Swithed from IlanCosman to plttn version of tide

.config/fish/completions/lxc-attach.fish

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