compose/metrics/generatecommands/main.go

107 lines
2.7 KiB
Go

/*
Copyright 2020 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"fmt"
"os/exec"
"strings"
"github.com/docker/compose-cli/utils"
)
var managementCommands = []string{"ecs", "scan"}
var commands = []string{}
func main() {
fmt.Println("Walking through docker help to list commands...")
getCommands()
getCommands("compose")
fmt.Printf(`
var managementCommands = []string{
"%s",
}
var commands = []string{
"%s",
}
`, strings.Join(managementCommands, "\", \n\t\""), strings.Join(commands, "\", \n\t\""))
}
const (
mgtCommandsSection = "Management Commands:"
commandsSection = "Commands:"
aliasesSection = "Aliases:"
)
func getCommands(execCommands ...string) {
withHelp := append(execCommands, "--help")
cmd := exec.Command("docker", withHelp...)
output, err := cmd.Output()
if err != nil {
return
}
text := string(output)
lines := strings.Split(text, "\n")
section := ""
for _, line := range lines {
trimmedLine := strings.TrimSpace(line)
if strings.HasPrefix(trimmedLine, mgtCommandsSection) {
section = mgtCommandsSection
continue
}
if strings.HasPrefix(trimmedLine, commandsSection) || strings.HasPrefix(trimmedLine, "Available Commands:") {
section = commandsSection
if len(execCommands) > 0 {
command := execCommands[len(execCommands)-1]
managementCommands = append(managementCommands, command)
}
continue
}
if strings.HasPrefix(trimmedLine, aliasesSection) {
section = aliasesSection
continue
}
if trimmedLine == "" {
section = ""
continue
}
tokens := strings.Split(trimmedLine, " ")
command := strings.Replace(tokens[0], "*", "", 1)
switch section {
case mgtCommandsSection:
getCommands(append(execCommands, command)...)
case commandsSection:
if !utils.StringContains(commands, command) {
commands = append(commands, command)
}
getCommands(append(execCommands, command)...)
case aliasesSection:
aliases := strings.Split(trimmedLine, ",")
for _, alias := range aliases {
trimmedAlias := strings.TrimSpace(alias)
if !utils.StringContains(commands, trimmedAlias) {
commands = append(commands, trimmedAlias)
}
}
}
}
}