aboutsummaryrefslogtreecommitdiff
path: root/libreboot
blob: 1363e880a8b666602d6e6297614bec1a04a0b5e8 (plain) (blame)
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
#!/usr/bin/env bash

# Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
#
# 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/>.

GLOBIGNORE=".:.." # This enables the shell option 'dotglob' as well.
shopt -s nullglob extglob

libreboot_usage() {
	local action
	local target

	printf '%s\n' "${executable} [action] [target] [arguments]" >&2

	printf '\n%s\n' 'Generic project actions:' >&2

	for action in "${PROJECT_ACTIONS_GENERIC[@]}"; do
		printf '%s\n' "  ${action}" >&2
	done

	printf '\n%s\n' 'Virtual project actions:' >&2
	printf '%s\n'   '  sources'
	printf '%s\n'   '  produce'
	printf '%s\n'   '  test'

	printf '\n%s\n' 'Project targets:' >&2

	for target in "${root}/${PROJECTS}"/*; do
		if project_check "${target}"; then
			printf '%s\n' "  ${target}" >&2
		fi
	done

	printf '\n%s\n' 'Generic tool actions:' >&2

	for action in "${TOOL_ACTIONS_GENERIC[@]}"; do
		printf '%s\n' "  ${action}" >&2
	done

	printf '\n%s\n' 'Tool targets:' >&2

	for target in "${root}/${TOOLS}"/*; do
		if tool_check "${target}"; then
			printf '%s\n' "  ${target}" >&2
		fi
	done

	printf '\n%s\n' 'Environment variables:' >&2
	printf '%s\n'   '  PROJECTS_FORCE - Projects to always perform actions for' >&2
	printf '%s\n'   '  TOOLS_FORCE - Tools to always perform actions for' >&2
	printf '%s\n'   '  RELEASE_KEY - GPG key to use for release' >&2
	printf '%s\n'   '  VBOOT_KEYS_PATH - Path to the vboot keys' >&2
	printf '%s\n'   '  LIBFAKETIME_PATH - Path to the libfaketime shared library' >&2
	printf '%s\n'   '  TASKS - Number of simultaneous tasks to run' >&2
	printf '%s\n'   '  VERSION - Version string to use' >&2

	printf '\n%s\n' 'Configuration files:' >&2
	printf '%s\n'   "  ${BUILD_SYSTEM}.conf - Environment variables configuration" >&2
}

libreboot_project() {
	action="$1"
	shift
	project="$1"
	shift

	case "${action}" in
		'sources')
			(
				set +e

				project_action_arguments 'extract' "${project}" "$@" && return 0
				project_action_arguments 'download' "${project}" "$@" && return 0
			)
			;;
		'produce')
			for action in 'build' 'install' 'release'; do
				project_action_arguments "${action}" "${project}" "$@"
			done
			;;
		'test')
			for action in "${PROJECT_ACTIONS[@]}"; do
				project_action_arguments "${action}" "${project}" "$@"
			done
			;;
		*)
			if ! project_function_check "${project}" "${action}"; then
				libreboot_usage
				exit 1
			elif [[ "${action}" == 'usage' ]]; then
				project_action "${action}" "${project}" "$@"
			else
				project_action_arguments "${action}" "${project}" "$@"
			fi
			;;
	esac
}

libreboot_tool() {
	action="$1"
	shift
	tool="$1"
	shift

	if ! tool_function_check "${tool}" "${action}"; then
		libreboot_usage
		exit 1
	elif [[ "${action}" == 'usage' ]]; then
		tool_action "${action}" "${tool}" "$@"
	else
		tool_action_arguments_recursive "${action}" "${tool}" "$@"
	fi
}

libreboot_setup() {
	root="$(readlink -f "$(dirname "$0")")"
	executable="$(basename "$0")"

	libreboot_setup_include
	libreboot_setup_tool_actions
	libreboot_setup_project_actions

	requirements 'tar' 'sed' 'gpg' 'sha256sum' 'git'

	libreboot_setup_variables
}

libreboot_setup_include() {
	local libs_path="${root}/libs"
	local conf_path

	source "${libs_path}/project"
	source "${libs_path}/tool"
	source "${libs_path}/common"
	source "${libs_path}/git"

	conf_path="${root}/${BUILD_SYSTEM}.conf"

	if [[ -f "${conf_path}" ]]; then
		source "${conf_path}"
	fi
}

libreboot_setup_tool_actions() {
	local -i tool_actions_count="${#TOOL_ACTIONS_GENERIC[@]}"
	local -a tool_actions

	for ((i=0; i<"${tool_actions_count}"; i++)); do
		tool_actions+=("${TOOL_ACTIONS_GENERIC[i]}")

		if [[ "${TOOL_ACTIONS_GENERIC[i]}" == @(extract) ]]; then
			tool_actions+=("${TOOL_ACTIONS_GENERIC[i]/%/_check}")
		fi
	done

