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v2fly/commands/all/merge.go

102 lines
2.3 KiB
Go

package all
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/v2fly/v2ray-core/v4/commands/base"
"github.com/v2fly/v2ray-core/v4/infra/conf/merge"
)
var cmdMerge = &base.Command{
UsageLine: "{{.Exec}} merge [-r] [c1.json] [url] [dir1] ...",
Short: "Merge json files into one",
Long: `
Merge JSON files into one.
Arguments:
-r
Load confdir recursively.
Examples:
{{.Exec}} {{.LongName}} c1.json c2.json
{{.Exec}} {{.LongName}} c1.json https://url.to/c2.json
{{.Exec}} {{.LongName}} "path/to/json_dir"
`,
}
func init() {
cmdMerge.Run = executeMerge
}
var mergeReadDirRecursively = cmdMerge.Flag.Bool("r", false, "")
func executeMerge(cmd *base.Command, args []string) {
unnamed := cmd.Flag.Args()
files := resolveFolderToFiles(unnamed, *mergeReadDirRecursively)
if len(files) == 0 {
base.Fatalf("empty config list")
}
data, err := merge.FilesToJSON(files)
if err != nil {
base.Fatalf(err.Error())
}
if _, err := os.Stdout.Write(data); err != nil {
base.Fatalf(err.Error())
}
}
// resolveFolderToFiles expands folder path (if any and it exists) to file paths.
// Any other paths, like file, even URL, it returns them as is.
func resolveFolderToFiles(paths []string, recursively bool) []string {
dirReader := readConfDir
if recursively {
dirReader = readConfDirRecursively
}
files := make([]string, 0)
for _, p := range paths {
i, err := os.Stat(p)
if err == nil && i.IsDir() {
files = append(files, dirReader(p)...)
continue
}
files = append(files, p)
}
return files
}
func readConfDir(dirPath string) []string {
confs, err := ioutil.ReadDir(dirPath)
if err != nil {
base.Fatalf("failed to read dir %s: %s", dirPath, err)
}
files := make([]string, 0)
for _, f := range confs {
ext := filepath.Ext(f.Name())
if ext == ".json" || ext == ".jsonc" {
files = append(files, filepath.Join(dirPath, f.Name()))
}
}
return files
}
// getFolderFiles get files in the folder and it's children
func readConfDirRecursively(dirPath string) []string {
files := make([]string, 0)
err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
ext := filepath.Ext(path)
if ext == ".json" || ext == ".jsonc" {
files = append(files, path)
}
return nil
})
if err != nil {
base.Fatalf("failed to read dir %s: %s", dirPath, err)
}
return files
}