1 files changed, 61 insertions, 0 deletions
diff --git a/unix/makepatch.sh b/unix/makepatch.sh
new file mode 100755
index 0000000..86804ab
--- /dev/null
+++ b/unix/makepatch.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+#
+# Automatically make the patches for the updated files by find
+# the corresponding '*.orig' files through the given directory.
+#
+# Based on the 'makepatch' target of FreeBSD 'Mk/bsd.port.mk'.
+#
+#
+# Aaron LI
+# Created: 2015-10-13
+# Updated: 2015-12-07
+#
+# ChangeLog:
+# 2015-12-06:
+#   * Drop option '-s' for `find`
+# 2015-12-07:
+#   * Replace 'workdir' with 'srcdir'
+#   * Make find to search 'srcdir' instead of '.'
+#
+
+case "$1" in
+    -[hH]*|--[hH]*)
+        echo "Usage: $0 [srcdir] [patchdir]"
+        echo ""
+        echo "Both 'srcdir' and 'patchdir' default to be ."
+        exit 1
+        ;;
+esac
+
+SRCDIR=${1:-.}
+PATCHDIR=${2:-.}
+
+if [ ! -d "${PATCHDIR}" ]; then
+    mkdir ${PATCHDIR}
+fi
+
+PATCH_PATH_SEPARATOR="_"
+
+for f in `find ${SRCDIR}/ -type f -name '*.orig'`; do
+    _SEEN="NO"
+    ORIG=${f#./}
+    NEW=${ORIG%.orig}
+    if cmp -s ${ORIG} ${NEW}; then
+        # The two files are identical
+        continue
+    fi
+    PATCH=`echo ${NEW} | sed -e \
+        "s|${PATCH_PATH_SEPARATOR}|&&|g" -e "s|/|${PATCH_PATH_SEPARATOR}|g"`
+    OUT="${PATCHDIR}/patch-${PATCH}"
+    if test -f "${OUT}"; then
+        echo WARNING: patch already exists: \"${OUT}\"
+    else
+        echo diff -udp ${ORIG} ${NEW} '>' ${OUT}
+        TZ=UTC diff -udp ${ORIG} ${NEW} | sed -e \
+            '/^---/s|\.[0-9]* +0000$| UTC|' -e \
+            '/^+++/s|\([[:blank:]][-0-9:.+]*\)*$||' > ${OUT}
+    fi
+done
+
+exit 0
+