├── settings.gradle ├── .gitignore ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── src ├── main │ └── kotlin │ │ └── com.anupcowkur.statelin │ │ ├── Trigger.kt │ │ ├── State.kt │ │ ├── TriggerHandler.kt │ │ └── Machine.kt └── test │ └── kotlin │ └── com │ └── anupcowkur │ └── statelin │ └── MachineTest.kt ├── .circleci └── config.yml ├── LICENSE.txt ├── deploy.gradle ├── gradlew.bat ├── README.md └── gradlew /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'statelin' 2 | 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | .idea 4 | /local.properties 5 | .DS_Store 6 | build 7 | out 8 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/anupcowkur/Statelin/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /src/main/kotlin/com.anupcowkur.statelin/Trigger.kt: -------------------------------------------------------------------------------- 1 | package com.anupcowkur.statelin 2 | 3 | data class Trigger(val name: String) -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Fri Jan 26 14:55:59 IST 2018 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip 7 | -------------------------------------------------------------------------------- /src/main/kotlin/com.anupcowkur.statelin/State.kt: -------------------------------------------------------------------------------- 1 | package com.anupcowkur.statelin 2 | 3 | class State(private val name: String, internal val onEnter: (() -> Unit)? = null, internal val onExit: (() -> Unit)? = null) { 4 | 5 | override fun hashCode() = name.hashCode() 6 | 7 | override fun equals(other: Any?) = other is State && other.name == name 8 | } -------------------------------------------------------------------------------- /src/main/kotlin/com.anupcowkur.statelin/TriggerHandler.kt: -------------------------------------------------------------------------------- 1 | package com.anupcowkur.statelin 2 | 3 | data class TriggerHandler(val state: State, 4 | val trigger: Trigger, 5 | val handler: () -> Unit) { 6 | 7 | override fun hashCode() = state.hashCode() * 31 + trigger.hashCode() 8 | 9 | override fun equals(other: Any?) = other is TriggerHandler && other.state == state && other.trigger == trigger 10 | } -------------------------------------------------------------------------------- /.circleci/config.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | jobs: 3 | build: 4 | docker: 5 | - image: circleci/openjdk:8-jdk 6 | 7 | working_directory: ~/repo 8 | 9 | environment: 10 | JVM_OPTS: -Xmx3200m 11 | TERM: dumb 12 | 13 | steps: 14 | - checkout 15 | 16 | # Download and cache dependencies 17 | - restore_cache: 18 | keys: 19 | - v1-dependencies-{{ checksum "build.gradle" }} 20 | # fallback to using the latest cache if no exact match is found 21 | - v1-dependencies- 22 | 23 | - run: ./gradlew dependencies 24 | 25 | - save_cache: 26 | paths: 27 | - ~/.gradle 28 | key: v1-dependencies-{{ checksum "build.gradle" }} 29 | 30 | # run tests 31 | - run: ./gradlew test 32 | -------------------------------------------------------------------------------- /src/main/kotlin/com.anupcowkur.statelin/Machine.kt: -------------------------------------------------------------------------------- 1 | package com.anupcowkur.statelin 2 | 3 | class Machine(state: State) { 4 | var state: State = state 5 | set(value) { 6 | if (state == value) { 7 | return 8 | } 9 | 10 | state.onExit?.invoke() 11 | field = value 12 | state.onEnter?.invoke() 13 | } 14 | 15 | internal val eventHandlers = mutableSetOf() 16 | 17 | init { 18 | state.onEnter?.invoke() 19 | } 20 | 21 | fun addTriggerHandler(triggerHandler: TriggerHandler) { 22 | if (!eventHandlers.add(triggerHandler)) { 23 | throw IllegalArgumentException("TriggerHandler ${triggerHandler.state} -> ${triggerHandler.trigger} is already added") 24 | } 25 | } 26 | 27 | fun trigger(trigger: Trigger) { 28 | eventHandlers.firstOrNull { it.state == state && it.trigger == trigger }?.handler?.invoke() 29 | } 30 | 31 | } -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | Copyright (c) 2018 Anup Cowkur 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 4 | documentation files (the "Software"), to deal in the Software without restriction, including without limitation the 5 | rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 6 | permit persons to whom the Software is furnished to do so, subject to the following conditions: 7 | 8 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the 9 | Software. 