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var sys = require("sys");
var fs = require("fs");
var path = require("path");
var childProcess = require("child_process");
var PEGJS_VERSION = fs.readFileSync("VERSION", "utf8").trim();
/* Relative paths are here because of use in |require|. */
var SRC_DIR = "./src";
var LIB_DIR = "./lib";
var BIN_DIR = "./bin";
var EXAMPLES_DIR = "./examples";
var DIST_DIR = "./dist";
var DIST_WEB_DIR = "./dist/web";
var DIST_NODE_DIR = "./dist/node";
var PEGJS = BIN_DIR + "/pegjs";
var PEGJS_SRC_FILE = SRC_DIR + "/peg.js";
var PEGJS_OUT_FILE = LIB_DIR + "/peg.js";
var PEGJS_DIST_FILE = DIST_WEB_DIR + "/peg-" + PEGJS_VERSION + ".js"
var PEGJS_DIST_MIN_FILE = DIST_WEB_DIR + "/peg-" + PEGJS_VERSION + ".min.js"
var PARSER_SRC_FILE = SRC_DIR + "/parser.pegjs";
var PARSER_OUT_FILE = SRC_DIR + "/parser.js";
function exitFailure() {
process.exit(1);
}
function abort(message) {
sys.error(message);
exitFailure();
}
function mkdirUnlessExists(dir) {
try {
fs.statSync(dir);
} catch (e) {
fs.mkdirSync(dir, 0755);
}
}
function copyFile(src, dest) {
fs.writeFileSync(dest, fs.readFileSync(src));
}
function copyDir(src, dest) {
mkdirUnlessExists(dest);
fs.readdirSync(src).every(function(file) {
var srcFile = src + "/" + file;
var destFile = dest + "/" + file;
var stats = fs.statSync(srcFile);
if (stats.isDirectory()) {
copyDir(srcFile, destFile);
} else {
copyFile(srcFile, destFile);
fs.chmodSync(destFile, stats.mode);
}
return true;
});
}
function removeDir(dir) {
fs.readdirSync(dir).every(function(file) {
var file = dir + "/" + file;
var stats = fs.statSync(file);
if (stats.isDirectory()) {
removeDir(file);
} else {
fs.unlinkSync(file);
}
return true;
});
fs.rmdirSync(dir);
}
function preprocess(file) {
var input = fs.readFileSync(file, "utf8").trim();
return input.split("\n").map(function(line) {
var matches = /^\s*\/\/\s*@include\s*"([^"]*)"\s*$/.exec(line);
if (matches !== null) {
var includedFile = SRC_DIR + "/" + matches[1];
try {
fs.statSync(includedFile);
} catch (e) {
abort("Included file \"" + includedFile + "\" does not exist.");
}
return preprocess(includedFile);
} else {
return line;
}
}).join("\n").replace(/@VERSION/g, PEGJS_VERSION);
}
desc("Generate the grammar parser");
task("parser", [], function() {
var PEG = require(PEGJS_OUT_FILE);
var input = fs.readFileSync(PARSER_SRC_FILE, "utf8");
try {
var parser = PEG.buildParser(input);
} catch (e) {
if (e.line !== undefined && e.column !== undefined) {
abort(e.line + ":" + e.column + ": " + e.message);
} else {
abort(e.message);
}
}
fs.writeFileSync(PARSER_OUT_FILE, "PEG.parser = " + parser.toSource() + ";\n");
});
desc("Build the peg.js file");
task("build", [], function() {
mkdirUnlessExists(LIB_DIR);
fs.writeFileSync(PEGJS_OUT_FILE, preprocess(PEGJS_SRC_FILE), "utf8");
});
desc("Remove built peg.js file (created by \"build\")");
task("clean", [], function() {
removeDir(LIB_DIR);
});
desc("Prepare the distribution files");
task("dist", ["build"], function() {
mkdirUnlessExists(DIST_DIR);
/* Web */
mkdirUnlessExists(DIST_WEB_DIR);
copyFile(PEGJS_OUT_FILE, PEGJS_DIST_FILE);
var process = childProcess.spawn(
"uglifyjs",
["--ascii", "-o", PEGJS_DIST_MIN_FILE, PEGJS_OUT_FILE],
{ customFds: [0, 1, 2] }
);
process.on("exit", function() { complete(); });
/* Node.js */
mkdirUnlessExists(DIST_NODE_DIR);
copyDir(LIB_DIR, DIST_NODE_DIR + "/lib");
copyDir(BIN_DIR, DIST_NODE_DIR + "/bin");
copyDir(EXAMPLES_DIR, DIST_NODE_DIR + "/examples");
copyFile("CHANGELOG", DIST_NODE_DIR + "/CHANGELOG");
copyFile("LICENSE", DIST_NODE_DIR + "/LICENSE");
copyFile("README.md", DIST_NODE_DIR + "/README.md");
copyFile("VERSION", DIST_NODE_DIR + "/VERSION");
fs.writeFileSync(DIST_NODE_DIR + "/package.json", preprocess("package.json"), "utf8");
}, true);
desc("Remove the distribution files (created by \"dist\")");
task("distclean", [], function() {
removeDir(DIST_DIR);
});
desc("Run the test suite");
task("test", ["build"], function() {
var process = childProcess.spawn("test/run", [], { customFds: [0, 1, 2] });
process.on("exit", function() { complete(); });
}, true);
desc("Run the benchmark suite");
task("benchmark", ["build"], function(runCount) {
var process = childProcess.spawn(
"benchmark/run",
runCount !== undefined ? [runCount] : [],
{ customFds: [0, 1, 2] }
);
process.on("exit", function() { complete(); });
}, true);
task("default", ["build"], function() {});