CHANGELOG.md in viiite-0.1.0 vs CHANGELOG.md in viiite-0.2.0

@@ -1,69 +1,139 @@
+# 0.2.0
+
+## Awesome new features
+
+* Viiite is now able to work on complete benchmark suites (located in
+  './benchmarks' and looking for '**/*.rb' files by default). Subcommands
+  automatically resolve benchmark names passed as arguments. For example:
+
+    ./benchmarks/
+      bench_iteration.rb     -> viiite run bench_iteration
+      Array/
+        bench_sort.rb        -> viiite run Array/bench_sort
+
+* Default behavior remains compatible with 0.1.0:
+  * 'run', 'plot' and 'report' accept a benchmark file as first argument and
+    bypass the benchmark suite in this case.
+  * when invoked without any argument, 'plot' and 'report' assume a .rash stream
+    on standard input
+
+* For each benchmark, the results of the last run are saved in a cache. 'plot'
+  and 'report' will use data in the cache if available or automatically run the
+  benchmark.
+
+* The default behavior may be controlled through the following main options:
+  --suite=[FOLDER], --pattern=[GLOB], --[no-]cache=[FOLDER], --append, --write. Example:
+
+    # Run all benchmarks on all rubies, 10 times each, appending all results
+    # in cache
+    rvm exec viiite --append run --runs=10
+
+## Enhancements to individual commands
+
+* 'viiite run'
+
+  * Added a --runs=NB option to run the same benchmark NB times. This allows
+    keeping benchmarks clean; no NB.times{ ... } or range_over(1..NB, :run)
+    for obtaining a representative sample are needed in the benchmark itself.
+  * The previous option comes hand-in-hand with --run-key=KEY that allows
+    specifying the attribute name for the run number (defaults to :run)
+  * Without argument, runs all the benchmarks of the suite
+
+* 'viiite plot'
+
+  * Added --highcharts options; outputs a json array containing one hash for
+    each chart, to be used as options Highcharts.Chart(...) (cfr. highcharts.js)
+  * Added -d option, to debug; outputs the query result that would be used by
+    the concrete --xxx formatter.
+
+* 'viiite report'
+
+  * output has been improved: user, system, total and real time are explicitely
+    shown (different attributes/columns instead of one tms measure).
+  * added a '--ff=FORMAT' option for float format of the different measures
+    (defaults to %.6f)
+  * added a '--stddev=[MEASURE]' option for displaying standard deviation over
+    all regrouped runs (on a specific measure defaulting to tms.total)
+
+## Other improvements
+
+  * The garbage collector is started before running report{ ... } blocks
+  * Viiite does not depend on benchmark (stdlib) anymore
+  * Improved Viiite.which_ruby; it should always output something like
+    '#{rubyname} #{version}#{patchlevel}' from now on
+
+## Bug fixes
+
+* Fixed a bug when using 'viiite report --regroup=x,y,z --hierarchy' with more
+  than 2 regrouping attributes.
+
+
 # 0.1.0 / 2011-08-20
 
 * Enhancements
 
   * Birthday!