diff --git a/.github/workflows/check-dist.yml b/.github/workflows/check-dist.yml
index b69fad5..46f30a2 100644
--- a/.github/workflows/check-dist.yml
+++ b/.github/workflows/check-dist.yml
@@ -27,6 +27,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: remove js files in dist/
+        run: find dist/ -type f \( -name "*.json" -o -name "*.js" -o -name "*.js.map" \) -delete
       - name: Setup Node 16.x
         uses: actions/setup-node@v3
         with:
diff --git a/dist/lib/checksum.js b/dist/lib/checksum.js
deleted file mode 100644
index afde702..0000000
--- a/dist/lib/checksum.js
+++ /dev/null
@@ -1,52 +0,0 @@
-"use strict";
-// Copyright The ORAS Authors.
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    var desc = Object.getOwnPropertyDescriptor(m, k);
-    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
-      desc = { enumerable: true, get: function() { return m[k]; } };
-    }
-    Object.defineProperty(o, k2, desc);
-}) : (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    o[k2] = m[k];
-}));
-var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
-    Object.defineProperty(o, "default", { enumerable: true, value: v });
-}) : function(o, v) {
-    o["default"] = v;
-});
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
-    __setModuleDefault(result, mod);
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.hash = void 0;
-const crypto = __importStar(require("crypto"));
-const fs = __importStar(require("fs"));
-// hash computes SH256 of file at path.
-function hash(path) {
-    return new Promise((resolve, reject) => {
-        const hash = crypto.createHash('sha256');
-        const stream = fs.createReadStream(path);
-        stream.on('error', err => reject(err));
-        stream.on('data', chunk => hash.update(chunk));
-        stream.on('end', () => resolve(hash.digest('hex')));
-    });
-}
-exports.hash = hash;
-//# sourceMappingURL=checksum.js.map
\ No newline at end of file
diff --git a/dist/lib/checksum.js.map b/dist/lib/checksum.js.map
deleted file mode 100644
index dd12da3..0000000
--- a/dist/lib/checksum.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"file":"checksum.js","sourceRoot":"","sources":["../../src/lib/checksum.ts"],"names":[],"mappings":";AAAA,8BAA8B;AAC9B,kEAAkE;AAClE,mEAAmE;AACnE,0CAA0C;AAC1C,EAAE;AACF,6CAA6C;AAC7C,EAAE;AACF,sEAAsE;AACtE,oEAAoE;AACpE,2EAA2E;AAC3E,sEAAsE;AACtE,iCAAiC;;;;;;;;;;;;;;;;;;;;;;;;;;AAEjC,+CAAiC;AACjC,uCAAyB;AAEzB,uCAAuC;AACvC,SAAgB,IAAI,CAAC,IAAY;IAC7B,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;QACnC,MAAM,IAAI,GAAG,MAAM,CAAC,UAAU,CAAC,QAAQ,CAAC,CAAC;QACzC,MAAM,MAAM,GAAG,EAAE,CAAC,gBAAgB,CAAC,IAAI,CAAC,CAAC;QACzC,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,GAAG,CAAC,EAAE,CAAC,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC;QACvC,MAAM,CAAC,EAAE,CAAC,MAAM,EAAE,KAAK,CAAC,EAAE,CAAC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC;QAC/C,MAAM,CAAC,EAAE,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,OAAO,CAAC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;IACxD,CAAC,CAAC,CAAC;AACP,CAAC;AARD,oBAQC"}
\ No newline at end of file
diff --git a/dist/lib/data/releases.json b/dist/lib/data/releases.json
deleted file mode 100644
index f13ac12..0000000
--- a/dist/lib/data/releases.json
+++ /dev/null
@@ -1,74 +0,0 @@
-{
-    "1.0.1": {
-        "darwin": {
-            "amd64": {
-                "checksum": "34f11536dc191f9ad4288649f97ef69b478548f891c932c9732307f064ed3331",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_darwin_amd64.tar.gz"
-            },
-            "arm64": {
-                "checksum": "faa0181799f0e0295d7df188441a1f8869da78a50da4cf7fb03cf35dc746b178",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_darwin_arm64.tar.gz"
-            }
-        },
-        "linux": {
-            "amd64": {
-                "checksum": "6b51b87360d373dd3c19b91d2627d2efd320513380a878b6f06702f72fe8c5ab",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_amd64.tar.gz"
-            },
-            "arm64": {
-                "checksum": "ae1884ae17b7ae7ce694c63d51a52ab0dac1f2c0ca384163455c1e96c5663db0",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_arm64.tar.gz"
-            },
-            "armv7": {
-                "checksum": "f31bc8eab3ed2f368056df3eb5761f40d90dfbd8272bec58d83961f41ebbf3fb",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_armv7.tar.gz"
-            },
-            "s390x": {
