It should be included in your git repo.

By using it with *gradlew*, this will ensure all your developers (and your build servers!) **always** use the same version of Gradle. This way you know that every one is building the same exact way.

It should be put under source control, as it&#39;s necessary for `gradlew` to work properly.

 

I am new to using DataFrame and I would like to know how to perform a SQL equivalent of left outer join on multiple columns on a series of tables

Example:

    df1: 
    Year    Week    Colour    Val1 
    2014       A       Red      50
    2014       B       Red      60
    2014       B     Black      70
    2014       C       Red      10
    2014       D     Green      20

    df2:
    Year    Week    Colour    Val2
    2014       A     Black      30
    2014       B     Black     100
    2014       C     Green      50
    2014       C       Red      20
    2014       D       Red      40

    df3:
    Year    Week    Colour    Val3
    2013       B       Red      60
    2013       C     Black      80
    2013       B     Black      10
    2013       D     Green      20
    2013       D       Red      50

Essentially I want to do something like this SQL code (Notice that df3 is not joined on Year):

    SELECT df1.*, df2.Val2, df3.Val3
    FROM df1
      LEFT OUTER JOIN df2
        ON df1.Year = df2.Year
        AND df1.Week = df2.Week
        AND df1.Colour = df2.Colour
      LEFT OUTER JOIN df3
        ON df1.Week = df3.Week
        AND df1.Colour = df3.Colour

The result should look like:

    Year    Week    Colour    Val1    Val2    Val3
    2014       A       Red      50    Null    Null
    2014       B       Red      60    Null      60
    2014       B     Black      70     100    Null
    2014       C       Red      10      20    Null
    2014       D     Green      20    Null    Null


I have tried using merge and join but can&#39;t figure out how to do it on multiple tables and when there are multiple joints involved. Could someone help me on this please?

Thanks

Pandas left outer join multiple dataframes on multiple columns

`&lt;div class=&quot;value test&quot; /&gt;`
I&#39;d like to identify that web element. It only has this two classes defined.
I cannot do the following as `className` does not take a space separated value. What are alternatives?

    @FindBy(className = &quot;value test&quot;)
    @CacheLookup
    private WebElement test;

Find div element by multiple class names?

When working on a team of android developers using gradle as your build system. Should you include gradle/wrapper/gradle-wrapper.properties in git, or should it be part of your .gitignore? 

Should you include or ignore gradle-wrapper.properties

<p>When working on a team of android developers using gradle as your build system. Should you include gradle/wrapper/gradle-wrapper.properties in git, or should it be part of your .gitignore?</p>


So I created a branch off of another branch I was already creating, and now when I try to merge the branches into master, I have run into the situation where I have to merge both branches.

Here is a diagram

&gt;Master-&gt;
&lt;br&gt;
&gt;&gt;      -&gt;Branch 1  -&gt; Branch 2

I want to be able to merge just the changes on branch 2 onto master without having to merge the changes on Branch 1 if that makes sense. I looked into reset and revert, but it seems like these things will delete all the changes I made with branch 2. Any ideas?

Thanks

Accidentally branched off of the wrong branch, and when I want to merge into the master I have to merge both branches

I am unable to run any commands against my remote repository at Visual Studio Team Services (VSTS) because authentication fails.

I am able to do pulls, etc. through Visual Studio. But only through Visual Studio. Not through Git Bash, or any other tool like [SourceTree][1].

  [1]: https://en.wikipedia.org/wiki/Atlassian#Acquisitions_and_product_announcements


Unable to authenticate with Git Bash to Visual Studio Team Services

I used the usual: 

    yum install git

It did not install the latest version of git on my CentOS 6. How can I update to the latest version of git for CentOS 6? The solution can be applicable to newer versions of CentOS such as CentOS 7.

How to install latest version of git on CentOS 8.x/7.x/6.x

I am trying to get git to not change any line endings whatsoever for any operation.  Unfortunately, it seems to do so not matter what.  I have reduced it down to the following test case, which has as many different mechanisms for disabling this behavior as I could find.

