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
54 lines
1.8 KiB
Python
Executable File
54 lines
1.8 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 optparse import OptionParser
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from os import environ, makedirs, path, symlink
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from subprocess import check_call
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try:
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from subprocess import check_output
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except ImportError:
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from subprocess import Popen, PIPE
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def check_output(*cmd):
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return Popen(*cmd, stdout=PIPE).communicate()[0]
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opts = OptionParser()
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opts.add_option('-o', help='path to write WAR to')
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opts.add_option('--lib', action='append', help='target for WEB-INF/lib')
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opts.add_option('--pgmlib', action='append', help='target for WEB-INF/pgm-lib')
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args, ctx = opts.parse_args()
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war = environ['TMP']
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root = war[:war.index('buck-out')]
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jars = set()
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def link_jars(libs, dir):
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makedirs(dir)
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cp = check_output(['buck', 'audit', 'classpath'] + libs)
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for j in cp.strip().splitlines():
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if j not in jars:
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jars.add(j)
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n = path.basename(j)
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if j.startswith('buck-out/gen/gerrit-'):
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n = j.split('/')[2] + '-' + n
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symlink(path.join(root, j), path.join(dir, n))
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if args.lib:
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link_jars(args.lib, path.join(war, 'WEB-INF', 'lib'))
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if args.pgmlib:
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link_jars(args.pgmlib, path.join(war, 'WEB-INF', 'pgm-lib'))
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for s in ctx:
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check_call(['unzip', '-q', '-d', war, s])
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check_call(['zip', '-9qr', args.o, '.'], cwd = war)
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