diff --git a/dist/cleanup/index.js b/dist/cleanup/index.js
index d872458..3511e24 100644
--- a/dist/cleanup/index.js
+++ b/dist/cleanup/index.js
@@ -57237,314 +57237,6 @@ function isPlainObject(o) {
 exports.isPlainObject = isPlainObject;
 
 
-/***/ }),
-
-/***/ 7821:
-/***/ (function(module) {
-
-//
-// THIS FILE IS AUTOMATICALLY GENERATED! DO NOT EDIT BY HAND!
-//
-;
-(function (global, factory) {
-     true
-        ? module.exports = factory()
-        : 0;
-}((typeof self !== 'undefined' ? self
-    : typeof window !== 'undefined' ? window
-        : typeof global !== 'undefined' ? global
-            : this), function () {
-    'use strict';
-    /**
-     *  base64.ts
-     *
-     *  Licensed under the BSD 3-Clause License.
-     *    http://opensource.org/licenses/BSD-3-Clause
-     *
-     *  References:
-     *    http://en.wikipedia.org/wiki/Base64
-     *
-     * @author Dan Kogai (https://github.com/dankogai)
-     */
-    var version = '3.7.5';
-    /**
-     * @deprecated use lowercase `version`.
-     */
-    var VERSION = version;
-    var _hasatob = typeof atob === 'function';
-    var _hasbtoa = typeof btoa === 'function';
-    var _hasBuffer = typeof Buffer === 'function';
-    var _TD = typeof TextDecoder === 'function' ? new TextDecoder() : undefined;
-    var _TE = typeof TextEncoder === 'function' ? new TextEncoder() : undefined;
-    var b64ch = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
-    var b64chs = Array.prototype.slice.call(b64ch);
-    var b64tab = (function (a) {
-        var tab = {};
-        a.forEach(function (c, i) { return tab[c] = i; });
-        return tab;
-    })(b64chs);
-    var b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
-    var _fromCC = String.fromCharCode.bind(String);
-    var _U8Afrom = typeof Uint8Array.from === 'function'
-        ? Uint8Array.from.bind(Uint8Array)
-        : function (it) { return new Uint8Array(Array.prototype.slice.call(it, 0)); };
-    var _mkUriSafe = function (src) { return src
-        .replace(/=/g, '').replace(/[+\/]/g, function (m0) { return m0 == '+' ? '-' : '_'; }); };
-    var _tidyB64 = function (s) { return s.replace(/[^A-Za-z0-9\+\/]/g, ''); };
-    /**
-     * polyfill version of `btoa`
-     */
-    var btoaPolyfill = function (bin) {
-        // console.log('polyfilled');
-        var u32, c0, c1, c2, asc = '';
-        var pad = bin.length % 3;
-        for (var i = 0; i < bin.length;) {
-            if ((c0 = bin.charCodeAt(i++)) > 255 ||
-                (c1 = bin.charCodeAt(i++)) > 255 ||
-                (c2 = bin.charCodeAt(i++)) > 255)
-                throw new TypeError('invalid character found');
-            u32 = (c0 << 16) | (c1 << 8) | c2;
-            asc += b64chs[u32 >> 18 & 63]
-                + b64chs[u32 >> 12 & 63]
-                + b64chs[u32 >> 6 & 63]
-                + b64chs[u32 & 63];
-        }
-        return pad ? asc.slice(0, pad - 3) + "===".substring(pad) : asc;
-    };
-    /**
-     * does what `window.btoa` of web browsers do.
-     * @param {String} bin binary string
-     * @returns {string} Base64-encoded string
-     */
-    var _btoa = _hasbtoa ? function (bin) { return btoa(bin); }
-        : _hasBuffer ? function (bin) { return Buffer.from(bin, 'binary').toString('base64'); }
-            : btoaPolyfill;
-    var _fromUint8Array = _hasBuffer
-        ? function (u8a) { return Buffer.from(u8a).toString('base64'); }
-        : function (u8a) {
-            // cf. https://stackoverflow.com/questions/12710001/how-to-convert-uint8-array-to-base64-encoded-string/12713326#12713326
-            var maxargs = 0x1000;
-            var strs = [];
-            for (var i = 0, l = u8a.length; i < l; i += maxargs) {
-                strs.push(_fromCC.apply(null, u8a.subarray(i, i + maxargs)));
-            }
-            return _btoa(strs.join(''));
-        };
-    /**
-     * converts a Uint8Array to a Base64 string.
