59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
package local
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import (
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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)
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func Open(address string) (string, error) {
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if !pathExists(address) {
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return "", fmt.Errorf("Invalid system path: %s", address)
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}
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file, err := os.Open(address)
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if err != nil {
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return "", fmt.Errorf("Unable to open file: %s", address)
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}
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defer file.Close()
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if pathIsDir(address) {
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fileList, err := file.Readdirnames(0)
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if err != nil {
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return "", fmt.Errorf("Unable to read from directory: %s", address)
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}
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var out strings.Builder
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out.WriteString(fmt.Sprintf("Current directory: %s\n\n", address))
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for _, obj := range fileList {
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out.WriteString(obj)
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out.WriteString("\n")
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}
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return out.String(), nil
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}
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bytes, err := ioutil.ReadAll(file)
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if err != nil {
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return "", fmt.Errorf("Unable to read file: %s", address)
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}
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return string(bytes), nil
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}
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func pathExists(p string) bool {
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exists := true
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if _, err := os.Stat(p); os.IsNotExist(err) {
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exists = false
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}
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return exists
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}
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func pathIsDir(p string) bool {
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info, err := os.Stat(p)
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if err != nil {
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return false
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}
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return info.IsDir()
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}
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