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package askcli
import (
"strings"
)
type fishCompletionItem struct {
name string
description string
}
var askDepCompletionItems = []fishCompletionItem{
{name: "add", description: "Add a dependency"},
{name: "rm", description: "Remove a dependency"},
{name: "list", description: "List dependencies"},
}
func fishSingleSelectorCompletionContext(positional []string) bool {
if len(positional) != 1 {
return false
}
for _, command := range commandRegistry.singleSelectorNames() {
if positional[0] == command {
return true
}
}
return false
}
func fishDepSelectorCompletionContext(positional []string) bool {
if len(positional) < 2 || positional[0] != "dep" {
return false
}
switch positional[1] {
case "add", "rm":
return len(positional) == 2 || len(positional) == 3
case "list":
return len(positional) == 2
default:
return false
}
}
func fishAddDependencyModifierCompletionContext(positional []string, current string) bool {
if len(positional) == 0 || positional[0] != "add" {
return false
}
current = strings.TrimSpace(current)
return current == "depends" || strings.HasPrefix(current, "depends:")
}
// FishCompletion returns the default Fish completion script for the ask CLI.
func FishCompletion() string {
return FishCompletionFor("ask")
}
// FishCompletionFor returns a Fish completion script that points to the provided binary path.
func FishCompletionFor(binaryPath string) string {
var b strings.Builder
writeFishPreamble(&b)
writeFishContextFunctions(&b)
writeFishTaskSelectorFunction(&b, binaryPath)
writeFishAddDependencyModifierFunction(&b)
b.WriteString("complete -c ask -f\n")
b.WriteString("complete -c ask -s j -l json -d 'Emit JSON output'\n")
for _, entry := range commandRegistry.rootCompletionEntries() {
item := fishCompletionItem{name: entry.name, description: entry.description}
writeFishCompletionLine(&b, "__ask_needs_root_completion", item)
}
for _, item := range askDepCompletionItems {
writeFishCompletionLine(&b, "__ask_in_dep_context", item)
}
writeFishUUIDCompletionLine(&b, "__ask_in_uuid_context", "Task selector")
writeFishUUIDCompletionLine(&b, "__ask_in_dep_uuid_context", "Task selector")
writeFishFunctionCompletionLine(&b, "__ask_in_add_dep_modifier_context", "__ask_add_dependency_modifiers", "Task dependency")
return b.String()
}
func writeFishPreamble(b *strings.Builder) {
b.WriteString("# Fish completion for ask.\n")
b.WriteString("# Source with: ask fish | source\n\n")
}
func writeFishContextFunctions(b *strings.Builder) {
writeFishNeedsRootCompletionFunction(b)
writeFishDepContextFunction(b)
writeFishUUIDContextFunction(b)
writeFishDepUUIDContextFunction(b)
writeFishAddDependencyModifierContextFunction(b)
}
func writeFishNeedsRootCompletionFunction(b *strings.Builder) {
b.WriteString("function __ask_needs_root_completion\n")
b.WriteString(" set -l tokens (commandline -opc)\n")
b.WriteString(" if test (count $tokens) -le 1\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" for token in $tokens[2..-1]\n")
b.WriteString(" if not string match -qr '^-' -- $token\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" end\n")
b.WriteString(" return 0\n")
b.WriteString("end\n\n")
}
func writeFishDepContextFunction(b *strings.Builder) {
b.WriteString("function __ask_in_dep_context\n")
b.WriteString(" set -l tokens (commandline -opc)\n")
b.WriteString(" if test (count $tokens) -lt 2\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" set -l seen_dep 0\n")
b.WriteString(" for token in $tokens[2..-1]\n")
b.WriteString(" if string match -qr '^-' -- $token\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" if test $seen_dep -eq 0\n")
b.WriteString(" if test $token = dep\n")
b.WriteString(" set seen_dep 1\n")
b.WriteString(" else\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" else\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" end\n")
b.WriteString(" test $seen_dep -eq 1\n")
b.WriteString("end\n\n")
}
func writeFishUUIDContextFunction(b *strings.Builder) {
b.WriteString("function __ask_in_uuid_context\n")
b.WriteString(" set -l tokens (commandline -opc)\n")
b.WriteString(" set -l positional\n")
b.WriteString(" for token in $tokens[2..-1]\n")
b.WriteString(" if string match -qr '^-' -- $token\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" set -a positional $token\n")
b.WriteString(" end\n")
b.WriteString(" if test (count $positional) -eq 0\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" if test (count $positional) -ne 1\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" switch $positional[1]\n")
b.WriteString(" case ")
b.WriteString(strings.Join(commandRegistry.singleSelectorNames(), " "))
b.WriteString("\n")
b.WriteString(" return 0\n")
b.WriteString(" case '*'\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" return 1\n")
b.WriteString("end\n\n")
}
func writeFishDepUUIDContextFunction(b *strings.Builder) {
b.WriteString("function __ask_in_dep_uuid_context\n")
b.WriteString(" set -l tokens (commandline -opc)\n")
b.WriteString(" set -l positional\n")