-     * @param {boolean} [urlsafe] URL-and-filename-safe a la RFC4648 §5
-     * @returns {string} Base64 string
-     */
-    var fromUint8Array = function (u8a, urlsafe) {
-        if (urlsafe === void 0) { urlsafe = false; }
-        return urlsafe ? _mkUriSafe(_fromUint8Array(u8a)) : _fromUint8Array(u8a);
-    };
-    // This trick is found broken https://github.com/dankogai/js-base64/issues/130
-    // const utob = (src: string) => unescape(encodeURIComponent(src));
-    // reverting good old fationed regexp
-    var cb_utob = function (c) {
-        if (c.length < 2) {
-            var cc = c.charCodeAt(0);
-            return cc < 0x80 ? c
-                : cc < 0x800 ? (_fromCC(0xc0 | (cc >>> 6))
-                    + _fromCC(0x80 | (cc & 0x3f)))
-                    : (_fromCC(0xe0 | ((cc >>> 12) & 0x0f))
-                        + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
-                        + _fromCC(0x80 | (cc & 0x3f)));
-        }
-        else {
-            var cc = 0x10000
-                + (c.charCodeAt(0) - 0xD800) * 0x400
-                + (c.charCodeAt(1) - 0xDC00);
-            return (_fromCC(0xf0 | ((cc >>> 18) & 0x07))
-                + _fromCC(0x80 | ((cc >>> 12) & 0x3f))
-                + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
-                + _fromCC(0x80 | (cc & 0x3f)));
-        }
-    };
-    var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
-    /**
-     * @deprecated should have been internal use only.
-     * @param {string} src UTF-8 string
-     * @returns {string} UTF-16 string
-     */
-    var utob = function (u) { return u.replace(re_utob, cb_utob); };
-    //
-    var _encode = _hasBuffer
-        ? function (s) { return Buffer.from(s, 'utf8').toString('base64'); }
-        : _TE
-            ? function (s) { return _fromUint8Array(_TE.encode(s)); }
-            : function (s) { return _btoa(utob(s)); };
-    /**
-     * converts a UTF-8-encoded string to a Base64 string.
-     * @param {boolean} [urlsafe] if `true` make the result URL-safe
-     * @returns {string} Base64 string
-     */
-    var encode = function (src, urlsafe) {
-        if (urlsafe === void 0) { urlsafe = false; }
-        return urlsafe
-            ? _mkUriSafe(_encode(src))
-            : _encode(src);
-    };
-    /**
-     * converts a UTF-8-encoded string to URL-safe Base64 RFC4648 §5.
-     * @returns {string} Base64 string
-     */
-    var encodeURI = function (src) { return encode(src, true); };
-    // This trick is found broken https://github.com/dankogai/js-base64/issues/130
-    // const btou = (src: string) => decodeURIComponent(escape(src));
-    // reverting good old fationed regexp
-    var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
-    var cb_btou = function (cccc) {
-        switch (cccc.length) {
-            case 4:
-                var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
-                    | ((0x3f & cccc.charCodeAt(1)) << 12)
-                    | ((0x3f & cccc.charCodeAt(2)) << 6)
-                    | (0x3f & cccc.charCodeAt(3)), offset = cp - 0x10000;
-                return (_fromCC((offset >>> 10) + 0xD800)
-                    + _fromCC((offset & 0x3FF) + 0xDC00));
-            case 3:
-                return _fromCC(((0x0f & cccc.charCodeAt(0)) << 12)
-                    | ((0x3f & cccc.charCodeAt(1)) << 6)
-                    | (0x3f & cccc.charCodeAt(2)));
-            default:
-                return _fromCC(((0x1f & cccc.charCodeAt(0)) << 6)
-                    | (0x3f & cccc.charCodeAt(1)));
-        }
-    };
-    /**
-     * @deprecated should have been internal use only.
-     * @param {string} src UTF-16 string
-     * @returns {string} UTF-8 string
-     */
-    var btou = function (b) { return b.replace(re_btou, cb_btou); };
-    /**
-     * polyfill version of `atob`
-     */
-    var atobPolyfill = function (asc) {
-        // console.log('polyfilled');
-        asc = asc.replace(/\s+/g, '');
-        if (!b64re.test(asc))
-            throw new TypeError('malformed base64.');
-        asc += '=='.slice(2 - (asc.length & 3));
-        var u24, bin = '', r1, r2;
-        for (var i = 0; i < asc.length;) {
-            u24 = b64tab[asc.charAt(i++)] << 18
-                | b64tab[asc.charAt(i++)] << 12
-                | (r1 = b64tab[asc.charAt(i++)]) << 6
-                | (r2 = b64tab[asc.charAt(i++)]);
-            bin += r1 === 64 ? _fromCC(u24 >> 16 & 255)
-                : r2 === 64 ? _fromCC(u24 >> 16 & 255, u24 >> 8 & 255)
-                    : _fromCC(u24 >> 16 & 255, u24 >> 8 & 255, u24 & 255);
-        }
-        return bin;
-    };
-    /**
-     * does what `window.atob` of web browsers do.
-     * @param {String} asc Base64-encoded string
-     * @returns {string} binary string
-     */
-    var _atob = _hasatob ? function (asc) { return atob(_tidyB64(asc)); }
-        : _hasBuffer ? function (asc) { return Buffer.from(asc, 'base64').toString('binary'); }
-            : atobPolyfill;
-    //
-    var _toUint8Array = _hasBuffer
-        ? function (a) { return _U8Afrom(Buffer.from(a, 'base64')); }
-        : function (a) { return _U8Afrom(_atob(a).split('').map(function (c) { return c.charCodeAt(0); })); };
-    /**
-     * converts a Base64 string to a Uint8Array.
