func updateCheck(c *config.Config, q *registry.Queue) error {
// Check update-check file before updating again
shouldCheck, err := checkShouldCheckUpdate()
if err != nil {
return err
}
if !shouldCheck {
return nil
}
// Fetch last commits, both localy & remotely
latestSha, err := fetchLatestCommit()
if err != nil {
return err
}
currentSha, err := fetchCurrentCommit()
if err != nil {
return err
}
// Couldn't retrieve current/latest commit, ignore update
if latestSha == "" || currentSha == "" {
if *config.Verbose {
log.Printf("local or remote version was not retrieved correctly\n")
}
return nil
}
if err := writeCheckUpdate(); err != nil {
return err
}
// No update, return directly
if latestSha == currentSha {
if *config.Verbose {
log.Printf("same version detected\n")
}
return nil
}
// Ask for update
if utils.Ask("There's a new CB version. Do you want to auto-update it?") {
return q.RunTasks(c, []string{"update@0"})
}
return nil
}
// Copy a file, using templates if needed, from srcPath to destPath.
func copyFile(c *config.Config, appname, srcPath, destPath, root string) (string, error) {
// Use a template for the file if needed
if strings.HasPrefix(filepath.Base(srcPath), "cbtmpl.") {
srcName, err := copyFileTemplate(appname, srcPath)
if err != nil {
return destPath, fmt.Errorf("copy file template failed: %s", err)
}
srcPath = srcName
destPath = filepath.Join(filepath.Dir(destPath), filepath.Base(destPath)[7:])
}
// Open source file
src, err := os.Open(srcPath)
if err != nil {
return destPath, fmt.Errorf("open source file failed: %s", err)
}
defer src.Close()
// Path of the file relative to the root
relDest, err := filepath.Rel(root, destPath)
if err != nil {
return destPath, fmt.Errorf("cannot rel dest path: %s", err)
}
if _, err := os.Stat(destPath); err != nil {
// Stat failed
if !os.IsNotExist(err) {
return destPath, fmt.Errorf("stat failed: %s", err)
}
// If it doesn't exists, but the config file is present, we're updating
// the contents, ask for creation perms
if c != nil {
q := fmt.Sprintf("Do you want to create `%s`?", relDest)
if !utils.Ask(q) {
return destPath, nil
}
}
} else {
// If it exists, but they're equal, ignore the copy of this file
if equal, err := compareFiles(srcPath, destPath); err != nil {
return destPath, fmt.Errorf("compare files failed: %s", err)
} else if equal {
return destPath, nil
}
// Otherwise ask the user to overwrite the file
q := fmt.Sprintf("Do you want to overwrite `%s`?", relDest)
if !utils.Ask(q) {
return destPath, nil
}
}
// Open dest file
dest, err := os.Create(destPath)
if err != nil {
return destPath, err
}
defer dest.Close()
// Copy the file contents
if *config.Verbose {
log.Printf("copy file `%s`\n", relDest)
}
if _, err := io.Copy(dest, src); err != nil {
return destPath, fmt.Errorf("copy file failed: %s", err)
}
return destPath, nil
}