----

 - Begin with two machines (Windows computer = A, Linux computer = B)
 - On both machines: `git config --global core.autocrlf false`
 - On both machines: `git config --global core.eol crlf` (just in case)

----

 - Make new repository on A.  From an empty folder:
  - `git init --shared` (then unhide the created `.git` directory)
  - Make a new file `.gitignore` in the repository
  - Make a new file `.gitattributes` in the repository with the single line: `* -text`
  - `git add .`, then `git commit -m &quot;initial commit&quot;` to work around, e.g. [this][1].
  - `git branch master_recv`
  - Add remotes
 - Make a new file `document.txt` in the repository containing CRLF
 - Commit: `git add -A`, then `git commit -m &quot;&lt;something&gt;&quot;`
 - Note that A&#39;s `document.txt` still contains CRLF (and deleting it and resetting with `--hard` returns the version still with CRLF)

----

 - SCP the whole directory to computer B
 - Add a new file `new file` containing CRLF
 - Commit: `git add -A`, then `git commit -m &quot;&lt;something&gt;&quot;`
 - Note that B&#39;s `document.txt` and B&#39;s `new file` both still contain CRLF

----

 - Pull B&#39;s master to A: `git pull &lt;remote&gt; master:master_recv`
 - A&#39;s `document.txt` has changed to LF.  The added file `new file` also contains LF.

The problem does not occur if B is a Windows machine.

  [1]: https://github.com/wakatime/sublime-wakatime/issues/15

Disable git EOL Conversions

How do I shallow clone a git repository, so that my clone contains only 1 history item, and starts on a specific branch?

I know how to do a shallow clone:

    git clone --depth 1 https://path/to/myrepo.git

 but not start the clone on a specific branch.


How do I shallow clone a repo on a specific branch?

My gradle project uses the `application` plugin to build a jar file. As part of the runtime transitive dependencies, I end up pulling in `org.slf4j:slf4j-log4j12`. (It&#39;s referenced as a sub-transitive dependency in at least 5 or 6 other transitive dependencies - this project is using spring and hadoop, so everything but the kitchen sink is getting pulled in... no wait... that&#39;s there too :) ).

I want to globally exclude the `slf4j-log4j12` jar from my built jar. So I&#39;ve tried this:

    configurations {
      runtime.exclude group: &quot;org.slf4j&quot;, name: &quot;slf4j-log4j12&quot;
    }

However, this seems to exclude **all** `org.slf4j` artifacts including `slf4j-api`. When running under debug mode I see lines such as:

    org.slf4j#slf4j-api is excluded from com.pivotal.gfxd:gfxd-demo-mapreduce:1.0(runtime).
    org.slf4j#slf4j-simple is excluded from com.pivotal.gfxd:gfxd-demo-mapreduce:1.0(runtime).
    org.slf4j#slf4j-log4j12 is excluded from org.apache.hadoop:hadoop-common:2.2.0(runtime).

I do not want to have to look up the source of each `slf4j-log4j12` transitive dependency and then have individual `compile foo { exclude slf4j... }` statements in my `dependencies` block.

**Update:**

I did also try this:

    configurations {
      runtime.exclude name: &quot;slf4j-log4j12&quot;
    }

Which ends up excluding **everything** from the build! As though I specified `group: &quot;*&quot;`.

**Update 2:**

I&#39;m using Gradle version 1.10 for this.


How do I exclude all instances of a transitive dependency when using Gradle?