-     */
-    var toUint8Array = function (a) { return _toUint8Array(_unURI(a)); };
-    //
-    var _decode = _hasBuffer
-        ? function (a) { return Buffer.from(a, 'base64').toString('utf8'); }
-        : _TD
-            ? function (a) { return _TD.decode(_toUint8Array(a)); }
-            : function (a) { return btou(_atob(a)); };
-    var _unURI = function (a) { return _tidyB64(a.replace(/[-_]/g, function (m0) { return m0 == '-' ? '+' : '/'; })); };
-    /**
-     * converts a Base64 string to a UTF-8 string.
-     * @param {String} src Base64 string.  Both normal and URL-safe are supported
-     * @returns {string} UTF-8 string
-     */
-    var decode = function (src) { return _decode(_unURI(src)); };
-    /**
-     * check if a value is a valid Base64 string
-     * @param {String} src a value to check
-      */
-    var isValid = function (src) {
-        if (typeof src !== 'string')
-            return false;
-        var s = src.replace(/\s+/g, '').replace(/={0,2}$/, '');
-        return !/[^\s0-9a-zA-Z\+/]/.test(s) || !/[^\s0-9a-zA-Z\-_]/.test(s);
-    };
-    //
-    var _noEnum = function (v) {
-        return {
-            value: v, enumerable: false, writable: true, configurable: true
-        };
-    };
-    /**
-     * extend String.prototype with relevant methods
-     */
-    var extendString = function () {
-        var _add = function (name, body) { return Object.defineProperty(String.prototype, name, _noEnum(body)); };
-        _add('fromBase64', function () { return decode(this); });
-        _add('toBase64', function (urlsafe) { return encode(this, urlsafe); });
-        _add('toBase64URI', function () { return encode(this, true); });
-        _add('toBase64URL', function () { return encode(this, true); });
-        _add('toUint8Array', function () { return toUint8Array(this); });
-    };
-    /**
-     * extend Uint8Array.prototype with relevant methods
-     */
-    var extendUint8Array = function () {
-        var _add = function (name, body) { return Object.defineProperty(Uint8Array.prototype, name, _noEnum(body)); };
-        _add('toBase64', function (urlsafe) { return fromUint8Array(this, urlsafe); });
-        _add('toBase64URI', function () { return fromUint8Array(this, true); });
-        _add('toBase64URL', function () { return fromUint8Array(this, true); });
-    };
-    /**
-     * extend Builtin prototypes with relevant methods
-     */
-    var extendBuiltins = function () {
-        extendString();
-        extendUint8Array();
-    };
-    var gBase64 = {
-        version: version,
-        VERSION: VERSION,
-        atob: _atob,
-        atobPolyfill: atobPolyfill,
-        btoa: _btoa,
-        btoaPolyfill: btoaPolyfill,
-        fromBase64: decode,
-        toBase64: encode,
-        encode: encode,
-        encodeURI: encodeURI,
-        encodeURL: encodeURI,
-        utob: utob,
-        btou: btou,
-        decode: decode,
-        isValid: isValid,
-        fromUint8Array: fromUint8Array,
-        toUint8Array: toUint8Array,
-        extendString: extendString,
-        extendUint8Array: extendUint8Array,
-        extendBuiltins: extendBuiltins
-    };
-    //
-    // export Base64 to the namespace
-    //
-    // ES5 is yet to have Object.assign() that may make transpilers unhappy.
-    // gBase64.Base64 = Object.assign({}, gBase64);
-    gBase64.Base64 = {};
-    Object.keys(gBase64).forEach(function (k) { return gBase64.Base64[k] = gBase64[k]; });
-    return gBase64;
-}));
-
-
 /***/ }),
 
 /***/ 8401:
@@ -74451,7 +74143,8 @@ function generateReports() {
                 return;
             }
             const buildOutput = JSON.parse(fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8'));
-            (0, utils_1.saveReportJson)(JSON.stringify(buildOutput));
+            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
+            yield (0, utils_1.createRef)(treeSha);
             const report = createReport(buildOutput);
             if (areJobReportsEnabled()) {
                 core.summary.addRaw(report);
@@ -74753,11 +74446,8 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.saveReportJson = exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
+exports.createTree = exports.createRef = exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
 const c = __importStar(__nccwpck_require__(2764));
 const core = __importStar(__nccwpck_require__(2258));
 const github = __importStar(__nccwpck_require__(7168));
@@ -74768,8 +74458,6 @@ const fs_1 = __nccwpck_require__(7147);
 //import {Octokit} from '@octokit/core'
 const crypto_1 = __nccwpck_require__(6113);
 const path_1 = __nccwpck_require__(1017);
-const node_fetch_1 = __importDefault(__nccwpck_require__(831));
