Add in support for copying the ffmpeg binaries in linux and mac.

Review URL: http://codereview.chromium.org/149121

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19534 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 32 insertions, 6 deletions

diff --git a/third_party/ffmpeg/copy_binaries.sh b/third_party/ffmpeg/copy_binaries.sh
index fb59e15..5c7f412 100755
--- a/third_party/ffmpeg/copy_binaries.sh
+++ b/third_party/ffmpeg/copy_binaries.sh
@@ -1,13 +1,39 @@
 #!/bin/bash
 #
-# Copies FFmpeg binaries due to gyp limitations on how much you can cram
-# into a rules action.
+# This is meant to replicate the behavior of cp, except that it will not fail
+# if the source files are not present.  Something like
+# "cp ${SOURCES} ${DEST} || true" would also have worked except that
+# gyp does not allow for specifying || in the action, and the windows
+# cygwin envrionment does not include "true" making a script like this the
+# least ugly solution.
 
-SOURCE=$1
-DESTINATION=$2
+SOURCES=""
+DESTINATION=""
 
-# Our cygwin environment is very limited: "if" isn't available.
-test -f $SOURCE && cp -v -f $SOURCE $DESTINATION
+# Shift off every argument but the last and consider them the sources.
+# It would have probably been easier to put the destination first, but
+# this is not too hard and it replicates the argument ordering of cp.
+while (( "$#" != 1 )); do
+  SOURCES="$SOURCES $1"
+  shift
+done
+
+DESTINATION=$1
+
+# Early out if there was not enough parameters to discern a destination.
+# Also fail the command because this means we are being invoked incorrectly.
+if test -z "$DESTINATION"; then
+  echo "ERROR: Destination empty."
+  exit 1
+fi
+
+# Only try to copy the source file if it exists.  It is not an error
+# if the input does not exist; we just silently ignore the input.
+for i in $SOURCES; do
+  if test -f $i; then
+    cp -v -f $i $DESTINATION
+  fi
+done
 
 # Make sure we always succeed.
 exit 0