diff options
Diffstat (limited to 'deps/node/deps/npm/lib/help-search.js')
| -rw-r--r-- | deps/node/deps/npm/lib/help-search.js | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/deps/node/deps/npm/lib/help-search.js b/deps/node/deps/npm/lib/help-search.js deleted file mode 100644 index 475f305e..00000000 --- a/deps/node/deps/npm/lib/help-search.js +++ /dev/null @@ -1,212 +0,0 @@ - -module.exports = helpSearch - -var fs = require('graceful-fs') -var path = require('path') -var asyncMap = require('slide').asyncMap -var npm = require('./npm.js') -var glob = require('glob') -var color = require('ansicolors') -var output = require('./utils/output.js') - -helpSearch.usage = 'npm help-search <text>' - -function helpSearch (args, silent, cb) { - if (typeof cb !== 'function') { - cb = silent - silent = false - } - if (!args.length) return cb(helpSearch.usage) - - var docPath = path.resolve(__dirname, '..', 'doc') - return glob(docPath + '/*/*.md', function (er, files) { - if (er) return cb(er) - readFiles(files, function (er, data) { - if (er) return cb(er) - searchFiles(args, data, function (er, results) { - if (er) return cb(er) - formatResults(args, results, cb) - }) - }) - }) -} - -function readFiles (files, cb) { - var res = {} - asyncMap(files, function (file, cb) { - fs.readFile(file, 'utf8', function (er, data) { - res[file] = data - return cb(er) - }) - }, function (er) { - return cb(er, res) - }) -} - -function searchFiles (args, files, cb) { - var results = [] - Object.keys(files).forEach(function (file) { - var data = files[file] - - // skip if no matches at all - var match - for (var a = 0, l = args.length; a < l && !match; a++) { - match = data.toLowerCase().indexOf(args[a].toLowerCase()) !== -1 - } - if (!match) return - - var lines = data.split(/\n+/) - - // if a line has a search term, then skip it and the next line. - // if the next line has a search term, then skip all 3 - // otherwise, set the line to null. then remove the nulls. - l = lines.length - for (var i = 0; i < l; i++) { - var line = lines[i] - var nextLine = lines[i + 1] - var ll - - match = false - if (nextLine) { - for (a = 0, ll = args.length; a < ll && !match; a++) { - match = nextLine.toLowerCase() - .indexOf(args[a].toLowerCase()) !== -1 - } - if (match) { - // skip over the next line, and the line after it. - i += 2 - continue - } - } - - match = false - for (a = 0, ll = args.length; a < ll && !match; a++) { - match = line.toLowerCase().indexOf(args[a].toLowerCase()) !== -1 - } - if (match) { - // skip over the next line - i++ - continue - } - - lines[i] = null - } - - // now squish any string of nulls into a single null - lines = lines.reduce(function (l, r) { - if (!(r === null && l[l.length - 1] === null)) l.push(r) - return l - }, []) - - if (lines[lines.length - 1] === null) lines.pop() - if (lines[0] === null) lines.shift() - - // now see how many args were found at all. - var found = {} - var totalHits = 0 - lines.forEach(function (line) { - args.forEach(function (arg) { - var hit = (line || '').toLowerCase() - .split(arg.toLowerCase()).length - 1 - if (hit > 0) { - found[arg] = (found[arg] || 0) + hit - totalHits += hit - } - }) - }) - - var cmd = 'npm help ' - if (path.basename(path.dirname(file)) === 'api') { - cmd = 'npm apihelp ' - } - cmd += path.basename(file, '.md').replace(/^npm-/, '') - results.push({ - file: file, - cmd: cmd, - lines: lines, - found: Object.keys(found), - hits: found, - totalHits: totalHits - }) - }) - - // if only one result, then just show that help section. - if (results.length === 1) { - return npm.commands.help([results[0].file.replace(/\.md$/, '')], cb) - } - - if (results.length === 0) { - output('No results for ' + args.map(JSON.stringify).join(' ')) - return cb() - } - - // sort results by number of results found, then by number of hits - // then by number of matching lines - results = results.sort(function (a, b) { - return a.found.length > b.found.length ? -1 - : a.found.length < b.found.length ? 1 - : a.totalHits > b.totalHits ? -1 - : a.totalHits < b.totalHits ? 1 - : a.lines.length > b.lines.length ? -1 - : a.lines.length < b.lines.length ? 1 - : 0 - }) - - cb(null, results) -} - -function formatResults (args, results, cb) { - if (!results) return cb(null) - - var cols = Math.min(process.stdout.columns || Infinity, 80) + 1 - - var out = results.map(function (res) { - var out = res.cmd - var r = Object.keys(res.hits) - .map(function (k) { - return k + ':' + res.hits[k] - }).sort(function (a, b) { - return a > b ? 1 : -1 - }).join(' ') - - out += ((new Array(Math.max(1, cols - out.length - r.length))) - .join(' ')) + r - - if (!npm.config.get('long')) return out - - out = '\n\n' + out + '\n' + - (new Array(cols)).join('—') + '\n' + - res.lines.map(function (line, i) { - if (line === null || i > 3) return '' - for (var out = line, a = 0, l = args.length; a < l; a++) { - var finder = out.toLowerCase().split(args[a].toLowerCase()) - var newOut = '' - var p = 0 - - finder.forEach(function (f) { - newOut += out.substr(p, f.length) - - var hilit = out.substr(p + f.length, args[a].length) - if (npm.color) hilit = color.bgBlack(color.red(hilit)) - newOut += hilit - - p += f.length + args[a].length - }) - } - - return newOut - }).join('\n').trim() - return out - }).join('\n') - - if (results.length && !npm.config.get('long')) { - out = 'Top hits for ' + (args.map(JSON.stringify).join(' ')) + '\n' + - (new Array(cols)).join('—') + '\n' + - out + '\n' + - (new Array(cols)).join('—') + '\n' + - '(run with -l or --long to see more context)' - } - - output(out.trim()) - cb(null, results) -} |