GoFrame gfile-目录扫描

目录扫描

ScanDir

• 说明：扫描指定目录，可扫描文件或目录，支持递归扫描。
• 格式:

func ScanDir(path string, pattern string, recursive ...bool) ([]string, error)

• 示例：

func ExampleScanDir() {
 // init
 var (
  fileName = "gflie_example.txt"
  tempDir  = gfile.TempDir("gfile_example_scan_dir")
  tempFile = gfile.Join(tempDir, fileName)

  tempSubDir  = gfile.Join(tempDir, "sub_dir")
  tempSubFile = gfile.Join(tempSubDir, fileName)
 )

 // write contents
 gfile.PutContents(tempFile, "goframe example content")
 gfile.PutContents(tempSubFile, "goframe example content")

 // scans directory recursively
 list, _ := gfile.ScanDir(tempDir, "*", true)
 for _, v := range list {
  fmt.Println(gfile.Basename(v))
 }

 // Output:
 // gflie_example.txt
 // sub_dir
 // gflie_example.txt
}

ScanDirFile

• 说明：扫描指定目录的文件，支持递归扫描
• 格式:

func ScanDirFile(path string, pattern string, recursive ...bool) ([]string, error)

• 示例：

func ExampleScanDirFile() {
 // init
 var (
  fileName = "gflie_example.txt"
  tempDir  = gfile.TempDir("gfile_example_scan_dir_file")
  tempFile = gfile.Join(tempDir, fileName)

  tempSubDir  = gfile.Join(tempDir, "sub_dir")
  tempSubFile = gfile.Join(tempSubDir, fileName)
 )

 // write contents
 gfile.PutContents(tempFile, "goframe example content")
 gfile.PutContents(tempSubFile, "goframe example content")

 // scans directory recursively exclusive of directories
 list, _ := gfile.ScanDirFile(tempDir, "*.txt", true)
 for _, v := range list {
  fmt.Println(gfile.Basename(v))
 }

 // Output:
 // gflie_example.txt
 // gflie_example.txt
}

ScanDirFunc

• 说明：扫描指定目录（自定义过滤方法），可扫描文件或目录，支持递归扫描
• 格式:

func ScanDirFunc(path string, pattern string, recursive bool, handler func(path string) string) ([]string, error)

• 示例：

func ExampleScanDirFunc() {
 // init
 var (
  fileName = "gflie_example.txt"
  tempDir  = gfile.TempDir("gfile_example_scan_dir_func")
  tempFile = gfile.Join(tempDir, fileName)

  tempSubDir  = gfile.Join(tempDir, "sub_dir")
  tempSubFile = gfile.Join(tempSubDir, fileName)
 )

 // write contents
 gfile.PutContents(tempFile, "goframe example content")
 gfile.PutContents(tempSubFile, "goframe example content")

 // scans directory recursively
 list, _ := gfile.ScanDirFunc(tempDir, "*", true, func(path string) string {
  // ignores some files
  if gfile.Basename(path) == "gflie_example.txt" {
   return ""
  }
  return path
 })
 for _, v := range list {
  fmt.Println(gfile.Basename(v))
 }

 // Output:
 // sub_dir
}

ScanDirFileFunc

• 说明：扫描指定目录的文件（自定义过滤方法），支持递归扫描。
• 格式:

func ScanDirFileFunc(path string, pattern string, recursive bool, handler func(path string) string) ([]string, error) 

• 示例：

func ExampleScanDirFileFunc() {
 // init
 var (
  fileName = "gflie_example.txt"
  tempDir  = gfile.TempDir("gfile_example_scan_dir_file_func")
  tempFile = gfile.Join(tempDir, fileName)

  fileName1 = "gflie_example_ignores.txt"
  tempFile1 = gfile.Join(tempDir, fileName1)

  tempSubDir  = gfile.Join(tempDir, "sub_dir")
  tempSubFile = gfile.Join(tempSubDir, fileName)
 )

 // write contents
 gfile.PutContents(tempFile, "goframe example content")
 gfile.PutContents(tempFile1, "goframe example content")
 gfile.PutContents(tempSubFile, "goframe example content")

 // scans directory recursively exclusive of directories
 list, _ := gfile.ScanDirFileFunc(tempDir, "*.txt", true, func(path string) string {
  // ignores some files
  if gfile.Basename(path) == "gflie_example_ignores.txt" {
   return ""
  }
  return path
 })
 for _, v := range list {
  fmt.Println(gfile.Basename(v))
 }

 // Output:
 // gflie_example.txt
 // gflie_example.txt
}