filesystemV4

FilesystemV4 用法

1. 初始化Dir 和File

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	dir1 := filesystemV4.NewDir(filesystemV4.Rel("."))
   	Printf("init dir by rel: %s\n", dir1.GetFullPath()) // init dir by rel: /Users/yujizhou/development/projects/go/readme
   
   	dir2 := filesystemV4.NewDir(filesystemV4.Abs("/Users/yujizhou/development/projects/go/readme"))
   	Printf("init dir by abs: %s\n", dir2.GetFullPath()) // init dir by abs: /Users/yujizhou/development/projects/go/readme
   
   	file1 := filesystemV4.NewFile(filesystemV4.Rel("./main.go"))
   	Printf("init file by rel: %s\n", file1.GetFullPath()) // init file by rel: /Users/yujizhou/development/projects/go/readme/main.go
   
   	file2 := filesystemV4.NewFile(filesystemV4.Abs("/Users/yujizhou/development/projects/go/readme/main.go"))
   	Printf("init file by abs: %s\n", file2.GetFullPath()) // init file by abs: /Users/yujizhou/development/projects/go/readme/main.go
   }
   

2. 创建文件夹

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	dir1 := filesystemV4.NewDir(filesystemV4.Rel("./a"))
   	Printf("./a is exist before create: %v\n", dir1.GetExist()) // ./a is exist before create: true
   
   	err := dir1.Create(filesystemV4.Flag(0644)).GetError()
   	if err != nil {
   		panic(err)
   	}
   
   	Printf("./a is exist after create: %v\n", dir1.GetExist()) // ./a is exist after create: true
   	Printf("./a fullpath is: %s \n", dir1.GetFullPath())       // ./a fullpath is: /Users/yujizhou/development/projects/go/readme/a
     // 注意：创建文件夹之后，当前对象的目录会自动移动到新文件夹下
   }
   

3. 创建文件，并写入内容

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	dir1 := filesystemV4.NewDir(filesystemV4.Rel("./a"))
   	file1 := filesystemV4.NewFile(filesystemV4.Abs(dir1.GetFullPath(), "1.txt"))
   	Printf("file1 is exist: %v\n", file1.GetExist()) // file1 is exist: false
   
   	err := file1.Create().GetError()
   	if err != nil {
   		panic(err)
   	}
   
   	Printf("file1 is exist: %v\n", file1.GetExist()) // file1 is exist: true
   	// 注意，如果a文件夹不存在，file1.Create()会直接创建这个文件夹
   
   	err = file1.Write([]byte("Is somthing here ...")).GetError()
   	if err != nil {
   		panic(err)
   	}
   
   	fileContent, err := file1.Read()
   	if err != nil {
   		panic(err)
   	}
   
   	Printf("file1 content: %s\n", string(fileContent)) // file1 content: Is somthing here ...
   }
   

4. 复制文件

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	dir1 := filesystemV4.NewDir(filesystemV4.Rel("./a"))
   	file1 := filesystemV4.NewFile(filesystemV4.Abs(dir1.GetFullPath(), "1.txt"))
   	Printf("file1 is exist: %v\n", file1.GetExist()) // file1 is exist: false
   
   	file1.CopyTo(true, "./2.txt") // copy file1 to 2.txt, but file1 is not exist, so 2.txt is not exist
   	file2 := filesystemV4.NewFile(filesystemV4.Rel("./2.txt"))
   	Printf("file1 fullpath: %s\n", file1.GetFullPath()) // 复制不会导致原文件路径发生变化
   	Printf("file2 is exist: %v\n", file2.GetExist())    // file2 is exist: true
   	Printf("file2 fullpath: %s\n", file2.GetFullPath()) // file2 fullpath: /Users/yujizhou/development/projects/go/readme/2.txt
   	// 注意：复制文件时的isRel指的是当前路径的相对路径，不是 file1 的相对路径
   }
   

5. 删除文件

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	dir1 := filesystemV4.NewDir(filesystemV4.Rel("./a"))
   	file1 := filesystemV4.NewFile(filesystemV4.Abs(dir1.GetFullPath(), "1.txt"))
   	file1.CopyTo(true, "./a/2.txt")
   
   	file2 := filesystemV4.NewFile(filesystemV4.Abs(dir1.GetFullPath(), "2.txt"))
   	Printf("file2 is exist: %v\n", file2.GetExist()) // file2 is exist: true
   
   	err := file2.Remove().GetError()
   	if err != nil {
   		panic(err)
   	}
   
   	Printf("file2 is exist: %v\n", file2.GetExist()) // file2 is exist: false
   }
   

6. 复制文件夹

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	// 创建目录：a
   	if dir := filesystemV4.NewDir(filesystemV4.Rel("./a")); dir.GetError() != nil {
   		panic(dir.GetError())
   	}
   
   	// 在目录a下创建5个文件：file-1.txt、file-2.txt、file-3.txt、file-4.txt、file-5.txt，并写入内容：content-1、content-2、content-3、content-4、content-5
   	for idx := range 5 {
   		if file := filesystemV4.NewFile(filesystemV4.Rel(Sprintf("./a/file-%d.txt", idx+1))).Create(); file.GetError() != nil {
   			panic(file.GetError())
   		} else {
   			if err := file.Write(Appendf(nil, "content-%d", idx+1)).GetError(); err != nil {
   				panic(err)
   			}
   		}
   	}
   
