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https://github.com/d0zingcat/gocryptotrader.git
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e20d204b19
* Adds new file.Move func to address a bug with Golang/Docker volumes when using os.Rename Also uses TempDir for tests instead of live directories and increases test coverage for file.Write * Goimport the imports * Make usage of file package name consistent so it no longer clashes with vars * Remove outputFile if io.Copy fails
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package file
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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)
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// Write writes selected data to a file or returns an error if it fails. This
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// func also ensures that all files are set to this permission (only rw access
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// for the running user and the group the user is a member of)
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func Write(file string, data []byte) error {
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return ioutil.WriteFile(file, data, 0770)
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}
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// Move moves a file from a source path to a destination path
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// This must be used across the codebase for compatibility with Docker volumes
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// and Golang (fixes Invalid cross-device link when using os.Rename)
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func Move(sourcePath, destPath string) error {
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inputFile, err := os.Open(sourcePath)
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if err != nil {
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return err
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}
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outputFile, err := os.Create(destPath)
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if err != nil {
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inputFile.Close()
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return err
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}
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_, err = io.Copy(outputFile, inputFile)
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inputFile.Close()
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outputFile.Close()
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if err != nil {
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if errRem := os.Remove(destPath); errRem != nil {
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return fmt.Errorf(
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"unable to os.Remove error: %s after io.Copy error: %s",
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errRem,
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err,
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)
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}
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return err
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}
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return os.Remove(sourcePath)
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}
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