65 lines
2.8 KiB
Fish
65 lines
2.8 KiB
Fish
complete -c lxc-attach -f
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# function __private_generate_piped_combinations
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# ...
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# end
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function __private_concat_completions -d "Generate completions that are specified as pipe-separated values from stdin source"
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set -l fish_trace on
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type -q awk || return
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set -l token (commandline -ct)
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breakpoint
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# We want to filter out suggestions the user has already entered.
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set -l extant (string trim --chars=' \'"' -- $token | string split '|')
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set -l filter (printf '^%s$\n' (printf '%s\n' $extant | string escape --style=regex) | string join '|')
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# Work around the insanity of trying to read from stdin within a function. Note that we can't place the
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# `read` call in between () to capture the output because that breaks its connection to stdin.
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while read -l line
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echo $line
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end | string match -er '.' | string match -rv -- $filter | string replace -r '^' -- (string replace -rf -- '^(.+),.*$' '$1,' $token; or echo "")
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return
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# Verified compatible with bsd awk and gnu awk
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awk '
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{
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lines[NR-1] = $0
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}
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END {
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n = NR
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for (k = 1; k <= n; k++) {
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generate_permutations(lines, n, k)
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}
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}
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function generate_permutations(arr, total_len, perm_len, prefix, _i, _swap) {
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if (perm_len == 0) {
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print prefix
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return
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}
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for (_i = 0; _i < total_len; _i++) {
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_swap = arr[total_len-1]; arr[total_len-1] = arr[_i]; arr[_i] = _swap
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generate_permutations(arr, total_len-1, perm_len-1, prefix arr[total_len-1] (perm_len == 1 ? "" : "|"))
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arr[_i] = arr[total_len-1]; arr[total_len-1] = _swap
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}
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}
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'
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end
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complete -c lxc-attach -n '__fish_use_subcommand' -s n -l name -r -d 'Name of the container' -a "(lxc-ls --running | string split ' ')"
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# complete -c lxc-attach -n '__fish_use_subcommand' -s e -l elevated-privileges -d 'Use elevated privileges instead of those of the container' -a '(printf "foo\nbar\nbaz" | __private_concat_completions)'
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# Common options
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complete -c lxc-attach -n '__fish_use_subcommand' -s o -l logfile -r -F -d 'Output log to FILE instead of stderr'
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complete -c lxc-attach -n '__fish_use_subcommand' -s l -l logpriority -r -d 'Set log priority to LEVEL' -a 'FATAL ALERT CRIT WARN ERROR NOTICE INFO DEBUG TRACE'
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complete -c lxc-attach -n '__fish_use_subcommand' -s q -l quiet -d "Don't produce any output"
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complete -c lxc-attach -n '__fish_use_subcommand' -s P -l lxcpath -r -F -d 'Use specified container path'
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complete -c lxc-attach -n '__fish_use_subcommand' -l help -d 'Show help information'
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complete -c lxc-attach -n '__fish_use_subcommand' -l usage -d 'Show a short usage message'
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complete -c lxc-attach -n '__fish_use_subcommand' -l version -d 'Print the version number'
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