-                "checksum": "2a63313a99dd45c448c022a303941e1f5b47b8fdf3493c593b026de384a284b6",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_s390x.tar.gz"
-            }
-        },
-        "windows": {
-            "amd64": {
-                "checksum": "0b9c50eda7aa384d435b31710264d08c77a5e83ee6560ee6e13ca46a6acec1ba",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_windows_amd64.zip"
-            }
-        }
-    },
-    "1.1.0": {
-        "darwin": {
-            "amd64": {
-                "checksum": "f8ac5dea53dd9331cf080f1025f0612e7b07c5af864a4fd609f97d8946508e45",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_darwin_amd64.tar.gz"
-            },
-            "arm64": {
-                "checksum": "d52d3140b0bb9f7d7e31dcbf2a513f971413769c11f7d7a5599e76cc98e45007",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_darwin_arm64.tar.gz"
-            }
-        },
-        "linux": {
-            "amd64": {
-                "checksum": "e09e85323b24ccc8209a1506f142e3d481e6e809018537c6b3db979c891e6ad7",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_amd64.tar.gz"
-            },
-            "arm64": {
-                "checksum": "e450b081f67f6fda2f16b7046075c67c9a53f3fda92fd20ecc59873b10477ab4",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_arm64.tar.gz"
-            },
-            "armv7": {
-                "checksum": "def86e7f787f8deee50bb57d1c155201099f36aa0c6700d3b525e69ddf8ae49b",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_armv7.tar.gz"
-            },
-            "s390x": {
-                "checksum": "067600d61d5d7c23f7bd184cff168ad558d48bed99f6735615bce0e1068b1d77",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_linux_s390x.tar.gz"
-            }
-        },
-        "windows": {
-            "amd64": {
-                "checksum": "2ac83631181d888445e50784a5f760f7f9d97fba3c089e79b68580c496fe68cf",
-                "url": "https://github.com/oras-project/oras/releases/download/v1.0.1/oras_1.0.1_windows_amd64.zip"
-            }
-        }
-    }
-}
diff --git a/dist/lib/release.js b/dist/lib/release.js
deleted file mode 100644
index 78bc360..0000000
--- a/dist/lib/release.js
+++ /dev/null
@@ -1,99 +0,0 @@
-"use strict";
-// Copyright The ORAS Authors.
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    var desc = Object.getOwnPropertyDescriptor(m, k);
-    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
-      desc = { enumerable: true, get: function() { return m[k]; } };
-    }
-    Object.defineProperty(o, k2, desc);
-}) : (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    o[k2] = m[k];
-}));
-var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
-    Object.defineProperty(o, "default", { enumerable: true, value: v });
-}) : function(o, v) {
-    o["default"] = v;
-});
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
-    __setModuleDefault(result, mod);
-    return result;
-};
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.getBinaryExtension = exports.mapArch = exports.mapPlatform = exports.getReleaseInfo = void 0;
-const os = __importStar(require("os"));
-const releases_json_1 = __importDefault(require("./data/releases.json"));
-// Get release info of a certain verion of ORAS CLI
-function getReleaseInfo(version) {
-    const releases = releases_json_1.default;
-    if (!(version in releases)) {
-        console.log(`official ORAS CLI releases does not contain version ${version}`);
-        throw new Error(`official ORAS CLI releases does not contain version ${version}`);
-    }
-    const platform = mapPlatform();
-    const arch = mapArch();
-    const download = releases[version][platform][arch];
-    if (!download) {
-        throw new Error(`official ORAS CLI releases does not contain version ${version}, platform ${platform}, arch ${arch} is not supported`);
-    }
-    return download;
-}
-exports.getReleaseInfo = getReleaseInfo;
-// getPlatform maps os.platform() to ORAS supported platforms.
-function mapPlatform() {
-    const platform = os.platform();
-    switch (platform) {
-        case 'linux':
-            return 'linux';
-        case 'darwin':
-            return 'darwin';
-        case 'win32':
-            return 'windows';
-        default:
-            throw new Error(`unsupported platform: ${platform}`);
-    }
-}
-exports.mapPlatform = mapPlatform;
-// mapArch maps os.arch() to ORAS supported architectures.