-const js_base64_1 = __nccwpck_require__(7821);
 const rest_1 = __nccwpck_require__(6175);
 // Set up Octokit for github.com only and in the same way as @actions/github (see https://git.io/Jy9YP)
 const baseUrl = 'https://api.github.com';
@@ -74898,6 +74586,9 @@ exports.isPREvent = isPREvent;
 function getGitHubToken() {
     return core.getInput(c.INPUT_GITHUB_TOKEN);
 }
+function getCommitSha() {
+    return process.env.GITHUB_SHA || "default_tag";
+}
 function createPRComment(content) {
     var _a;
     return __awaiter(this, void 0, void 0, function* () {
@@ -74914,34 +74605,70 @@ function createPRComment(content) {
     });
 }
 exports.createPRComment = createPRComment;
-function saveReportJson(content) {
+/*export async function saveReportJson(content: string): Promise<void> {
+    const octokit = new Octokit({
+      auth: getGitHubToken(),
+      request: {
+        fetch: fetch,
+      },
+    });
+
+    const contentEncoded = Base64.encode(content)
+
+
+    const { data } = await octokit.repos.createOrUpdateFileContents({
+      owner: 'jessiscript',
+      repo: 're23_build_tracking',
+      path: 'OUTPUT.json',
+      content: contentEncoded,
+      message: 'Add Report JSON data',
+      committer: {
+        name: 'jessiscript',
+        email: 'pauljessica2001@gmail.com',
+      },
+      author:{
+        name: 'jessiscript',
+        email: 'pauljessica2001@gmail.com',
+      }
+    });
+
+    console.log(data);
+}*/
+function createRef(sha) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const commitSha = getCommitSha();
+        const ref = `refs/metrics/${commitSha}`;
+        console.log(`creating ref ${ref} for metrics tree ${sha}`);
+        const octokit = new rest_1.Octokit({
+            auth: getGitHubToken(),
+        });
+        const context = github.context;
+        const response = yield octokit.request(`POST /repos/${context.repo.owner}/${context.repo.repo}/git/refs`, Object.assign(Object.assign({}, context.repo), { ref,
+            sha }));
+        console.log(response);
+    });
+}
+exports.createRef = createRef;
+function createTree(metadataJson) {
     return __awaiter(this, void 0, void 0, function* () {
         const octokit = new rest_1.Octokit({
             auth: getGitHubToken(),
-            request: {
-                fetch: node_fetch_1.default,
-            },
         });
-        const contentEncoded = js_base64_1.Base64.encode(content);
-        const { data } = yield octokit.repos.createOrUpdateFileContents({
-            owner: 'jessiscript',
-            repo: 're23_build_tracking',
-            path: 'OUTPUT.json',
-            content: contentEncoded,
-            message: 'Add Report JSON data',
-            committer: {
-                name: 'jessiscript',
-                email: 'pauljessica2001@gmail.com',
-            },
-            author: {
-                name: 'jessiscript',
-                email: 'pauljessica2001@gmail.com',
-            }
-        });
-        console.log(data);
+        const context = github.context;
+        console.log(`creating tree at ${context.repo.owner}/${context.repo.repo}`);
+        const response = yield octokit.request(`POST /repos/${context.repo.owner}/${context.repo.repo}/git/trees`, Object.assign(Object.assign({}, context.repo), { tree: [
+                {
+                    path: "metadataJson",
+                    mode: "100644",
+                    type: "blob",
+                    content: metadataJson,
+                },
+            ] }));
+        console.log(response);
+        return response.data.sha;
     });
 }
-exports.saveReportJson = saveReportJson;
+exports.createTree = createTree;
 
 
 /***/ }),
diff --git a/dist/main/index.js b/dist/main/index.js
index 9a640e9..725ce68 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -57237,314 +57237,6 @@ function isPlainObject(o) {
 exports.isPlainObject = isPlainObject;
 
 
-/***/ }),
-
-/***/ 7821:
-/***/ (function(module) {
-
-//
-// THIS FILE IS AUTOMATICALLY GENERATED! DO NOT EDIT BY HAND!
-//
-;
-(function (global, factory) {
-     true
-        ? module.exports = factory()
-        : 0;
-}((typeof self !== 'undefined' ? self
-    : typeof window !== 'undefined' ? window
-        : typeof global !== 'undefined' ? global
-            : this), function () {
-    'use strict';
-    /**
-     *  base64.ts
-     *
-     *  Licensed under the BSD 3-Clause License.
-     *    http://opensource.org/licenses/BSD-3-Clause
-     *
-     *  References:
-     *    http://en.wikipedia.org/wiki/Base64
-     *
-     * @author Dan Kogai (https://github.com/dankogai)
-     */
-    var version = '3.7.5';
-    /**
-     * @deprecated use lowercase `version`.
