From c1d4f0e4c9a6526ff0111cac29811c1f1a1d0f20 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Thu, 02 Aug 2012 13:22:40 -0400
Subject: Write oh_cache().

---
diff --git a/lib/Makefile.in b/lib/Makefile.in
index aa7cacd..1f40840 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -40,6 +40,7 @@ SRCS = control.sh \
        changelog.sh \
        locale.sh \
        messages.sh \
+       cache.sh \
        util.sh
 OBJS = $(SRCS:.sh=)
 
diff --git a/lib/cache.sh b/lib/cache.sh
new file mode 100644
index 0000000..b428fd8
--- /dev/null
+++ b/lib/cache.sh
@@ -0,0 +1,37 @@
+# opkhelper
+# lib/cache
+# Cache property functions.
+#
+# Copyright (C) 2012 Patrick "P. J." McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+[ -n "${_OH_CACHE_SH}" ] && return 0
+_OH_CACHE_SH=true
+
+. @@LIBDIR@@/util
+
+oh_cache()
+{
+	_property="${1}"
+	shift
+
+	mkdir -p "${OH_SOURCE_DIR}/tmp/.cache"
+
+	if [ ${#} -eq 1 ]; then
+		cat "${OH_SOURCE_DIR}/tmp/.cache/${_property}" 2>/dev/null
+	else
+		echo "${*}" >"${OH_SOURCE_DIR}/tmp/.cache/${_property}"
+	fi
+}
diff --git a/src/opkbuild.sh b/src/opkbuild.sh
index 8c50e6c..8621051 100644
--- a/src/opkbuild.sh
+++ b/src/opkbuild.sh
@@ -23,6 +23,7 @@
 . @@LIBDIR@@/locale
 . @@LIBDIR@@/changelog
 . @@LIBDIR@@/control
+. @@LIBDIR@@/cache
 
 # Environment variables:
 export OH_SOURCE=
@@ -93,8 +94,9 @@ main()
 		"${OPT_CHECK_BUILD_DEPS}" && oh-checkbuilddeps
 		setup_build
 		print_arch_stats
-		if [ -n "${OH_CV_STEP}" ]; then
-			"step_${OH_CV_STEP}"
+		cp_step=$(oh_cache 'opkbuild.step')
+		if [ -n "${cp_step}" ]; then
+			"step_${cp_step}"
 		else
 			step_unpack
 		fi
@@ -239,9 +241,11 @@ setup_source_control()
 	oh_control_parse_source
 	for field in ${OH_CONTROL_SOURCE_FIELDS_REQUIRED} \
 		${OH_CONTROL_SOURCE_FIELDS_OPTIONAL}; do
-		param="OH_CONTROL_SOURCE_FIELD_$(echo "${field}" | \
-			LC_CTYPE=C tr '[:lower:]-' '[:upper:]_')"
-		oh_pv_set 'src:.control' "${field}" "$(eval echo \$\{"${param}"\})"
+		field_tr=$(echo "${field}" | \
+			LC_CTYPE=POSIX tr '[:lower:]-' '[:upper:]_')
+		param="OH_CONTROL_SOURCE_FIELD_${field_tr}"
+		oh_cache "src.control.${field}" \
+			"$(eval echo \$\{"${param}"\})"
 	done
 }
 
@@ -374,7 +378,7 @@ print_arch_stats()
 
 step_unpack()
 {
-	oh_cv_set step unpack
+	oh_cache 'opkbuild.step' 'unpack'
 
 	oh-unpacksource
 
@@ -383,7 +387,7 @@ step_unpack()
 
 step_patch()
 {
-	oh_cv_set step patch
+	oh_cache 'opkbuild.step' 'patch'
 
 	oh-applypatches
 
@@ -392,7 +396,7 @@ step_patch()
 
 step_config()
 {
-	oh_cv_set step config
+	oh_cache 'opkbuild.step' config
 
 	./config
 
@@ -401,7 +405,7 @@ step_config()
 
 step_bincontrol()
 {
-	oh_cv_set step bincontrol
+	oh_cache 'opkbuild.step' bincontrol
 
 	for pkg in ../*.pkg/; do
 		pkg="${pkg#../}"
@@ -409,10 +413,11 @@ step_bincontrol()
 		oh_control_parse_binary "${pkg}"
 		for field in ${OH_CONTROL_BINARY_FIELDS_REQUIRED} \
 			${OH_CONTROL_BINARY_FIELDS_OPTIONAL}; do
-			param="OH_CONTROL_BINARY_FIELD_$(echo "${field}" | \
-				LC_CTYPE=C tr '[:lower:]-' '[:upper:]_')"
-			oh_pv_set "${pkg}.control" \
-				"${field}" "$(eval echo \$\{"${param}"\})"
+			field_tr=$(echo "${field}" | \
+				LC_CTYPE=POSIX tr '[:lower:]-' '[:upper:]_')
+			param="OH_CONTROL_BINARY_FIELD_${field_tr}"
+			oh_cache "bin.${pkg}.control.${field}" \
+				"$(eval echo \$\{"${param}"\})"
 		done
 	done
 
@@ -421,7 +426,7 @@ step_bincontrol()
 
 step_platconf()
 {
-	oh_cv_set step platconf
+	oh_cache 'opkbuild.step' platconf
 
 	oh-copyconfig
 
@@ -430,7 +435,7 @@ step_platconf()
 
 step_build()
 {
-	oh_cv_set step build
+	oh_cache 'opkbuild.step' build
 
 	./build "${OPT_TARGET}"
 
@@ -439,7 +444,7 @@ step_build()
 
 step_clean()
 {
-	oh_cv_set step clean
+	oh_cache 'opkbuild.step' clean
 
 	./config clean
 
@@ -448,8 +453,6 @@ step_clean()
 
 step_cleanwork()
 {
-	oh_cv_clear
-
 	cd ..
 	rm -Rf tmp
 }
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