[PATCH 2/3] escape INFILE and related environment variables

[Eric Wong]

We may expand them, so ensure they're properly escaped, first
for use in shell snippets.
---
 lib/dtas/partstats.rb           | 2 +-
 lib/dtas/source/av_ff_common.rb | 2 +-
 lib/dtas/source/sox.rb          | 2 +-
 lib/dtas/splitfx.rb             | 6 ++++--
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/lib/dtas/partstats.rb b/lib/dtas/partstats.rb
index 9d3312b..bc13480 100644
--- a/lib/dtas/partstats.rb
+++ b/lib/dtas/partstats.rb
@@ -55,7 +55,7 @@ class DTAS::PartStats
     rd, wr = IO.pipe
     env = opts[:env]
     env = env ? env.dup : {}
-    env["INFILE"] = @infile
+    env["INFILE"] = xs(@infile)
     env["TRIMFX"] = "trim #{trim_part.tbeg}s #{trim_part.tlen}s"
     opts = { pgroup: true, close_others: true, err: wr }
     pid = spawn(env, CMD, opts)
diff --git a/lib/dtas/source/av_ff_common.rb b/lib/dtas/source/av_ff_common.rb
index 189e135..9f29b02 100644
--- a/lib/dtas/source/av_ff_common.rb
+++ b/lib/dtas/source/av_ff_common.rb
@@ -158,7 +158,7 @@ module DTAS::Source::AvFfCommon # :nodoc:
 
     e["PROBE"] = @probe_harder ? @probe_harder.join(' ') : nil
     # make sure these are visible to the source command...
-    e["INFILE"] = @infile
+    e["INFILE"] = xs(@infile)
     e["AMAP"] = amap
     e["SSPOS"] = sspos
     e["RGFX"] = rg_state.effect(self) || nil
diff --git a/lib/dtas/source/sox.rb b/lib/dtas/source/sox.rb
index 91a3c40..6f02f99 100644
--- a/lib/dtas/source/sox.rb
+++ b/lib/dtas/source/sox.rb
@@ -78,7 +78,7 @@ class DTAS::Source::Sox # :nodoc:
   def src_spawn(player_format, rg_state, opts)
     raise "BUG: #{self.inspect}#src_spawn called twice" if @to_io
     e = @env.merge!(player_format.to_env)
-    e["INFILE"] = @infile
+    e["INFILE"] = xs(@infile)
 
     # make sure these are visible to the "current" command...
     e["TRIMFX"] = trimfx
diff --git a/lib/dtas/splitfx.rb b/lib/dtas/splitfx.rb
index 022fbfe..fcd0028 100644
--- a/lib/dtas/splitfx.rb
+++ b/lib/dtas/splitfx.rb
@@ -362,8 +362,10 @@ class DTAS::SplitFX # :nodoc:
   end
 
   def infile_env(env, infile)
-    env["INFILE"] = infile
-    env["INDIR"], env["INBASE"] = File.split(File.expand_path(infile))
+    env["INFILE"] = xs(infile)
+    dir, base = File.split(File.expand_path(infile))
+    env["INDIR"] = xs(dir)
+    env["INBASE"] = xs(base)
   end
 
   def _expand_cmd(env, command)
-- 
EW