-     */
-    var VERSION = version;
-    var _hasatob = typeof atob === 'function';
-    var _hasbtoa = typeof btoa === 'function';
-    var _hasBuffer = typeof Buffer === 'function';
-    var _TD = typeof TextDecoder === 'function' ? new TextDecoder() : undefined;
-    var _TE = typeof TextEncoder === 'function' ? new TextEncoder() : undefined;
-    var b64ch = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
-    var b64chs = Array.prototype.slice.call(b64ch);
-    var b64tab = (function (a) {
-        var tab = {};
-        a.forEach(function (c, i) { return tab[c] = i; });
-        return tab;
-    })(b64chs);
-    var b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
-    var _fromCC = String.fromCharCode.bind(String);
-    var _U8Afrom = typeof Uint8Array.from === 'function'
-        ? Uint8Array.from.bind(Uint8Array)
-        : function (it) { return new Uint8Array(Array.prototype.slice.call(it, 0)); };
-    var _mkUriSafe = function (src) { return src
-        .replace(/=/g, '').replace(/[+\/]/g, function (m0) { return m0 == '+' ? '-' : '_'; }); };
-    var _tidyB64 = function (s) { return s.replace(/[^A-Za-z0-9\+\/]/g, ''); };
-    /**
-     * polyfill version of `btoa`
-     */
-    var btoaPolyfill = function (bin) {
-        // console.log('polyfilled');
-        var u32, c0, c1, c2, asc = '';
-        var pad = bin.length % 3;
-        for (var i = 0; i < bin.length;) {
-            if ((c0 = bin.charCodeAt(i++)) > 255 ||
-                (c1 = bin.charCodeAt(i++)) > 255 ||
-                (c2 = bin.charCodeAt(i++)) > 255)
-                throw new TypeError('invalid character found');
-            u32 = (c0 << 16) | (c1 << 8) | c2;
-            asc += b64chs[u32 >> 18 & 63]
-                + b64chs[u32 >> 12 & 63]
-                + b64chs[u32 >> 6 & 63]
-                + b64chs[u32 & 63];
-        }
-        return pad ? asc.slice(0, pad - 3) + "===".substring(pad) : asc;
-    };
-    /**
-     * does what `window.btoa` of web browsers do.
-     * @param {String} bin binary string
-     * @returns {string} Base64-encoded string
-     */
-    var _btoa = _hasbtoa ? function (bin) { return btoa(bin); }
-        : _hasBuffer ? function (bin) { return Buffer.from(bin, 'binary').toString('base64'); }
-            : btoaPolyfill;
-    var _fromUint8Array = _hasBuffer
-        ? function (u8a) { return Buffer.from(u8a).toString('base64'); }
-        : function (u8a) {
-            // cf. https://stackoverflow.com/questions/12710001/how-to-convert-uint8-array-to-base64-encoded-string/12713326#12713326
-            var maxargs = 0x1000;
-            var strs = [];
-            for (var i = 0, l = u8a.length; i < l; i += maxargs) {
-                strs.push(_fromCC.apply(null, u8a.subarray(i, i + maxargs)));
-            }
-            return _btoa(strs.join(''));
-        };
-    /**
-     * converts a Uint8Array to a Base64 string.
-     * @param {boolean} [urlsafe] URL-and-filename-safe a la RFC4648 §5
-     * @returns {string} Base64 string
-     */
-    var fromUint8Array = function (u8a, urlsafe) {
-        if (urlsafe === void 0) { urlsafe = false; }
-        return urlsafe ? _mkUriSafe(_fromUint8Array(u8a)) : _fromUint8Array(u8a);
-    };
-    // This trick is found broken https://github.com/dankogai/js-base64/issues/130
-    // const utob = (src: string) => unescape(encodeURIComponent(src));
-    // reverting good old fationed regexp
-    var cb_utob = function (c) {
-        if (c.length < 2) {
-            var cc = c.charCodeAt(0);
-            return cc < 0x80 ? c
-                : cc < 0x800 ? (_fromCC(0xc0 | (cc >>> 6))
-                    + _fromCC(0x80 | (cc & 0x3f)))
-                    : (_fromCC(0xe0 | ((cc >>> 12) & 0x0f))
-                        + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
-                        + _fromCC(0x80 | (cc & 0x3f)));
-        }
-        else {
-            var cc = 0x10000
-                + (c.charCodeAt(0) - 0xD800) * 0x400
-                + (c.charCodeAt(1) - 0xDC00);
-            return (_fromCC(0xf0 | ((cc >>> 18) & 0x07))
-                + _fromCC(0x80 | ((cc >>> 12) & 0x3f))
-                + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
-                + _fromCC(0x80 | (cc & 0x3f)));
-        }
-    };
-    var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
-    /**
-     * @deprecated should have been internal use only.
-     * @param {string} src UTF-8 string
-     * @returns {string} UTF-16 string
-     */
-    var utob = function (u) { return u.replace(re_utob, cb_utob); };
-    //
-    var _encode = _hasBuffer
-        ? function (s) { return Buffer.from(s, 'utf8').toString('base64'); }
-        : _TE
-            ? function (s) { return _fromUint8Array(_TE.encode(s)); }
-            : function (s) { return _btoa(utob(s)); };
-    /**
-     * converts a UTF-8-encoded string to a Base64 string.
