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feat: initial working version of the plugin
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almogtavor committed Jul 9, 2022
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3 changes: 3 additions & 0 deletions .gitignore
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.gradle
build
.idea
122 changes: 122 additions & 0 deletions README.md
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#🏗️ Auto Composite Build

A Gradle plugin that can be used to prevent the paths references problem of the Gradle's composite build feature.
Currently, composite builds works in such way that if a team uses this for a common logic project,
all the participants' computers need to clone the common logic project & the projects that use it in the exact same way.

### A demonstration for the problem of Gradle's composite build:
Let's assume one computer #1 cloned project `common-logic` to `C:\\code\common-logic` and uses it in `C:\\code\service1`.
```
computer #1
└── C:\\
└── code
├── common-logic
└── service1
```
So `C:\\code\service1` will have the line of `include("../common-logic")`
or `include("C:\\code\common-logic")` on `settings.gradle`.
<br>Another had the following hierarchy.
```
computer #2
└── C:\\
├── my-code
│ └── common-logic
└── service1
```
So `C:\\service1` will need to have the line of `include("../my-code/common-logic")`
or `include("C:\\my-code\common-logic")` on `settings.gradle`.
<br>In both declarations, if the `settings.gradle` file will get uploaded to Git, the Gradle's composite build feature will break.

## How Auto Composite Build solved this?
The Auto Composite Build plugin registers `common-logic` to a global file inside the user's home.
Projects can query the module from the file, and it doesn't matter the structure of the projects on the developer's computer.
```
computer #1
└── C:\\
├── my-code
│ └── common-logic
├── service1
└── Users
└── OurExampleUser
└── .auto-composite-build
└── git.details
```

## Usage

#### Kotlin DSL

`build.gradle`
```kotlin
plugins {
id ("auto-composite-build") version ("1.0-SNAPSHOT")
}

autoCompositeBuild {
modulesNames = listOf("my-first-app", "my-second-app")
dslLang = io.github.almogtavor.DslLang.KOTLIN
}
```

In the kotlin-based `settings.gradle.kts`:
```kotlin
import java.io.File

var compositeBuildFileName = "composite-build.gradle.kts"
if (file(compositeBuildFileName).exists()) {
apply {
from(compositeBuildFileName)
}
if (extra.has("modulesPaths")) {
@Suppress("UNCHECKED_CAST")
for (modulePath: String in (extra["modulesPaths"] as List<String>)) {
if (File(modulePath).exists()) {
includeBuild(modulePath)
}
}
}
}
```

#### Groovy DSL

`build.gradle`
```groovy
plugins {
id "auto-composite-build" version "1.0.0"
}
autoCompositeBuild {
modulesNames = List.of('my-first-app', 'my-second-app')
dslLang = "groovy"
}
```

In the groovy-based `settings.gradle`:
```groovy
def compositeBuildFileName = 'composite-build.gradle'
if (file(compositeBuildFileName).exists()) {
apply from: compositeBuildFileName
if (modulesPaths != null) {
for (modulePath in modulesPaths) {
includeBuild(modulePath)
}
}
}
```

## Available Tasks

* `./gradlew addRepoToGitDetails` - Adds the current repository to the local `.gradle-auto-composite-build` folder.<br>
**You should run this task for every project you'd like to include as composite build.**
* `./gradlew includeModulesAsCompositeBuilds` - This task generates the `composite-build.gradle` or `composite-build.gradle.kts`
that holds the paths for the modules that should be included.<br>
This task must run only after you've run `addRepoToGitDetails` in all the modules that you've configured to include.
* `./gradlew deleteGitDetails` - Should not be used. This was implemented only for edge cases.
This task deletes the `git-details` file.

### Limitations

In case of moving the path of the repository of a module that is included as a composite build, the plugin will throw an error.
To get away with this you should rerun the `./gradlew addRepoToGitDetails` task.
In edge cases there's `./gradlew deleteGitDetails` which will allow you to delete your local's `git.details` file.
31 changes: 31 additions & 0 deletions build.gradle
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plugins {
id 'java-gradle-plugin'
id "com.gradle.plugin-publish" version "1.0.0"
id 'idea'
}

group = 'io.github.almogtavor'
version = '1.0.0'


// Specify plugin properties that apply to the whole publishing bundle (ie. all plugins in the current publication).
pluginBundle { // Removed in Gradle 8+
vcsUrl = 'https://github.com/almogtavor/auto-composite-build'

// Individual tags for published plugins; overrides bundle tags for the mentioned plugins.
// The keys used to specify the plugins must match the names of the blocks in 'gradlePlugin.plugins' (see below).
pluginTags = [
autoCompositeBuildPlugin: ['gradle', 'composite-build']
]
}

gradlePlugin {
plugins {
autoCompositeBuildPlugin {
id = 'auto-composite-build'
implementationClass = 'io.github.almogtavor.AutoCompositeBuildPlugin'
displayName = 'A Gradle plugin to automate the process of working with composite builds'
description = 'This Gradle plugin let you easily use composite build within a team.'
}
}
}
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5 changes: 5 additions & 0 deletions gradle/wrapper/gradle-wrapper.properties
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
185 changes: 185 additions & 0 deletions gradlew
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#!/usr/bin/env sh

#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################

# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null

APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`

# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'

# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"

warn () {
echo "$*"
}

die () {
echo
echo "$*"
echo
exit 1
}

# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MSYS* | MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac

CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar


# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi

# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi

# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi

# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`

JAVACMD=`cygpath --unix "$JAVACMD"`

# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option

if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=`expr $i + 1`
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi

# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`

# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"

exec "$JAVACMD" "$@"
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