summaryrefslogtreecommitdiffstats
path: root/lib/deps.sh
blob: 0e23c94d36fedb90d96d72eb96e0cec2b70866b8 (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
# 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 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 "${_OB_DEPS_SM}" ] && return 0
_OB_DEPS_SM='true'

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

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

	if [ "${#}" -eq 1 ]; then
		# Separate components with spaces.
		_obpd_dep="$(echo "${1}" | \
			sed 's/\([(\[]\)/ \1/g;s/\([<>=][<>=]*\)/\1 /g')"
		# Remove leading, trailing, and duplicate spaces.
		_obpd_dep="$(IFS=' ' echo ${_obpd_dep})"
	else
		_ob_return 125
		return ${?}
	fi

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

	_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# \[}"
		_obpd_arches="${_obpd_arches%%\]*}"
	fi

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

	if [ -z "${_obpd_host_arch}" ]; then
		printf '%s' "${_obpd_pkg}"
		[ -n "${_obpd_archqual}" ] && printf ':%s' "${_obpd_archqual}"
		[ -n "${_obpd_ver}" ] && printf ' (%s %s)' "${_obpd_rel}" "${_obpd_ver}"
		[ -n "${_obpd_arches}" ] && printf ' [%s]' "${_obpd_arches}"
		printf '\n'
	elif _ob_dep_arch_is_concerned "${_obpd_host_arch}"; then
		printf '%s' "${_obpd_pkg}"
		[ -n "${_obpd_archqual}" ] && printf ':%s' "${_obpd_archqual}"
		[ -n "${_obpd_ver}" ] && printf ' (%s %s)' "${_obpd_rel}" "${_obpd_ver}"
		printf '\n'
	fi

	_ob_return 0
	return ${?}
}

ob_reduce_deps()
{
	_ob_local _obrd_opt _obrd_host_arch _obrd_deps \
		_obrd_orig_ifs _obrd_dep_and _obrd_dep_or

	_obrd_union=false

	while getopts 'a:u' _obrd_opt; do
		case "${_obrd_opt}" in
			a)
				_obrd_host_arch="${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

	_obrd_orig_ifs="${IFS}"
	IFS=', '
	for _obrd_dep_and in ${_obrd_deps}; do
		if ! ${_obrd_union}; then
			IFS='| '
			for _obrd_dep_or in ${_obrd_deps}; do
				:
			done
		else
			:
		fi
	done

	_ob_return 0
	return ${?}
}

_ob_dep_arch_is_concerned()
{
	_ob_local _obdaic_host_arch _obdaic_arches \
		_obdaic_arch _obdaic_not_arch _obdaic_seen_arch

	_obdaic_host_arch="${1}"
	_obdaic_arches="${2}"
	_obdaic_seen_arch=1

	for _obdaic_arch in ${_obdaic_arches}; do
		_obdaic_not_arch="${_obdaic_arch#!}"
		if [ "${_obdaic_not_arch}" != "${_obdaic_arch}" ]; then
			if ob_match_arch "${_obdaic_host_arch}" "${_obdaic_not_arch}"; then
				_obdaic_seen_arch=1
				break
			else
				_obdaic_seen_arch=0
			fi
		elif ob_match_arch "${_obdaic_host_arch}" "${_obdaic_arch}"; then
			_obdaic_seen_arch=0
			break
		fi
	done

	_ob_return ${_obdaic_seen_arch}
	return ${?}
}