I am trying to implement ActionBar-PullToRefresh from https://github.com/chrisbanes/ActionBar-PullToRefresh/wiki/QuickStart-ABC. I just made the switch from Eclipse to Android-Studio so I am totally new to AS and Gradle.

chrisbanes writes on the site: 

&gt; The easiest way to add ActionBar-PullToRefresh to your project is via
&gt; Gradle, you just need to add the following dependency to your
&gt; build.gradle:

    dependencies {  
        mavenCentral()
        compile &#39;com.github.chrisbanes.actionbarpulltorefresh:extra-abc:+&#39;
    }

Does this mean that I don&#39;t have to download the library and Gradle takes care of it so that I always have the latest version? I just don&#39;t know where to put the above line. I have two gradle.build files one in my root that looks like:

    // Top-level build file where you can add configuration options common to all sub-projects/modules.
    buildscript {
        repositories {
            mavenCentral()
        }
        dependencies {
            classpath &#39;com.android.tools.build:gradle:0.8.+&#39;
        }
    }

and the one in my project which looks like:

    apply plugin: &#39;android&#39;
    
    dependencies {
        compile fileTree(dir: &#39;libs&#39;, include: &#39;*.jar&#39;)
        compile &#39;com.android.support:support-v4:18.0.+&#39;
        compile &#39;com.android.support:appcompat-v7:18.0.+&#39;
    }
    
    android {
        compileSdkVersion 19
        buildToolsVersion &quot;19.0.1&quot;
    
        sourceSets {
            main {
                manifest.srcFile &#39;AndroidManifest.xml&#39;
                java.srcDirs = [&#39;src&#39;]
                resources.srcDirs = [&#39;src&#39;]
                aidl.srcDirs = [&#39;src&#39;]
                renderscript.srcDirs = [&#39;src&#39;]
                res.srcDirs = [&#39;res&#39;]
                assets.srcDirs = [&#39;assets&#39;]
            }
    
            // Move the tests to tests/java, tests/res, etc...
            instrumentTest.setRoot(&#39;tests&#39;)
    
            // Move the build types to build-types/&lt;type&gt;
            // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
            // This moves them out of them default location under src/&lt;type&gt;/... which would
            // conflict with src/ being used by the main source set.
            // Adding new build types or product flavors should be accompanied
            // by a similar customization.
            debug.setRoot(&#39;build-types/debug&#39;)
            release.setRoot(&#39;build-types/release&#39;)
        }
    }

Do I have to add a repository somewhere?

Add github library as dependency to Android-Studio project


I have a custom compile task.

    task compileSpeedTest(type: JavaCompile) {
        classpath = files(&#39;build&#39;)
        source = fileTree(&#39;src/test/java/speed&#39;)
        destinationDir = file(&#39;bin&#39;)
    }

Gradle doesn&#39;t try to download dependencies before its execution.
I cannot find anywhere a task name which does it to add it on list dependsOn. 

How to download dependencies in gradle

So I have created an Android library and successfully compiled it into a .aar file. I called this aar file: `&quot;projectx-sdk-1.0.0.aar&quot;`. Now I want my new project to depend on this aar so what I have done is follow [this post](http://life.nimbco.us/referencing-local-aar-files-with-android-studios-new-gradle-based-build-system/).

But the post confuses me since I do not get the desired result:

&gt; The package name of the aar is : `com.projectx.photosdk` and the module inside is called `sdk`

Here is my current project structure:

    |-SuperAwesomeApp
    |--.idea
    |--gradle
    |--App
    |---aars
    |----projectx-sdk-1.0.0.aar
    |---build
    |---jars
    |---src
    |---build.gradle

And here is my Gradle build file:

    apply plugin: &#39;android&#39;
    
    buildscript {
        repositories {
            mavenCentral()
            flatDir {
                dirs &#39;aars&#39;
            }
        }
    }
    
    android {
        compileSdkVersion 19
        buildToolsVersion &quot;19.0.1&quot;
    
        defaultConfig {
            minSdkVersion 11
            targetSdkVersion 19
            versionCode 1
            versionName &quot;1.0&quot;
        }
        buildTypes {
            release {
                runProguard false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
        }
    }
    
    dependencies {
        compile &#39;com.android.support:gridlayout-v7:19.0.1&#39;
        compile &#39;com.android.support:support-v4:19.0.1&#39;
        compile &#39;com.android.support:appcompat-v7:19.0.1&#39;

    
        compile &#39;com.projectx.photosdk:sdk:1.0.0@aar&#39;
    //    compile files( &#39;aars/sdk-1.0.0.aar&#39; ) // Does not work either
    }