-function mapArch() {
-    const architecture = os.arch();
-    switch (architecture) {
-        case 'x64':
-            return 'amd64';
-        case 'arm64':
-            return 'arm64';
-        case 'arm64':
-            return 'arm64';
-        case 's390':
-            return 's390x';
-        case 'arm':
-            return 'armv7';
-        default:
-            throw new Error(`unsupported architecture: ${architecture}`);
-    }
-}
-exports.mapArch = mapArch;
-function getBinaryExtension() {
-    const platform = mapPlatform();
-    return platform === 'windows' ? '.exe' : '';
-}
-exports.getBinaryExtension = getBinaryExtension;
-//# sourceMappingURL=release.js.map
\ No newline at end of file
diff --git a/dist/lib/release.js.map b/dist/lib/release.js.map
deleted file mode 100644
index 2652fe1..0000000
--- a/dist/lib/release.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"file":"release.js","sourceRoot":"","sources":["../../src/lib/release.ts"],"names":[],"mappings":";AAAA,8BAA8B;AAC9B,kEAAkE;AAClE,mEAAmE;AACnE,0CAA0C;AAC1C,EAAE;AACF,6CAA6C;AAC7C,EAAE;AACF,sEAAsE;AACtE,oEAAoE;AACpE,2EAA2E;AAC3E,sEAAsE;AACtE,iCAAiC;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAEjC,uCAAyB;AACzB,yEAA+C;AAc/C,mDAAmD;AACnD,SAAgB,cAAc,CAAC,OAAe;IAC1C,MAAM,QAAQ,GAAG,uBAAuB,CAAC;IACzC,IAAI,CAAC,CAAC,OAAO,IAAI,QAAQ,CAAC,EAAE;QACxB,OAAO,CAAC,GAAG,CAAC,uDAAuD,OAAO,EAAE,CAAC,CAAA;QAC7E,MAAM,IAAI,KAAK,CAAC,uDAAuD,OAAO,EAAE,CAAC,CAAC;KACrF;IAED,MAAM,QAAQ,GAAG,WAAW,EAAE,CAAC;IAC/B,MAAM,IAAI,GAAG,OAAO,EAAE,CAAC;IACvB,MAAM,QAAQ,GAAG,QAAQ,CAAC,OAAO,CAAC,CAAC,QAAQ,CAAC,CAAC,IAAI,CAAC,CAAC;IACnD,IAAI,CAAC,QAAQ,EAAE;QACX,MAAM,IAAI,KAAK,CAAC,uDAAuD,OAAO,cAAc,QAAQ,UAAU,IAAI,mBAAmB,CAAC,CAAC;KAC1I;IACD,OAAO,QAAQ,CAAC;AACpB,CAAC;AAdD,wCAcC;AAGD,8DAA8D;AAC9D,SAAgB,WAAW;IACvB,MAAM,QAAQ,GAAW,EAAE,CAAC,QAAQ,EAAE,CAAC;IACvC,QAAQ,QAAQ,EAAE;QACd,KAAK,OAAO;YACR,OAAO,OAAO,CAAC;QACnB,KAAK,QAAQ;YACT,OAAO,QAAQ,CAAC;QACpB,KAAK,OAAO;YACR,OAAO,SAAS,CAAC;QACrB;YACI,MAAM,IAAI,KAAK,CAAC,yBAAyB,QAAQ,EAAE,CAAC,CAAC;KAC5D;AACL,CAAC;AAZD,kCAYC;AAED,0DAA0D;AAC1D,SAAgB,OAAO;IACnB,MAAM,YAAY,GAAW,EAAE,CAAC,IAAI,EAAE,CAAC;IACvC,QAAQ,YAAY,EAAE;QAClB,KAAK,KAAK;YACN,OAAO,OAAO,CAAC;QACnB,KAAK,OAAO;YACR,OAAO,OAAO,CAAC;QACnB,KAAK,OAAO;YACJ,OAAO,OAAO,CAAC;QACvB,KAAK,MAAM;YACP,OAAO,OAAO,CAAC;QACnB,KAAK,KAAK;YACN,OAAO,OAAO,CAAC;QACnB;YACI,MAAM,IAAI,KAAK,CAAC,6BAA6B,YAAY,EAAE,CAAC,CAAC;KACpE;AACL,CAAC;AAhBD,0BAgBC;AAED,SAAgB,kBAAkB;IAC9B,MAAM,QAAQ,GAAG,WAAW,EAAE,CAAC;IAC/B,OAAO,QAAQ,KAAK,SAAS,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC;AAChD,CAAC;AAHD,gDAGC"}
\ No newline at end of file