gradle-replacer
Gradle plugin that provides a minimalistic template engine feature.
TL;DR
You can maintain any configuration files with "properties" format.
The plugin copies files from templates and replaces tags with properties for each configurations.
src/main/templates/config.xml
src/dev/build.properties
src/production/build.properties
↓
build/outputs/dev/config.xml
build/outputs/production/config.xml
Example
Build script
build.gradle
buildscript {
repositories {
maven {
url uri('https://oss.sonatype.org/content/repositories/snapshots/')
}
}
dependencies {
classpath 'com.github.ksoichiro:gradle-replacer:0.1.0-SNAPSHOT'
}
}
apply plugin: 'com.github.ksoichiro.replacer'
replacer {
configurations {
dev
production
}
}
Inputs
src/main/templates/config.xml
<server>
<url>@SERVER_URL@</url>
<port>@SERVER_PORT@</port>
</server>
src/main/build.properties
SERVER_URL=ssl://192.168.100.56
SERVER_PORT=9900
src/production/build.properties
SERVER_URL=ssl://example.com
SERVER_PORT=9901
Execution
$ ./gradlew replacerGenerate
Outputs
build/outputs/dev/config.xml
<server>
<url>ssl://192.168.100.56</url>
<port>9900</port>
</server>
build/outputs/production/config.xml
<server>
<url>ssl://example.com</url>
<port>9901</port>
</server>
Usage
Tasks
Clean
Deletes build/outputs
and build/archives
directory.
$ ./gradlew replacerClean
Generate (Copy and replace)
Copies source files and replace tags.
$ ./gradlew replacerGenerate
Archive
Archives the generated sources.
This depends on replacerGenerate
task.
$ ./gradlew replacerArchive
Configurations
replacer {
// Definition of the targets:
// e.g. develop, staging, production
// You need to define them at least one.
configurations {
// These are treated as closures.
// You can omit {}.
dev {
}
production
}
// Source directory
srcDir = "src"
// Base source directory under srcDir
srcMainDir = "main"
// Template files directory under srcMainDir
// or srcDir/<configuration name>/
templateDir = "templates"
// Generated files directory under build
outputDir = "outputs"
// Archived files directory under build
archiveDir = "archives"
// Properties file directory under templateDir
properties = "build.properties"
// DateFormat used for directory name under archiveDir
archiveIdFormat = "yyyyMMddHHmmss"
// Archive types for "replacerArchive" task.
// Available type: zip, gzip, bzip2
archiveType = "zip"
// Files to be excluded
excludes = [ ".gitkeep", ".swp" ]
}
Why?
-
I have had to maintain some configuration files for multiple environments. All the config files have same structure and almost all contents are identical. Only some values are different. Therefore, I wanted some tools to manage them with one template file and multiple properties files.
The tool should be:- Easy to set up
- Easy to maintain configurations
In my team, most project members have Java environment, so I thought the Gradle plugin is the best for that purpose.
-
Gradle (groovy) has template engines, but they are too functional.
I wanted more intelligible, simple tool.
Also, I didn't want the tool to require scripts or complex setting files.
Just install, write minimum configurations and execute.
License
Copyright (c) 2015 Soichiro Kashima
Licensed under MIT license.
See the bundled LICENSE file for details.