Lcov report (#2)

* execute node bin

* calculate percentage for lcov file

* install node in docker image

* use relative path to bin folder

* update readme

Dockerfile

@@ -1,5 +1,8 @@
 FROM ruby:2.6.5-alpine
 
+RUN apk add --update nodejs
+
 COPY lib /action/lib
+COPY bin /action/bin
 
 CMD ["ruby", "/action/lib/index.rb"]

README.md

@@ -4,15 +4,26 @@ A GitHub Action that check minimum coverage percentage!
 
 ### Usage
 
-#### [Simplecov](https://github.com/colszowka/simplecov)
+#### Lcov
 
 ```yml
-- uses: devmasx/coverage-check-action@v1.0.1
+- uses: devmasx/coverage-check-action@v1.1.0
   with:
-    result_path: coverage/.last_run.json
+    type: lcov
+    result_path: coverage/example.lcov
+    min_coverage: 90
     token: ${{secrets.GITHUB_TOKEN}}
+```
+
+#### [Simplecov](https://github.com/colszowka/simplecov)
+
+```yml
+- uses: devmasx/[email protected]
+  with:
     type: simplecov
+    result_path: coverage/.last_run.json
     min_coverage: 90
+    token: ${{secrets.GITHUB_TOKEN}}
 ```
 
 ## Screenshots

action.yml

@@ -6,9 +6,9 @@ branding:
   color: "green"
 inputs:
   type:
-    description: "simplecov | jest"
+    description: "lcov | simplecov"
     required: true
-    default: "simplecov"
+    default: "lcov"
   token:
     description: "Github token for create checks"
     required: true

bin/lcov-parse.js

@@ -0,0 +1,129 @@
+/*
+Copyright (c) 2012, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://yuilibrary.com/license/
+*/
+
+var fs = require('fs'),
+  path = require('path');
+
+/* istanbul ignore next */
+var exists = fs.exists || path.exists;
+
+var walkFile = function (str, cb) {
+  var data = [], item;
+
+  ['end_of_record'].concat(str.split('\n')).forEach(function (line) {
+    line = line.trim();
+    var allparts = line.split(':'),
+      parts = [allparts.shift(), allparts.join(':')],
+      lines, fn;
+
+    switch (parts[0].toUpperCase()) {
+      case 'TN':
+        item.title = parts[1].trim();
+        break;
+      case 'SF':
+        item.file = parts.slice(1).join(':').trim();
+        break;
+      case 'FNF':
+        item.functions.found = Number(parts[1].trim());
+        break;
+      case 'FNH':
+        item.functions.hit = Number(parts[1].trim());
+        break;
+      case 'LF':
+        item.lines.found = Number(parts[1].trim());
+        break;
+      case 'LH':
+        item.lines.hit = Number(parts[1].trim());
+        break;
+      case 'DA':
+        lines = parts[1].split(',');
+        item.lines.details.push({
+          line: Number(lines[0]),
+          hit: Number(lines[1])
+        });
+        break;
+      case 'FN':
+        fn = parts[1].split(',');
+        item.functions.details.push({
+          name: fn[1],
+          line: Number(fn[0])
+        });
+        break;
+      case 'FNDA':
+        fn = parts[1].split(',');
+        item.functions.details.some(function (i, k) {
+          if (i.name === fn[1] && i.hit === undefined) {
+            item.functions.details[k].hit = Number(fn[0]);
+            return true;
+          }
+        });
+        break;
+      case 'BRDA':
+        fn = parts[1].split(',');
+        item.branches.details.push({
+          line: Number(fn[0]),
+          block: Number(fn[1]),
+          branch: Number(fn[2]),
+          taken: ((fn[3] === '-') ? 0 : Number(fn[3]))
+        });
+        break;
+      case 'BRF':
+        item.branches.found = Number(parts[1]);
+        break;
+      case 'BRH':
+        item.branches.hit = Number(parts[1]);
+        break;
+    }
+
+    if (line.indexOf('end_of_record') > -1) {
+      data.push(item);
+      item = {
+        lines: {
+          found: 0,
+          hit: 0,
+          details: []
+        },
+        functions: {
+          hit: 0,
+          found: 0,
+          details: []
+        },
+        branches: {
+          hit: 0,
+          found: 0,
+          details: []
+        }
+      };
+    }
+  });
+
+  data.shift();
+
+  if (data.length) {
+    cb(null, data);
+  } else {
+    cb('Failed to parse string');
+  }
+};
+
+var parse = function (file, cb) {
+  exists(file, function (x) {
+    if (!x) {
+      return walkFile(file, cb);
+    }
+    fs.readFile(file, 'utf8', function (err, str) {
+      walkFile(str, cb);
+    });
+  });
+
+};
+
+var path = process.argv[2]
+parse(path, function (err, data) {
+  console.log(JSON.stringify(data, null, 2))
+});
+
+// console.log(process.argv[2])

