Use fs directly since istanbul context writer doesn't support appending

Author: leeyi45

lib/vitest-reporter/dist.cjs

@@ -1 +1 @@
-"use strict";var{ReportBase:u}=require("istanbul-lib-report");function m(s){return s.statements.pct===100&&s.branches.pct===100&&s.functions.pct===100&&s.lines.pct===100}function h(s){if(s.isSummary())return[];let e=s.getCoverageSummary(!1),t=e.isEmpty()?0:e.lines.pct,r,c=s.getFileCoverage();if(t===100){let i=c.getBranchCoverageByLine();r=Object.entries(i).map(([l,{coverage:a}])=>[l,a===100])}else r=Object.entries(c.getLineCoverage());let o=!0;return r.reduce((i,[l,a])=>{if(a)o=!0;else{let p=parseInt(l);o?(i.push([p]),o=!1):i[i.length-1][1]=p}return i},[])}var f=["Statements","Branches","Functions","Lines"];module.exports=class extends u{skipEmpty;skipFull;results={};cw=null;watermarks;constructor(e){super(e),this.skipEmpty=!!e.skipEmpty,this.skipFull=!!e.skipFull,this.watermarks=null}onStart(e,n){if(!process.env.GITHUB_STEP_SUMMARY){console.log("Reporter not being executed in Github Actions environment");return}this.cw=n.writer.writeFile(process.env.GITHUB_STEP_SUMMARY),this.watermarks=n.watermarks,this.cw.println("<h3>Test Coverage</h3>"),this.cw.println("<table><thead><tr>");for(let t of["File",...f,"Uncovered Lines"])this.cw.println(`<th>${t}</th>`);this.cw.println("</tr></thead><tbody>")}onSummary(e){let n=e.getRelativeName()||"All Files",t=e.getCoverageSummary(!1),r=t.isEmpty();this.skipEmpty&&r||this.skipFull&&m(t)||(this.results[n]={statements:r?0:t.statements.pct,branches:r?0:t.branches.pct,functions:r?0:t.functions.pct,lines:r?0:t.lines.pct,uncoveredLines:h(e)})}onDetail(e){return this.onSummary(e)}formatter(e,n){if(!this.watermarks)return`<td>${e}%</td>`;let[t,r]=this.watermarks[n];return e<t?`<td><p style="color:red">${e}%</p></td>`:e>r?`<td><p style="color:green">${e}%</p></td>`:`<td><p style="color:yellow">${e}%</p></td>`}onEnd(){if(!this.cw)return;let e=Object.keys(this.results).sort();for(let n of e){let t=this.results[n];if(this.cw.println(`<tr><td><code>${n}</code></td>`),this.cw.println(this.formatter(t.statements,"statements")),this.cw.println(this.formatter(t.branches,"branches")),this.cw.println(this.formatter(t.functions,"functions")),this.cw.println(this.formatter(t.lines,"lines")),t.uncoveredLines.length>0){this.cw.println("<td><details><summary>Expand</summary><ul>");for(let r of t.uncoveredLines)r.length===1?this.cw.println(`<li>${r[0]}</li>`):this.cw.println(`<li>${r[0]}-${r[1]}</li>`);this.cw.println("</ul></details></td>")}else this.cw.println("<td></td>");this.cw.println("</tr>")}this.cw.println("</tbody></table>"),this.cw.close()}};
+"use strict";var m=require("fs"),{ReportBase:p}=require("istanbul-lib-report");function h(s){return s.statements.pct===100&&s.branches.pct===100&&s.functions.pct===100&&s.lines.pct===100}function f(s){if(s.isSummary())return[];let e=s.getCoverageSummary(!1),t=e.isEmpty()?0:e.lines.pct,r,c=s.getFileCoverage();if(t===100){let i=c.getBranchCoverageByLine();r=Object.entries(i).map(([a,{coverage:l}])=>[a,l===100])}else r=Object.entries(c.getLineCoverage());let o=!0;return r.reduce((i,[a,l])=>{if(l)o=!0;else{let u=parseInt(a);o?(i.push([u]),o=!1):i[i.length-1][1]=u}return i},[])}var w=["Statements","Branches","Functions","Lines"];module.exports=class extends p{skipEmpty;skipFull;results={};cw=null;watermarks=null;constructor(e){super(e),this.skipEmpty=!!e.skipEmpty,this.skipFull=!!e.skipFull}onStart(e,n){if(!process.env.GITHUB_STEP_SUMMARY){console.log("Reporter not being executed in Github Actions environment");return}this.cw=m.createWriteStream(process.env.GITHUB_STEP_SUMMARY,{encoding:"utf-8",flags:"a"}),this.watermarks=n.watermarks,this.cw.write("<h3>Test Coverage</h3>"),this.cw.write("<table><thead><tr>");for(let t of["File",...w,"Uncovered Lines"])this.cw.write(`<th>${t}</th>`);this.cw.write("</tr></thead><tbody>")}onSummary(e){let n=e.getRelativeName()||"All Files",t=e.getCoverageSummary(!1),r=t.isEmpty();this.skipEmpty&&r||this.skipFull&&h(t)||(this.results[n]={statements:r?0:t.statements.pct,branches:r?0:t.branches.pct,functions:r?0:t.functions.pct,lines:r?0:t.lines.pct,uncoveredLines:f(e)})}onDetail(e){return this.onSummary(e)}formatter(e,n){if(!this.watermarks)return`<td>${e}%</td>`;let[t,r]=this.watermarks[n];return e<t?`<td><p style="color:red">${e}%</p></td>`:e>r?`<td><p style="color:green">${e}%</p></td>`:`<td><p style="color:yellow">${e}%</p></td>`}onEnd(){if(!this.cw)return;let e=Object.keys(this.results).sort();for(let n of e){let t=this.results[n];if(this.cw.write(`<tr><td><code>${n}</code></td>`),this.cw.write(this.formatter(t.statements,"statements")),this.cw.write(this.formatter(t.branches,"branches")),this.cw.write(this.formatter(t.functions,"functions")),this.cw.write(this.formatter(t.lines,"lines")),t.uncoveredLines.length>0){this.cw.write("<td><details><summary>Expand</summary><ul>");for(let r of t.uncoveredLines)r.length===1?this.cw.write(`<li>${r[0]}</li>`):this.cw.write(`<li>${r[0]}-${r[1]}</li>`);this.cw.write("</ul></details></td>")}else this.cw.write("<td></td>");this.cw.write("</tr>")}this.cw.write("</tbody></table>"),this.cw.close()}};