**EDIT**

The errors I am getting:

    Failed to refresh Gradle project &#39;SuperAwesomeApp&#39;
         Could not find com.projectx.photosdk:sdk:1.0.0.
         Required by:
         SuperAwesomeApp:App:unspecified


Adding local .aar files to my gradle build

I have set `sdk.dir` and `ndk.dir` in *local.properties*.

How do I read the values of `sdk.dir` and `ndk.dir` in the *build.gradle* file?



How do I read properties defined in local.properties in build.gradle

Android Studio. I&#39;m getting this kind of error during application run.

`Error:Execution failed for task &#39;:app:packageDebug&#39;. Duplicate files copied in APK META-INF/notice.txt`

**build.gradle**

    apply plugin: &#39;android&#39;
    
    android {
        compileSdkVersion 19
        buildToolsVersion &quot;19.0.1&quot;
    
        packagingOptions {
            exclude &#39;META-INF/DEPENDENCIES&#39;
            exclude &#39;META-INF/NOTICE&#39;
            exclude &#39;META-INF/LICENSE&#39;
            exclude &#39;META-INF/LICENSE.txt&#39;
            exclude &#39;META-INF/NOTICE.txt&#39;
            exclude &#39;META-INF/ASL2.0&#39;
        }
    
        defaultConfig {
            minSdkVersion 7
            targetSdkVersion 19
            versionCode 1
            versionName &quot;1.0&quot;
        }
        buildTypes {
            release {
                runProguard false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
        }
    }
    
    dependencies {
        compile &#39;com.android.support:appcompat-v7:19.0.1&#39;
        compile &#39;com.j256.ormlite:ormlite-android:4.48&#39;
        compile &#39;org.codehaus.jackson:jackson-core-asl:1.9.13&#39;
        compile &#39;org.codehaus.jackson:jackson-mapper-asl:1.9.13&#39;
        compile &#39;com.octo.android.robospice:robospice:1.4.11&#39;
        compile &#39;com.octo.android.robospice:robospice-spring-android:1.4.11&#39;
    }

How can I fix this error?

**EDITED**

These exclude options solved my problem:

    packagingOptions {
            exclude &#39;META-INF/DEPENDENCIES&#39;
            exclude &#39;META-INF/LICENSE&#39;
            exclude &#39;META-INF/LICENSE.txt&#39;
            exclude &#39;META-INF/license.txt&#39;
            exclude &#39;META-INF/NOTICE&#39;
            exclude &#39;META-INF/NOTICE.txt&#39;
            exclude &#39;META-INF/notice.txt&#39;
            exclude &#39;META-INF/ASL2.0&#39;
        }

Error :: duplicate files during packaging of APK

I have an Android Studio app. It has a library dependency (Android-Bootstrap), when I try to sync gradle, it gives me an error:

&gt; Configuration with name &#39;default&#39; not found.

My structure is:

    -FTPBackup
       -fotobackup
         -build.gradle
       -Libraries
         -Android-Bootstrap
           -Settings.gradle
           -build.gradle
    -Settings.gradle
    -Build.gradle

The FTPBackup settings.gradle and build.gradle:

    include &#39;:fotobackup&#39;
    include &#39;:libraries:Android-Bootstrap&#39;,&#39;:Android-Bootstrap&#39;

-----

    // Top-level build file where you can add configuration options common to all sub-projects/modules.
    
