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pegjs
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Replace Jakefile with Makefile

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Doing scripting tasks in JavaScript is painful.
redux
David Majda 13 years ago
parent ed45a1808e
commit bc5abfef5c
4 changed files with 147 additions and 247 deletions
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244
Jakefile
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@ -1,244 +0,0 @@
var util = require("util");
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 TEST_DIR = "./test";
var BENCHMARK_DIR = "./benchmark";
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 SRC_FILES = fs.readdirSync(SRC_DIR).filter(function(file) {
return /\.js$/.test(file);
}).map(function(file) {
return SRC_DIR + "/" + file;
});
var TEST_FILES = fs.readdirSync(TEST_DIR).filter(function(file) {
return /-test\.js$/.test(file);
}).map(function(file) {
return TEST_DIR + "/" + file;
});
var TEST_HELPERS_FILE = TEST_DIR + "/helpers.js";
var TEST_RUN_FILE = TEST_DIR + "/run";
var BENCHMARK_BENCHMARKS_FILE = BENCHMARK_DIR + "/benchmarks.js";
var BENCHMARK_RUNNER_FILE = BENCHMARK_DIR + "/runner.js";
var BENCHMARK_INDEX_FILE = BENCHMARK_DIR + "/index.js";
var BENCHMARK_RUN_FILE = BENCHMARK_DIR + "/run";
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";
var JAKEFILE = "./Jakefile";
function exitFailure() {
process.exit(1);
}
function abort(message) {
util.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 dirExists(dir) {
try {
var stats = fs.statSync(file);
} catch (e) {
return false;
}
return stats.isDirectory();
}
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() {
if (dirExists(LIB_DIR)) {
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() {
if (dirExists(DIST_DIR)) {
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);
desc("Run JSHint");
task("hint", ["build"], function() {
var process = childProcess.spawn(
"jshint",
SRC_FILES.concat(TEST_FILES).concat([
TEST_HELPERS_FILE,
TEST_RUN_FILE,
BENCHMARK_BENCHMARKS_FILE,
BENCHMARK_RUNNER_FILE,
BENCHMARK_INDEX_FILE,
BENCHMARK_RUN_FILE,
PEGJS,
JAKEFILE
]),
{ customFds: [0, 1, 2] }
);
process.on("exit", function() { complete(); });
}, true);
task("default", ["build"], function() {});