-     * @param {boolean} [urlsafe] if `true` make the result URL-safe
-     * @returns {string} Base64 string
-     */
-    var encode = function (src, urlsafe) {
-        if (urlsafe === void 0) { urlsafe = false; }
-        return urlsafe
-            ? _mkUriSafe(_encode(src))
-            : _encode(src);
-    };
-    /**
-     * converts a UTF-8-encoded string to URL-safe Base64 RFC4648 §5.
-     * @returns {string} Base64 string
-     */
-    var encodeURI = function (src) { return encode(src, true); };
-    // This trick is found broken https://github.com/dankogai/js-base64/issues/130
-    // const btou = (src: string) => decodeURIComponent(escape(src));
-    // reverting good old fationed regexp
-    var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
-    var cb_btou = function (cccc) {
-        switch (cccc.length) {
-            case 4:
-                var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
-                    | ((0x3f & cccc.charCodeAt(1)) << 12)
-                    | ((0x3f & cccc.charCodeAt(2)) << 6)
-                    | (0x3f & cccc.charCodeAt(3)), offset = cp - 0x10000;
-                return (_fromCC((offset >>> 10) + 0xD800)
-                    + _fromCC((offset & 0x3FF) + 0xDC00));
-            case 3:
-                return _fromCC(((0x0f & cccc.charCodeAt(0)) << 12)
-                    | ((0x3f & cccc.charCodeAt(1)) << 6)
-                    | (0x3f & cccc.charCodeAt(2)));
-            default:
-                return _fromCC(((0x1f & cccc.charCodeAt(0)) << 6)
-                    | (0x3f & cccc.charCodeAt(1)));
-        }
-    };
-    /**
-     * @deprecated should have been internal use only.
-     * @param {string} src UTF-16 string
-     * @returns {string} UTF-8 string
-     */
-    var btou = function (b) { return b.replace(re_btou, cb_btou); };
-    /**
-     * polyfill version of `atob`
-     */
-    var atobPolyfill = function (asc) {
-        // console.log('polyfilled');
-        asc = asc.replace(/\s+/g, '');
-        if (!b64re.test(asc))
-            throw new TypeError('malformed base64.');
-        asc += '=='.slice(2 - (asc.length & 3));
-        var u24, bin = '', r1, r2;
-        for (var i = 0; i < asc.length;) {
-            u24 = b64tab[asc.charAt(i++)] << 18
-                | b64tab[asc.charAt(i++)] << 12
-                | (r1 = b64tab[asc.charAt(i++)]) << 6
-                | (r2 = b64tab[asc.charAt(i++)]);
-            bin += r1 === 64 ? _fromCC(u24 >> 16 & 255)
-                : r2 === 64 ? _fromCC(u24 >> 16 & 255, u24 >> 8 & 255)
-                    : _fromCC(u24 >> 16 & 255, u24 >> 8 & 255, u24 & 255);
-        }
-        return bin;
-    };
-    /**
-     * does what `window.atob` of web browsers do.
-     * @param {String} asc Base64-encoded string
-     * @returns {string} binary string
-     */
-    var _atob = _hasatob ? function (asc) { return atob(_tidyB64(asc)); }
-        : _hasBuffer ? function (asc) { return Buffer.from(asc, 'base64').toString('binary'); }
-            : atobPolyfill;
-    //
-    var _toUint8Array = _hasBuffer
-        ? function (a) { return _U8Afrom(Buffer.from(a, 'base64')); }
-        : function (a) { return _U8Afrom(_atob(a).split('').map(function (c) { return c.charCodeAt(0); })); };
-    /**
-     * converts a Base64 string to a Uint8Array.
-     */
-    var toUint8Array = function (a) { return _toUint8Array(_unURI(a)); };
-    //
-    var _decode = _hasBuffer
-        ? function (a) { return Buffer.from(a, 'base64').toString('utf8'); }
-        : _TD
-            ? function (a) { return _TD.decode(_toUint8Array(a)); }
-            : function (a) { return btou(_atob(a)); };
-    var _unURI = function (a) { return _tidyB64(a.replace(/[-_]/g, function (m0) { return m0 == '-' ? '+' : '/'; })); };
-    /**
-     * converts a Base64 string to a UTF-8 string.
