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New include function #6

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58 changes: 33 additions & 25 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,62 +3,56 @@ var spawn = require('child_process').spawn,

module.exports = exports = create;

function create() {
var _gs = new gs();
function create(inputFile) {
var _gs = new gs(inputFile);
return _gs;
}

function gs() {
function gs(inputFile) {
this.options = [];
this._input = null;
this._input = inputFile;
}

gs.prototype.__proto__ = EventEmitter.prototype;

gs.prototype.batch = function() {
this.options.push('-dBATCH');
return this;
return this.define('BATCH');
};

gs.prototype.diskfonts = function() {
this.options.push('-dDISKFONTS');
return this;
return this.define('DISKFONTS');
};

gs.prototype.nobind = function() {
this.options.push('-dNOBIND');
return this;
return this.define('NOBIND');
};

gs.prototype.nocache = function() {
this.options.push('-dNOCACHE');
return this;
return this.define('NOCACHE');
};

gs.prototype.nodisplay = function() {
this.options.push('-dNODISPLAY');
return this;
return this.define('NODISPLAY');
};

gs.prototype.nopause = function() {
this.options.push('-dNOPAUSE');
return this;
return this.define('NOPAUSE');
};

gs.prototype.command = function(cmd) {
this.options.push('-c', cmd.replace(/(\s)/g,'\ '));
return this;
};

gs.prototype.define = function(key, val) {
this.options.push('-d' + key + (val ? '=' + val : ''));
gs.prototype.define = function(key, val, mod) {
mod = mod || 'd';
this.options.push('-' + mod + key + (val ? '=' + val : ''));
return this;
};

gs.prototype.device = function(dev) {
dev = dev || 'txtwrite';
this.options.push('-sDEVICE=' + dev);
return this;
return this.define('DEVICE', dev, 's');
};

gs.prototype.input = function(file) {
Expand All @@ -73,6 +67,19 @@ gs.prototype.output = function(file) {
return this;
};

gs.prototype.include = function(path) {
if (path == undefined) {
throw new Error('Include path is not specified');
}

if (Array.isArray(path)) {
path = path.join(':');
}

this.options = this.options.concat(['-I', path]);
return this;
}

gs.prototype.quiet = function() {
this.options.push('-q');
return this;
Expand All @@ -88,8 +95,7 @@ gs.prototype.currentDirectory = function() {
gs.prototype.p = gs.prototype.currentDirectory;

gs.prototype.papersize = function(size) {
this.options.push('-sPAPERSIZE=' + size);
return this;
return this.define('PAPERSIZE', size, 's');
};

gs.prototype.resolution = function(xres, yres) {
Expand All @@ -106,8 +112,7 @@ gs.prototype.reset = function() {
};

gs.prototype.safer = function() {
this.options.push('-dSAFER');
return this;
return this.define('SAFER');
};

gs.prototype.exec = function(cb) {
Expand All @@ -121,6 +126,10 @@ gs.prototype.exec = function(cb) {
var _data = [];
var totalBytes = 0;

proc.stderr.on('data', function(data) {
cb(data.toString());
});

proc.stdout.on('data', function(data) {
totalBytes += data.length;
_data.push(data);
Expand Down Expand Up @@ -169,4 +178,3 @@ gs.prototype.pagecount = function(cb) {
return cb.call(self, null, data);
});
};

22 changes: 22 additions & 0 deletions tests/gs.js
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,28 @@ describe('gs', function() {
});
});

describe('#include', function() {
it('should raise an error for null include path', function(done) {
assert.throws(function() { gs().include(); }, Error);
done();
});

it('should set include option', function(done) {
const input = '/opt/my app/Init';
const good = ['-I', '/opt/my app/Init'];

assert.deepEqual(gs().include(input).options, good);
done();
});
it('should set array of include paths', function(done) {
const input = ['/opt/my app/Init', '/tmp', '.'];
const good = ['-I', '/opt/my app/Init:/tmp:.'];

assert.deepEqual(gs().include(input).options, good);
done();
});
});

describe('#device', function() {
it('should set device option with default', function(done) {
assert.deepEqual(gs().device().options, ['-sDEVICE=txtwrite']);
Expand Down