lib/coverage_report.rb

@@ -1,33 +1,46 @@
 # frozen_string_literal: true
 
 class CoverageReport
-  def self.generate(type, report_path, data)
-    if type == 'simplecov'
-      simplecov(report_path, data)
-    elsif type == 'jest'
-      jest(report_path, data)
-    else
-      raise 'InvalidCoverageReportType'
+  class << self
+    def generate(type, report_path, data)
+      if type == 'simplecov'
+        simplecov(report_path, data)
+      elsif type == 'lcov'
+        lcov(report_path, data)
+      else
+        raise 'InvalidCoverageReportType'
+      end
     end
-  end
 
-  def self.simplecov(report_path, data)
-    report = read_json(report_path)
-    minumum_percent = data[:min]
-    covered_percent = report.dig('result', 'covered_percent')
-    { 'lines' => { 'covered_percent' => covered_percent, 'minumum_percent' => minumum_percent } }
-  end
+    def simplecov(report_path, data)
+      report = read_json(report_path)
+      minumum_percent = data[:min]
+      covered_percent = report.dig('result', 'covered_percent')
+      { 'lines' => { 'covered_percent' => covered_percent, 'minumum_percent' => minumum_percent } }
+    end
 
-  def self.jest(report_path, data)
-    report = read_json(report_path)
-    minumum_percent = data[:min]
-    covered_percent = report.dig('result', 'covered_percent')
-    { 'lines' => { 'covered_percent' => covered_percent, 'minumum_percent' => minumum_percent } }
-  end
+    def lcov(report_path, data)
+      lcov_result = execute_lcov_parse(report_path)
+      minumum_percent = data[:min]
+      { 'lines' => { 'covered_percent' => lcov_covered_percent(lcov_result), 'minumum_percent' => minumum_percent } }
+    end
 
-  private
+    private
 
-  def self.read_json(path)
-    JSON.parse(File.read(path))
+    def lcov_covered_percent(lcov_result)
+      lines = lcov_result.map { |r| r['lines']['details'] }.flatten
+      total_lines = lines.count.to_f.round(2)
+      covered_lines = lines.select { |r| r['hit'] >= 1 }.count.to_f
+      ((covered_lines / total_lines) * 100).round(2)
+    end
+
+    def execute_lcov_parse(report_path)
+      bin_path = "#{File.dirname(__FILE__)}/../bin"
+      JSON.parse(`node #{bin_path}/lcov-parse.js #{report_path}`)
+    end
+
+    def read_json(path)
+      JSON.parse(File.read(path))
+    end
   end
 end

spec/coverage_report_spec.rb

@@ -7,4 +7,9 @@
     result = CoverageReport.simplecov('./spec/fixtures/simplecov.json', min: 80)
     expect(result['lines']['covered_percent']).to eq(80.5)
   end
+
+  it '.lcov' do
+    result = CoverageReport.lcov('./spec/fixtures/example.lcov', min: 80)
+    expect(result['lines']['covered_percent']).to eq(85.61)
+  end
 end