[PATCH] dtas-splitfx: add --stats/-S switch

[PATCH] dtas-splitfx: add --stats/-S switch

[Eric Wong]

Similar to the switch in dtas-archive(1), I got tired of having
to manually add stats to all the rips I was tracking out.
---
 Documentation/dtas-splitfx.pod | 9 ++++++++-
 bin/dtas-splitfx               | 1 +
 lib/dtas/splitfx.rb            | 4 +++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/Documentation/dtas-splitfx.pod b/Documentation/dtas-splitfx.pod
index f8de59b..6f8d9ed 100644
--- a/Documentation/dtas-splitfx.pod
+++ b/Documentation/dtas-splitfx.pod
@@ -37,6 +37,12 @@ Print, but do not run the commands to be executed
 
 Silent operation, commands are not printed as executed
 
+=item -S, --stats
+
+Add the sox "stats" effect to the end of the effects chain,
+use this with L</--err-suffix> to get a C<.stats> file with
+every track output
+
 =item -D, --no-dither
 
 Disable automatic setting of the DITHERFX env.  This also passes
@@ -46,7 +52,8 @@ the option to L<sox(1)> via SOX_OPTS.
 
 Write the contents of C<stderr>.  This is useful for capturing
 the per-track output of the L<sox(1)> C<stats> effect when
-combined with parallel C<--jobs>.
+combined with parallel C<--jobs>.  Recommended for use with the
+L</--stats> switch.
 
 =item -O, --outdir OUTDIR
 
diff --git a/bin/dtas-splitfx b/bin/dtas-splitfx
index d0afc7b..17d915d 100755
--- a/bin/dtas-splitfx
+++ b/bin/dtas-splitfx
@@ -13,6 +13,7 @@
   op.on('-n', '--dry-run') { opts[:dryrun] = true }
   op.on('-j', '--jobs [JOBS]', Integer) { |val| opts[:jobs] = val } # nil==inf
   op.on('-s', '--quiet', '--silent') { opts[:silent] = true }
+  op.on('-S', '--stats', 'run stats every track') { opts[:stats] = true }
   op.on('-f', '--filter FILTER') { |val| (opts[:filter] ||= []) << val }
   op.on('-D', '--no-dither') { opts[:no_dither] = true }
   op.on('-O', '--outdir OUTDIR') { |val| opts[:outdir] = val }
diff --git a/lib/dtas/splitfx.rb b/lib/dtas/splitfx.rb
index bb31ab5..1150ee0 100644
--- a/lib/dtas/splitfx.rb
+++ b/lib/dtas/splitfx.rb
@@ -10,7 +10,8 @@
 # Unlike the stuff for dtas-player, dtas-splitfx is fairly tied to sox
 # (but we may still pipe to ecasound or anything else)
 class DTAS::SplitFX # :nodoc:
-  CMD = 'sox "$INFILE" $COMMENTS $OUTFMT $OUTDST $TRIMFX $FX $RATEFX $DITHERFX'
+  CMD = 'sox "$INFILE" $COMMENTS $OUTFMT $OUTDST $TRIMFX $FX' \
+        ' $RATEFX $DITHERFX $STATS'
   include DTAS::Process
   attr_reader :infile, :env, :command
 
@@ -204,6 +205,7 @@ def splitfx_spawn(target, t, opts)
     elsif outfmt.bits && outfmt.bits <= 16
       env["DITHERFX"] = "dither -s"
     end
+    env['STATS'] = 'stats' if opts[:stats]
     comments = Tempfile.new(%W(dtas-splitfx-#{t.comments["TRACKNUMBER"]} .txt))
     t.comments.each do |k,v|
       env[k] = v.to_s