summaryrefslogtreecommitdiffstats
path: root/lib/deps.sh
blob: e38680a5249961504650ab9d1877a42d6b9fd9c6 (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
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
# opkbuild
# lib/deps
# Functions for parsing dependency field values.
#
# 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 2 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 "${_OB_DEPS_SM}" ] && return 0
_OB_DEPS_SM='true'

ob_use metadata

ob_parse_dep()
{
	_ob_local _obpd_opt _obpd_pkg_var _obpd_archqual_var _obpd_rel_var \
		_obpd_ver_var _obpd_arches_var _obpd_plats_var \
		_obpd_host_arch _obpd_host_plat _obpd_dep \
		_obpd_pkgarchqual _obpd_pkg _obpd_archqual \
		_obpd_relver _obpd_rel _obpd_ver _obpd_arches _obpd_plats \
		_obpd_comp _obpd_comp_var

	while getopts 'p:q:r:v:A:l:a:P:' _obpd_opt; do
		case "${_obpd_opt}" in
			p)
				_obpd_pkg_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_pkg_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			q)
				_obpd_archqual_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_archqual_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			r)
				_obpd_rel_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_rel_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			v)
				_obpd_ver_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_ver_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			A)
				_obpd_arches_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_arches_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			l)
				_obpd_plats_var="${OPTARG}"
				if ! _ob_validate_var_name "${_obpd_plats_var}"; then
					_ob_return 125
					return ${?}
				fi
				;;
			a)
				_obpd_host_arch="${OPTARG}"
				;;
			P)
				_obpd_host_plat="${OPTARG}"
				;;
			?)
				_ob_return 125
				return ${?}
				;;
		esac
	done
	shift $(($OPTIND - 1))

	if [ ${#} -eq 1 ]; then
		_obpd_dep="$(printf '%s\n' "${1}" | sed -n '
			H;                        # Store each input line in the hold space.
			${
			  g;                      # Restore everything to the pattern space.
			  s/[\t\n]/ /g;           # Replace tabs and newlines with spaces.
			  s/ *\([(\[<]\) */ \1/g; # One space before "(", "[", and "<".
			  s/ *\([)\]>]\) */\1 /g; # One space after "(", "[", and "<".
			  s/ *\(<[<=]\) */\1 /g;  # One space after "<<" and "<=".
			  s/ *\(>[>=]\) */\1 /g;  # One space after ">>" and ">=".
			  s/ *\(=\) */\1 /g;      # One space after "=".
			  s/^ *//;                # Remove leading spaces.
			  s/ *$//;                # Remove trailing spaces.
			  s/  */ /g;              # Remove duplicate spaces.
			  p;                      # Print the pattern space.
			};
			')"
	else
		_ob_return 125
		return ${?}
	fi

	# pkg[:archqual] [(rel ver)] [\[arches\]] [<plats>]

	_obpd_pkgarchqual="${_obpd_dep%% *}"
	_obpd_dep=" ${_obpd_dep#* }"
	_obpd_pkg="${_obpd_pkgarchqual%:*}"
	if [ "${_obpd_pkg}" != "${_obpd_pkgarchqual}" ]; then
		_obpd_archqual="${_obpd_pkgarchqual##*:}"
	fi

	if [ "${_obpd_dep# (*)}" != "${_obpd_dep}" ]; then
		_obpd_relver="${_obpd_dep# (}"
		_obpd_relver="${_obpd_relver%%)*}"
		_obpd_dep="${_obpd_dep# (*)}"
		_obpd_rel="${_obpd_relver% *}"
		_obpd_ver="${_obpd_relver##* }"
	fi

	if [ "${_obpd_dep# \[*\]}" != "${_obpd_dep}" ]; then
		_obpd_arches="${_obpd_dep# \[}"
		_obpd_arches="${_obpd_arches%%\]*}"
		_obpd_dep="${_obpd_dep# \[*\]}"
	fi

	if [ "${_obpd_dep# <*>}" != "${_obpd_dep}" ]; then
		_obpd_plats="${_obpd_dep# <}"
		_obpd_plats="${_obpd_plats%%>*}"
		_obpd_dep="${_obpd_dep# <*>}"
	fi

