fd6bb9f6a5
Implement a new build system using Buck[1], Facebook's
open source clone of Google's internal build system.
Pros:
- Concise build language
- Test and build output is concise
- Test failures and stack traces show on terminal
- Reliable incrementals; clean is unnecessary
- Extensible with simple blocks of Python
- Fast
buck: clean: 0.452s, full 1m21.083s [*], no-op: 7.145s,
mvn: clean: 4.596s, full 2m53.776s, no-op: 59.108s,
[*] full build includes downloading all dependencies,
time can vary due to remote server performance.
Cons:
- No Windows support
- No native Maven Central support (added by macros)
- No native GWT, Prolog, or WAR support (added by macros)
- Bootstrap of buck requires Ant
Getting started:
git clone https://gerrit.googlesource.com/buck
cd buck
ant
Mac OS X:
PATH="`pwd`/bin:/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands:$PATH"
Linux:
PATH="`pwd`/bin:$PATH"
Importing into Eclipse:
$ time buck build :eclipse
0m48.949s
Import existing project from `pwd`
Import 'gerrit' (do not import other Maven based projects)
Expand 'gerrit'
Right click 'buck-out' > Properties
Under Attributes check 'Derived'
If the code doesn't currently compile but an updated classpath
is needed, refresh the configs and obtain missing JARs:
$ buck build :eclipse_project :download
Running JUnit tests:
$ time buck test --all -e slow # skip slow tests
0m19.320s
$ time buck test --all # includes acceptance tests
5m17.517s
Building WAR:
$ buck build :gerrit
$ java -jar buck-out/gen/gerrit.war
Building release:
$ buck test --all && buck build :api :release
$ java -jar buck-out/gen/release.war
$ ls -lh buck-out/gen/{extension,plugin}-api.jar
Downloading dependencies:
Dependencies are normally downloaded automatically, but Buck can
inspect its graph and download missing dependencies so future
compiles can run without the network:
$ buck build :download
[1] http://facebook.github.io/buck/
Change-Id: I40853b108bd8e153cefa0896a5280a9a5ff81655
69 lines
2.0 KiB
Python
Executable File
69 lines
2.0 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright (C) 2013 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from multiprocessing import cpu_count
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from os import environ, fchmod, makedirs, mkdir, path
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from subprocess import Popen, PIPE
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from sys import argv, stderr
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cp, opt, end, TMP = [], [], False, environ['TMP']
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module, outzip = argv[1], argv[2]
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for a in argv[3:]:
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if end:
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if a.endswith('.jar'):
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cp.append(a)
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elif a == '--':
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end = True
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else:
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opt.append(a)
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if not outzip.endswith('.zip'):
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print >>stderr, "%s must end with .zip" % outzip
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exit(1)
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rebuild = outzip[:-4] + '.rebuild'
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for d in ['deploy', 'unit_cache', 'work']:
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mkdir(path.join(TMP, d))
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if not path.exists(path.dirname(outzip)):
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makedirs(path.dirname(outzip))
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cmd = [
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'java', '-Xmx512m',
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'-Djava.io.tmpdir=' + TMP,
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'-Dgwt.normalizeTimestamps=true',
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'-Dgwt.persistentunitcachedir=' + path.join(TMP, 'unit_cache'),
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'-classpath', ':'.join(cp),
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'com.google.gwt.dev.Compiler',
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'-deploy', path.join(TMP, 'deploy'),
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'-workDir', path.join(TMP, 'work'),
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'-war', outzip,
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'-localWorkers', str(cpu_count()),
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] + opt + [module]
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gwt = Popen(cmd, stdout = PIPE, stderr = PIPE)
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out, err = gwt.communicate()
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if gwt.returncode != 0:
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print >>stderr, out + err
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exit(gwt.returncode)
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with open(rebuild, 'w') as fd:
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def shquote(s):
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return s.replace("'", "'\\''")
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print >>fd, '#!/bin/sh'
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print >>fd, "PATH='%s'" % shquote(environ['PATH'])
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print >>fd, 'buck build "$1" || exit'
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fchmod(fd.fileno(), 0755)
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