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simple cmdline tool
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‎.github/workflows/docker-publish.yml

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name: Docker Image
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on:
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release:
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types: [created]
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env:
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REGISTRY: ghcr.io
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IMAGE_NAME: ${{ github.repository }}
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jobs:
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build:
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runs-on: ubuntu-latest
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permissions:
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contents: read
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packages: write
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steps:
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- name: Checkout repository
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uses: actions/checkout@v2
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- name: Log into registry ${{ env.REGISTRY }}
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uses: docker/login-action@v1
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with:
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registry: ${{ env.REGISTRY }}
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Extract Docker metadata
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id: meta
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uses: docker/metadata-action@v3
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with:
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images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=ref,event=branch
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type=ref,event=pr
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type=semver,pattern={{version}}
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- name: Build and push Docker image
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uses: docker/build-push-action@v2
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with:
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context: .
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push: true
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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build-args: |
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VERSION=${{ steps.meta.outputs.version }}

‎Dockerfile

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FROM golang:1.16-buster AS builder
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WORKDIR /go/src/logparser
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COPY . .
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RUN go build -mod=readonly -o /usr/bin/logparser ./cmd/
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ENTRYPOINT ["logparser"]

‎LICENSE

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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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other entities that control, are controlled by, or are under common
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8. Limitation of Liability. In no event and under no legal theory,
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9. Accepting Warranty or Additional Liability. While redistributing
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END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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limitations under the License.

‎cmd/logparser.go

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package main
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import (
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"bufio"
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"errors"
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"flag"
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"fmt"
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"github.com/coroot/logparser"
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"io"
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"os"
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"sort"
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"strings"
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"time"
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)
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func main() {
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screenWidth := flag.Int("w", 120, "terminal width")
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flag.Parse()
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reader := bufio.NewReader(os.Stdin)
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ch := make(chan logparser.LogEntry)
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parser := logparser.NewParser(ch, nil)
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t := time.Now()
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for {
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line, err := reader.ReadString('\n')
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if err != nil {
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if !errors.Is(err, io.EOF) {
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fmt.Println(err)
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}
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break
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}
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ch <- logparser.LogEntry{Content: strings.TrimSuffix(line, "\n"), Level: logparser.LevelUnknown}
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}
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d := time.Since(t)
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defer parser.Stop()
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counters := parser.GetCounters()
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order(counters)
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output(counters, *screenWidth, d)
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}
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func order(counters []logparser.LogCounter) {
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sort.Slice(counters, func(i, j int) bool {
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ci, cj := counters[i], counters[j]
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if ci.Level == cj.Level {
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return ci.Messages > cj.Messages
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}
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return ci.Level < cj.Level
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})
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}
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func output(counters []logparser.LogCounter, screenWidth int, duration time.Duration) {
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grandTotal, total, max := 0, 0, 0
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for _, c := range counters {
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grandTotal += c.Messages
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if c.Sample == "" {
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continue
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}
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total += c.Messages
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if c.Messages > max {
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max = c.Messages
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}
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}
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barWidth := 30
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lineWidth := screenWidth - barWidth
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for _, c := range counters {
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if c.Sample == "" {
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continue
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}
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w := c.Messages * barWidth / max
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bar := strings.Repeat("▇", w+1) + strings.Repeat(" ", barWidth-w)
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prefix := colorize(c.Level, "%s %d (%.2f%%)\t", bar, c.Messages, float64(c.Messages*100)/float64(total))
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sample := ""
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for i, line := range strings.Split(c.Sample, "\n") {
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if len(line) > lineWidth {
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line = line[:lineWidth] + "..."
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}
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sample += line + "\n" + strings.Repeat(" ", len(prefix))
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if i > 10 {
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sample += "...\n"
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break
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}
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}
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sample = strings.TrimRight(sample, "\n ")
87+
fmt.Printf("%s%s\n", prefix, sample)
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}
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byLevel := map[logparser.Level]int{}
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for _, c := range counters {
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byLevel[c.Level] += c.Messages
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}
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fmt.Println()
95+
fmt.Printf("%d messages processed in %.3f seconds:\n", grandTotal, duration.Seconds())
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for l, c := range byLevel {
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fmt.Printf(" %s: %d\n", l, c)
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}
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fmt.Println()
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}
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func colorize(level logparser.Level, format string, a ...interface{}) string {
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c := "\033[37m" // grey
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switch level {
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case logparser.LevelCritical, logparser.LevelError:
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c = "\033[31m" // red
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case logparser.LevelWarning:
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c = "\033[33m" // yellow
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case logparser.LevelInfo:
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c = "\033[32m" // green
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}
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return fmt.Sprintf(c+format+"\033[0m", a...)
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}

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