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// SPDX-License-Identifier: GPL-3.0-or-later
package filecheck
import (
"fmt"
"os"
"path/filepath"
"strings"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
)
func (fc *Filecheck) collectDirs(ms map[string]int64) {
curTime := time.Now()
if time.Since(fc.lastDiscoveryDirs) >= fc.DiscoveryEvery.Duration() {
fc.lastDiscoveryDirs = curTime
fc.curDirs = fc.discoveryDirs()
fc.updateDirsCharts(fc.curDirs)
}
for _, path := range fc.curDirs {
fc.collectDir(ms, path, curTime)
}
ms["num_of_dirs"] = int64(len(fc.curDirs))
}
func (fc *Filecheck) collectDir(ms map[string]int64, path string, curTime time.Time) {
info, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
ms[dirDimID(path, "exists")] = 0
} else {
ms[dirDimID(path, "exists")] = 1
}
fc.Debug(err)
return
}
if !info.IsDir() {
return
}
ms[dirDimID(path, "exists")] = 1
ms[dirDimID(path, "mtime_ago")] = int64(curTime.Sub(info.ModTime()).Seconds())
if num, err := calcDirNumOfFiles(path); err == nil {
ms[dirDimID(path, "num_of_files")] = int64(num)
}
if fc.Dirs.CollectDirSize {
if size, err := calcDirSize(path); err == nil {
ms[dirDimID(path, "size_bytes")] = size
}
}
}
func (fc *Filecheck) discoveryDirs() (dirs []string) {
for _, path := range fc.Dirs.Include {
if hasMeta(path) {
continue
}
dirs = append(dirs, path)
}
for _, path := range fc.Dirs.Include {
if !hasMeta(path) {
continue
}
matches, _ := filepath.Glob(path)
for _, v := range matches {
fi, err := os.Lstat(v)
if err == nil && fi.IsDir() {
dirs = append(dirs, v)
}
}
}
return removeDuplicates(dirs)
}
func (fc *Filecheck) updateDirsCharts(dirs []string) {
set := make(map[string]bool, len(dirs))
for _, path := range dirs {
set[path] = true
if !fc.collectedDirs[path] {
fc.collectedDirs[path] = true
fc.addDirToCharts(path)
}
}
for path := range fc.collectedDirs {
if !set[path] {
delete(fc.collectedDirs, path)
fc.removeDirFromCharts(path)
}
}
}
func (fc *Filecheck) addDirToCharts(path string) {
for _, chart := range *fc.Charts() {
if !strings.HasPrefix(chart.ID, "dir_") {
continue
}
var id string
switch chart.ID {
case dirExistenceChart.ID:
id = dirDimID(path, "exists")
case dirModTimeChart.ID:
id = dirDimID(path, "mtime_ago")
case dirNumOfFilesChart.ID:
id = dirDimID(path, "num_of_files")
case dirSizeChart.ID:
id = dirDimID(path, "size_bytes")
default:
fc.Warningf("add dimension: couldn't dim id for '%s' chart (dir '%s')", chart.ID, path)
continue
}
dim := &module.Dim{ID: id, Name: reSpace.ReplaceAllString(path, "_")}
if err := chart.AddDim(dim); err != nil {
fc.Warning(err)
continue
}
chart.MarkNotCreated()
}
}
func (fc *Filecheck) removeDirFromCharts(path string) {
for _, chart := range *fc.Charts() {
if !strings.HasPrefix(chart.ID, "dir_") {
continue
}
var id string
switch chart.ID {
case dirExistenceChart.ID:
id = dirDimID(path, "exists")
case dirModTimeChart.ID:
id = dirDimID(path, "mtime_ago")
case dirNumOfFilesChart.ID:
id = dirDimID(path, "num_of_files")
case dirSizeChart.ID:
id = dirDimID(path, "size_bytes")
default:
fc.Warningf("remove dimension: couldn't dim id for '%s' chart (dir '%s')", chart.ID, path)
continue
}
if err := chart.MarkDimRemove(id, true); err != nil {
fc.Warning(err)
continue
}
chart.MarkNotCreated()
}
}
func dirDimID(path, metric string) string {
return fmt.Sprintf("dir_%s_%s", reSpace.ReplaceAllString(path, "_"), metric)
}
func calcDirNumOfFiles(dirpath string) (int, error) {
f, err := os.Open(dirpath)
if err != nil {
return 0, err
}
defer func() { _ = f.Close() }()
// TODO: include dirs?
names, err := f.Readdirnames(-1)
return len(names), err
}
func calcDirSize(dirpath string) (int64, error) {
var size int64
err := filepath.Walk(dirpath, func(_ string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
size += info.Size()
}
return nil
})
return size, err
}
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