[ci-app] remove git-repo-info dependency

* copy index.js from repository and adjust
* add file to eslintignore

Author: juan-fernandez

.eslintignore

@@ -6,3 +6,4 @@ node_modules
 protobuf
 versions
 acmeair-nodejs
+packages/dd-trace/src/plugins/util/git-repo-info.js

package.json

@@ -54,7 +54,6 @@
     "@types/node": "^10.12.18",
     "axios": "^0.21.1",
     "form-data": "^3.0.0",
-    "git-repo-info": "^2.1.1",
     "hdr-histogram-js": "^2.0.1",
     "koalas": "^1.0.2",
     "limiter": "^1.1.4",

packages/dd-trace/src/plugins/util/git-repo-info.js

@@ -0,0 +1,356 @@
+// From https://github.com/rwjblue/git-repo-info/blob/d3ab418ef8b392eabbe911a37871708b15201b70/index.js
+
+'use strict';
+
+var fs   = require('fs');
+var path = require('path');
+var zlib = require('zlib');
+
+var GIT_DIR = '.git';
+
+function changeGitDir(newDirName) {
+  GIT_DIR = newDirName;
+}
+
+function findRepoHandleLinkedWorktree(gitPath) {
+  var stat = fs.statSync(gitPath);
+  var root = path.dirname(path.resolve(gitPath));
+  if (stat.isDirectory()) {
+    return {
+      // for the base (non-linked) dir, there is no distinction between where we
+      // find the HEAD file and where we find the rest of .git
+      worktreeGitDir: gitPath,
+      commonGitDir: gitPath,
+      root: root,
+    };
+  } else {
+    // We have a file that tells us where to find the worktree git dir.  Once we
+    // look there we'll know how to find the common git dir, depending on
+    // whether it's a linked worktree git dir, or a submodule dir
+
+    var linkedGitDir = fs.readFileSync(gitPath).toString();
+    var absolutePath=path.resolve(path.dirname(gitPath));
+    var worktreeGitDirUnresolved = /gitdir: (.*)/.exec(linkedGitDir)[1];
+    var worktreeGitDir = path.resolve(absolutePath,worktreeGitDirUnresolved);
+    var commonDirPath = path.join(worktreeGitDir, 'commondir');
+    if (fs.existsSync(commonDirPath)) {
+      // this directory contains a `commondir` file; we're in a linked worktree
+
+      var commonDirRelative = fs.readFileSync(commonDirPath).toString().replace(/\r?\n$/, '');
+      var commonDir = path.resolve(path.join(worktreeGitDir, commonDirRelative));
+
+      return {
+        worktreeGitDir: worktreeGitDir,
+        commonGitDir: commonDir,
+        root: path.dirname(commonDir),
+      };
+    } else {
+      // there is no `commondir` file; we're in a submodule
+      return {
+        worktreeGitDir: worktreeGitDir,
+        commonGitDir: worktreeGitDir,
+        root: root,
+      };
+    }
+  }
+}
+
+function findRepo(startingPath) {
+  var gitPath, lastPath;
+  var currentPath = startingPath;
+
+  if (!currentPath) { currentPath = process.cwd(); }
+
+  do {
+    gitPath = path.join(currentPath, GIT_DIR);
+
+    if (fs.existsSync(gitPath)) {
+      return findRepoHandleLinkedWorktree(gitPath);
+    }
+
+    lastPath = currentPath;
+    currentPath = path.resolve(currentPath, '..');
+  } while (lastPath !== currentPath);
+
+  return null;
+}
+
+function findPackedTags(gitPath, refPath) {
+  return getPackedRefsForType(gitPath, refPath, 'tag');
+}
+
+function findPackedCommit(gitPath, refPath) {
+  return getPackedRefsForType(gitPath, refPath, 'commit')[0];
+}
+
+function getPackedRefsForType(gitPath, refPath, type) {
+  var packedRefsFile = getPackedRefsFile(gitPath);
+  if (packedRefsFile) {
+    return getLinesForRefPath(packedRefsFile, type, refPath).map(function(shaLine) {
+      return getShaBasedOnType(type, shaLine);
+    });
+  }
+  return [];
+}
+
+function getPackedRefsFile(gitPath) {
+  var packedRefsFilePath = path.join(gitPath, 'packed-refs');
+  return fs.existsSync(packedRefsFilePath) ? fs.readFileSync(packedRefsFilePath, { encoding: 'utf8' }) : false;
+}
+
+function getLinesForRefPath(packedRefsFile, type, refPath) {
+  return packedRefsFile.split(/\r?\n/).reduce(function(acc, line, idx, arr) {
+    var targetLine = line.indexOf('^') > -1 ? arr[idx-1] : line;
+    return doesLineMatchRefPath(type, line, refPath) ? acc.concat(targetLine) : acc;
