added comments, removed old commented code.

diff --git a/scripts/files/compare_dirs.sh b/scripts/files/compare_dirs.sh
index 4469b1281ea5a92ec0827846121dcbf676ebd400..ee1d69ae1aad71447707a21c7911500cb3eb3dd3 100644 (file)
--- a/scripts/files/compare_dirs.sh
+++ b/scripts/files/compare_dirs.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# compares the files and directory names in two different top-level directories
+# and prints a report of the differences.
 
 dir1="$1"; shift
 dir2="$1"; shift
@@ -13,18 +15,20 @@ if [ ! -d "$dir1/" -o ! -d "$dir2/" ]; then
   echo The directories to be compared must already exist.
   exit 1
 fi
+if [ "$dir1" == "$dir2" ]; then
+  echo "The two directories are the exact same folder name.  So that's silly."
+  exit 1
+fi
 
 out1="$(mktemp "$TMP/compare_dirs_output.XXXXXX")"
 out2="$(mktemp "$TMP/compare_dirs_output.XXXXXX")"
 
 pushd "$dir1" &>/dev/null
-#find . -type d >"$out1"
 find . >"$out1"
 sort "$out1" >"$out1".sort
 popd &>/dev/null
 
 pushd "$dir2" &>/dev/null
-#find . -type d >"$out2"
 find . >"$out2"
 sort "$out2" >"$out2".sort
 popd &>/dev/null