	TOOL_ACTIONS=("${TOOL_ACTIONS_HELPERS[@]}" "${tool_actions[@]}")
}

libreboot_setup_project_actions() {
	local -i project_actions_count="${#PROJECT_ACTIONS_GENERIC[@]}"
	local -a project_actions

	for ((i=0; i<"${project_actions_count}"; i++)); do
		project_actions+=("${PROJECT_ACTIONS_GENERIC[i]}")

		if [[ "${PROJECT_ACTIONS_GENERIC[i]}" == !(usage|clean) ]]; then
			project_actions+=("${PROJECT_ACTIONS_GENERIC[i]/%/_check}")
		fi
	done

	PROJECT_ACTIONS=("${PROJECT_ACTIONS_HELPERS[@]}" "${project_actions[@]}")
}

libreboot_setup_variables() {
	local vboot_tools_path="$(project_install_path 'vboot' 'tools')"
	local version_path="${root}/${DOTVERSION}"

	if [[ -z "${VERSION}" ]]; then
		if git_check "${root}"; then
			VERSION="${BUILD_SYSTEM}-$(git_describe "${root}" 2> /dev/null || echo 'git')"
		elif [[ -f "${version_path}" ]]; then
			VERSION="$(< "${version_path}")"
		else
			VERSION="${BUILD_SYSTEM}"
		fi
	fi

	if [[ -d "${vboot_tools_path}/devkeys/" ]]; then
		VBOOT_KEYS_PATH="${VBOOT_KEYS_PATH:-${vboot_tools_path}/devkeys/}"
	fi

	libreboot_setup_reproducible_builds_variables
}

libreboot_setup_reproducible_builds_variables() {
	local epoch_path="${root}/${DOTEPOCH}"
	local rnd_seed_path="${root}/${DOTRNDSEED}"

	# Used by GCC, e.g., -frandom-seed="${RANDOM_SEED}"
	if [[ -z "${RANDOM_SEED}" ]]; then
		if [[ -f "${rnd_seed_path}" ]]; then
			RANDOM_SEED="$(< "${rnd_seed_path}")"
		else
			RANDOM_SEED="${RANDOM}" # True randomness is unnecessary
		fi
	fi

	# Also used by GCC, but as an environment variable
	if [[ -z "${SOURCE_DATE_EPOCH}" ]]; then
		if git_check "${root}"; then
			SOURCE_DATE_EPOCH="$(git log -1 --format=%ct)"
		elif [[ -f "${epoch_path}" ]]; then
			SOURCE_DATE_EPOCH="$(< "${epoch_path}")"
		else
			SOURCE_DATE_EPOCH="$(date +%s)"
		fi
	fi

	# Relevant only when libfaketime is preloaded
	if [[ -n "${LIBFAKETIME_PATH}" ]]; then
		BUILD_DATE_FMT="%Y-%m-%d %H:%M:%S"
		BUILD_DATE="$(date -u -d "@${SOURCE_DATE_EPOCH}" "+${BUILD_DATE_FMT}" 2>/dev/null || date -u -r "${SOURCE_DATE_EPOCH}" "+${BUILD_DATE_FMT}" 2>/dev/null || date -u "+${BUILD_DATE_FMT}")"
		FAKETIME="@${BUILD_DATE}"
		LC_ALL='C.UTF-8'
		LD_PRELOAD="${LIBFAKETIME_PATH}"
		TZ='UTC'
	fi
}

libreboot() {
	action="$1"
	shift
	target="$1"
	shift

	set -e

	libreboot_setup "$@"

	if project_check "${target}"; then
		libreboot_project "${action}" "${target}" "$@"
	elif tool_check "${target}"; then
		libreboot_tool "${action}" "${target}" "$@"
	else
		libreboot_usage
		exit 1
	fi
}

libreboot "$@"