10 | 11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 12 | WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 13 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 14 | OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -------------------------------------------------------------------------------- /deploy.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'maven' 2 | apply plugin: 'com.jfrog.bintray' 3 | ext { 4 | groupId = 'com.anupcowkur' 5 | artifactId = "statelin" 6 | libVersion = "0.1.0" 7 | } 8 | version = libVersion 9 | group = groupId 10 | bintray { 11 | user = 'anupcowkur' 12 | key = System.getenv('BINTRAY_KEY') 13 | configurations = ['archives'] 14 | publish = true 15 | pkg { 16 | repo = "maven" 17 | name = "statelin" 18 | version { 19 | name = libVersion 20 | } 21 | } 22 | } 23 | install { 24 | repositories.mavenInstaller { 25 | pom.project { 26 | packaging 'jar' 27 | groupId groupId 28 | artifactId artifactId 29 | version libVersion 30 | name artifactId 31 | } 32 | } 33 | } 34 | 35 | task sourcesJar(type: Jar) { 36 | classifier = 'sources' 37 | from sourceSets.main.kotlin.srcDirs 38 | } 39 | 40 | task javadocJar(type: Jar, dependsOn: dokka) { 41 | classifier = 'javadoc' 42 | from javadoc.destinationDir 43 | } 44 | 45 | artifacts { 46 | archives javadocJar 47 | archives sourcesJar 48 | } -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /src/test/kotlin/com/anupcowkur/statelin/MachineTest.kt: -------------------------------------------------------------------------------- 1 | package com.anupcowkur.statelin 2 | 3 | import io.kotlintest.matchers.shouldBe 4 | import io.kotlintest.matchers.shouldThrow 5 | import io.kotlintest.specs.StringSpec 6 | 7 | class MachineTest : StringSpec() { 8 | 9 | init { 10 | 11 | "Should add trigger handlers" { 12 | val stateA = State("A") 13 | val stateB = State("B") 14 | 15 | val triggerX = Trigger("TriggerX") 16 | val triggerY = Trigger("TriggerY") 17 | 18 | val machine = Machine(stateA) 19 | 20 | machine.addTriggerHandler(TriggerHandler(stateA, triggerX, {})) 21 | machine.addTriggerHandler(TriggerHandler(stateB, triggerY, {})) 22 | 23 | machine.eventHandlers.size shouldBe 2 24 | } 25 | 26 | "Should throw exception on duplicate trigger handlers" { 27 | val stateA = State("A", {}, {}) 28 | val stateADuplicate = State("A", {}, {}) 29 | 30 | val triggerX = Trigger("TriggerX") 31 | 32 | val machine = Machine(stateA) 33 | 34 | // Add valid trigger handler 35 | machine.addTriggerHandler(TriggerHandler(stateA, triggerX, {})) 36 | 37 | val exception = shouldThrow { 38 | // Add same trigger handler again 39 | machine.addTriggerHandler(TriggerHandler(stateADuplicate, triggerX, {})) 40 | } 41 | 42 | exception.message shouldBe "TriggerHandler $stateA -> $triggerX is already added" 43 | } 44 | 45 | "Should invoke trigger handler on trigger" { 46 | val stateA = State("A") 47 | 48 | val triggerX = Trigger("TriggerX") 49 | 50 | val machine = Machine(stateA) 51 | 52 | var invocationCounter = 0 53 | machine.addTriggerHandler(TriggerHandler(stateA, triggerX, { invocationCounter++ })) 54 | 55 | machine.trigger(triggerX) 56 | 57 | invocationCounter shouldBe 1 58 | } 59 | 60 | "Should invoke onEnter on state entry" { 61 | var invocationCounter = 0 62 | val stateA = State("A", onEnter = { invocationCounter++ }) 63 | val stateB = State("B", onEnter = { invocationCounter++ }) 64 | 65 | // Initial state is A 66 | val machine = Machine(stateA) 67 | 68 | // onEnter should be called 69 | invocationCounter shouldBe 1 70 | 71 | // Set same state 72 | machine.state = stateA 73 | 74 | // onEnter should not be called 75 | invocationCounter shouldBe 1 76 | 77 | // Set different state 78 | machine.state = stateB 79 | 80 | // onEnter should be called 81 | invocationCounter shouldBe 2 82 | } 83 | 84 | "Should invoke onExit on state exit" { 85 | var invocationCounter = 0 86 | val stateA = State("A", onExit = { invocationCounter++ }) 87 | val stateB = State("B") 88 | 89 | // Initial state is A 90 | val machine = Machine(stateA) 91 | 92 | // onExit should not be called 93 | invocationCounter shouldBe 0 94 | 95 | // Set same state 96 | machine.state = stateA 97 | 98 | // onExit should not be called 99 | invocationCounter shouldBe 0 100 | 101 | // Set different state 102 | machine.state = stateB 103 | 104 | // onExit should be called 105 | invocationCounter shouldBe 1 106 | } 107 | 108 | } 109 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Deprecated 2 | This project is no longer maintained. No new issues or pull requests will be accepted. You can still use the source or fork the project to suit your needs. 