-     * @param {String} src Base64 string.  Both normal and URL-safe are supported
-     * @returns {string} UTF-8 string
-     */
-    var decode = function (src) { return _decode(_unURI(src)); };
-    /**
-     * check if a value is a valid Base64 string
-     * @param {String} src a value to check
-      */
-    var isValid = function (src) {
-        if (typeof src !== 'string')
-            return false;
-        var s = src.replace(/\s+/g, '').replace(/={0,2}$/, '');
-        return !/[^\s0-9a-zA-Z\+/]/.test(s) || !/[^\s0-9a-zA-Z\-_]/.test(s);
-    };
-    //
-    var _noEnum = function (v) {
-        return {
-            value: v, enumerable: false, writable: true, configurable: true
-        };
-    };
-    /**
-     * extend String.prototype with relevant methods
-     */
-    var extendString = function () {
-        var _add = function (name, body) { return Object.defineProperty(String.prototype, name, _noEnum(body)); };
-        _add('fromBase64', function () { return decode(this); });
-        _add('toBase64', function (urlsafe) { return encode(this, urlsafe); });
-        _add('toBase64URI', function () { return encode(this, true); });
-        _add('toBase64URL', function () { return encode(this, true); });
-        _add('toUint8Array', function () { return toUint8Array(this); });
-    };
-    /**
-     * extend Uint8Array.prototype with relevant methods
-     */
-    var extendUint8Array = function () {
-        var _add = function (name, body) { return Object.defineProperty(Uint8Array.prototype, name, _noEnum(body)); };
-        _add('toBase64', function (urlsafe) { return fromUint8Array(this, urlsafe); });
-        _add('toBase64URI', function () { return fromUint8Array(this, true); });
-        _add('toBase64URL', function () { return fromUint8Array(this, true); });
-    };
-    /**
-     * extend Builtin prototypes with relevant methods
-     */
-    var extendBuiltins = function () {
-        extendString();
-        extendUint8Array();
-    };
-    var gBase64 = {
-        version: version,
-        VERSION: VERSION,
-        atob: _atob,
-        atobPolyfill: atobPolyfill,
-        btoa: _btoa,
-        btoaPolyfill: btoaPolyfill,
-        fromBase64: decode,
-        toBase64: encode,
-        encode: encode,
-        encodeURI: encodeURI,
-        encodeURL: encodeURI,
-        utob: utob,
-        btou: btou,
-        decode: decode,
-        isValid: isValid,
-        fromUint8Array: fromUint8Array,
-        toUint8Array: toUint8Array,
-        extendString: extendString,
-        extendUint8Array: extendUint8Array,
-        extendBuiltins: extendBuiltins
-    };
-    //
-    // export Base64 to the namespace
-    //
-    // ES5 is yet to have Object.assign() that may make transpilers unhappy.
-    // gBase64.Base64 = Object.assign({}, gBase64);
-    gBase64.Base64 = {};
-    Object.keys(gBase64).forEach(function (k) { return gBase64.Base64[k] = gBase64[k]; });
-    return gBase64;
-}));
-
-
 /***/ }),
 
 /***/ 8401:
@@ -74550,7 +74242,8 @@ function generateReports() {
                 return;
             }
             const buildOutput = JSON.parse(fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8'));
-            (0, utils_1.saveReportJson)(JSON.stringify(buildOutput));
+            const treeSha = yield (0, utils_1.createTree)(JSON.stringify(buildOutput));
+            yield (0, utils_1.createRef)(treeSha);
             const report = createReport(buildOutput);
             if (areJobReportsEnabled()) {
                 core.summary.addRaw(report);
@@ -75750,11 +75443,8 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.saveReportJson = exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
+exports.createTree = exports.createRef = exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
 const c = __importStar(__nccwpck_require__(2764));
 const core = __importStar(__nccwpck_require__(2258));
 const github = __importStar(__nccwpck_require__(7168));
@@ -75765,8 +75455,6 @@ const fs_1 = __nccwpck_require__(7147);
 //import {Octokit} from '@octokit/core'
 const crypto_1 = __nccwpck_require__(6113);
 const path_1 = __nccwpck_require__(1017);
-const node_fetch_1 = __importDefault(__nccwpck_require__(831));
-const js_base64_1 = __nccwpck_require__(7821);
 const rest_1 = __nccwpck_require__(6175);
 // Set up Octokit for github.com only and in the same way as @actions/github (see https://git.io/Jy9YP)
 const baseUrl = 'https://api.github.com';
@@ -75895,6 +75583,9 @@ exports.isPREvent = isPREvent;
 function getGitHubToken() {
     return core.getInput(c.INPUT_GITHUB_TOKEN);
 }
+function getCommitSha() {
+    return process.env.GITHUB_SHA || "default_tag";
+}
 function createPRComment(content) {
     var _a;
     return __awaiter(this, void 0, void 0, function* () {
@@ -75911,34 +75602,70 @@ function createPRComment(content) {
     });
 }
 exports.createPRComment = createPRComment;
-function saveReportJson(content) {
+/*export async function saveReportJson(content: string): Promise<void> {
+    const octokit = new Octokit({
+      auth: getGitHubToken(),
+      request: {
+        fetch: fetch,
+      },
+    });
+
+    const contentEncoded = Base64.encode(content)
+
+
+    const { data } = await octokit.repos.createOrUpdateFileContents({
+      owner: 'jessiscript',
+      repo: 're23_build_tracking',
+      path: 'OUTPUT.json',
+      content: contentEncoded,
+      message: 'Add Report JSON data',
+      committer: {
+        name: 'jessiscript',
+        email: 'pauljessica2001@gmail.com',
+      },
