34 lines
1.4 KiB
Bash
34 lines
1.4 KiB
Bash
# Invoke tab-completion script to be sourced with the Z shell.
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# Known to work on zsh 5.0.x, probably works on later 4.x releases as well (as
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# it uses the older compctl completion system).
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_complete_{binary}() {{
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# `words` contains the entire command string up til now (including
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# program name).
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#
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# We hand it to Invoke so it can figure out the current context: spit back
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# core options, task names, the current task's options, or some combo.
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#
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# Before doing so, we attempt to tease out any collection flag+arg so we
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# can ensure it is applied correctly.
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collection_arg=''
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if [[ "${{words}}" =~ "(-c|--collection) [^ ]+" ]]; then
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collection_arg=$MATCH
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fi
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# `reply` is the array of valid completions handed back to `compctl`.
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# Use ${{=...}} to force whitespace splitting in expansion of
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# $collection_arg
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reply=( $({binary} ${{=collection_arg}} --complete -- ${{words}}) )
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}}
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# Tell shell builtin to use the above for completing our given binary name(s).
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# * -K: use given function name to generate completions.
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# * +: specifies 'alternative' completion, where options after the '+' are only
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# used if the completion from the options before the '+' result in no matches.
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# * -f: when function generates no results, use filenames.
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# * positional args: program names to complete for.
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compctl -K _complete_{binary} + -f {spaced_names}
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# vim: set ft=sh :
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