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83 lines
2.4 KiB
83 lines
2.4 KiB
/*
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Copyright © 2020-2023 The k3d Author(s)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package util
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"strings"
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k3d "github.com/k3d-io/k3d/v5/pkg/types"
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)
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// HandlePlugin takes care of finding and executing a plugin based on the longest prefix
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func HandlePlugin(ctx context.Context, args []string) (bool, error) {
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argsPrefix := []string{}
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for _, arg := range args {
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if strings.HasPrefix(arg, "-") {
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continue // drop flags
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}
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argsPrefix = append(argsPrefix, strings.ReplaceAll(arg, "-", "_")) // plugin executables assumed to have underscores
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}
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execPath := ""
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for len(argsPrefix) > 0 {
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path, found := FindPlugin(strings.Join(argsPrefix, "-"))
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if !found {
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argsPrefix = argsPrefix[:len(argsPrefix)-1] // drop last element
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continue
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}
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execPath = path
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break
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}
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if execPath == "" {
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return false, nil
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}
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return true, ExecPlugin(ctx, execPath, args[len(argsPrefix):], os.Environ())
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}
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// FindPlugin tries to find the plugin executable on the filesystem
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func FindPlugin(name string) (string, bool) {
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path, err := exec.LookPath(fmt.Sprintf("%s-%s", k3d.DefaultObjectNamePrefix, name))
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if err == nil && len(path) > 0 {
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return path, true
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}
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return "", false
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}
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// ExecPlugin executes a found plugin
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func ExecPlugin(ctx context.Context, path string, args []string, env []string) error {
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cmd := exec.CommandContext(ctx, path, args...)
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cmd.Env = env
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cmd.Stderr = os.Stderr
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cmd.Stdout = os.Stdout
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cmd.Stdin = os.Stdin
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return cmd.Run()
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}
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