CODEWITHSUNDEEP
javainstall4j
ShaDooW
ShaDooW

Reputation: 483

Install4j: logging in silent updater

During an installation process by Using com.install4j.api.Util I can log anything and the log is found in the .install4j directory. But while running the silent updater, I followed the same process but could not find where actually are the messages logged. Also if the logger used by Util does not work in this case, does install4j support using other logging libraries?

Upvotes: 1

Views: 818

Answers (1)

Ingo Kegel
Ingo Kegel

Reputation: 48015

Installer applications such as updaters write log files to the temporary directory (%TEMP% on Windows, $TMP on Linux/Unix, $TMPDIR on Mac OS X). Upon successful completion, the log file is deleted. To keep the log file, pass the argument

-Dinstall4j.keepLog=true

to the installer application. You can also add this as a fixed VM parameter on the "Installer->Screens & Actions" step.

If the temporary directory is an inconvenient location, pass the additional VM parameter

-Dinstall4j.alternativeLogfile=[path to writable log file]

For debugging, there is also the possibility to write the logging output to stderr by passing

-Dinstall4j.logToStderr=true

Upvotes: 5

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