33 lines
1.3 KiB
Bash
33 lines
1.3 KiB
Bash
# Invoke tab-completion script to be sourced with Bash shell.
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# Known to work on Bash 3.x, untested on 4.x.
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_complete_{binary}() {{
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local candidates
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# COMP_WORDS contains the entire command string up til now (including
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# program name).
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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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candidates=`{binary} --complete -- ${{COMP_WORDS[*]}}`
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# `compgen -W` takes list of valid options & a partial word & spits back
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# possible matches. Necessary for any partial word completions (vs
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# completions performed when no partial words are present).
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#
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# $2 is the current word or token being tabbed on, either empty string or a
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# partial word, and thus wants to be compgen'd to arrive at some subset of
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# our candidate list which actually matches.
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#
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# COMPREPLY is the list of valid completions handed back to `complete`.
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COMPREPLY=( $(compgen -W "${{candidates}}" -- $2) )
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}}
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# Tell shell builtin to use the above for completing our invocations.
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# * -F: use given function name to generate completions.
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# * -o default: when function generates no results, use filenames.
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# * positional args: program names to complete for.
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complete -F _complete_{binary} -o default {spaced_names}
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# vim: set ft=sh :
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