feat: 초기 프로젝트 설정 및 룰.md 파일 추가

api.hyungi.net/node_modules/vizion/lib/git/js-git-service.js

@@ -0,0 +1,157 @@
+var path = require('path');
+var whilst = require('async/whilst');
+var helper = require('../helper.js');
+
+var jsGitService = {};
+
+jsGitService.loadRepo = function (folder) {
+  var repo = {};
+  // Mixin the base DB operations using local git database on disk.
+  require('git-node-fs/mixins/fs-db')(repo, path.join(folder, '.git'));
+  // Mixin the walker helpers.
+  require('js-git/mixins/walkers')(repo);
+
+  return repo;
+};
+
+jsGitService.getHeadCommit = function (folder, remote, cb) {
+  if (cb === undefined) {
+    cb = remote;
+    remote = null;
+  }
+
+  var repo = jsGitService.loadRepo(folder);
+
+  // Look up the hash that master currently points to.
+  // HEAD for local head
+  // refs/remotes/origin/HEAD for remote head
+  var ref = remote ? 'refs/remotes/' + remote + '/HEAD' : 'HEAD';
+  jsGitService.getLastCommitByRef(repo, ref, cb);
+};
+
+jsGitService.getLastCommit = function (folder, branch, remote, cb) {
+  if (cb === undefined) {
+    cb = remote;
+    remote = null;
+  }
+
+  var repo = jsGitService.loadRepo(folder);
+
+  var ref = remote ? 'refs/remotes/origin/' + branch : 'refs/heads/' + branch;
+
+  jsGitService.getLastCommitByRef(repo, ref, cb);
+};
+
+jsGitService.getLastCommitByRef = function (repo, ref, cb) {
+  repo.readRef(ref, function (err, commitHash) {
+    if (err) {
+      return cb(err);
+    }
+    if (!commitHash) {
+      return cb(null);
+    }
+
+    repo.logWalk(commitHash.replace(/ref: /g, ""), function (err, logStream) {
+      if (err) {
+        return cb(err);
+      }
+      if (!logStream) {
+        return cb(null);
+      }
+
+      logStream.read(function (err, commit) {
+        if (err) {
+          return cb(err);
+        }
+
+        cb(null, commit);
+      });
+    });
+  });
+};
+
+jsGitService.getCommitByHash = function (repo, hash, cb) {
+  repo.loadAs("commit", hash, function (err, commit) {
+    if (err) {
+      return cb(err);
+    }
+
+    cb(null, commit);
+  });
+};
+
+jsGitService.getCommitHistory = function (folder, n, branch, remote, cb) {
+  var commitHistory = [];
+
+  if (cb === undefined) {
+    cb = remote;
+    remote = null;
+  }
+
+  var repo = jsGitService.loadRepo(folder);
+
+  // HEAD for local head
+  // refs/remotes/origin/HEAD for remote head
+  // refs/heads/my-branch for local branch
+  // refs/remotes/origin/my-branch for remote branch
+  var ref;
+  if (branch === 'HEAD') {
+    ref = remote ? 'refs/remotes/' + remote + '/HEAD' : 'HEAD';
+  }
+  else {
+    ref = remote ? 'refs/remotes/origin/' + branch : 'refs/heads/' + branch;
+  }
+
+  jsGitService.getLastCommitByRef(repo, ref, function (err, commit) {
+    if (err) {
+      return cb(err);
+    }
+    if (!commit) {
+      return cb(null, commitHistory);
+    }
+
+    commitHistory.push(commit);
+
+    var count = 1;
+    var parentCommitHash = helper.last(commit.parents); // last parent is the parent in the 'git log' meaning
+
+    whilst(
+      function () {
+        return count < n && parentCommitHash;
+      },
+      function (callback) {
+
+        jsGitService.getCommitByHash(repo, parentCommitHash, function (err, commit) {
+          if (err) {
+            return callback(err);
+          }
+          if (!commit) {
+            parentCommitHash = null;
+            return callback(null);
+          }
+
+          commit.hash = parentCommitHash; // add hash back to commit as not a property when loaded by hash
+
+          count++;
+          commitHistory.push(commit);
+          parentCommitHash = helper.last(commit.parents);
+          callback(null);
+        });
+      },
+      function (err) {
+        if (err) {
+          return cb(err);
+        }
+
+        return cb(null, commitHistory);
+      }
+    );
+  });
+};
+
+jsGitService.getRefHash = function (folder, branch, remote, cb) {
+  var repo = jsGitService.loadRepo(folder);
+  repo.readRef('refs/remotes/' + remote + '/' + branch, cb);
+};
+
+module.exports = jsGitService;