Since Lion 10.7.1 10.6.8 MacOSx Snow Leopard (correct me if wrong), Mac OS X comes with Apache Maven 3 built in, and can be located at /usr/share/maven

1. Maven Built-In

To verify the Maven installation, in terminal, issue the command mvn -version.


$mvn -version

Apache Maven 3.0.3 (r1075438; 2011-03-01 01:31:09+0800)
Maven home: /usr/share/maven
Java version: 1.6.0_33, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.7.4", arch: "x86_64", family: "mac"

1.1 – Where is Maven installed?
A quick check with whereis command :


$ whereis mvn
/usr/bin/mvn

$ cd /usr/bin
$$ ls -ls | grep mvn
 8 lrwxr-xr-x   1 root   wheel        24 May 23 15:57 mvn -> /usr/share/maven/bin/mvn

By default, Maven is installed at /usr/share/maven. No configuration is needed.

2. Install Maven Manually

After the upgrade of Mac OS X Mavericks, Maven was removed (no idea why). So, You have to install it manually.

2.1 – Download Maven
Download the Maven, for example apache-maven-3.1.1-bin.tar.gz. Extracts it,


tar -xvf apache-maven-3.1.1-bin.tar.gz

$pwd
/Users/mkyong/apache-maven-3.1.1

2.2 – Set Maven command in environment variable.
Update ~/. bash_profile – create this file if doesn’t exist.


$ vim ~/.bash_profile
~/.bash_profile

export M2_HOME=/Users/mkyong/apache-maven-3.1.1
export PATH=$PATH:$M2_HOME/bin

Restart the terminal. Test it.


$mvn -version

Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 23:22:22+0800)
Maven home: /Users/mkyong/apache-maven-3.1.1
Java version: 1.7.0_05, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9", arch: "x86_64", family: "mac"

3. Post Configuration

A common post-installation for Maven, change the local repository to another location.


$sudo vim /usr/share/maven/conf/settings.xml

$vim /usr/mkyong/maven/conf/settings.xml
settings.xml

  <!-- localRepository
   | The path to the local repository maven will use to store artifacts.
   |
   | Default: ~/.m2/repository
  <localRepository>/path/to/local/repo</localRepository>
  -->
 <localRepository>/Users/mkyong//maven/repo/</localRepository>

Above example changed the default repository from ~/.m2/repository to /Users/mkyong//maven/repo/.

References

  1. Apache Maven
  2. Set environment variables on Mac OS X