57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package textfile
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import (
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"log"
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"os"
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"path/filepath"
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"strings"
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"github.com/prometheus/client_golang/prometheus"
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)
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const namespace = "textfile"
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var (
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metricReadError = prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "", "error"),
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"Checks for errors while reading text files",
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[]string{"path"}, nil,
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)
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)
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func (c *Collector) collectFileContents() {
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files, err := os.ReadDir(c.folderPath)
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if err != nil {
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log.Printf("error reading directory '%s': %v", c.folderPath, err)
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return
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}
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for _, file := range files {
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fileName := file.Name()
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if !strings.HasSuffix(strings.ToLower(fileName), ".prom") {
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continue
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}
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c.fileMap[fileName] = &fileData{
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readErrors: 0,
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fileName: fileName,
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}
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fullPath := filepath.Join(c.folderPath, fileName)
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content, err := os.ReadFile(fullPath)
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if err != nil {
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c.appendErrorForPath(fileName)
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log.Printf("error reading contents of file '%s': %v", fileName, err)
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}
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c.fileMap[fileName].fileContents = content
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}
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}
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func (c *Collector) collectFileErrors(ch chan<- prometheus.Metric) {
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for _, f := range c.fileMap {
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ch <- prometheus.MustNewConstMetric(
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metricReadError, prometheus.GaugeValue, float64(f.readErrors), f.fileName,
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)
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}
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}
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