@mutasim77/loc-counter
Version:
A powerful lines of code counter with detailed statistics
184 lines (183 loc) • 6.77 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.countLines = countLines;
exports.aggregateStats = aggregateStats;
const path = __importStar(require("path"));
const languages_1 = require("../constants/languages");
const fileUtils_1 = require("./fileUtils");
async function countLines(filePath) {
const extension = path.extname(filePath);
const language = (0, languages_1.getLanguageByExtension)(extension);
if (!language) {
return null;
}
const content = await (0, fileUtils_1.readFileContent)(filePath);
if (!content) {
return null;
}
const stats = analyzeContent(content, language);
return {
path: filePath,
language: language.name,
size: content.length,
...stats
};
}
function analyzeContent(content, language) {
const lines = content.split('\n');
const stats = {
total: lines.length,
code: 0,
comment: 0,
blank: 0
};
let inMultiLineComment = false;
let currentMultiLineCommentEnd = '';
lines.forEach(line => {
var _a, _b, _c;
const trimmedLine = line.trim();
// if it's a blank line
if (trimmedLine === '') {
stats.blank++;
return;
}
// if we're inside a multi-line comment
if (inMultiLineComment) {
stats.comment++;
// if the multi-line comment ends on this line
if (trimmedLine.includes(currentMultiLineCommentEnd)) {
inMultiLineComment = false;
currentMultiLineCommentEnd = '';
// And if there's code after the comment end; ++ code count
const codeAfterComment = (_a = trimmedLine.split(currentMultiLineCommentEnd)[1]) === null || _a === void 0 ? void 0 : _a.trim();
if (codeAfterComment && !isLineStartingWithComment(codeAfterComment, language)) {
stats.code++;
stats.comment--;
}
}
return;
}
// if line starts with a single-line comment
if ((_b = language.commentPatterns.singleLine) === null || _b === void 0 ? void 0 : _b.some(pattern => trimmedLine.startsWith(pattern))) {
stats.comment++;
return;
}
// if line contains a multi-line comment start
const multiLineCommentStart = (_c = language.commentPatterns.multiLine) === null || _c === void 0 ? void 0 : _c.find(pattern => trimmedLine.includes(pattern.start));
if (multiLineCommentStart) {
const startIndex = trimmedLine.indexOf(multiLineCommentStart.start);
// if there's code before the comment
if (startIndex > 0 && trimmedLine.substring(0, startIndex).trim() !== '') {
stats.code++;
}
else {
stats.comment++;
}
// if the multi-line comment ends on the same line
if (trimmedLine.includes(multiLineCommentStart.end)) {
// if there's code after the comment
const endIndex = trimmedLine.indexOf(multiLineCommentStart.end) + multiLineCommentStart.end.length;
if (endIndex < trimmedLine.length && trimmedLine.substring(endIndex).trim() !== '') {
stats.code++;
}
}
else {
inMultiLineComment = true;
currentMultiLineCommentEnd = multiLineCommentStart.end;
}
return;
}
// here --> it's a code line
stats.code++;
});
return stats;
}
function isLineStartingWithComment(line, language) {
var _a, _b;
// single-line comment
if ((_a = language.commentPatterns.singleLine) === null || _a === void 0 ? void 0 : _a.some(pattern => line.startsWith(pattern))) {
return true;
}
// multi-line comment
if ((_b = language.commentPatterns.multiLine) === null || _b === void 0 ? void 0 : _b.some(pattern => line.startsWith(pattern.start))) {
return true;
}
return false;
}
function aggregateStats(fileStats) {
const total = {
total: 0,
code: 0,
comment: 0,
blank: 0
};
const languageMap = {};
fileStats.forEach(stat => {
total.total += stat.total;
total.code += stat.code;
total.comment += stat.comment;
total.blank += stat.blank;
if (!languageMap[stat.language]) {
languageMap[stat.language] = {
files: 0,
total: 0,
code: 0,
comment: 0,
blank: 0
};
}
languageMap[stat.language].files += 1;
languageMap[stat.language].total += stat.total;
languageMap[stat.language].code += stat.code;
languageMap[stat.language].comment += stat.comment;
languageMap[stat.language].blank += stat.blank;
});
const languages = Object.entries(languageMap).map(([language, stats]) => ({
language,
files: stats.files,
total: stats.total,
code: stats.code,
comment: stats.comment,
blank: stats.blank,
percentage: (stats.code / total.code) * 100
}));
languages.sort((a, b) => b.code - a.code);
return {
files: fileStats,
languages,
total
};
}