Add comments and IFS reset to oh-installfiles.

1 files changed, 15 insertions, 3 deletions

diff --git a/src/oh-installfiles b/src/oh-installfiles
index 0d81eea..b200d5f 100644
--- a/src/oh-installfiles
+++ b/src/oh-installfiles
@@ -29,14 +29,26 @@ if [ ${#} -eq 0 ]; then
 	exit 1
 fi
 
-while [ ${#} -gt 0 ]; do
-	OLDIFS=${IFS}
-	IFS='
+# Set the IFS to just the linebreak character to make the 'read' utility output
+# entire lines.
+OLDIFS="${IFS}"
+IFS='
 '
+
+# Iterate over packages.
+while [ ${#} -gt 0 ]; do
+	# Loop over lines in the 'install' file.
 	while read -r pattern; do
+		# Ensure that the full directory path of the pattern exists in the
+		# package staging area.
 		pattern_dir=$(dirname ${pattern})
 		mkdir -p ${1}/${pattern_dir}
+		# Move any matching files from the installation destination to the
+		# package staging area.
 		mv dest/${pattern} ${1}/${pattern_dir}
 	done < ../${1}.pkg/install
 	shift
 done
+
+# Reset the IFS.
+IFS="${OLDIFS}"