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Golang Template Parse Directory
source link: http://siongui.github.io/2017/02/13/go-template-parse-all-files-in-directory/
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Golang Template Parse Directory
February 13, 2017
There are ParseFiles and ParseGlob in Go text/template and html/template package, but sometimes we want to parse all files in a directory tree, so I write a ParseDirectory function to do this.
The code consists of two part:
- Use filepath.Walk to walk the file tree in the directory, and return all file paths in the directory.
// Recursively get all file paths in directory, including sub-directories.
func GetAllFilePathsInDirectory(dirpath string) ([]string, error) {
var paths []string
err := filepath.Walk(dirpath, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
paths = append(paths, path)
}
return nil
})
if err != nil {
return nil, err
}
return paths, nil
}
- Pass the file paths to ParseFiles function in template package, and the parsed template will be returned.
// Recursively parse all files in directory, including sub-directories.
func ParseDirectory(dirpath string) (*template.Template, error) {
paths, err := GetAllFilePathsInDirectory(dirpath)
if err != nil {
return nil, err
}
return template.ParseFiles(paths...)
}
Combine the above code, now we have ParseDirectory function, which takes directory path as argument and returns the parsed template.
Tested on:
- Ubuntu Linux 16.10
- Go 1.7.5
References:
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