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5dbd942
vojtajina authored
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| 1 | #!/usr/bin/env node | |
| 2 | ||
| 3 | /** | |
| 4 | * Git COMMIT-MSG hook for validating commit message | |
| 5 | * See https://docs.google.com/document/d/1rk04jEuGfk9kYzfqCuOlPTSJw3hEDZJTBN5E5f1SALo/edit | |
| 6 | * | |
| 7 | * Installation: | |
| 8 | * >> cd <angular-repo> | |
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3661bab
daniellmb authored
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| 9 | * >> ln -s ../../validate-commit-msg.js .git/hooks/commit-msg | |
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5dbd942
vojtajina authored
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| 10 | */ | |
| 11 | var fs = require('fs'); | |
| 12 | var util = require('util'); | |
| 13 | ||
| 14 | ||
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1ae34aa
IgorMinar authored
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| 15 | var MAX_LENGTH = 100; | |
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6131521
mhevery authored
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| 16 | var PATTERN = /^(?:fixup!\s*)?(\w*)(\(([\w\$\.\-\*/]*)\))?\: (.*)$/; | |
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5dbd942
vojtajina authored
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| 17 | var IGNORED = /^WIP\:/; | |
| 18 | var TYPES = { | |
| 19 | feat: true, | |
| 20 | fix: true, | |
| 21 | docs: true, | |
| 22 | style: true, | |
| 23 | refactor: true, | |
| 24 | test: true, | |
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cfe13b5
IgorMinar authored
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| 25 | chore: true, | |
| 26 | revert: true | |
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5dbd942
vojtajina authored
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| 27 | }; | |
| 28 | ||
| 29 | ||
| 30 | var error = function() { | |
| 31 | // gitx does not display it | |
| 32 | // http://gitx.lighthouseapp.com/projects/17830/tickets/294-feature-display-hook-error-message-when-hook-fails | |
| 33 | // https://groups.google.com/group/gitx/browse_thread/thread/a03bcab60844b812 | |
| 34 | console.error('INVALID COMMIT MSG: ' + util.format.apply(null, arguments)); | |
| 35 | }; | |
| 36 | ||
| 37 | ||
| 38 | var validateMessage = function(message) { | |
| 39 | var isValid = true; | |
| 40 | ||
| 41 | if (IGNORED.test(message)) { | |
| 42 | console.log('Commit message validation ignored.'); | |
| 43 | return true; | |
| 44 | } | |
| 45 | ||
| 46 | if (message.length > MAX_LENGTH) { | |
| 47 | error('is longer than %d characters !', MAX_LENGTH); | |
| 48 | isValid = false; | |
| 49 | } | |
| 50 | ||
| 51 | var match = PATTERN.exec(message); | |
| 52 | ||
| 53 | if (!match) { | |
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6131521
mhevery authored
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| 54 | error('does not match "<type>(<scope>): <subject>" ! was: ' + message); | |
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5dbd942
vojtajina authored
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| 55 | return false; | |
| 56 | } | |
| 57 | ||
| 58 | var type = match[1]; | |
| 59 | var scope = match[3]; | |
| 60 | var subject = match[4]; | |
| 61 | ||
| 62 | if (!TYPES.hasOwnProperty(type)) { | |
| 63 | error('"%s" is not allowed type !', type); | |
| 64 | return false; | |
| 65 | } | |
| 66 | ||
| 67 | // Some more ideas, do want anything like this ? | |
| 68 | // - allow only specific scopes (eg. fix(docs) should not be allowed ? | |
| 69 | // - auto correct the type to lower case ? | |
| 70 | // - auto correct first letter of the subject to lower case ? | |
| 71 | // - auto add empty line after subject ? | |
| 72 | // - auto remove empty () ? | |
| 73 | // - auto correct typos in type ? | |
| 74 | // - store incorrect messages, so that we can learn | |
| 75 | ||
| 76 | return isValid; | |
| 77 | }; | |
| 78 | ||
| 79 | ||
| 80 | var firstLineFromBuffer = function(buffer) { | |
| 81 | return buffer.toString().split('\n').shift(); | |
| 82 | }; | |
| 83 | ||
| 84 | ||
| 85 | ||
| 86 | // publish for testing | |
| 87 | exports.validateMessage = validateMessage; | |
| 88 | ||
| 89 | // hacky start if not run by jasmine :-D | |
| 90 | if (process.argv.join('').indexOf('jasmine-node') === -1) { | |
| 91 | var commitMsgFile = process.argv[2]; | |
| 92 | var incorrectLogFile = commitMsgFile.replace('COMMIT_EDITMSG', 'logs/incorrect-commit-msgs'); | |
| 93 | ||
| 94 | fs.readFile(commitMsgFile, function(err, buffer) { | |
| 95 | var msg = firstLineFromBuffer(buffer); | |
| 96 | ||
| 97 | if (!validateMessage(msg)) { | |
| 98 | fs.appendFile(incorrectLogFile, msg + '\n', function() { | |
| 99 | process.exit(1); | |
| 100 | }); | |
| 101 | } else { | |
| 102 | process.exit(0); | |
| 103 | } | |
| 104 | }); | |
| 105 | } |