92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
/*
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* Copyright (c) 2025 The GoPlus Authors (goplus.org). All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cppkg
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import (
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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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)
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var (
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// ErrNotFound is the error resulting if a path search failed to find
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// an executable file.
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ErrNotFound = exec.ErrNotFound
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)
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// Tool represents a tool that can be executed.
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type Tool struct {
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cmd string
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installs [][]string
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}
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// NewTool creates a new Tool instance with the specified tool and install commands.
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func NewTool(cmd string, installs []string) *Tool {
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inst := make([][]string, len(installs))
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for i, install := range installs {
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inst[i] = strings.Split(install, " ")
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}
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return &Tool{
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cmd: cmd,
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installs: inst,
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}
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}
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// New creates a new command with the specified arguments.
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func (p *Tool) New(quietInstall bool, args ...string) (cmd *exec.Cmd, err error) {
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app, err := p.Get(quietInstall)
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if err != nil {
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return
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}
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return exec.Command(app, args...), nil
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}
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// Get retrieves the path of the command.
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// If the command is not found, it attempts to install it using the specified
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// install commands.
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func (p *Tool) Get(quietInstall bool) (app string, err error) {
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app, err = exec.LookPath(p.cmd)
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if err == nil {
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return
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}
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amPath, install, err := p.getAppManager()
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if err != nil {
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return
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}
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c := exec.Command(amPath, install[1:]...)
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c.Stdout = os.Stdout
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c.Stderr = os.Stderr
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if err = c.Run(); err != nil {
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return
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}
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return exec.LookPath(p.cmd)
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}
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func (p *Tool) getAppManager() (amPath string, install []string, err error) {
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var notFoundMgs []string
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for _, install = range p.installs {
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am := install[0]
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if amPath, err = exec.LookPath(am); err == nil {
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return
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}
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notFoundMgs = append(notFoundMgs, am)
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}
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err = fmt.Errorf("app managers not found: %s: %w", strings.Join(notFoundMgs, ", "), ErrNotFound)
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return
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}
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