Replace 'read-last-lines' with 'n-readlines'

read-last-lines had trouble reading lines

dist/package.json

@@ -33,12 +33,13 @@
     "@actions/core": "^1.2.6",
     "async": "^3.2.0",
     "fs-extra": "^9.0.1",
-    "read-last-lines": "^1.7.2"
+    "n-readlines": "^1.0.1"
   },
   "devDependencies": {
     "@tsconfig/node12": "^1.0.7",
     "@types/async": "^3.2.4",
     "@types/fs-extra": "^9.0.4",
+    "@types/n-readlines": "^1.0.1",
     "@types/node": "~12.19.6",
     "@vercel/ncc": "^0.25.1",
     "ts-node": "^9.0.0",

package-lock.json

@@ -30,6 +30,15 @@
         "@types/node": "*"
       }
     },
+    "@types/n-readlines": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@types/n-readlines/-/n-readlines-1.0.1.tgz",
+      "integrity": "sha512-n1ND4k+9hgtil2HnHK+1tIj1UWchsD+RwoH7eVQqLbUe8AxwLuqDEnx3Riq+twHoMTjP80Q/ilB3LGdyXKfTEg==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/node": {
       "version": "12.19.6",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.6.tgz",
@@ -42,11 +51,6 @@
       "integrity": "sha512-dGecC5+1wLof1MQpey4+6i2KZv4Sfs6WfXkl9KfO32GED4ZPiKxRfvtGPjbjZv0IbqMl6CxtcV1RotXYfd5SSA==",
       "dev": true
     },
-    "any-promise": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
-      "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
-    },
     "arg": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz",
@@ -113,28 +117,10 @@
       "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
       "dev": true
     },
-    "mz": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/mz/-/mz-2.7.0.tgz",
-      "integrity": "sha512-z81GNO7nnYMEhrGh9LeymoE4+Yr0Wn5McHIZMK5cfQCl+NDX08sCZgUc9/6MHni9IWuFLm1Z3HTCXu2z9fN62Q==",
-      "requires": {
-        "any-promise": "^1.0.0",
-        "object-assign": "^4.0.1",
-        "thenify-all": "^1.0.0"
-      }
-    },
-    "object-assign": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
-      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
-    },
-    "read-last-lines": {
-      "version": "1.7.2",
-      "resolved": "https://registry.npmjs.org/read-last-lines/-/read-last-lines-1.7.2.tgz",
-      "integrity": "sha512-K0yUvTYAYn6qpyLJufaJ7yC6BeL23qpgZ8SKM7/fA1R1rHotCDxB/zDp9i1I2JHvexWBW6/35jkt07iiIKKp4g==",
-      "requires": {
-        "mz": "^2.7.0"
-      }
+    "n-readlines": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/n-readlines/-/n-readlines-1.0.1.tgz",
+      "integrity": "sha512-z4SyAIVgMy7CkgsoNw7YVz40v0g4+WWvvqy8+ZdHrCtgevcEO758WQyrYcw3XPxcLxF+//RszTz/rO48nzD0wQ=="
     },
     "source-map": {
       "version": "0.6.1",
@@ -152,22 +138,6 @@
         "source-map": "^0.6.0"
       }
     },
-    "thenify": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
-      "integrity": "sha512-RVZSIV5IG10Hk3enotrhvz0T9em6cyHBLkH/YAZuKqd8hRkKhSfCGIcP2KUY0EPxndzANBmNllzWPwak+bheSw==",
-      "requires": {
-        "any-promise": "^1.0.0"
-      }
-    },
-    "thenify-all": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/thenify-all/-/thenify-all-1.6.0.tgz",
-      "integrity": "sha1-GhkY1ALY/D+Y+/I02wvMjMEOlyY=",
-      "requires": {
-        "thenify": ">= 3.1.0 < 4"
-      }
-    },
     "ts-node": {
       "version": "9.0.0",
       "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-9.0.0.tgz",

package.json

@@ -33,12 +33,13 @@
     "@actions/core": "^1.2.6",
     "async": "^3.2.0",
     "fs-extra": "^9.0.1",
-    "read-last-lines": "^1.7.2"
+    "n-readlines": "^1.0.1"
   },
   "devDependencies": {
     "@tsconfig/node12": "^1.0.7",
     "@types/async": "^3.2.4",
     "@types/fs-extra": "^9.0.4",
+    "@types/n-readlines": "^1.0.1",
     "@types/node": "~12.19.6",
     "@vercel/ncc": "^0.25.1",
     "ts-node": "^9.0.0",

src/index.ts

@@ -4,9 +4,7 @@ import { copy } from 'fs-extra';
 import { rmdirSync } from 'fs';
 import { parallelLimit } from 'async';
 
-import { cpuCount, downloadFile, exit, fixArgArr, isNumeric, resetWorkingDir, runCmd } from './utils';
-
-const rll = require('read-last-lines');
+import { cpuCount, downloadFile, exit, fixArgArr, isNumeric, readLastLines, resetWorkingDir, runCmd } from './utils';
 
 const supportedBuildTools: { [key: string]: { url: string, prepareArgs: string[] } } = {
   spraxdev: {
@@ -66,7 +64,7 @@ async function run(): Promise<{ code: number, msg?: string }> {
           console.error(err);
 
           console.error(`\nPrinting last 25 lines from '${resolvePath(appLogFile)}':`);
-          for (const line of (await rll.read(appLogFile, 25))) {
+          for (const line of readLastLines(appLogFile, 25)) {
             console.error(line);
           }
 
@@ -122,14 +120,12 @@ async function run(): Promise<{ code: number, msg?: string }> {
               console.error(err);
 
               console.error(`\nPrinting last 25 lines from '${resolvePath(logFile)}':`);
-              rll.read(logFile, 25)
-                  .then((lines: string[]) => {
-                    for (const line of lines) {
-                      console.error(line);
-                    }
-                  })
-                  .catch(console.error)
-                  .finally(() => rejectTask(err));
+
+              for (const line of readLastLines(logFile, 25)) {
+                console.error(line);
+              }
+
+              rejectTask(err);
             }
           });
         });

src/utils.ts

@@ -4,6 +4,7 @@ import { get as httpGet } from 'http';
 import { get as httpsGet } from 'https';
 import { cpus, tmpdir } from 'os';
 import { createWriteStream, mkdirSync, readFileSync, rmdirSync, WriteStream } from 'fs';
+import readLines from 'n-readlines';
 
 const packageJson = JSON.parse(readFileSync(joinPath(__dirname, '..', 'package.json'), 'utf-8'));
 const userAgent = `${packageJson.name || 'Action-SpigotMC'}/${packageJson.version || 'UNKNOWN_VERSION'} (+${packageJson.homepage || 'https://github.com/SpraxDev/'})`;
@@ -127,6 +128,23 @@ export async function downloadFile(url: string, dest: string, currRedirectDepth:
   });
 }
 
+export function readLastLines(file: string, lineCount: number, encoding: string = 'utf-8'): string[] {
+  const result = [];
+
+  const reader = new readLines(file);
+
+  let line;
+  while (line = reader.next()) {
+    result.push(line.toString(encoding));
+
+    if (result.length > lineCount) {
+      result.shift();
+    }
+  }
+
+  return result;
+}
+
 export function resetWorkingDir(): { base: string, cache: string, logs: string } {
   const baseDir = joinPath(tmpdir(), 'SpraxDev-Action-SpigotMC');
   const cacheDir = joinPath(baseDir, 'cache');