1# 
2# Copyright (C) 2007-2009 OpenWrt.org
3#
4# This is free software, licensed under the GNU General Public License v2.
5# See /LICENSE for more information.
6
7ifneq ($(if $(DUMP),1,$(__quilt_inc)),1)
8__quilt_inc:=1
9
10ifeq ($(TARGET_BUILD),1)
11  PKG_BUILD_DIR:=$(LINUX_DIR)/sourcecode
12endif
13PATCH_DIR?=./patches
14FILES_DIR?=./files
15HOST_PATCH_DIR?=$(PATCH_DIR)
16HOST_FILES_DIR?=$(FILES_DIR)
17
18ifeq ($(MAKECMDGOALS),refresh)
19  override QUILT=1
20endif
21
22QUILT_CMD:=quilt --quiltrc=-
23
24define filter_series
25sed -e s,\\\#.*,, $(1) | grep -E \[a-zA-Z0-9\]
26endef
27
28define PatchDir/Quilt
29	@mkdir -p "$(1)/patches$(if $(3),/$(patsubst %/,%,$(3)))"
30	@if [ -s "$(2)/series" ]; then \
31		mkdir -p "$(1)/patches/$(3)"; \
32		cp "$(2)/series" "$(1)/patches/$(3)"; \
33	fi
34	@for patch in $$$$( (cd "$(2)" && if [ -f series ]; then $(call filter_series,series); else ls | sort; fi; ) 2>/dev/null ); do ( \
35		cp "$(2)/$$$$patch" "$(1)/patches/$(3)"; \
36		echo "$(3)$$$$patch" >> "$(1)/patches/series"; \
37	); done
38	$(if $(3),@echo $(3) >> "$(1)/patches/.subdirs")
39endef
40
41define PatchDir/Default
42	@if [ -d "$(2)" ] && [ "$$$$(ls $(2) | wc -l)" -gt 0 ]; then \
43		export PATCH="$(PATCH)"; \
44		if [ -s "$(2)/series" ]; then \
45			$(call filter_series,$(2)/series) | xargs -n1 \
46				$(KPATCH) "$(1)" "$(2)"; \
47		else \
48			$(KPATCH) "$(1)" "$(2)"; \
49		fi; \
50	fi
51endef
52
53define PatchDir
54$(call PatchDir/$(if $(strip $(QUILT)),Quilt,Default),$(strip $(1)),$(strip $(2)),$(strip $(3)))
55endef
56
57define HostPatchDir
58$(call PatchDir/$(if $(strip $(HOST_QUILT)),Quilt,Default),$(strip $(1)),$(strip $(2)),$(strip $(3)))
59endef
60
61ifneq ($(PKG_BUILD_DIR),)
62  QUILT?=$(if $(wildcard $(PKG_BUILD_DIR)/.quilt_used),y)
63  ifneq ($(QUILT),)
64    STAMP_CHECKED:=$(PKG_BUILD_DIR)/.quilt_checked
65    override CONFIG_AUTOREBUILD=
66    quilt-check: $(STAMP_CHECKED)
67  endif
68endif
69
70ifneq ($(HOST_BUILD_DIR),)
71  HOST_QUILT?=$(if $(findstring command,$(origin QUILT)),$(QUILT),$(if $(wildcard $(HOST_BUILD_DIR)/.quilt_used),y))
72  ifneq ($(HOST_QUILT),)
73    HOST_STAMP_CHECKED:=$(HOST_BUILD_DIR)/.quilt_checked
74    override CONFIG_AUTOREBUILD=
75    host-quilt-check: $(HOST_STAMP_CHECKED)
76  endif
77endif
78
79define Host/Patch/Default
80	$(if $(HOST_QUILT),rm -rf $(HOST_BUILD_DIR)/patches; mkdir -p $(HOST_BUILD_DIR)/patches)
81	$(call HostPatchDir,$(HOST_BUILD_DIR),$(HOST_PATCH_DIR),)
82	$(if $(HOST_QUILT),touch $(HOST_BUILD_DIR)/.quilt_used)
83endef
84
85define Build/Patch/Default
86	$(if $(QUILT),rm -rf $(PKG_BUILD_DIR)/patches; mkdir -p $(PKG_BUILD_DIR)/patches)
87	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR),)
88	$(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used)
89endef
90
91kernel_files=$(foreach fdir,$(GENERIC_FILES_DIR) $(FILES_DIR),$(fdir)/.)