   	// 复制目录a到目录b
   	if dir := filesystemV4.NewDir(filesystemV4.Rel("./a")).CopyTo(true, "./b"); dir.GetError() != nil {
   		panic(dir.GetError())
   	}
   
   	// 获取目录b下的所有文件，并打印它们的内容
   	if dir := filesystemV4.NewDir(filesystemV4.Rel("./b")); dir.GetError() != nil {
   		panic(dir.GetError())
   	} else {
   		for _, file := range dir.LS().GetFiles() {
   			Printf("file in new dir: %s\n", file.GetFullPath())
   		}
   
   		// 打印结果：
   		// file in new dir: /Users/yujizhou/development/projects/go/readme/b/file-1.txt
   		// file in new dir: /Users/yujizhou/development/projects/go/readme/b/file-2.txt
   		// file in new dir: /Users/yujizhou/development/projects/go/readme/b/file-3.txt
   		// file in new dir: /Users/yujizhou/development/projects/go/readme/b/file-4.txt
   		// file in new dir: /Users/yujizhou/development/projects/go/readme/b/file-5.txt
   	}
   }
   

7. 打印文件夹下所以内容

   package main
   
   import (
   	. "fmt"
   
   	"github.com/aid297/aid/filesystem/filesystemV4"
   )
   
   func main() {
   	// 创建目录：a
   	if dir := filesystemV4.NewDir(filesystemV4.Rel("./a")); dir.GetError() != nil {
   		panic(dir.GetError())
   	}
   
   	// 在目录a下创建5个文件：file-1.txt、file-2.txt、file-3.txt、file-4.txt、file-5.txt，并写入内容：content-1、content-2、content-3、content-4、content-5
   	for idx := range 5 {
   		if file := filesystemV4.NewFile(filesystemV4.Rel(Sprintf("./a/file-%d.txt", idx+1))).Create(); file.GetError() != nil {
   			panic(file.GetError())
   		} else {
   			if err := file.Write(Appendf(nil, "content-a-%d", idx+1)).GetError(); err != nil {
   				panic(err)
   			}
   		}
   	}
   
   	// 在目录a下创建一个子目录：b，并创建文件
   	if dir := filesystemV4.NewDir(filesystemV4.Rel("./a/b")).Create(); dir.GetError() != nil {
   		panic(dir.GetError())
   	}
   	for idx := range 5 {
   		if file := filesystemV4.NewFile(filesystemV4.Rel(Sprintf("./a/b/file-%d.txt", idx+1))).Create(); file.GetError() != nil {
   			panic(file.GetError())
   		} else {
   			if err := file.Write(Appendf(nil, "content-b-%d", idx+1)).GetError(); err != nil {
   				panic(err)
   			}
   		}
   	}
   
   	// 列出目录a下的所有文件和目录
   	dirA := filesystemV4.NewDir(filesystemV4.Rel("./a")).LS()
   	for _, file := range dirA.GetFiles() {
   		Printf("file in a: %s\n", file.GetFullPath())
   	}
   	for _, dir := range dirA.GetDirs() {
   		Printf("dir in a: %s\n", dir.GetFullPath())
   
   		for _, file := range dir.LS().GetFiles() {
   			Printf("file in b: %s\n", file.GetFullPath())
   		}
   
   		for _, dir := range dir.LS().GetDirs() {
   			Printf("dir in b: %s\n", dir.GetFullPath())
   		}
   	}
   
   	// 打印结果：
   	// file in a: /Users/yujizhou/development/projects/go/readme/a/file-1.txt
   	// file in a: /Users/yujizhou/development/projects/go/readme/a/file-2.txt
   	// file in a: /Users/yujizhou/development/projects/go/readme/a/file-3.txt
   	// file in a: /Users/yujizhou/development/projects/go/readme/a/file-4.txt
   	// file in a: /Users/yujizhou/development/projects/go/readme/a/file-5.txt
   	// dir in a: /Users/yujizhou/development/projects/go/readme/a/b
   	// file in b: /Users/yujizhou/development/projects/go/readme/a/b/file-1.txt
   	// file in b: /Users/yujizhou/development/projects/go/readme/a/b/file-2.txt
   	// file in b: /Users/yujizhou/development/projects/go/readme/a/b/file-3.txt
   	// file in b: /Users/yujizhou/development/projects/go/readme/a/b/file-4.txt
   	// file in b: /Users/yujizhou/development/projects/go/readme/a/b/file-5.txt
   }
   
   

8. 其他简单方法

   Lock() Filesystemer      // 加锁：写锁
   Unlock() Filesystemer    // 解锁：写锁
   RLock() Filesystemer     // 加锁：读锁
   RUnlock() Filesystemer   // 解锁：读锁
   RemoveAll() Filesystemer // 删除文件夹（包括文件夹下所有递归子集）
   Up() Filesystemer        // 返回上一级