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util.go
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/
util.go
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package server
import (
"fmt"
"os"
"path/filepath"
"golang.org/x/sys/unix"
"gopkg.in/yaml.v2"
)
func fileUnmarshal(v interface{}, path ...string) error {
b, err := os.ReadFile(filepath.Join(path...))
if err != nil {
return fmt.Errorf("failed to read file contents: %w", err)
}
if err := yaml.Unmarshal(b, v); err != nil {
return fmt.Errorf("failed to parse as yaml: %w", err)
}
return nil
}
func fileMarshal(v interface{}, path ...string) error {
b, err := yaml.Marshal(v)
if err != nil {
return fmt.Errorf("failed to marshal yaml: %w", err)
}
if err := os.WriteFile(filepath.Join(path...), b, 0600); err != nil {
return fmt.Errorf("failed to write file: %w", err)
}
return nil
}
func fileExists(path ...string) (bool, error) {
if _, err := os.Stat(filepath.Join(path...)); err != nil {
if !os.IsNotExist(err) {
return false, fmt.Errorf("failed to stat: %w", err)
}
return false, nil
}
return true, nil
}
func checkAvailableStorageSize(storageDir string, minimumBytes uint64) error {
var stat unix.Statfs_t
if err := unix.Statfs(storageDir, &stat); err != nil {
return fmt.Errorf("failed to check available disk size: %w", err)
}
if availableBytes := stat.Bavail * uint64(stat.Bsize); availableBytes < minimumBytes {
return fmt.Errorf("available disk size (%v bytes) is below minimum required (%v bytes)", availableBytes, minimumBytes)
}
return nil
}