diff options
| author | mo khan <mo@mokhan.ca> | 2025-05-14 13:18:54 -0600 |
|---|---|---|
| committer | mo khan <mo@mokhan.ca> | 2025-05-14 13:18:54 -0600 |
| commit | 4b2d609a0efcc1d9b2f1a08f954d067ad1d9cd1e (patch) | |
| tree | 0afacf9217b0569130da6b97d4197331681bf119 /vendor/github.com/lufia/plan9stats/disk.go | |
| parent | ab373d1fe698cd3f53258c09bc8515d88a6d0b9e (diff) | |
test: use playwright to test out an OIDC login
Diffstat (limited to 'vendor/github.com/lufia/plan9stats/disk.go')
| -rw-r--r-- | vendor/github.com/lufia/plan9stats/disk.go | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/vendor/github.com/lufia/plan9stats/disk.go b/vendor/github.com/lufia/plan9stats/disk.go new file mode 100644 index 0000000..4a4fa0c --- /dev/null +++ b/vendor/github.com/lufia/plan9stats/disk.go @@ -0,0 +1,116 @@ +package stats + +import ( + "bufio" + "bytes" + "context" + "os" + "path/filepath" + "strings" +) + +// Storage represents /dev/sdXX/ctl. +type Storage struct { + Name string + Model string + Capacity int64 + Partitions []*Partition +} + +// Partition represents a part of /dev/sdXX/ctl. +type Partition struct { + Name string + Start uint64 + End uint64 +} + +func ReadStorages(ctx context.Context, opts ...Option) ([]*Storage, error) { + cfg := newConfig(opts...) + sdctl := filepath.Join(cfg.rootdir, "/dev/sdctl") + f, err := os.Open(sdctl) + if err != nil { + return nil, err + } + defer f.Close() + + var a []*Storage + scanner := bufio.NewScanner(f) + for scanner.Scan() { + fields := bytes.Split(scanner.Bytes(), delim) + if len(fields) == 0 { + continue + } + exp := string(fields[0]) + "*" + if !strings.HasPrefix(exp, "sd") { + continue + } + dir := filepath.Join(cfg.rootdir, "/dev", exp) + m, err := filepath.Glob(dir) + if err != nil { + return nil, err + } + for _, dir := range m { + s, err := readStorage(dir) + if err != nil { + return nil, err + } + a = append(a, s) + } + } + if err := scanner.Err(); err != nil { + return nil, err + } + return a, nil +} + +func readStorage(dir string) (*Storage, error) { + ctl := filepath.Join(dir, "ctl") + f, err := os.Open(ctl) + if err != nil { + return nil, err + } + defer f.Close() + + var s Storage + s.Name = filepath.Base(dir) + scanner := bufio.NewScanner(f) + for scanner.Scan() { + line := scanner.Bytes() + switch { + case bytes.HasPrefix(line, []byte("inquiry ")): + s.Model = string(bytes.TrimSpace(line[7:])) + case bytes.HasPrefix(line, []byte("geometry ")): + fields := bytes.Split(line, delim) + if len(fields) < 3 { + continue + } + var p intParser + sec := p.ParseInt64(string(fields[1]), 10) + size := p.ParseInt64(string(fields[2]), 10) + if err := p.Err(); err != nil { + return nil, err + } + s.Capacity = sec * size + case bytes.HasPrefix(line, []byte("part ")): + fields := bytes.Split(line, delim) + if len(fields) < 4 { + continue + } + var p intParser + start := p.ParseUint64(string(fields[2]), 10) + end := p.ParseUint64(string(fields[3]), 10) + if err := p.Err(); err != nil { + return nil, err + } + s.Partitions = append(s.Partitions, &Partition{ + Name: string(fields[1]), + Start: start, + End: end, + }) + } + } + if err := scanner.Err(); err != nil { + return nil, err + } + return &s, nil +} |
