aboutsummaryrefslogtreecommitdiffstats
path: root/doxygen/Makefile
blob: f62fa7661ab1fb1d24825aab41297894501df6df (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
# Copyright (c) 2016 Comcast Cable Communications Management, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#
# Build the documentation
#

# These should be passed in by the root Makefile
WS_ROOT ?= $(CURDIR)/..
BR ?= $(WS_ROOT)/build-root
OS_ID ?= $(shell grep '^ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')

# Package dependencies
DOC_DEB_DEPENDS = doxygen graphviz python-pyparsing
DOC_RPM_DEPENDS = doxygen graphviz pyparsing

# Doxygen configuration and our utility scripts
DOXY_DIR ?= $(WS_ROOT)/doxygen

# Input directories and files
DOXY_INPUT ?= \
	README.md \
	vppinfra \
	svm \
	vlib \
	vlib-api \
	vnet \
	vpp \
	vpp-api \
	plugins

# Files to exclude, from pre-Doxygen steps, eg because they're
# selectively compiled.
# Examples would be to exclude non-DPDK related sources when
# there's a DPDK equivalent that conflicts.
# This is specifically for the pre-Doxygen steps; Doxygen uses
# @cond for this instead.
DOXY_PRE_EXCLUDE ?= \
	vlib/vlib/buffer.c

# Generate a regexp for filenames to exclude
DOXY_PRE_EXCLUDE_REGEXP = ($(subst .,\.,$(shell echo '$(strip $(DOXY_PRE_EXCLUDE))' | sed -e 's/ /|/g')))

# Discover all the directories we might, possibly, maybe, have include files in
DOXY_INCLUDE_PATH = $(shell set -e; cd $(WS_ROOT); for item in $(DOXY_INPUT); do find $$item -type d; done)

# Discover if we have CPP available
CPP ?= $(shell which cpp)
ifneq ($(strip $(CPP)),)
# Add whatever directories CPP normally includes
DOXY_INCLUDE_PATH += $(shell set -e; $(CPP) -v </dev/null 2>&1 | grep -A 1000 '\#include' | awk '/^ /{print $$1}')
endif

# Target directory for doxygen output
DOXY_OUTPUT ?= $(BR)/docs

# Siphoned fragments end up in here
SIPHON_INPUT ?= $(DOXY_OUTPUT)/siphon_fragments

# Siphoned fragements are processed into here
SIPHON_OUTPUT ?= $(DOXY_OUTPUT)/siphon_docs

# Extra document inputs that are processed in addition to DOXY_INPUT
EXTRA_DOXY_INPUT += $(SIPHON_OUTPUT)

# All the siphon types we know about
SIPHONS ?= clicmd

SIPHON_FILES = $(addprefix $(SIPHON_INPUT)/,$(addsuffix .siphon,$(SIPHONS)))
SIPHON_DOCS = $(addprefix $(SIPHON_OUTPUT)/,$(addsuffix .md,$(SIPHONS)))

$(BR)/.doxygen-bootstrap.ok:
ifeq ($(OS_ID),ubuntu)
	@set -e; inst=; \
		for i in $(DOC_DEB_DEPENDS); do \
			dpkg-query --show $$i >/dev/null 2>&1 || inst="$$inst $$i"; \
		done; \
		if [ "$$inst" ]; then sudo apt-get $(CONFIRM) $(FORCE) install $$inst; fi
	@if [ ! -s /usr/lib/graphviz/config6a ]; then \
		echo "Rebuidlding system Graphviz configuration."; \
		sudo dot -c; \
	fi
else ifneq ("$(wildcard /etc/redhat-release)","")
	@sudo yum install $(CONFIRM) $(DOC_RPM_DEPENDS)
else
	$(error "This option currently works only on Ubuntu or Centos systems")
endif
	@touch $@

.PHONY: bootstrap-doxygen
bootstrap-doxygen: $(BR)/.doxygen-bootstrap.ok

.DELETE_ON_ERROR: $(BR)/.doxygen-siphon.dep
$(BR)/.doxygen-siphon.dep: Makefile
	set -e; rm -f "$@"; for input in $(DOXY_INPUT); do \
		find "$(WS_ROOT)/$$input" -type f \
			\( -name '*.[ch]' -or -name '*.dox' \) -print \
			| grep -v -E '^$(WS_ROOT)/$(DOXY_PRE_EXCLUDE_REGEXP)$$' \
			| sed -e "s/^/\$$(SIPHON_FILES): /" \
			>> $@; \
	done

# Include the source -> siphon dependencies
-include $(BR)/.doxygen-siphon.dep

.NOTPARALLEL: $(SIPHON_FILES)
$(SIPHON_FILES): $(DOXY_DIR)/siphon_generate.py $(BR)/.doxygen-bootstrap.ok
	@rm -rf "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
	@mkdir -p "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
	@touch $(SIPHON_INPUT)/files
	for input in $(DOXY_INPUT); do \
		cd "$(WS_ROOT)"; \
		find "$$input" -type f \
			\( -name '*.[ch]' -or -name '*.dox' \) -print \
			| grep -v -E '^$(DOXY_PRE_EXCLUDE_REGEXP)$$' \
			>> $(SIPHON_INPUT)/files; \
	done
	set -e; cd "$(WS_ROOT)"; $(DOXY_DIR)/siphon_generate.py \
		--output="$(SIPHON_INPUT)" \
		"@$(SIPHON_INPUT)/files"


.DELETE_ON_ERROR: $(SIPHON_DOCS)
$(SIPHON_OUTPUT)/%.md: $(SIPHON_INPUT)/%.siphon $(DOXY_DIR)/siphon_process.py
	set -e; cd "$(WS_ROOT)"; \
		$(DOXY_DIR)/siphon_process.py --type=$(basename $(notdir $<)) \
			--output="$(SIPHON_OUTPUT)" $< > $@

# This target can be used just to generate the siphoned docs
.PHONY: doxygen-siphon
doxygen-siphon: $(SIPHON_DOCS)

# Generate the doxygen docs
doxygen: $(SIPHON_DOCS)
	@mkdir -p "$(DOXY_OUTPUT)"
	set -e; cd "$(WS_ROOT)"; \
	    ROOT="$(WS_ROOT)" \
	    BUILD_ROOT="$(BR)" \
	    INPUT="$(addprefix $(WS_ROOT)/,$(DOXY_INPUT)) $(EXTRA_DOXY_INPUT)" \
	    INCLUDE_PATH="$(DOXY_INCLUDE_PATH)" \
	    HTML=YES \
	    VERSION="`git describe --tags --dirty`" \
	    doxygen $(DOXY_DIR)/doxygen.cfg

wipe-doxygen:
	rm -rf "$(BR)/docs" "$(BR)/.doxygen-siphon.d"