Merge pull request #9 from breml/add-mustache

Add mustache

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: goreleaser
+
+on:
+  push:
+    tags:
+      - 'v[0-9]*'
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      -
+        name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -13,15 +13,24 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.14.x, 1.15.x]
+        go-version: [1.15.x, 1.16.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - name: Install Go
+    -
+      name: Install Go
       uses: actions/setup-go@v2
       with:
         go-version: ${{ matrix.go-version }}
-    - name: Checkout code
+
+    -
+      name: Checkout code
       uses: actions/checkout@v2
-    - name: Test
+
+    -
+      name: Build
+      run: go build ./...
+
+    -
+      name: Test
       run: go test -v -cover ./...

.gitignore

@@ -20,3 +20,6 @@
 
 .idea/
 *~
+
+# Goreleaser
+dist/

.goreleaser.yml

@@ -0,0 +1,31 @@
+# This is an example .goreleaser.yml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+before:
+  hooks:
+    # You may remove this if you don't use go modules.
+    - go mod tidy
+builds:
+  - main: ./cmd/mustache
+    binary: mustache
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+archives:
+  - name_template: "{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
+    replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: i386
+      amd64: x86_64
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  skip: true
+release:
+  github:
+    owner: breml
+    name: logstash-config

README.md

@@ -1,12 +1,12 @@
-# logstash-config : parser and abstract syntax tree for [Logstash](https://github.com/elastic/logstash) config files
+# logstash-config : parser and abstract syntax tree for [Logstash](https://www.elastic.co/logstash/) config files
 
 [![Test Status](https://github.com/breml/logstash-config/workflows/Test/badge.svg)](https://github.com/breml/logstash-config/actions?query=workflow%3ATest)
  [![Go Report Card](https://goreportcard.com/badge/github.com/breml/logstash-config)](https://goreportcard.com/report/github.com/breml/logstash-config)\
-[![GoDoc](https://godoc.org/github.com/breml/logstash-config?status.svg)](https://godoc.org/github.com/breml/logstash-config) [![License](https://img.shields.io/badge/license-Apache_2.0-blue.svg)](LICENSE)
+[![GoDoc](https://pkg.go.dev/badge/github.com/breml/logstash-config)](https://pkg.go.dev/github.com/breml/logstash-config) [![License](https://img.shields.io/badge/license-Apache_2.0-blue.svg)](LICENSE)
 
 ## Overview
 
-The Go package config provides a ready to use parser for [Logstash](https://github.com/elastic/logstash) configuration files.
+The Go package config provides a ready to use parser for Logstash ([github](https://github.com/elastic/logstash)) configuration files.
 
 The basis of the grammar for the parsing of the Logstash configuration format is the original [Logstash Treetop grammar](https://github.com/elastic/logstash/blob/master/logstash-core/lib/logstash/config/grammar.treetop) which could be used with only minor changes.
 
@@ -22,10 +22,42 @@ go get -t github.com/breml/logstash-config/...
 
 ## Usage
 
-### ls-config-check
+### mustache
 
-`cmd/ls-config-check` contains the source code for a small sample tool, which uses just allow to parse a given Logstash config file. If the file could be parsed successfully, the tool just exits with exit code `0`. If the parsing fails, the exit code is non zero and a error message, indicating the location, where the parsing failed, is printed.
-`ls-config-check <logstash-config-file>` could be used instead if `bin/logstash -f <logstash-config-file> -t`, which is orders of magnitude faster 😃.
+`mustache` is a command line tool that allows to syntax check, lint and format Logstash configuration files. The name of
+the tool is inspired by the original Logstash Logo ([wooden character with an eye-catching mustache](https://www.elastic.co/de/blog/high-level-logstash-roadmap-is-published)).
+
+The `check` command verifies the syntax of Logstash configuration files:
+
+```shell
+mustache check file.conf
+```
+
+The `lint` command checks for problems in Logstash configuration files.
+
+The following checks are performed:
+
+* Valid Logstash configuration file syntax
+* No comments in exceptional places (these are comments, that are valid by the Logstash configuration file syntax, but
+  but are located in exceptional or uncommon locations)
+* Precence of an `id` attribute for each plugin in the Logstash configuration
+
+If the `--auto-fix-id` flag is passed, each plugin gets automatically an ID. Be aware, that this potentially reformats
+the Logstash configuration files.
+
+```shell
+mustache lint --auto-fix-id file.conf
+```
+
+With the `format` command, mustache returns the provided configuration files in a standardized format (indentation,
+location of comments). By default, the reformatted file is print to standard out. If the flag `--write-to-source`
+is provided, the Logstash config files are reformatted in place.
+
+```shell
+mustache format --write-to-source file.conf
+```
+
+Use the `--help` flag to get more information about the usage of the tool.
 
 ## Rebuild parser
 

cmd/mustache/.gitignore

@@ -0,0 +1 @@
+mustache

cmd/mustache/main.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"os"
+
+	"github.com/breml/logstash-config/internal/app"
+)
+
+var Version = "(unknown)"
+
+func main() {
+	exitCode := app.Execute(Version, os.Stdout, os.Stderr)
+	os.Exit(exitCode)
+}

go.mod

@@ -3,8 +3,11 @@ module github.com/breml/logstash-config
 go 1.14
 
 require (
+	github.com/hashicorp/go-multierror v1.1.0
 	github.com/kr/pretty v0.2.0 // indirect
+	github.com/pkg/errors v0.9.1
 	github.com/sergi/go-diff v1.1.0
+	github.com/spf13/cobra v1.1.3
+	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.5.1 // indirect
-	gopkg.in/yaml.v2 v2.3.0 // indirect
 )