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New cache CLI: publish metrics (#280)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package files | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "testing" | ||
|
|
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| "github.com/semaphoreci/toolbox/cache-cli/pkg/metrics" | ||
| assert "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
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| func Test__UnpackSendsMetricsOnFailure(t *testing.T) { | ||
| os.Setenv("SEMAPHORE_TOOLBOX_METRICS_ENABLED", "true") | ||
| metricsManager, err := metrics.InitMetricsManager(metrics.LocalBackend) | ||
| assert.Nil(t, err) | ||
|
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| tempFile, _ := ioutil.TempFile("/tmp", "*") | ||
| tempFile.WriteString("this is not a proper archive") | ||
|
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| _, err = Unpack(metricsManager, tempFile.Name()) | ||
| assert.NotNil(t, err) | ||
|
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| bytes, err := ioutil.ReadFile("/tmp/toolbox_metrics") | ||
| assert.Nil(t, err) | ||
| assert.Contains(t, string(bytes), fmt.Sprintf("%s 1", metrics.CacheCorruptionRate)) | ||
|
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| os.Remove(tempFile.Name()) | ||
| os.Remove("/tmp/toolbox_metrics") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| package metrics | ||
|
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| import ( | ||
| "fmt" | ||
| "os" | ||
| ) | ||
|
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| type LocalMetricsManager struct { | ||
| ToolboxMetricsPath string | ||
| CacheMetricsPath string | ||
| } | ||
|
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| func NewLocalMetricsBackend() (*LocalMetricsManager, error) { | ||
| return &LocalMetricsManager{ | ||
| ToolboxMetricsPath: "/tmp/toolbox_metrics", | ||
| CacheMetricsPath: "/tmp/cache_metrics", | ||
| }, nil | ||
| } | ||
|
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| func (b *LocalMetricsManager) Enabled() bool { | ||
| return os.Getenv("SEMAPHORE_TOOLBOX_METRICS_ENABLED") == "true" | ||
| } | ||
|
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| func (b *LocalMetricsManager) PublishBatch(metrics []Metric) error { | ||
| if !b.Enabled() { | ||
| return nil | ||
| } | ||
|
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| for _, metric := range metrics { | ||
| err := b.Publish(metric) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func (b *LocalMetricsManager) Publish(metric Metric) error { | ||
| if !b.Enabled() { | ||
| return nil | ||
| } | ||
|
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| switch metric.Name { | ||
| case CacheDownloadSize, CacheDownloadTime, CacheUser, CacheServer: | ||
| return publishMetricToFile(b.CacheMetricsPath, metric.Name, metric.Value) | ||
| case CacheTotalRate, CacheCorruptionRate: | ||
| return publishMetricToFile(b.ToolboxMetricsPath, metric.Name, metric.Value) | ||
| } | ||
|
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| fmt.Printf("Ignoring metric %s\n", metric.Name) | ||
| return nil | ||
| } | ||
|
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| func publishMetricToFile(file, metricName, metricValue string) error { | ||
| f, err := os.OpenFile(file, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| defer f.Close() | ||
|
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| line := fmt.Sprintf("%s %s\n", metricName, metricValue) | ||
|
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| _, err = f.WriteString(line) | ||
| return err | ||
| } |
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