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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) collectFiles(ms map[string]int64) {
curTime := time.Now()
if time.Since(fc.lastDiscoveryFiles) >= fc.DiscoveryEvery.Duration() {
fc.lastDiscoveryFiles = curTime
fc.curFiles = fc.discoveryFiles()
fc.updateFilesCharts(fc.curFiles)
}
for _, path := range fc.curFiles {
fc.collectFile(ms, path, curTime)
}
ms["num_of_files"] = int64(len(fc.curFiles))
}
func (fc *Filecheck) collectFile(ms map[string]int64, path string, curTime time.Time) {
info, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
ms[fileDimID(path, "exists")] = 0
} else {
ms[fileDimID(path, "exists")] = 1
}
fc.Debug(err)
return
}
if info.IsDir() {
return
}
ms[fileDimID(path, "exists")] = 1
ms[fileDimID(path, "size_bytes")] = info.Size()
ms[fileDimID(path, "mtime_ago")] = int64(curTime.Sub(info.ModTime()).Seconds())
}
func (fc *Filecheck) discoveryFiles() (files []string) {
for _, path := range fc.Files.Include {
if hasMeta(path) {
continue
}
files = append(files, path)
}
for _, path := range fc.Files.Include {
if !hasMeta(path) {
continue
}
matches, _ := filepath.Glob(path)
for _, v := range matches {
fi, err := os.Lstat(v)
if err == nil && fi.Mode().IsRegular() {
files = append(files, v)
}
}
}
return removeDuplicates(files)
}
func (fc *Filecheck) updateFilesCharts(files []string) {
set := make(map[string]bool, len(files))
for _, path := range files {
set[path] = true
if !fc.collectedFiles[path] {
fc.collectedFiles[path] = true
fc.addFileToCharts(path)
}
}
for path := range fc.collectedFiles {
if !set[path] {
delete(fc.collectedFiles, path)
fc.removeFileFromCharts(path)
}
}
}
func (fc *Filecheck) addFileToCharts(path string) {
for _, chart := range *fc.Charts() {
if !strings.HasPrefix(chart.ID, "file_") {
continue
}
var id string
switch chart.ID {
case fileExistenceChart.ID:
id = fileDimID(path, "exists")
case fileModTimeAgoChart.ID:
id = fileDimID(path, "mtime_ago")
case fileSizeChart.ID:
id = fileDimID(path, "size_bytes")
default:
fc.Warningf("add dimension: couldn't dim id for '%s' chart (file '%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) removeFileFromCharts(path string) {
for _, chart := range *fc.Charts() {
if !strings.HasPrefix(chart.ID, "file_") {
continue
}
var id string
switch chart.ID {
case fileExistenceChart.ID:
id = fileDimID(path, "exists")
case fileModTimeAgoChart.ID:
id = fileDimID(path, "mtime_ago")
case fileSizeChart.ID:
id = fileDimID(path, "size_bytes")
default:
fc.Warningf("remove dimension: couldn't dim id for '%s' chart (file '%s')", chart.ID, path)
continue
}
if err := chart.MarkDimRemove(id, true); err != nil {
fc.Warning(err)
continue
}
chart.MarkNotCreated()
}
}
func fileDimID(path, metric string) string {
return fmt.Sprintf("file_%s_%s", reSpace.ReplaceAllString(path, "_"), metric)
}
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