+  }, []);
+}
+
+function doesLineMatchRefPath(type, line, refPath) {
+  var refPrefix = type === 'tag' ? 'refs/tags' : 'refs/heads';
+  return (line.indexOf(refPrefix) > -1 || line.indexOf('^') > -1) && line.indexOf(refPath) > -1;
+}
+
+function getShaBasedOnType(type, shaLine) {
+  var shaResult = '';
+  if (type === 'tag') {
+    shaResult = shaLine.split('tags/')[1];
+  } else if (type === 'commit') {
+    shaResult = shaLine.split(' ')[0];
+  }
+
+  return shaResult;
+}
+
+function commitForTag(gitPath, tag) {
+  var tagPath = path.join(gitPath, 'refs', 'tags', tag);
+  var taggedObject = fs.readFileSync(tagPath, { encoding: 'utf8' }).trim();
+  var objectPath = path.join(gitPath, 'objects', taggedObject.slice(0, 2), taggedObject.slice(2));
+
+  if (!zlib.inflateSync || !fs.existsSync(objectPath)) {
+    // we cannot support annotated tags on node v0.10 because
+    // zlib does not allow sync access
+    return taggedObject;
+  }
+
+  var objectContents = zlib.inflateSync(fs.readFileSync(objectPath)).toString();
+
+  // 'tag 172\u0000object c1ee41c325d54f410b133e0018c7a6b1316f6cda\ntype commit\ntag awesome-tag\ntagger Robert Jackson
+  // <[email protected]> 1429100021 -0400\n\nI am making an annotated tag.\n'
+  if (objectContents.slice(0,3) === 'tag') {
+    var sections = objectContents.split(/\0|\r?\n/);
+    var sha = sections[1].slice(7);
+
+    return sha;
+  } else {
+    // this will return the tag for lightweight tags
+    return taggedObject;
+  }
+}
+
+function findTag(gitPath, sha) {
+  var tags = findPackedTags(gitPath, sha)
+    .concat(findUnpackedTags(gitPath, sha));
+  tags.sort();
+  return tags.length ? tags[0] : false;
+}
+
+var LAST_TAG_CACHE = {};
+
+function findLastTagCached(gitPath, sha) {
+  if(!LAST_TAG_CACHE[gitPath]) {
+    LAST_TAG_CACHE[gitPath] = {};
+  }
+
+  if(!LAST_TAG_CACHE[gitPath][sha]) {
+    LAST_TAG_CACHE[gitPath][sha] = findLastTag(gitPath, sha);
+  }
+
+  return LAST_TAG_CACHE[gitPath][sha];
+}
+
+function findLastTag(gitPath, sha) {
+  var queue = [{ sha: sha, depth: 0 }];
+  var seenCommits = new Set();
+  while (queue.length) {
+    var element = queue.shift();
+    if (seenCommits.has(element.sha)) {
+      continue;
+    }
+    seenCommits.add(element.sha);
+    var tag = findTag(gitPath, element.sha);
+    if (tag) {
+      return {
+        tag: tag,
+        commitsSinceLastTag: element.depth
+      };
+    }
+    var commitData = getCommitData(gitPath, sha);
+    if (commitData && commitData.parents) {
+      for (var i = 0; i < commitData.parents.length; i++) {
+        queue.push({ sha: commitData.parents[i], depth: element.depth + 1 });
+      }
+    }
+  }
+  return { tag: null, commitsSinceLastTag: Infinity };
+}
+
+function findUnpackedTags(gitPath, sha) {
+  var unpackedTags = [];
+  var tags = findLooseRefsForType(gitPath, 'tags');
+  for (var i = 0, l = tags.length; i < l; i++) {
+    var commitAtTag = commitForTag(gitPath, tags[i]);
+    if (commitAtTag === sha) {
+      unpackedTags.push(tags[i]);
+    }
+  }
+  return unpackedTags;
+}
+
+function findLooseRefsForType(gitPath, type) {
+  var refsPath = path.join(gitPath, 'refs', type);
+  return fs.existsSync(refsPath) ? fs.readdirSync(refsPath) : [];
+}
+
+module.exports = function(gitPath) {
+  var gitPathInfo = findRepo(gitPath);
+
+  var result = {
+    sha: null,
+    abbreviatedSha: null,
+    branch: null,
+    tag: null,
+    committer: null,
+    committerDate: null,
+    author: null,
+    authorDate: null,
+    commitMessage: null,
+    root: null,
+    commonGitDir: null,
+    worktreeGitDir: null,
+    lastTag: null,
+    commitsSinceLastTag: 0,
+  };
+
+  if (!gitPathInfo) { return result; }
+
+  try {
+    result.root = gitPathInfo.root;
+    result.commonGitDir = gitPathInfo.commonGitDir;
+    result.worktreeGitDir = gitPathInfo.worktreeGitDir;
+
+    var headFilePath = path.join(gitPathInfo.worktreeGitDir, 'HEAD');
+
+    if (fs.existsSync(headFilePath)) {
