARIABLE> with <VALUE>]:VARIABLE: :VARIABLE: ' \",
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r"'*--set=[Override <VARIABLE> with <VALUE>]: :(_just_variables)' \",
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),
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(
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r"'()-s+[Show recipe at <PATH>]:PATH: ' \
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'()--show=[Show recipe at <PATH>]:PATH: ' \",
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r"'-s+[Show recipe at <PATH>]: :(_just_commands)' \
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'--show=[Show recipe at <PATH>]: :(_just_commands)' \",
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),
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(
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"'*::ARGUMENTS -- Overrides and recipe(s) to run, defaulting to the first recipe in the \
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justfile:' \\
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&& ret=0",
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r#")
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_arguments "${_arguments_options[@]}" $common \
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'1: :_just_commands' \
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'*: :->args' \
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&& ret=0
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case $state in
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args)
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curcontext="${curcontext%:*}-${words[2]}:"
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local lastarg=${words[${#words}]}
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local recipe
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local cmds; cmds=(
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${(s: :)$(_call_program commands just --summary)}
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)
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# Find first recipe name
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for ((i = 2; i < $#words; i++ )) do
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if [[ ${cmds[(I)${words[i]}]} -gt 0 ]]; then
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recipe=${words[i]}
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break
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fi
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done
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if [[ $lastarg = */* ]]; then
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# Arguments contain slash would be recognised as a file
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_arguments -s -S $common '*:: :_files'
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elif [[ $lastarg = *=* ]]; then
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# Arguments contain equal would be recognised as a variable
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_message "value"
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elif [[ $recipe ]]; then
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# Show usage message
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_message "`just --show $recipe`"
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# Or complete with other commands
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#_arguments -s -S $common '*:: :_just_commands'
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else
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_arguments -s -S $common '*:: :_just_commands'
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fi
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;;
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esac
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return ret
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"#,
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),
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(
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" local commands; commands=()",
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r#" [[ $PREFIX = -* ]] && return 1
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integer ret=1
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local variables; variables=(
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${(s: :)$(_call_program commands just --variables)}
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)
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local commands; commands=(
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${${${(M)"${(f)$(_call_program commands just --list)}":# *}/ ##/}/ ##/:Args: }
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)
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"#,
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),
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(
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r#" _describe -t commands 'just commands' commands "$@""#,
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r#" if compset -P '*='; then
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case "${${words[-1]%=*}#*=}" in
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*) _message 'value' && ret=0 ;;
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esac
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else
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_describe -t variables 'variables' variables -qS "=" && ret=0
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_describe -t commands 'just commands' commands "$@"
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fi
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"#,
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),
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(
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r#"_just "$@""#,
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r#"(( $+functions[_just_variables] )) ||
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_just_variables() {
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[[ $PREFIX = -* ]] && return 1
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integer ret=1
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local variables; variables=(
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${(s: :)$(_call_program commands just --variables)}
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)
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if compset -P '*='; then
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case "${${words[-1]%=*}#*=}" in
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*) _message 'value' && ret=0 ;;
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esac
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else
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_describe -t variables 'variables' variables && ret=0
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fi
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return ret
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}
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_just "$@""#,
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),
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];
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const POWERSHELL_COMPLETION_REPLACEMENTS: &[(&str, &str)] = &[(
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r#"$completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
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Sort-Object -Property ListItemText"#,
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r#"function Get-JustFileRecipes([string[]]$CommandElements) {
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$justFileIndex = $commandElements.IndexOf("--justfile");
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if ($justFileIndex -ne -1 -and $justFileIndex + 1 -le $commandElements.Length) {
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$justFileLocation = $commandElements[$justFileIndex + 1]
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}
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$justArgs = @("--summary")
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if (Test-Path $justFileLocation) {
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$justArgs += @("--justfile", $justFileLocation)
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}
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$recipes = $(just @justArgs) -split ' '
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return $recipes | ForEach-Object { [CompletionResult]::new($_) }
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}
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$elementValues = $commandElements | Select-Object -ExpandProperty Value
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$recipes = Get-JustFileRecipes -CommandElements $elementValues
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$completions += $recipes
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$completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
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Sort-Object -Property ListItemText"#,
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)];
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const BASH_COMPLETION_REPLACEMENTS: &[(&str, &str)] = &[
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(
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r#" if [[ ${cur} == -* || ${COMP_CWORD} -eq 1 ]] ; then
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COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
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return 0
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fi"#,
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r#" if [[ ${cur} == -* ]] ; then
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COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
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return 0
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elif [[ ${COMP_CWORD} -eq 1 ]]; then
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local recipes=$(just --summary 2> /dev/null)
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if echo "${cur}" | \grep -qF '/'; then
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local path_prefix=$(echo "${cur}" | sed 's/[/][^/]*$/\//')
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local recipes=$(just --summary 2> /dev/null -- "${path_prefix}")
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local recipes=$(printf "${path_prefix}%s\t" $recipes)
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fi
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if [[ $? -eq 0 ]]; then
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COMPREPLY=( $(compgen -W "${recipes}" -- "${cur}") )
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return 0
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fi
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fi"#,
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),
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(
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r"local i cur prev opts cmd",
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r"local i cur prev words cword opts cmd",
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),
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(
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r#" cur="${COMP_WORDS[COMP_CWORD]}"
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prev="${COMP_WORDS[COMP_CWORD-1]}""#,
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r#"
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# Modules use "::" as the separator, which is considered a wordbreak character in bash.
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# The _get_comp_words_by_ref function is a hack to allow for exceptions to this rule without
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# modifying the global COMP_WORDBREAKS environment variable.
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if type _get_comp_words_by_ref &>/dev/null; then
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_get_comp_words_by_ref -n : cur prev words cword
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else
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cur="${COMP_WORDS[COMP_CWORD]}"
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prev="${COMP_WORDS[COMP_CWORD-1]}"
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words=$COMP_WORDS
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cword=$COMP_CWORD
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fi
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"#,
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),
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(r"for i in ${COMP_WORDS[@]}", r"for i in ${words[@]}"),
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(
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r"elif [[ ${COMP_CWORD} -eq 1 ]]; then",
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r"elif [[ ${cword} -eq 1 ]]; then",
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),
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(
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r#"COMPREPLY=( $(compgen -W "${recipes}" -- "${cur}") )"#,
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r#"COMPREPLY=( $(compgen -W "${recipes}" -- "${cur}") )
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if type __ltrim_colon_completions &>/dev/null; then
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__ltrim_colon_completions "$cur"
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fi"#,
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),
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];
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