lib/vitest-reporter/index.cts

@@ -4,9 +4,11 @@
  *
  * Heavily based on the default text reporter
  */
+import type fslib from 'fs';
 import type { CoverageSummary } from 'istanbul-lib-coverage';
 import type * as report from 'istanbul-lib-report';
 
+const fs: typeof fslib = require('fs');
 const { ReportBase }: typeof report = require('istanbul-lib-report');
 
 /**
@@ -79,15 +81,14 @@ module.exports = class GithubActionsCoverageReporter extends ReportBase {
   private readonly skipEmpty: boolean;
   private readonly skipFull: boolean;
   private readonly results: Record<string, ResultObject> = {};
-  private cw: report.ContentWriter | null = null;
-  private watermarks: report.Watermarks | null;
+  private cw: fslib.WriteStream | null = null;
+  private watermarks: report.Watermarks | null = null;
 
   constructor(opts: any) {
     super(opts);
 
     this.skipEmpty = Boolean(opts.skipEmpty);
     this.skipFull = Boolean(opts.skipFull);
-    this.watermarks = null;
   }
 
   onStart(_node: any, context: report.Context) {
@@ -96,15 +97,15 @@ module.exports = class GithubActionsCoverageReporter extends ReportBase {
       return;
     }
 
-    this.cw = context.writer.writeFile(process.env.GITHUB_STEP_SUMMARY);
+    this.cw = fs.createWriteStream(process.env.GITHUB_STEP_SUMMARY, { encoding: 'utf-8', flags: 'a' })
 
     this.watermarks = context.watermarks;
-    this.cw.println('<h3>Test Coverage</h3>')
-    this.cw.println('<table><thead><tr>');
+    this.cw.write('<h3>Test Coverage</h3>')
+    this.cw.write('<table><thead><tr>');
     for (const heading of ['File', ...headers, 'Uncovered Lines']) {
-      this.cw.println(`<th>${heading}</th>`);
+      this.cw.write(`<th>${heading}</th>`);
     }
-    this.cw.println('</tr></thead><tbody>');
+    this.cw.write('</tr></thead><tbody>');
   }
 
   onSummary(node: report.ReportNode) {
@@ -154,30 +155,30 @@ module.exports = class GithubActionsCoverageReporter extends ReportBase {
 
     for (const fileName of fileNames) {
       const metrics = this.results[fileName];
-      this.cw.println(`<tr><td><code>${fileName}</code></td>`);
-      this.cw.println(this.formatter(metrics.statements, 'statements'));
-      this.cw.println(this.formatter(metrics.branches, 'branches'));
-      this.cw.println(this.formatter(metrics.functions, 'functions'));
-      this.cw.println(this.formatter(metrics.lines, 'lines'));
+      this.cw.write(`<tr><td><code>${fileName}</code></td>`);
+      this.cw.write(this.formatter(metrics.statements, 'statements'));
+      this.cw.write(this.formatter(metrics.branches, 'branches'));
+      this.cw.write(this.formatter(metrics.functions, 'functions'));
+      this.cw.write(this.formatter(metrics.lines, 'lines'));
 
       if (metrics.uncoveredLines.length > 0) {
-        this.cw.println('<td><details><summary>Expand</summary><ul>');
+        this.cw.write('<td><details><summary>Expand</summary><ul>');
         for (const range of metrics.uncoveredLines) {
           if (range.length === 1) {
-            this.cw.println(`<li>${range[0]}</li>`)
+            this.cw.write(`<li>${range[0]}</li>`)
           } else {
-            this.cw.println(`<li>${range[0]}-${range[1]}</li>`)
+            this.cw.write(`<li>${range[0]}-${range[1]}</li>`)
           }
         }
-        this.cw.println('</ul></details></td>');
+        this.cw.write('</ul></details></td>');
       } else {
-        this.cw.println('<td></td>');
+        this.cw.write('<td></td>');
       }
 
-      this.cw.println('</tr>');
+      this.cw.write('</tr>');
     }
 
-    this.cw.println('</tbody></table>');
+    this.cw.write('</tbody></table>');
     this.cw.close();
   }
 }