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util.js
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util.js
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'use strict';
var path = require('path');
var fs = require('fs');
module.exports = {
rewrite: rewrite,
rewriteFile: rewriteFile,
appName: appName,
processDirectory: processDirectory,
capitalizeFirstLetter: capitalizeFirstLetter
};
function rewriteFile (args) {
args.path = args.path || process.cwd();
var fullPath = path.join(args.path, args.file);
args.haystack = fs.readFileSync(fullPath, 'utf8');
var body = rewrite(args);
fs.writeFileSync(fullPath, body);
}
function escapeRegExp (str) {
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
}
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
function rewrite (args) {
// check if splicable is already in the body text
var re = new RegExp(args.splicable.map(function (line) {
return '\s*' + escapeRegExp(line);
}).join('\n'));
if (re.test(args.haystack)) {
return args.haystack;
}
var lines = args.haystack.split('\n');
var otherwiseLineIndex = -1;
lines.forEach(function (line, i) {
if (line.indexOf(args.needle) !== -1) {
otherwiseLineIndex = i;
}
});
if(otherwiseLineIndex === -1) return lines.join('\n');
var spaces = 0;
while (lines[otherwiseLineIndex].charAt(spaces) === ' ') {
spaces += 1;
}
var spaceStr = '';
while ((spaces -= 1) >= 0) {
spaceStr += ' ';
}
lines.splice(otherwiseLineIndex + 1, 0, args.splicable.map(function (line) {
return spaceStr + line;
}).join('\n'));
return lines.join('\n');
}
function appName (self) {
var counter = 0, suffix = self.options['app-suffix'];
// Have to check this because of generator bug #386
process.argv.forEach(function(val) {
if (val.indexOf('--app-suffix') > -1) {
counter++;
}
});
if (counter === 0 || (typeof suffix === 'boolean' && suffix)) {
suffix = 'App';
}
return suffix ? self._.classify(suffix) : '';
}
function filterFile (template) {
// Find matches for parans
var filterMatches = template.match(/\(([^)]+)\)/g);
var filters = [];
if(filterMatches) {
filterMatches.forEach(function(filter) {
filters.push(filter.replace('(', '').replace(')', ''));
template = template.replace(filter, '');
});
}
return { name: template, filters: filters };
}
function templateIsUsable (self, filteredFile) {
var filters = self.config.get('filters');
var enabledFilters = [];
for(var key in filters) {
if(filters[key]) enabledFilters.push(key);
}
var matchedFilters = self._.intersection(filteredFile.filters, enabledFilters);
// check that all filters on file are matched
if(filteredFile.filters.length && matchedFilters.length !== filteredFile.filters.length) {
return false;
}
return true;
}
function processDirectory (self, source, destination) {
var root = self.isPathAbsolute(source) ? source : path.join(self.sourceRoot(), source);
var files = self.expandFiles('**', { dot: true, cwd: root });
var dest, src;
files.forEach(function(f) {
var filteredFile = filterFile(f);
if(self.name) {
filteredFile.name = filteredFile.name.replace('name', self.name);
}
var name = filteredFile.name;
var copy = false, stripped;
src = path.join(root, f);
dest = path.join(destination, name);
if(path.basename(dest).indexOf('_') === 0) {
stripped = path.basename(dest).replace(/^_/, '');
dest = path.join(path.dirname(dest), stripped);
}
if(path.basename(dest).indexOf('!') === 0) {
stripped = path.basename(dest).replace(/^!/, '');
dest = path.join(path.dirname(dest), stripped);
copy = true;
}
if(templateIsUsable(self, filteredFile)) {
if(copy) {
self.copy(src, dest);
} else {
self.template(src, dest);
}
}
});
}