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
|
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
inherit user
EXPORT_FUNCTIONS pkg_setup
# @ECLASS: postgres.eclass
# @MAINTAINER:
# PostgreSQL <pgsql-bugs@gentoo.org>
# @AUTHOR:
# Aaron W. Swenson <titanofold@gentoo.org>
# @SUPPORTED_EAPIS: 5 6 7
# @BLURB: An eclass for PostgreSQL-related packages
# @DESCRIPTION:
# This eclass provides common utility functions that many
# PostgreSQL-related packages perform, such as checking that the
# currently selected PostgreSQL slot is within a range, adding a system
# user to the postgres system group, and generating dependencies.
case ${EAPI:-0} in
5|6|7) ;;
*) die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}" ;;
esac
# @ECLASS-VARIABLE: _POSTGRES_ALL_VERSIONS
# @INTERNAL
# @DESCRIPTION:
# List of versions to reverse sort POSTGRES_COMPAT slots
_POSTGRES_ALL_VERSIONS=( 9999 14 13 12 11 10 9.6 9.5 9.4 9.3 9.2 )
# @ECLASS-VARIABLE: POSTGRES_COMPAT
# @PRE_INHERIT
# @DEFAULT_UNSET
# @DESCRIPTION:
# A Bash array containing a list of compatible PostgreSQL slots as
# defined by the developer. If declared, must be declared before
# inheriting this eclass. Example:
#@CODE
#POSTGRES_COMPAT=( 9.2 9.3 9.4 9.5 9.6 10 )
#POSTGRES_COMPAT=( 9.{2,3} 9.{4..6} 10 ) # Same as previous
#@CODE
# @ECLASS-VARIABLE: POSTGRES_DEP
# @DESCRIPTION:
# An automatically generated dependency string suitable for use in
# DEPEND and RDEPEND declarations.
POSTGRES_DEP="dev-db/postgresql:="
# @ECLASS-VARIABLE: POSTGRES_USEDEP
# @PRE_INHERIT
# @DEFAULT_UNSET
# @DESCRIPTION:
# Add the 2-Style and/or 4-Style use dependencies without brackets to be used
# for POSTGRES_DEP. If declared, must be declared before inheriting this eclass.
declare -p POSTGRES_USEDEP &>/dev/null && POSTGRES_DEP+="[${POSTGRES_USEDEP}]"
# @ECLASS-VARIABLE: POSTGRES_REQ_USE
# @DEFAULT_UNSET
# @DESCRIPTION:
# An automatically generated REQUIRED_USE-compatible string built upon
# POSTGRES_COMPAT. REQUIRED_USE="... ${POSTGRES_REQ_USE}" is only
# required if the package must build against one of the PostgreSQL slots
# declared in POSTGRES_COMPAT.
# @ECLASS-VARIABLE: _POSTGRES_COMPAT
# @INTERNAL
# @DESCRIPTION:
# Copy of POSTGRES_COMPAT, reverse sorted
_POSTGRES_COMPAT=()
if declare -p POSTGRES_COMPAT &> /dev/null ; then
# Reverse sort the given POSTGRES_COMPAT so that the most recent
# slot is preferred over an older slot.
# -- do we care if dependencies are deterministic by USE flags?
for i in ${_POSTGRES_ALL_VERSIONS[@]} ; do
has ${i} ${POSTGRES_COMPAT[@]} && _POSTGRES_COMPAT+=( ${i} )
done
POSTGRES_DEP=""
POSTGRES_REQ_USE=" || ("
for slot in "${_POSTGRES_COMPAT[@]}" ; do
POSTGRES_DEP+=" postgres_targets_postgres${slot/\./_}? ( dev-db/postgresql:${slot}="
declare -p POSTGRES_USEDEP &>/dev/null && \
POSTGRES_DEP+="[${POSTGRES_USEDEP}]"
POSTGRES_DEP+=" )"
IUSE+=" postgres_targets_postgres${slot/\./_}"
POSTGRES_REQ_USE+=" postgres_targets_postgres${slot/\./_}"
done
POSTGRES_REQ_USE+=" )"
fi
# @FUNCTION: postgres_check_slot
# @DESCRIPTION:
# Verify that the currently selected PostgreSQL slot is set to one of
# the slots defined in POSTGRES_COMPAT. Automatically dies unless a
# POSTGRES_COMPAT slot is selected. Should be called in pkg_pretend().
postgres_check_slot() {
if ! declare -p POSTGRES_COMPAT &>/dev/null; then
die 'POSTGRES_COMPAT not declared.'
fi
# Don't die because we can't run postgresql-config during pretend.
[[ "$EBUILD_PHASE" = "pretend" && -z "$(which postgresql-config 2> /dev/null)" ]] \
&& return 0
if has $(postgresql-config show 2> /dev/null) "${POSTGRES_COMPAT[@]}"; then
return 0
else
eerror "PostgreSQL slot must be set to one of: "
eerror " ${POSTGRES_COMPAT[@]}"
die "Incompatible PostgreSQL slot eselected"
fi
}
# @FUNCTION: postgres_new_user
# @USAGE: [user [(uid|-1) [(shell|-1) [(homedir|-1) [groups]]]]]
# @DESCRIPTION:
# Creates the "postgres" system group and user -- which is separate from
# the database user -- and, optionally, the developer defined user. There
# are no required parameters.
#
# When given a user to create, it'll be created with the next available
# uid, default shell set to /bin/false, default homedir is /dev/null,
# and added to the "postgres" system group. You can use "-1" to skip any
# parameter except user or groups.
postgres_new_user() {
enewgroup postgres 70
enewuser postgres 70 /bin/bash /var/lib/postgresql postgres
if [[ $# -gt 0 ]] ; then
if [[ "$1" = "postgres" ]] ; then
ewarn "Username 'postgres' implied, skipping"
else
local groups=$5
[[ -n "${groups}" ]] && groups+=",postgres" || groups="postgres"
enewuser "$1" "${2:--1}" "${3:--1}" "${4:--1}" "${groups}"
fi
fi
}
# @FUNCTION: postgres_pkg_setup
# @DESCRIPTION:
# Initialize environment variable(s) according to the best
# installed version of PostgreSQL that is also in POSTGRES_COMPAT. This
# is required if pkg_setup() is declared in the ebuild.
# Exports PG_SLOT, PG_CONFIG, and PKG_CONFIG_PATH.
postgres_pkg_setup() {
debug-print-function ${FUNCNAME} "${@}"
local compat_slot
local best_slot
for compat_slot in "${_POSTGRES_COMPAT[@]}"; do
if use "postgres_targets_postgres${compat_slot/\./_}"; then
best_slot="${compat_slot}"
break
fi
done
if [[ -z "${best_slot}" ]]; then
local flags f
for f in "${_POSTGRES_COMPAT[@]}"; do
flags+=" postgres${f/./_}"
done
eerror "POSTGRES_TARGETS must contain at least one of:"
eerror " ${flags}"
die "No suitable POSTGRES_TARGETS enabled."
fi
export PG_SLOT=${best_slot}
export PG_CONFIG=$(which pg_config${best_slot//./})
local pg_pkg_config_path="$(${PG_CONFIG} --libdir)/pkgconfig"
if [[ -n "${PKG_CONFIG_PATH}" ]]; then
export PKG_CONFIG_PATH="${pg_pkg_config_path}:${PKG_CONFIG_PATH}"
else
export PKG_CONFIG_PATH="${pg_pkg_config_path}"
fi
elog "PostgreSQL Target: ${best_slot}"
}
|
