snippets

Misc short code snippets to help Java developer to get through his/her daily routines.

props/ -- code for working with Java property files which allows to see diffs in properties files easily:

• PropsPrinter.java -- prints input *.properties file w/o comments and blank lines
• cmp _props.pl -- post-processes output of 'diff -uBw first.properties second.properties': It shows entries defined only in first.properties, only in second.properties and differences between entries in both of them.

Typical usage for comparing just two files is:

  $ java PropsPrinter first.properties > first.filtered
  $ java PropsPrinter second.properties > second.filtered
  $ diff -uBw *.filtered | perl -f cmp_props.pl
 

Typical usage for comparing two groups of properties files is:

  $ bash ./concat_props.sh group1	
  $ bash ./concat_props.sh group2
  $ java PropsPrinter first.properties > first.filtered
  $ java PropsPrinter second.properties > second.filtered
  $ diff -uBw *.filtered | perl -f cmp_props.pl
 

Additionally, you can use above to compare all properties between two directories:

  $ cd ~/dir1
  $ bash ./concat_props.sh
  $ cd ~/dir2	
  $ bash ./concat_props.sh
  $ cd ~/
  $ cp ~/dir1/all.properties dir1.all.properties && cp ~/dir2/all.properties dir2.all.properties
  # the rest as above
 

Doing

  $ cd ./props && make
 

is helpful as well.