3 | 4 | # Statelin 5 | [![CircleCI](https://circleci.com/gh/anupcowkur/statelin.svg?style=svg&circle-token=1ded70d2f302eaa1ca4a304c084d8d3ef9c7171d)](https://circleci.com/gh/anupcowkur/statelin) 6 | 7 | Statelin is a finite state machine implemented purely in Kotlin. 8 | 9 | # Installation 10 | 11 | MAVEN 12 | 13 | ```xml 14 | 15 | 16 | jcenter 17 | https://jcenter.bintray.com/ 18 | 19 | 20 | ``` 21 | 22 | ```xml 23 | 24 | com.anupcowkur 25 | statelin 26 | 0.1.0 27 | 28 | ``` 29 | 30 | GRADLE 31 | 32 | ```groovy 33 | repositories { 34 | jcenter() 35 | } 36 | ``` 37 | 38 | ```groovy 39 | compile 'com.anupcowkur:statelin:0.1.0' 40 | ``` 41 | 42 | # Usage 43 | Create a machine with an initial state: 44 | 45 | ```kotlin 46 | val stateA = State("A") 47 | val machine = Machine(stateA) 48 | ``` 49 | 50 | Create a new state with optional enter and exit callbacks: 51 | 52 | ```kotlin 53 | val stateB = State(name = "B", 54 | onEnter = { print("Entering state B") }, 55 | onExit = { print("Exiting state B") }) 56 | ``` 57 | 58 | Transition from A to B: 59 | 60 | ```kotlin 61 | machine.state = stateB // "Entering state B" will be printed 62 | ``` 63 | 64 | Add a trigger with a handler: 65 | 66 | ```kotlin 67 | val onSubmitClick = Trigger("onSubmitClick") 68 | machine.addTriggerHandler(TriggerHandler(stateB, onSubmitClick, { 69 | // Do whatever. Handle business logic, set a new state etc 70 | })) 71 | ``` 72 | 73 | **Note:** There can be only one trigger handlers for each state and trigger pair. 74 | i.e. `stateA` and `triggerX` can have only one handler. Adding another handler for the 75 | same state and trigger will throw an exception. 76 | 77 | That's all there is to know! 78 | 79 | # What can I use this for? 80 | State machines are useful for modeling any kind of stateful UI or business 81 | logic. Let's look at an example. 82 | 83 | Let's model an autocompleting search box like google search. 84 | 85 | - Our machine will be initialized in `Init` state. 86 | - Once users enter a text, we will trigger `onTextEntered` and put it into the `Loading` state. 87 | - Once we have the results from an API call, we can put the machine into a `Showing results` state. 88 | - If new text is entered, we will trigger `onTextEntered` again and the process repeats. 89 | 90 | Our states will be: 91 | 92 | ```kotlin 93 | val stateInit = State("Init") 94 | val stateShowingResults = State(name = "Showing results", 95 | onEnter = { 96 | populateOrUpdateList() 97 | }) 98 | val stateLoading = State(name = "Loading", 99 | onEnter = { 100 | setUiToLoading() 101 | results = callAPI() 102 | machine.state = stateShowingResults 103 | }) 104 | ``` 105 | 106 | Our triggers will be: 107 | 108 | ```kotlin 109 | val triggerOnTextEntered = Trigger("onTextEntered") 110 | ``` 111 | 112 | 113 | And here's our machine and trigger handlers: 114 | 115 | ```kotlin 116 | val machine = Machine(stateInit) 117 | 118 | machine.addTriggerHandler(TriggerHandler(stateInit, triggerOnTextEntered, { 119 | machine.state = stateLoading 120 | })) 121 | machine.addTriggerHandler(TriggerHandler(stateShowingResults, triggerOnTextEntered, { 122 | machine.state = stateLoading 123 | })) 124 | ``` 125 | 126 | State machines allow us to explicitly model the possible states and transitions of 127 | our applications. This allows us to define what's possible in the system upfront 128 | and prevent bugs like "When X happens and Y happens and Z happens, some random thing 129 | happens". 130 | 131 | 132 | State machines are useful simply because it's easier to program for what's possible 133 | than to defend against all the things that should not be possible. 134 | 135 | # Contributing 136 | 137 | You can report bugs in the issues tracker. Please add a sample app 138 | with a minimal test case that reproduces the bug you are reporting. 139 | 140 | Feature requests are also welcome, preferably with a pull request and tests :-) 141 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | --------------------------------------------------------------------------------