Add timings for high level actions

[jeanouii]

When using the Eclipse Transformer on WAR/EAR files where it takes a very long time (30 min to hours), it's frustrating to not have any visibility on what's happening.

Usually, the quiet mode is too quiet, the verbose is useless for significant WAR/EAR and the trace not relevant and even slower and unsuable.

I was wondering what I could do to optimise, and the first thing I wanted to look at is the time it takes at least per WAR (in the EAR) and per JAR. Not sure it's too useful to display class/resource level timings for now

[jeanouii]

Adding some context here ....

I have 3 applications (WAR/EAR etc).

application1 (51MB)

• Default Eclipse Transformer run takes 10 mins
• Excluding jars not updated makes it run in 3min30s

application2 (72MB)

• Default Eclipse Transformer run takes 33 mins
• With Exclusions, it takes now around 20 mins

application3 (1+GB). It has a lot of resources (properties, web pages, and so one, and of course a lot of jars)

• Default Eclipse Transformer run takes several hours (stopped after a night)
• With exclusions, it takes around 2 hours