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
107 lines
2.8 KiB
Plaintext
107 lines
2.8 KiB
Plaintext
# 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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GERRIT = 'http://gerrit-maven.commondatastorage.googleapis.com'
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MAVEN_CENTRAL = 'http://repo1.maven.org/maven2'
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def define_license(name):
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n = 'LICENSE-' + name
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genrule(
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name = n,
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cmd = 'ln -s $SRCS $OUT',
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srcs = [n],
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out = n,
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visibility = ['PUBLIC'],
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)
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def maven_jar(
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name,
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id,
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license,
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exclude = [],
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exclude_java_sources = False,
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deps = [],
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sha1 = '', bin_sha1 = '', src_sha1 = '',
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repository = MAVEN_CENTRAL,
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attach_source = True,
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visibility = ['PUBLIC']):
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from os import path
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parts = id.split(':')
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if len(parts) != 3:
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raise NameError('expected id="groupId:artifactId:version"')
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group, artifact, version = parts
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jar = path.join(name, artifact.lower() + '-' + version)
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url = '/'.join([
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repository,
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group.replace('.', '/'), artifact, version,
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artifact + '-' + version])
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binjar = jar + '.jar'
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binurl = url + '.jar'
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srcjar = jar + '-src.jar'
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srcurl = url + '-sources.jar'
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cmd = ['${//tools:download_jar}', '-o', '$OUT', '-u', binurl]
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if sha1:
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cmd.extend(['-v', sha1])
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elif bin_sha1:
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cmd.extend(['-v', bin_sha1])
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for x in exclude:
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cmd.extend(['-x', x])
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if exclude_java_sources:
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cmd.append('--exclude_java_sources')
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genrule(
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name = name + '__download_bin',
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cmd = ' '.join(cmd),
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srcs = [],
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deps = ['//tools:download_jar'],
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out = binjar,
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)
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download = [':' + name + '__download_bin']
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license = ['//lib:LICENSE-' + license]
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if src_sha1 or attach_source:
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cmd = ['${//tools:download_jar}', '-o', '$OUT', '-u', srcurl]
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if src_sha1:
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cmd.extend(['-v', src_sha1])
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genrule(
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name = name + '__download_src',
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cmd = ' '.join(cmd),
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srcs = [],
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deps = ['//tools:download_jar'],
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out = srcjar,
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)
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if src_sha1:
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prebuilt_jar(
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name = name + '_src',
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binary_jar = genfile(srcjar),
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deps = [':' + name + '__download_src'] + license,
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visibility = visibility,
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)
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download.append(':' + name + '__download_src')
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else:
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srcjar = None
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prebuilt_jar(
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name = name,
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deps = deps + download + license,
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binary_jar = genfile(binjar),
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source_jar = genfile(srcjar) if srcjar else None,
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visibility = visibility,
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)
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