	# Set the specified variables.
	for _obpd_comp in pkg archqual rel ver arches plats; do
		_obpd_comp_var="$(eval echo \"\$\{_obpd_${_obpd_comp}_var\}\")"
		[ -z "${_obpd_comp_var}" ] && continue
		eval ${_obpd_comp_var}=\"\$\{_obpd_${_obpd_comp}\}\"
	done

	if [ -n "${_obpd_host_arch}" ] && ! ob_arch_is_concerned \
			"${_obpd_host_arch}" "${_obpd_arches}"; then
		_ob_return 0
		return ${?}
	fi
	if [ -n "${_obpd_host_plat}" ] && ! ob_plat_is_concerned \
			"${_obpd_host_plat}" "${_obpd_plats}"; then
		_ob_return 0
		return ${?}
	fi

	printf '%s' "${_obpd_pkg}"
	[ -n "${_obpd_archqual}" ] && printf ':%s' "${_obpd_archqual}"
	[ -n "${_obpd_ver}" ] && printf ' (%s %s)' "${_obpd_rel}" "${_obpd_ver}"
	[ -z "${_obpd_host_arch}" -a -n "${_obpd_arches}" ] && \
		printf ' [%s]' "${_obpd_arches}"
	[ -z "${_obpd_host_plat}" -a -n "${_obpd_plats}" ] && \
		printf ' [%s]' "${_obpd_plats}"
	printf '\n'

	_ob_return 0
	return ${?}
}

ob_reduce_deps()
{
	_ob_local _obrd_opt _obrd_host_arch _obrd_host_plat _obrd_deps \
		_obrd_dep_and _obrd_dep_or _obrd_dep_list _obrd_dep_or_list _obrd_dep

	_obrd_union='false'

	while getopts 'a:P:u' _obrd_opt; do
		case "${_obrd_opt}" in
			a)
				_obrd_host_arch="${OPTARG}"
				;;
			P)
				_obrd_host_plat="${OPTARG}"
				;;
			u)
				_obrd_union='true'
				;;
			?)
				_ob_return 125
				return ${?}
				;;
		esac
	done
	shift $(($OPTIND - 1))

	if [ ${#} -eq 1 ]; then
		_obrd_deps="${1}"
	else
		_ob_return 125
		return ${?}
	fi

	IFS=','
	for _obrd_dep_and in ${_obrd_deps}; do
		unset IFS
		if ! ${_obrd_union}; then
			IFS='|'
			_obrd_dep_or_list=
			for _obrd_dep_or in ${_obrd_dep_and}; do
				unset IFS
				_obrd_dep="$(ob_parse_dep -a "${_obrd_host_arch}" \
					-P "${_obrd_host_plat}" "${_obrd_dep_or}")"
				if [ -n "${_obrd_dep}" ]; then
					if [ -n "${_obrd_dep_or_list}" ]; then
						_obrd_dep_or_list="${_obrd_dep_or_list} | "
					fi
					_obrd_dep_or_list="${_obrd_dep_or_list}${_obrd_dep}"
				fi
			done
			if [ -n "${_obrd_dep_or_list}" ]; then
				if [ -n "${_obrd_dep_list}" ]; then
					_obrd_dep_list="${_obrd_dep_list}, "
				fi
				_obrd_dep_list="${_obrd_dep_list}${_obrd_dep_or_list}"
			fi
		else
			_obrd_dep="$(ob_parse_dep -a "${_obrd_host_arch}" \
				-P "${_obrd_host_plat}" "${_obrd_dep_and}")"
			if [ -n "${_obrd_dep}" ]; then
				if [ -n "${_obrd_dep_list}" ]; then
					_obrd_dep_list="${_obrd_dep_list}, "
				fi
				_obrd_dep_list="${_obrd_dep_list}${_obrd_dep}"
			fi
		fi
	done
	unset IFS

	echo "${_obrd_dep_list}"

	_ob_return 0
	return ${?}
}