109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
|
|
|
|
package completion
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
"kitty/tools/cli"
|
|
"kitty/tools/tty"
|
|
"kitty/tools/utils"
|
|
)
|
|
|
|
func debug(args ...interface{}) {
|
|
tty.DebugPrintln(args...)
|
|
}
|
|
|
|
func debugf(format string, args ...interface{}) {
|
|
debug(fmt.Sprintf(format, args...))
|
|
}
|
|
|
|
func json_input_parser(data []byte, shell_state map[string]string) ([][]string, error) {
|
|
ans := make([][]string, 0, 32)
|
|
err := json.Unmarshal(data, &ans)
|
|
return ans, err
|
|
}
|
|
|
|
func json_output_serializer(completions []*Completions, shell_state map[string]string) ([]byte, error) {
|
|
return json.Marshal(completions)
|
|
}
|
|
|
|
type parser_func func(data []byte, shell_state map[string]string) ([][]string, error)
|
|
type serializer_func func(completions []*Completions, shell_state map[string]string) ([]byte, error)
|
|
|
|
var input_parsers = make(map[string]parser_func, 4)
|
|
var output_serializers = make(map[string]serializer_func, 4)
|
|
var init_completions = make(map[string]func(*Completions), 4)
|
|
|
|
func init() {
|
|
input_parsers["json"] = json_input_parser
|
|
output_serializers["json"] = json_output_serializer
|
|
}
|
|
|
|
var registered_exes = make(map[string]func(root *Command))
|
|
|
|
func main(args []string) error {
|
|
output_type := "json"
|
|
if len(args) > 0 {
|
|
output_type = args[0]
|
|
args = args[1:]
|
|
}
|
|
n := len(args)
|
|
if n < 1 {
|
|
n = 1
|
|
}
|
|
shell_state := make(map[string]string, n)
|
|
for _, arg := range args {
|
|
k, v, found := utils.Cut(arg, "=")
|
|
if !found {
|
|
return fmt.Errorf("Invalid shell state specification: %s", arg)
|
|
}
|
|
shell_state[k] = v
|
|
}
|
|
input_parser := input_parsers[output_type]
|
|
output_serializer := output_serializers[output_type]
|
|
if input_parser == nil || output_serializer == nil {
|
|
return fmt.Errorf("Unknown output type: %s", output_type)
|
|
}
|
|
data, err := io.ReadAll(os.Stdin)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
all_argv, err := input_parser(data, shell_state)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
var root = Command{Options: make([]*Option, 0), Groups: make([]*CommandGroup, 0, 8)}
|
|
for _, re := range registered_exes {
|
|
re(&root)
|
|
}
|
|
|
|
all_completions := make([]*Completions, 0, 1)
|
|
for _, argv := range all_argv {
|
|
all_completions = append(all_completions, root.GetCompletions(argv, init_completions[output_type]))
|
|
}
|
|
output, err := output_serializer(all_completions, shell_state)
|
|
if err == nil {
|
|
_, err = os.Stdout.Write(output)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func EntryPoint(tool_root *cobra.Command) *cobra.Command {
|
|
complete_command := cli.CreateCommand(&cobra.Command{
|
|
Use: "__complete__ output_type [shell state...]",
|
|
Short: "Generate completions for kitty commands",
|
|
Long: "Generate completion candidates for kitty commands. The command line is read from STDIN. output_type can be one of the supported shells or 'json' for JSON output.",
|
|
Hidden: true,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return main(args)
|
|
},
|
|
})
|
|
return complete_command
|
|
}
|