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angular.js/compare-master-to-stable.js
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53e4da8 Vojta Jina chore: fix compare-master-to-stable script
vojtajina authored
1 #!/usr/bin/env node
cf0e6f3 Brian Ford chore(release): add script for comparing master and stable branches
btford authored
2
3 var util = require('util');
4 var cp = require('child_process');
5
6 var Q = require('q');
7 var _ = require('lodash');
8 var semver = require('semver');
9
10 var exec = function (cmd) {
11 return function () {
12 var args = Array.prototype.slice.call(arguments, 0);
13 args.unshift(cmd);
14 var fullCmd = util.format.apply(util, args);
15 return Q.nfcall(cp.exec, fullCmd).then(function (out) {
16 return out[0].split('\n');
17 });
18 };
19 };
20
21 var andThen = function (fn, after) {
22 return function () {
23 return fn.apply(this, arguments).then(after);
24 };
25 };
26
27 var oneArg = function (fn) {
28 return function (arg) {
29 return fn(arg);
30 };
31 };
32
33 var oneLine = function (lines) {
34 return lines[0].trim();
35 };
36
37 var noArgs = function (fn) {
38 return function () {
39 return fn();
40 };
41 };
42
43 var identity = function (i) { return i; };
44
45 // like Q.all, but runs the comands in series
46 // useful for ensuring env state (like which branch is checked out)
47 var allInSeries = function (fn) {
48 return function (args) {
49 var results = [];
50 var def;
51 while (args.length > 0) {
52 (function (arg) {
53 if (def) {
54 def = def.then(function () {
55 return fn(arg);
56 });
57 } else {
58 def = fn(arg);
59 }
60 def = def.then(function (res) {
61 results.push(res);
62 });
63 }(args.pop()));
64 }
65 return def.then(function () {
66 return results;
67 });
68 };
69 };
70
71 var compareBranches = function (left, right) {
72 console.log('# These commits are in ' + left.name + ' but not in ' + right.name + '\n');
73 console.log(_(left.log).
74 difference(right.log).
75 map(function (line) {
76 return left.full[left.log.indexOf(line)]; // lol O(n^2)
77 }).
78 value().
79 join('\n'));
80 };
81
82 var checkout = oneArg(exec('git checkout %s'));
83
84 var getCurrentBranch = andThen(noArgs(exec('git rev-parse --abbrev-ref HEAD')), oneLine);
85 var getTags = noArgs(exec('git tag'));
86 var getShaOfTag = oneArg(exec('git rev-list %s | head -n 1'));
87 var getTheLog = oneArg(exec('git log --pretty=oneline %s..HEAD | cat'));
88
89 // remember this so we can restore state
90 var currentBranch;
91
92 getCurrentBranch().
93 then(function (branch) {
94 currentBranch = branch;
95 }).
96 then(getTags).
97 then(function (tags) {
98 return tags.
99 filter(semver.valid).
100 map(semver.clean).
101 sort(semver.rcompare);
102 }).
103 then(function (tags) {
104 var major = tags[0].split('.')[0] + '.x';
105 return tags.
106 filter(function (ver) {
107 return semver.satisfies(ver, major);
108 });
109 }).
110 then(function (tags) {
111 return _(tags).
112 groupBy(function (tag) {
113 return tag.split('.')[1];
114 }).
115 map(function (group) {
116 return _.first(group);
117 }).
118 map(function (tag) {
119 return 'v' + tag;
120 }).
121 value();
122 }).
123 then(function (tags) {
bfb6af7 Vojta Jina chore: make compare-master-to-stable script more flexible
vojtajina authored
124 var master = tags.pop();
125 var stable = tags.pop();
126
cf0e6f3 Brian Ford chore(release): add script for comparing master and stable branches
btford authored
127 return [
bfb6af7 Vojta Jina chore: make compare-master-to-stable script more flexible
vojtajina authored
128 { name: stable.replace(/\d+$/, 'x'), tag: stable },
129 { name: 'master', tag: master}
cf0e6f3 Brian Ford chore(release): add script for comparing master and stable branches
btford authored
130 ];
131 }).
132 then(allInSeries(function (branch) {
133 return checkout(branch.name).
134 then(function () {
135 return getTheLog(branch.tag);
136 }).
137 then(function (log) {
138 return log.
139 filter(identity);
140 }).
141 then(function (log) {
142 branch.full = log.map(function (line) {
143 line = line.split(' ');
144 var sha = line.shift();
145 var msg = line.join(' ');
146 return sha + (msg.toLowerCase().indexOf('fix') === -1 ? ' ' : ' * ') + msg;
147 });
148 branch.log = log.map(function (line) {
149 return line.substr(41)
150 });
151 return branch;
152 });
153 })).
154 then(function (pairs) {
155 compareBranches(pairs[0], pairs[1]);
156 console.log('\n');
157 compareBranches(pairs[1], pairs[0]);
158 return pairs;
159 }).
160 then(function () {
161 return checkout(currentBranch);
162 }).
163 catch(function (e) {
164 console.log(e.stack);
165 });
166
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