Loop through files and folders recursively in golang

loop_files_folders_recursively.go

package main

import (
    "fmt"
    "os"
    "path/filepath"
)

func main() ([]string, error) {
    searchDir := "c:/path/to/dir"

    fileList := []string{}
    err := filepath.Walk(searchDir, func(path string, f os.FileInfo, err error) error {
        fileList = append(fileList, path)
        return nil
    })

    for _, file := range fileList {
        fmt.Println(file)
    }
}

err decalared but not used

@hongwutian Add _ = err to line 17 as a low budget work around.

actually, you can just remove err := from line 13.

wouldn't it be more prudent to handle the error?

hmm, you're not going to be able to return in main function, nothing to return to :)

tmp/sandbox198344374/main.go:9:6: func main must have no arguments and no return values
tmp/sandbox198344374/main.go:21:1: missing return at end of function

Made some changes for consideration.

• https://gist.github.com/fubarhouse/5ae3fdd5ed5be9e718a92d9b3c780a22

Changes include:

• Handles error for Walk()
• Walk returns errors as applicable
• Changes variable declaration to use make()
• Function has return value, including []string of files and error when applicable (expected nil)
• Function should not be main with a return value, so it's now a separate function called from main.

You don't need to update this one, but I hope you consider it.

Thanks, very useful

@fubarhouse
no point in using make that I can see.