92define Kernel/Patch/Default
93	rm -rf $(PKG_BUILD_DIR)/patches; mkdir -p $(PKG_BUILD_DIR)/patches
94	if [ -d ./files ]; then $(CP) ./files/* $(LINUX_DIR)/; fi
95	case $(CUSTOMER) in \
96	    dni) \
97	    ;; \
98	    netgear) \
99	    ;; \
100	    *) \
101	    $(if $(kernel_files),$(CP) $(kernel_files) $(LINUX_DIR)/); \
102	    find $(LINUX_DIR)/ -name \*.rej -or -name \*.orig | $(XARGS) rm -f; \
103	    ;; \
104	esac
105	$(call PatchGenericDir,$(PKG_BUILD_DIR),$(GENERIC_PATCH_DIR),$(CUSTOMER))
106	$(call PatchDir,$(PKG_BUILD_DIR),$(PATCH_DIR),platform/)
107endef
108
109define Quilt/RefreshDir
110	mkdir -p $(2)
111	-rm -f $(2)/* 2>/dev/null >/dev/null
112	@( \
113		for patch in $$$$($(if $(3),grep "^$(3)",cat) $(1)/patches/series | awk '{print $$$$1}'); do \
114			$(CP) -v "$(1)/patches/$$$$patch" $(2); \
115		done; \
116	)
117endef
118
119define Quilt/Refresh/Host
120	$(call Quilt/RefreshDir,$(HOST_BUILD_DIR),$(PATCH_DIR))
121endef
122
123define Quilt/Refresh/Package
124	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR))
125endef
126
127define Quilt/Refresh/Kernel
128	@[ -z "$$(grep -v '^generic/' $(PKG_BUILD_DIR)/patches/series | grep -v '^platform/')" ] || { \
129		echo "All kernel patches must start with either generic/ or platform/"; \
130		false; \
131	}
132	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(GENERIC_PATCH_DIR),generic/)
133	$(call Quilt/RefreshDir,$(PKG_BUILD_DIR),$(PATCH_DIR),platform/)
134endef
135
136define Quilt/Template
137  $($(2)STAMP_CONFIGURED): $($(2)STAMP_CHECKED)
138  $(if $(NO_RECONFIGURE),$($(2)STAMP_BUILT),$($(2)STAMP_CONFIGURED)): FORCE
139  $($(2)STAMP_CHECKED): $($(2)STAMP_PREPARED)
140	if [ -s "$(1)/patches/series" ]; then \
141		(cd "$(1)"; \
142			if $(QUILT_CMD) next >/dev/null 2>&1; then \
143				$(QUILT_CMD) push -a; \
144			else \
145				$(QUILT_CMD) top >/dev/null 2>&1; \
146			fi \
147		); \
148	fi
149	touch "$$@"
150
151  $(3)quilt-check: $($(2)STAMP_PREPARED) FORCE
152	@[ -f "$(1)/.quilt_used" ] || { \
153		echo "The source directory was not unpacked using quilt. Please rebuild with QUILT=1"; \
154		false; \
155	}
156	@[ -f "$(1)/patches/series" ] || { \
157		echo "The source directory contains no quilt patches."; \
158		false; \
159	}
160	@[ -n "$$$$(ls $(1)/patches/series)" -o "$$$$(cat $(1)/patches/series | md5sum)" = "$$(sort $(1)/patches/series | md5sum)" ] || { \
161		echo "The patches are not sorted in the right order. Please fix."; \
162		false; \
163	}
164
165  $(3)refresh: $(3)quilt-check
166	@cd "$(1)"; $(QUILT_CMD) pop -a -f >/dev/null 2>/dev/null
167	@cd "$(1)"; while $(QUILT_CMD) next 2>/dev/null >/dev/null && $(QUILT_CMD) push; do \
168		QUILT_DIFF_OPTS="-p" $(QUILT_CMD) refresh -p ab --no-index --no-timestamps; \
169	done; ! $(QUILT_CMD) next 2>/dev/null >/dev/null
170	$(Quilt/Refresh/$(4))
171	
172  $(3)update: $(3)quilt-check
173	$(Quilt/Refresh/$(4))
174endef
175
176Build/Quilt=$(call Quilt/Template,$(PKG_BUILD_DIR),,,$(if $(TARGET_BUILD),Kernel,Package))
177Host/Quilt=$(call Quilt/Template,$(HOST_BUILD_DIR),HOST_,host-,Host)
178
179endif
180