/
filesystem_git.go
80 lines (70 loc) · 1.96 KB
/
filesystem_git.go
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// Copyright 2022 Jeremy Edwards
//
// 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.
//go:build !aix
// +build !aix
package gowebserver
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
)
func newGitFS(filePath string) (*localFS, error) {
if !isSupportedGit(filePath) {
return nil, fmt.Errorf("%s is not a valid git repository", filePath)
}
tmpDir, cleanup, err := createTempDirectory()
if err != nil {
cleanup()
return nil, fmt.Errorf("cannot create temp directory, %w", err)
}
for _, opts := range cloneOptions(filePath) {
if _, err = git.PlainClone(tmpDir, false, opts); err == nil {
break
}
}
if err != nil {
cleanup()
return nil, fmt.Errorf("could not clone %s, %w", filePath, err)
}
tryDeleteDirectory(filepath.Join(tmpDir, ".git"))
tryDeleteFile(filepath.Join(tmpDir, ".gitignore"))
tryDeleteFile(filepath.Join(tmpDir, ".gitmodules"))
return newLocalFS(tmpDir, func() error {
cleanup()
return nil
})
}
func isSupportedGit(filePath string) bool {
return strings.HasSuffix(strings.ToLower(filePath), ".git")
}
func cloneOptions(filePath string) []*git.CloneOptions {
return []*git.CloneOptions{
{
URL: filePath,
Progress: os.Stdout,
Depth: 1,
SingleBranch: true,
},
{
URL: filePath,
Progress: os.Stdout,
Depth: 1,
SingleBranch: true,
ReferenceName: plumbing.NewBranchReferenceName("main"),
},
}
}