Maven command to determine which settings xml file Maven is using

Question

How do I use maven command line to determine which settings xml file Maven is picking up

User · Answer

Quick and dirty method to determine if Maven is using desired settings.xml would be invalidate its xml and run some safe maven command that requires settings.xml.

If it reads this settings.xml then Maven reports an error: "Error reading settings.xml..."

User · Answer

This is the configuration file for Maven  It can be specified at two levels    User Level  This settings xml file provides configuration for a single user                 and is normally provided in   user home   m2 settings xml             NOTE  This location can be overridden with the CLI option             -s  path to user settings xml  Global Level  This settings xml file provides configuration for all Maven               users on a machine  assuming they re all using the same Maven               installation   It s normally provided in                  maven home  conf settings xml             NOTE  This location can be overridden with the CLI option             -gs  path to global settings xml

User · Answer

If you are debugging and wasting time like me  this will give exact details including passwords   P mvn help effective-settings -DshowPasswords true

User · Answer

The M2 HOME environment variable for the global one  See Settings Reference      The settings element in the   settings xml file contains elements   used to define values which configure   Maven execution in various ways  like   the pom xml  but should not be   bundled to any specific project  or   distributed to an audience  These   include values such as the local   repository location  alternate remote   repository servers  and authentication   information  There are two locations   where a settings xml file may live          The Maven install   M2 HOME conf settings xml   A user s install    user home   m2 settings xml

User · Answer

You can use the maven help plugin to tell you the contents of your user and global settings files   mvn help effective-settings   will ask maven to spit out the combined global and user settings

User · Answer

Your comment to cletus   correct  answer implies that there are multiple Maven settings files involved   Maven always uses either one or two settings files  The global settings defined in    M2 HOME  conf settings xml  is always required  The user settings file  defined in   user home   m2 settings xml  is optional  Any settings defined in the user settings take precedence over the corresponding global settings   You can override the location of the global and user settings from the command line  the following example will set the global settings to c  global settings xml and the user settings to c  user settings xml   mvn install --settings c  user settings xml      --global-settings c  global settings xml   Currently there is no property or means to establish what user and global settings files were used from with Maven  To access these values  you would have to modify MavenCli and or DefaultMavenSettingsBuilder to inject the file locations into the resolved Settings object

User · Answer

Start maven with -X option  debug  and examine the beginning of the output  There should be something like this        INFO  Error stacktraces are turned on   DEBUG  Reading global settings from c       apache-maven-3 0 3 conf settings xml  DEBUG  Reading user settings from c        m2 settings xml  DEBUG  Using local repository at C       repository        Original directory names are removed by me

[maven] Maven command to determine which settings.xml file Maven is using

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