/
main.go
88 lines (78 loc) · 2.35 KB
/
main.go
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// Copyright © 2018 Amit Saha <amitsaha.in@gmail.com>
//
// 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"
"strings"
"github.com/amitsaha/yawsi/cmd"
"github.com/spf13/pflag"
)
// Function copied from github.com/spf13/cobra
func nonCompletableFlag(flag *pflag.Flag) bool {
return flag.Hidden || len(flag.Deprecated) > 0
}
func main() {
// handle bash autocomplete
if len(os.Getenv("COMP_LINE")) != 0 {
if len(os.Getenv("COMP_DEBUG")) != 0 {
fmt.Printf("%#v\n", os.Getenv("COMP_LINE"))
}
compLine := strings.Split(os.Getenv("COMP_LINE"), " ")
// we only handle auto complete, if we are the command
// being invoked
if compLine[0] == cmd.RootCmd.Name() {
var cmdArgs []string
if len(compLine) > 1 {
cmdArgs = compLine[1:]
} else {
cmdArgs = compLine[0:]
}
c, _, _ := cmd.RootCmd.Find(cmdArgs)
suggestions := c.SuggestionsFor(cmdArgs[len(cmdArgs)-1])
for _, s := range suggestions {
fmt.Printf("%s\n", s)
}
localNonPersistentFlags := c.LocalNonPersistentFlags()
c.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
return
}
if strings.HasPrefix(fmt.Sprintf("--%s", flag.Name), cmdArgs[len(cmdArgs)-1]) {
fmt.Printf("--%s\n", flag.Name)
}
if localNonPersistentFlags.Lookup(flag.Name) != nil {
if strings.HasPrefix(fmt.Sprintf("--%s", flag.Name), cmdArgs[len(cmdArgs)-1]) {
fmt.Printf("--%s\n", flag.Name)
}
}
})
c.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
return
}
if strings.HasPrefix(flag.Name, cmdArgs[len(cmdArgs)-1]) {
fmt.Printf("--%s\n", flag.Name)
}
if len(flag.Shorthand) > 0 {
if strings.HasPrefix(flag.Name, cmdArgs[len(cmdArgs)-1]) {
fmt.Printf("--%s\n", flag.Name)
}
}
})
}
} else {
cmd.Execute()
}
}