mps-coderules/samples/fitch/log.xml

<?xml version='1.0' encoding='ISO-8859-1' ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<!--
IntelliJ Platform log all STDOUT and STDERR output to idea.log file by default.
See com.intellij.idea.StartupUtil#setupLogger system property 'intellij.log.stdout'.

Two main appenders are FILE and DIALOG:
FILE is responsible for logging to the idea.log file.
DIALOG is responsible for showing ERROR level (at least) events in UI (events are ignored in command line mode).

MPS additionally logs VCS events to mpsvcs.log file: categories are used for that.

Appenders CONSOLE-* can be used to debug purposes to get application output to the console.

CONTINUOUS_FILE appender can also be used for debugging.
It does not interfere with console output and idea.log, but uses separate continuous.log file.

All file appenders use $LOG_DIR$ folder for store files.
In MPS sources some run configurations override this path by setting 'idea.log.path' variable to '$PROJECT_DIR$/log'.
-->

<!-- Parameter 'follow = true' in appenders with class 'ConsoleAppender' is required for proper test light execution -->

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
  <!-- Output all events to console -->
  <appender name="CONSOLE-ALL" class="org.apache.log4j.ConsoleAppender">
    <param name="follow" value="false"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%7r] %6p - %30.60c - %m \n"/>
    </layout>
  </appender>

  <!-- Output events with level at least WARN to err console. See org.apache.log4j.Level.WARN -->
  <appender name="CONSOLE-WARN" class="org.apache.log4j.ConsoleAppender">
    <param name="follow" value="false"/>
    <param name="target" value="System.err"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%7r] %6p - %30.60c - %m \n"/>
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="WARN"/>
    </filter>
  </appender>


  <!-- Output events with level INFO to console. See org.apache.log4j.Level.INFO -->
  <appender name="CONSOLE-INFO" class="org.apache.log4j.ConsoleAppender">
    <param name="follow" value="false"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%7r] %6p - %30.60c - %m \n"/>
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="INFO"/>
      <param name="LevelMax" value="INFO"/>
    </filter>
  </appender>

  <!-- Output only events with level DEBUG to console. See org.apache.log4j.Level.DEBUG -->
  <appender name="CONSOLE-DEBUG" class="org.apache.log4j.ConsoleAppender">
    <param name="follow" value="false"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%7r] %6p - %30.60c - %m \n"/>
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="DEBUG"/>
      <param name="LevelMax" value="DEBUG"/>
    </filter>
  </appender>

  <!-- Output only events with level TRACE to console. See org.apache.log4j.Level.TRACE -->
  <appender name="CONSOLE-TRACE" class="org.apache.log4j.ConsoleAppender">
    <param name="follow" value="false"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%7r] %6p - %30.60c - %m \n"/>
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="TRACE"/>
      <param name="LevelMax" value="TRACE"/>
    </filter>
  </appender>

  <!-- Show events with level at least ERROR in UI -->
  <appender name="DIALOG" class="com.intellij.diagnostic.DialogAppender">
    <!-- DialogAppender does nothing with event which level is less then ERROR so there is no need to pass them to DialogAppender -->
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
      <param name="LevelMin" value="ERROR"/>
    </filter>
  </appender>

  <!-- Log all events to idea.log file. Maintain number of logs and file sizes. -->
  <appender name="FILE" class="org.apache.log4j.RollingFileAppender">
    <param name="MaxFileSize" value="1Mb"/>
    <param name="MaxBackupIndex" value="12"/>
    <param name="File" value="$LOG_DIR$/idea.log"/>
    <param name="Encoding" value="UTF-8"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%7r] %6p - %30.60c - %m \n"/>
    </layout>
  </appender>

  <!-- Log all events to continuous.log file. Note that file is overridden on each application start -->
  <appender name="CONTINUOUS_FILE" class="org.apache.log4j.FileAppender">
    <param name="File" value="$LOG_DIR$/continuous.log"/>
    <param name="Encoding" value="UTF-8"/>
    <param name="append" value="false"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%7r] %6p - %30.60c - %m \n"/>
    </layout>
  </appender>

  <!-- Log events to mpsvcs.log file -->
  <appender name="FILE-VCS" class="org.apache.log4j.RollingFileAppender">
    <param name="MaxFileSize" value="2Mb"/>
    <param name="MaxBackupIndex" value="5"/>
    <param name="file" value="$LOG_DIR$/mpsvcs.log"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%7r] %6p - %30.60c - %m \n"/>
    </layout>
  </appender>

  <!-- Additionally log MPS specific vcs events to mpsvcs.log -->
  <category name="jetbrains.mps.vcs">
    <priority value="INFO"/>
    <appender-ref ref="FILE-VCS"/>
  </category>

  <!-- Additionally log IntelliJ Platform vcs events to mpsvcs.log -->
  <category name="com.intellij.openapi.vcs">
    <priority value="INFO"/>
    <appender-ref ref="FILE-VCS"/>
  </category>

  <!--
  Template category for debugging:
  Set required logger prefix (java package) and choose appropriate appender.
  Set required priority: TRACE, DEBUG, INFO, WARN, ERROR etc (See org.apache.log4j.Level).
  Choose required debug appender or add your own.
  -->
  <!--
  <category name="logger.prefix">
    <priority value="ALL"/>
    <appender-ref ref="CONSOLE-ALL"/>
    <appender-ref ref="CONSOLE-WARN"/>
    <appender-ref ref="CONSOLE-INFO"/>
    <appender-ref ref="CONSOLE-DEBUG"/>
    <appender-ref ref="CONSOLE-TRACE"/>
    <appender-ref ref="CONTINUOUS_FILE" />
  </category>
  -->

  <root>
    <!-- Change to ALL or appropriate level for debug with CONSOLE-DEBUG/CONSOLE-TRACE appenders -->
    <priority value="TRACE"/>

    <!-- IDE related -->
    <appender-ref ref="DIALOG"/>
    <appender-ref ref="FILE"/>
    <!--<appender-ref ref="CONTINUOUS_FILE" />-->

    <!-- Console output options: use either CONSOLE-ALL or combination of other appenders -->
    <!-- Consider to use <category> to filter only packages under investigation -->
    <!--<appender-ref ref="CONSOLE-ALL"/>-->
    <!--<appender-ref ref="CONSOLE-WARN"/>-->
    <!--<appender-ref ref="CONSOLE-INFO"/>-->
    <!--<appender-ref ref="CONSOLE-DEBUG"/>-->
    <!--<appender-ref ref="CONSOLE-TRACE"/>-->
  </root>
</log4j:configuration>