    buildscript {
        repositories {
            mavenCentral()
        }
        dependencies {
            classpath &#39;com.android.tools.build:gradle:0.9.+&#39;
        }
    }
    
    allprojects {
        repositories {
            mavenCentral()
        }
    }


And the build.gradle inside fotobackup is:

    apply plugin: &#39;android&#39;
    
    android {
        compileSdkVersion 19
        buildToolsVersion &#39;19.0.3&#39;
    
        defaultConfig {
            minSdkVersion 14
            targetSdkVersion 19
            versionCode 1
            versionName &quot;1.0&quot;
        }
        buildTypes {
            release {
                runProguard false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
        }
    }
    
    apply plugin: &#39;android&#39;
    
    dependencies {
        compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
        compile &#39;com.android.support:support-v4:+&#39;
        compile project (&#39;:libraries:Android-Bootstrap&#39;)
    }


The library is downloaded from https://github.com/Bearded-Hen/Android-Bootstrap and it has build.gradle, settings etc.

whats wrong?

Configuration with name &#39;default&#39; not found. Android Studio

I received an error message while building a new Hello World project in Android Studio:

```none
FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project &#39;MyApplication2&#39;.
&gt; Could not resolve all dependencies for configuration &#39;:classpath&#39;.
   &gt; Could not resolve com.android.tools.build:gradle:0.9.1.
     Required by:
         :MyApplication2:unspecified
      &gt; No cached version of com.android.tools.build:gradle:0.9.1 available for offline mode.

BUILD FAILED
```

Android Studio version: 0.5.2

Gradle version: 0.9.1

I&#39;m using a proxy connection to Internet.

&quot;No cached version... available for offline mode.&quot;

I am using the volley library to perform network operation in android. So I am trying to add this library in my project  which is created in Android Studio and gradle system.

I added the volley library in my project but when I sync with gradle then I am getting error message. I tried all the answers which I see here but nothing worked for me.

**Error message** : Configuration with name &#39;default&#39; not found in Android Studio

Volley/build.gradle

	apply plugin: &#39;android-library&#39;

	android {

		compileSdkVersion 19
		buildToolsVersion &#39;19.0.1&#39;

		sourceSets {
			defaultConfig {
				minSdkVersion 8
				targetSdkVersion 19
			}

			main {
				assets.srcDirs       = [&#39;assets&#39;]
				res.srcDirs          = [&#39;res&#39;]
				aidl.srcDirs         = [&#39;src&#39;]
				resources.srcDirs    = [&#39;src&#39;]
				renderscript.srcDirs = [&#39;src&#39;]
				java.srcDirs         = [&#39;src&#39;]
				manifest.srcFile &#39;AndroidManifest.xml&#39;

			}
		}
	}

app/build.gradle

	apply plugin: &#39;android&#39;

	android {
		compileSdkVersion 19
		buildToolsVersion &#39;19.0.1&#39;

		defaultConfig {
			minSdkVersion 8
			targetSdkVersion 19
			versionCode 1
			versionName &quot;1.0&quot;
		}
		buildTypes {
			release {
				runProguard false
				proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
			}
		}
	}

	dependencies {
		compile &#39;com.android.support:appcompat-v7:19.+&#39;
		compile project(&#39;:library:volley&#39;)
	}

root/build.gradle

	// Top-level build file where you can add configuration options common to all sub-projects/modules.

	buildscript {
		repositories {
			mavenCentral()
		}
		dependencies {
			classpath &#39;com.android.tools.build:gradle:0.9.1&#39;
		}
	}

	allprojects {
		repositories {
			mavenCentral()
		}
	}


settings.gradle

	include &#39;:app&#39;
	include &#39;:library:volley&#39;



Content Type	Original Author	Original Content on Stackoverflow
Question	Reid Baker	View Question on Stackoverflow
Solution 1 - Git	Xavier Ducrohet	View Answer on Stackoverflow
Solution 2 - Git	Peter Niederwieser	View Answer on Stackoverflow

Should you include or ignore gradle-wrapper.properties

Git Problem Overview

Git Solutions

Solution 1 - Git

Solution 2 - Git

Find div element by multiple class names?

Pandas left outer join multiple dataframes on multiple columns

Attributions