+      author:{
+        name: 'jessiscript',
+        email: 'pauljessica2001@gmail.com',
+      }
+    });
+
+    console.log(data);
+}*/
+function createRef(sha) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const commitSha = getCommitSha();
+        const ref = `refs/metrics/${commitSha}`;
+        console.log(`creating ref ${ref} for metrics tree ${sha}`);
+        const octokit = new rest_1.Octokit({
+            auth: getGitHubToken(),
+        });
+        const context = github.context;
+        const response = yield octokit.request(`POST /repos/${context.repo.owner}/${context.repo.repo}/git/refs`, Object.assign(Object.assign({}, context.repo), { ref,
+            sha }));
+        console.log(response);
+    });
+}
+exports.createRef = createRef;
+function createTree(metadataJson) {
     return __awaiter(this, void 0, void 0, function* () {
         const octokit = new rest_1.Octokit({
             auth: getGitHubToken(),
-            request: {
-                fetch: node_fetch_1.default,
-            },
         });
-        const contentEncoded = js_base64_1.Base64.encode(content);
-        const { data } = yield octokit.repos.createOrUpdateFileContents({
-            owner: 'jessiscript',
-            repo: 're23_build_tracking',
-            path: 'OUTPUT.json',
-            content: contentEncoded,
-            message: 'Add Report JSON data',
-            committer: {
-                name: 'jessiscript',
-                email: 'pauljessica2001@gmail.com',
-            },
-            author: {
-                name: 'jessiscript',
-                email: 'pauljessica2001@gmail.com',
-            }
-        });
-        console.log(data);
+        const context = github.context;
+        console.log(`creating tree at ${context.repo.owner}/${context.repo.repo}`);
+        const response = yield octokit.request(`POST /repos/${context.repo.owner}/${context.repo.repo}/git/trees`, Object.assign(Object.assign({}, context.repo), { tree: [
+                {
+                    path: "metadataJson",
+                    mode: "100644",
+                    type: "blob",
+                    content: metadataJson,
+                },
+            ] }));
+        console.log(response);
+        return response.data.sha;
     });
 }
-exports.saveReportJson = saveReportJson;
+exports.createTree = createTree;
 
 
 /***/ }),
diff --git a/src/features/reports.ts b/src/features/reports.ts
index 8ce4b8e..9a80ecb 100644
--- a/src/features/reports.ts
+++ b/src/features/reports.ts
@@ -4,7 +4,7 @@ import * as fs from 'fs'
 import * as github from '@actions/github'
 import {join} from 'path'
 import {tmpdir} from 'os'
-import {createPRComment, isPREvent, saveReportJson, toSemVer} from '../utils'
+import {createPRComment, createRef, createTree, isPREvent, toSemVer} from '../utils'
 import {gte} from 'semver'
 import {Base64} from 'js-base64';
 import { Octokit } from '@octokit/rest';
@@ -134,7 +134,8 @@ export async function generateReports(): Promise<void> {
         fs.readFileSync(BUILD_OUTPUT_JSON_PATH, 'utf8')
     )
 
-    saveReportJson(JSON.stringify(buildOutput))
+    const treeSha = await createTree(JSON.stringify(buildOutput))
+    await createRef(treeSha)
 
     const report = createReport(buildOutput)
     if (areJobReportsEnabled()) {
diff --git a/src/utils.ts b/src/utils.ts
index dd4b455..a29016a 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -159,6 +159,10 @@ function getGitHubToken(): string {
   return core.getInput(c.INPUT_GITHUB_TOKEN)
 }
 
+function getCommitSha(): string {
+    return process.env.GITHUB_SHA || "default_tag"
+}
+
 export async function createPRComment(content: string): Promise<void> {
   if (!isPREvent()) {
     throw new Error('Not a PR event.')
@@ -177,7 +181,7 @@ export async function createPRComment(content: string): Promise<void> {
   }
 }
 
-export async function saveReportJson(content: string): Promise<void> {
+/*export async function saveReportJson(content: string): Promise<void> {
     const octokit = new Octokit({
       auth: getGitHubToken(),
       request: {
@@ -205,4 +209,52 @@ export async function saveReportJson(content: string): Promise<void> {
     });
 
     console.log(data);
+}*/
+
+export async function createRef(sha: string) {
+    const commitSha = getCommitSha()
+    const ref = `refs/metrics/${commitSha}`
+    console.log(`creating ref ${ref} for metrics tree ${sha}`);
+    const octokit = new Octokit({
+        auth: getGitHubToken(),
+    });
+    const context = github.context
+
+    const response = await octokit.request(
+        `POST /repos/${context.repo.owner}/${context.repo.repo}/git/refs`,
+        {
+            ...context.repo,
+            ref,
+            sha,
+        }
+    );
+
+    console.log(response);
+}
+
+export async function createTree(metadataJson: string): Promise<string> {
+    const octokit = new Octokit({
+        auth: getGitHubToken(),
+    });
+    const context = github.context
+
+    console.log(`creating tree at ${context.repo.owner}/${context.repo.repo}`);
+
+    const response = await octokit.request(
+        `POST /repos/${context.repo.owner}/${context.repo.repo}/git/trees`,
+        {
+            ...context.repo,
+            tree: [
+                {
+                    path: "metadataJson",
+                    mode: "100644",
+                    type: "blob",
+                    content: metadataJson,
+                },
+            ],
+        }
+    );
+
+    console.log(response);
+    return response.data.sha;
 }