b.WriteString(" for token in $tokens[2..-1]\n")
b.WriteString(" if string match -qr '^-' -- $token\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" set -a positional $token\n")
b.WriteString(" end\n")
b.WriteString(" if test (count $positional) -lt 2\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" if test $positional[1] != dep\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" switch $positional[2]\n")
b.WriteString(" case add rm\n")
b.WriteString(" if test (count $positional) -eq 2 -o (count $positional) -eq 3\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" case list\n")
b.WriteString(" if test (count $positional) -eq 2\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" case '*'\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" return 1\n")
b.WriteString("end\n\n")
}
func writeFishAddDependencyModifierContextFunction(b *strings.Builder) {
b.WriteString("function __ask_in_add_dep_modifier_context\n")
b.WriteString(" set -l tokens (commandline -opc)\n")
b.WriteString(" set -l positional\n")
b.WriteString(" for token in $tokens[2..-1]\n")
b.WriteString(" if string match -qr '^-' -- $token\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" set -a positional $token\n")
b.WriteString(" end\n")
b.WriteString(" if test (count $positional) -lt 1\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" if test $positional[1] != add\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" set -l current (commandline -ct)\n")
b.WriteString(" if test $current = depends\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" string match -qr '^depends:' -- $current\n")
b.WriteString("end\n\n")
}
func writeFishTaskSelectorFunction(b *strings.Builder, binaryPath string) {
b.WriteString("function __ask_task_selectors\n")
b.WriteString(" set -l ask_bin ")
b.WriteString(quoteFishString(binaryPath))
b.WriteString("\n")
b.WriteString(" set -l now (date +%s)\n")
b.WriteString(" if set -q __ask_task_selector_cache_until; and test $__ask_task_selector_cache_until -ge $now\n")
b.WriteString(" printf '%s\\n' $__ask_task_selector_cache\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" set -l selectors (command $ask_bin complete-uuids 2>/dev/null)\n")
b.WriteString(" if test $status -ne 0\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" set -g __ask_task_selector_cache $selectors\n")
b.WriteString(" set -g __ask_task_selector_cache_until (math $now + 2)\n")
b.WriteString(" printf '%s\\n' $selectors\n")
b.WriteString("end\n\n")
}
func writeFishAddDependencyModifierFunction(b *strings.Builder) {
b.WriteString("function __ask_add_dependency_modifiers\n")
b.WriteString(" set -l current (commandline -ct)\n")
b.WriteString(" if test $current = depends\n")
b.WriteString(" printf '%s\\n' 'depends:'\n")
b.WriteString(" return 0\n")
b.WriteString(" end\n")
b.WriteString(" if not string match -qr '^depends:' -- $current\n")
b.WriteString(" return 1\n")
b.WriteString(" end\n")
b.WriteString(" set -l raw (string sub -s 9 -- $current)\n")
b.WriteString(" set -l partial $raw\n")
b.WriteString(" set -l chosen\n")
b.WriteString(" if string match -q '*,*' -- $raw\n")
b.WriteString(" set -l pieces (string split ',' -- $raw)\n")
b.WriteString(" set partial $pieces[-1]\n")
b.WriteString(" if test (count $pieces) -gt 1\n")
b.WriteString(" set chosen $pieces[1..-2]\n")
b.WriteString(" end\n")
b.WriteString(" end\n")
b.WriteString(" for selector in (__ask_task_selectors)\n")
b.WriteString(" if contains -- $selector $chosen\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" if not string match -q -- \"$partial*\" $selector\n")
b.WriteString(" continue\n")
b.WriteString(" end\n")
b.WriteString(" if test (count $chosen) -eq 0\n")
b.WriteString(" printf 'depends:%s\\n' $selector\n")
b.WriteString(" else\n")
b.WriteString(" printf 'depends:%s,%s\\n' (string join ',' $chosen) $selector\n")
b.WriteString(" end\n")
b.WriteString(" end\n")
b.WriteString("end\n\n")
}
func writeFishCompletionLine(b *strings.Builder, condition string, item fishCompletionItem) {
b.WriteString("complete -c ask -n '")
b.WriteString(condition)
b.WriteString("' -a '")
b.WriteString(item.name)
b.WriteString("' -d '")
b.WriteString(strings.ReplaceAll(item.description, "'", "\\'"))
b.WriteString("'\n")
}
func writeFishUUIDCompletionLine(b *strings.Builder, condition, description string) {
b.WriteString("complete -c ask -n '")
b.WriteString(condition)
b.WriteString("' -a '(__ask_task_selectors)' -d '")
b.WriteString(strings.ReplaceAll(description, "'", "\\'"))
b.WriteString("'\n")
}
func writeFishFunctionCompletionLine(b *strings.Builder, condition, functionName, description string) {
b.WriteString("complete -c ask -n '")
b.WriteString(condition)
b.WriteString("' -a '(")
b.WriteString(functionName)
b.WriteString(")' -d '")
b.WriteString(strings.ReplaceAll(description, "'", "\\'"))
b.WriteString("'\n")
}
func quoteFishString(value string) string {
replacer := strings.NewReplacer(
"\\", "\\\\",
"\"", "\\\"",
"$", "\\$",
)
return `"` + replacer.Replace(value) + `"`
}
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