VictoriaMetrics/app/vmalert/config/fslocal/fslocal.go
Zakhar Bessarab 19eaf17e11
app/vmalert: add support of recursive path globs for rules and templates (#4148)
Supports using `**` for `-rule` and `-rule.templates`: `dir/**/*.tpl` loads contents of dir and all subdirectories recursively.

See: #4041

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Artem Navoiev <tenmozes@gmail.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2023-05-08 16:22:30 -07:00

50 lines
1.3 KiB
Go

package fslocal
import (
"fmt"
"os"
"github.com/bmatcuk/doublestar/v4"
)
// FS represents a local file system
type FS struct {
// Pattern is used for matching one or multiple files.
// The pattern may describe hierarchical names such as
// /usr/*/bin/ed (assuming the Separator is '/').
Pattern string
}
// Init verifies that configured Pattern is correct
func (fs *FS) Init() error {
_, err := doublestar.FilepathGlob(fs.Pattern)
return err
}
// String implements Stringer interface
func (fs *FS) String() string {
return fmt.Sprintf("Local FS{MatchPattern: %q}", fs.Pattern)
}
// List returns the list of file names which will be read via Read fn
func (fs *FS) List() ([]string, error) {
matches, err := doublestar.FilepathGlob(fs.Pattern)
if err != nil {
return nil, fmt.Errorf("error while matching files via pattern %s: %w", fs.Pattern, err)
}
return matches, nil
}
// Read returns a map of read files where
// key is the file name and value is file's content.
func (fs *FS) Read(files []string) (map[string][]byte, error) {
result := make(map[string][]byte)
for _, path := range files {
data, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("error while reading file %q: %w", path, err)
}
result[path] = data
}
return result, nil
}