+
+func CtxFromCmdline(cfgPath, spoolPath, logPath string, quiet, debug bool) (*Ctx, error) {
+ env := os.Getenv(CfgPathEnv)
+ if env != "" {
+ cfgPath = env
+ }
+ cfgRaw, err := ioutil.ReadFile(cfgPath)
+ if err != nil {
+ return nil, err
+ }
+ ctx, err := CfgParse(cfgRaw)
+ if err != nil {
+ return nil, err
+ }
+ if spoolPath == "" {
+ env = os.Getenv(CfgSpoolEnv)
+ if env != "" {
+ ctx.Spool = env
+ }
+ } else {
+ ctx.Spool = spoolPath
+ }
+ if logPath == "" {
+ env = os.Getenv(CfgLogEnv)
+ if env != "" {
+ ctx.LogPath = env
+ }
+ } else {
+ ctx.LogPath = logPath
+ }
+ ctx.Quiet = quiet
+ ctx.Debug = debug
+ return ctx, nil
+}
+
+func (ctx *Ctx) IsEnoughSpace(want int64) bool {
+ var s unix.Statfs_t
+ if err := unix.Statfs(ctx.Spool, &s); err != nil {
+ log.Fatalln(err)
+ }
+ return int64(s.Bavail)*int64(s.Bsize) > want
+}