first commit

.gitignore

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+# Mac
+.DS_Store
+
+# node
+*.log
+node_modules
+
+# IDE
+.idea
+.vscode
+
+# project
+build

.npmignore

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+# Mac
+.DS_Store
+
+# node
+*.log
+node_modules
+
+# IDE
+.idea
+.vscode
+
+# project
+build

bin/bsdp

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+#!/usr/bin/env node
+
+const program = require('commander');
+const bsdp = require('../index');
+
+program
+  .version(require('../package').version, '-v, --version')
+  .usage('<command> [old] [new] [patch]');
+
+program
+  .command('diff [old] [new] [patch]')  
+  .description('make a diff between an old file and a new file, and generate a patch')  
+
+program
+  .command('patch [old] [new] [patch]')
+  .description('apply a patch to an old file and generate a new file'); 
+
+program
+  .arguments('<cmd> [old] [new] [patch]')  
+  .action((cmd, oldFile, newFile, patchFile) => {
+    if(cmd !== 'diff' && cmd !== 'patch') {
+      console.log('invalid command');
+      return;
+    }
+
+    if(!oldFile) {
+      console.log('old file is not specified');
+      return;
+    }
+
+    if(!newFile) {
+      console.log('new file is not specified');
+      return;
+    }
+
+    if(!patchFile) {
+      console.log('patch file is not specified');
+      return;
+    }
+
+    bsdp[cmd](oldFile, newFile, patchFile);
+  });
+
+program.parse(process.argv);
+
+const args = program.args;
+
+if(args.length <= 0) {
+  program.help();
+}

binding.gyp

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+{
+  "targets": [
+    {
+      "target_name": "bsdiff",
+      "sources": [
+        "src/main.cc",
+        "src/bsdiff/bsdiff.c",
+        "src/bspatch/bspatch.c",
+        "src/bzip2/bzlib.c",
+        "src/bzip2/compress.c",
+        "src/bzip2/crctable.c",
+        "src/bzip2/randtable.c",
+        "src/bzip2/blocksort.c",
+        "src/bzip2/huffman.c",
+        "src/bzip2/decompress.c"
+      ],      
+      "include_dirs": [
+        "include", "./src/bzip2"
+      ]      
+    }
+  ]
+}

index.js

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+const bsdiff = require('./build/Release/bsdiff.node');
+
+module.exports = bsdiff;

package.json

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+{
+  "name": "bsdp",
+  "version": "1.0.0",
+  "description": "An binary diff&patch library based on bsdiff algorithm(v4.3)",
+  "bin": {
+    "bsdp": "./bin/bsdp"
+  },
+  "main": "index.js",
+  "dependencies": {
+    "commander": "^2.11.0"
+  },
+  "devDependencies": {
+    "mocha": "^3.4.2"
+  },
+  "scripts": {
+    "test": "mocha",
+    "install": "node-gyp rebuild"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/tsyeyuanfeng/bsdp.git"
+  },
+  "keywords": [
+    "bsdiff",
+    "bspatch",
+    "binary",
+    "diff",
+    "binary",
+    "patch"
+  ],
+  "author": "Yaphet Ye <tsyeyuanfeng@126.com>",
+  "license": "MIT",
+  "gypfile": true,
+  "bugs": {
+    "url": "https://github.com/tsyeyuanfeng/bsdp/issues"
+  },
+  "homepage": "https://github.com/tsyeyuanfeng/bsdp#readme"
+}