145
Makefile
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@ -0,0 +1,145 @@
# ===== Directories =====
SRC_DIR = src
BIN_DIR = bin
TEST_DIR = test
BENCHMARK_DIR = benchmark
EXAMPLES_DIR = examples
LIB_DIR = lib
DIST_DIR = dist
DIST_WEB_DIR = $(DIST_DIR)/web
DIST_NODE_DIR = $(DIST_DIR)/node
# ===== Files =====
PARSER_SRC_FILE = $(SRC_DIR)/parser.pegjs
PARSER_OUT_FILE = $(SRC_DIR)/parser.js
PEGJS_SRC_FILE = $(SRC_DIR)/peg.js
PEGJS_LIB_FILE = $(LIB_DIR)/peg.js
PACKAGE_JSON_SRC_FILE = package.json
PACKAGE_JSON_DIST_FILE = $(DIST_NODE_DIR)/package.json
PEGJS_DIST_FILE_DEV = $(DIST_WEB_DIR)/peg-$(PEGJS_VERSION).js
PEGJS_DIST_FILE_MIN = $(DIST_WEB_DIR)/peg-$(PEGJS_VERSION).min.js
CHANGELOG_FILE = CHANGELOG
LICENSE_FILE = LICENSE
README_FILE = README.md
VERSION_FILE = VERSION
# ===== Executables =====
JSHINT = jshint
UGLIFYJS = uglifyjs
PEGJS = $(BIN_DIR)/pegjs
TEST_RUN = $(TEST_DIR)/run
BENCHMARK_RUN = $(BENCHMARK_DIR)/run
# ===== Variables =====
PEGJS_VERSION = `cat $(VERSION_FILE)`
# ===== Preprocessor =====
# A simple preprocessor that recognizes two directives:
#
# @VERSION -- insert PEG.js version
# @include "<file>" -- include <file> here
#
# This could have been implemented many ways. I chose Perl because everyone will
# have it.
PREPROCESS=perl -e ' \
use strict; \
use warnings; \
\
use File::Basename; \
\
open(my $$f, "$(VERSION_FILE)") or die "Can\x27t open $(VERSION_FILE): $$!"; \
my $$PEGJS_VERSION = <$$f>; \
close($$f); \
chomp($$PEGJS_VERSION); \
\
sub preprocess { \
my $$file = shift; \
my $$output = ""; \
\
open(my $$f, $$file) or die "Can\x27t open $$file: $$!"; \
while(<$$f>) { \
s/\@VERSION/$$PEGJS_VERSION/g; \
\
if (/^\s*\/\/\s*\@include\s*"([^"]*)"\s*$$/) { \
$$output .= preprocess(dirname($$file) . "/" . $$1); \
next; \
} \
\
$$output .= $$_; \
} \
close($$f); \
\
return $$output; \
} \
\
print preprocess($$ARGV[0]); \
'
# ===== Targets =====
# Generate the grammar parser
parser:
$(PEGJS) --export-var PEG.parser $(PARSER_SRC_FILE) $(PARSER_OUT_FILE)
# Build the PEG.js library
build:
mkdir -p $(LIB_DIR)
$(PREPROCESS) $(PEGJS_SRC_FILE) > $(PEGJS_LIB_FILE)
# Remove built PEG.js library (created by "build")
clean:
rm -rf $(LIB_DIR)
# Prepare dstribution files
dist: build
# Web
mkdir -p $(DIST_WEB_DIR)
cp $(PEGJS_LIB_FILE) $(PEGJS_DIST_FILE_DEV)
$(UGLIFYJS) --ascii -o $(PEGJS_DIST_FILE_MIN) $(PEGJS_LIB_FILE)
# Node.js
mkdir -p $(DIST_NODE_DIR)
cp -r \
$(LIB_DIR) \
$(BIN_DIR) \
$(EXAMPLES_DIR) \
$(CHANGELOG_FILE) \
$(LICENSE_FILE) \
$(README_FILE) \
$(VERSION_FILE) \
$(DIST_NODE_DIR)
$(PREPROCESS) $(PACKAGE_JSON_SRC_FILE) > $(PACKAGE_JSON_DIST_FILE)
# Remove distribution file (created by "dist")
distclean:
rm -rf $(DIST_DIR)
# Run the test suite
test: build
$(TEST_RUN)
# Run the benchmark suite
benchmark: build
$(BENCHMARK_RUN)
# Run JSHint on the source
hint: build
$(JSHINT) \
$(SRC_DIR)/*.js \
$(TEST_DIR)/*.js \
$(TEST_RUN) \
$(BENCHMARK_DIR)/*.js \
$(BENCHMARK_RUN) \
$(PEGJS)
.PHONY: test benchmark hint parser build clean dist distclean
.SILENT: test benchmark hint parser build clean dist distclean

1
package.json
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@ -15,7 +15,6 @@
"url": "http://github.com/dmajda/pegjs.git"
},
"devDependencies": {
"jake": ">= 0.1.22",
"uglify-js": ">= 1.2.4",
"jshint": ">= 0.5.5"
},

4
tools/impact
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@ -9,11 +9,11 @@ set -e
prepare() {
git checkout --quiet "$1"
jake build
make build
}
run_benchmark() {
echo $(jake benchmark | awk 'BEGIN { FS = " *│ *" } /Total/ { split($5, a, " "); print a[1] }')
echo $(make benchmark | awk 'BEGIN { FS = " *│ *" } /Total/ { split($5, a, " "); print a[1] }')
}
measure_speed() {

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