+      var headFile = fs.readFileSync(headFilePath, {encoding: 'utf8'});
+      var branchName = headFile.split('/').slice(2).join('/').trim();
+      if (!branchName) {
+        branchName = headFile.split('/').slice(-1)[0].trim();
+      }
+      var refPath = headFile.split(' ')[1];
+
+      // Find branch and SHA
+      if (refPath) {
+        refPath = refPath.trim();
+        var branchPath = path.join(gitPathInfo.commonGitDir, refPath);
+
+        result.branch  = branchName;
+        if (fs.existsSync(branchPath)) {
+          result.sha = fs.readFileSync(branchPath, { encoding: 'utf8' }).trim();
+        } else {
+          result.sha = findPackedCommit(gitPathInfo.commonGitDir, refPath);
+        }
+      } else {
+        result.sha = branchName;
+      }
+
+      result.abbreviatedSha = result.sha.slice(0,10);
+
+      // Find commit data
+      var commitData = getCommitData(gitPathInfo.commonGitDir, result.sha);
+      if (commitData) {
+        result = Object.keys(commitData).reduce(function(r, key) {
+          result[key] = commitData[key];
+          return result;
+        }, result);
+      }
+
+      // Find tag
+      var tag = findTag(gitPathInfo.commonGitDir, result.sha);
+      if (tag) {
+        result.tag = tag;
+      }
+
+      var lastTagInfo = findLastTagCached(gitPathInfo.commonGitDir, result.sha);
+      result.lastTag = lastTagInfo.tag;
+      result.commitsSinceLastTag = lastTagInfo.commitsSinceLastTag;
+    }
+  } catch (e) {
+    if (!module.exports._suppressErrors) {
+      throw e; // helps with testing and scenarios where we do not expect errors
+    } else {
+      // eat the error
+    }
+  }
+
+  return result;
+};
+
+module.exports._suppressErrors = true;
+module.exports._findRepo     = findRepo;
+module.exports._changeGitDir = changeGitDir;
+
+function getCommitData(gitPath, sha) {
+  var objectPath = path.join(gitPath, 'objects', sha.slice(0, 2), sha.slice(2));
+
+  if (zlib.inflateSync && fs.existsSync(objectPath)) {
+    var objectContents = zlib.inflateSync(fs.readFileSync(objectPath)).toString();
+
+    return objectContents.split(/\0|\r?\n/)
+      .filter(function(item) {
+        return !!item;
+      })
+      .reduce(function(data, section) {
+        var part = section.slice(0, section.indexOf(' ')).trim();
+
+        switch(part) {
+          case 'commit':
+          case 'tag':
+          case 'object':
+          case 'type':
+          case 'tree':
+            //ignore these for now
+            break;
+          case 'author':
+          case 'committer':
+            var parts = section.match(/^(?:author|committer)\s(.+)\s(\d+\s(?:\+|\-)\d{4})$/);
+
+            if (parts) {
+              data[part] = parts[1];
+              data[part + 'Date'] = parseDate(parts[2]);
+            }
+            break;
+          case 'parent':
+            if (!data.parents) {
+              data.parents = [];
+            }
+            data.parents.push(section.split(' ')[1]);
+            break;
+          default:
+            // Added compatibility with multiline commit message
+            // https://github.com/rwjblue/git-repo-info/pull/60
+            if (!data.commitMessage) {
+              data.commitMessage = section;
+            } else {
+              data.commitMessage = `${data.commitMessage}\n${section}`;
+            }
+        }
+
+        return data;
+      }, {});
+  }
+}
+
+function parseDate(d) {
+  var epoch = d.split(' ')[0];
+  return new Date(epoch * 1000).toISOString();
+}

packages/dd-trace/src/plugins/util/git.js

@@ -1,5 +1,5 @@
 const coalesce = require('koalas')
-const getRepoInfo = require('git-repo-info')
+const getRepoInfo = require('./git-repo-info')
 
 const { sanitizedExec } = require('./exec')
 

packages/dd-trace/test/plugins/util/git.spec.js

@@ -30,7 +30,7 @@ const {
     './exec': {
       'sanitizedExec': sanitizedExecStub
     },
-    'git-repo-info': gitRepoInfoStub
+    './git-repo-info': gitRepoInfoStub
   }
 )