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
|
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/portability.eclass,v 1.15 2010/02/26 18:09:43 grobian Exp $
#
# Author: Diego Pettenò <flameeyes@gentoo.org>
#
# This eclass is created to avoid using non-portable GNUisms inside ebuilds
#
# NB: If you add anything, please comment it!
# treecopy orig1 orig2 orig3 .... dest
#
# mimic cp --parents copy, but working on BSD userland as well
treecopy() {
dest=${!#}
files_count=$#
while(( $# > 1 )); do
dirstruct=$(dirname "$1")
mkdir -p "${dest}/${dirstruct}"
cp -pPR "$1" "${dest}/${dirstruct}"
shift
done
}
# seq min max
#
# compatibility function that mimes seq command if not available
seq() {
local p=$(type -P seq)
case $# in
1) min=1 max=$1 step=1 ;;
2) min=$1 max=$2 step=1 ;;
3) min=$1 max=$3 step=$2 ;;
*) die "seq called with wrong number of arguments" ;;
esac
if [[ -z ${p} ]] ; then
local reps
# BSD userland
if [[ ${step} != 0 ]]; then
reps=$(( ($max-$min) / $step +1 ))
else
reps=0
fi
jot $reps $min $max $step
else
"${p}" $min $step $max
fi
}
# Gets the linker flag to link to dlopen() function
dlopen_lib() {
# - Solaris needs nothing
# - Darwin needs nothing
# - *BSD needs nothing
# - Linux needs -ldl (glibc and uclibc)
# - Interix needs -ldl
case "${CHOST}" in
*-linux-gnu*|*-linux-uclibc|*-interix*)
echo "-ldl"
;;
esac
}
# Gets the home directory for the specified user
# it's a wrap around egetent as the position of the home directory in the line
# varies depending on the os used.
#
# To use that, inherit eutils, not portability!
egethome() {
ent=$(egetent passwd $1)
case ${CHOST} in
*-darwin*|*-freebsd*|*-dragonfly*)
# Darwin, OSX, FreeBSD and DragonFly use position 9 to store homedir
echo ${ent} | cut -d: -f9
;;
*)
# Linux, NetBSD and OpenBSD use position 6 instead
echo ${ent} | cut -d: -f6
;;
esac
}
# Gets the shell for the specified user
# it's a wrap around egetent as the position of the home directory in the line
# varies depending on the os used.
#
# To use that, inherit eutils, not portability!
egetshell() {
ent=$(egetent passwd "$1")
case ${CHOST} in
*-darwin*|*-freebsd*|*-dragonfly*)
# Darwin, OSX, FreeBSD and DragonFly use position 9 to store homedir
echo ${ent} | cut -d: -f10
;;
*)
# Linux, NetBSD and OpenBSD use position 6 instead
echo ${ent} cut -d: -f7
;;
esac
}
# Returns true if specified user has a shell that precludes logins
# on whichever operating system.
is-login-disabled() {
shell=$(egetshell "$1")
case ${shell} in
/bin/false|/usr/bin/false|/sbin/nologin|/usr/sbin/nologin)
return 0 ;;
*)
return 1 ;;
esac
}
# Gets the name of the BSD-ish make command (pmake from NetBSD)
#
# This will return make (provided by system packages) for BSD userlands,
# or bsdmake for Darwin userlands and pmake for the rest of userlands,
# both of which are provided by sys-devel/pmake package.
#
# Note: the bsdmake for Darwin userland is with compatibility with MacOSX
# default name.
get_bmake() {
if [[ ${USERLAND} == *BSD ]]; then
echo make
elif [[ ${USERLAND} == "Darwin" ]]; then
echo bsdmake
else
echo pmake
fi
}
# Portable method of getting mount names and points.
# Returns as "point node fs options"
# Remember to convert 040 back to a space.
get_mounts() {
local point= node= fs= opts= foo=
# Linux has /proc/mounts which should always exist
if [[ $(uname -s) == "Linux" ]] ; then
while read node point fs opts foo ; do
echo "${point} ${node} ${fs} ${opts}"
done < /proc/mounts
return
fi
# OK, pray we have a -p option that outputs mounts in fstab format
# using tabs as the seperator.
# Then pray that there are no tabs in the either.
# Currently only FreeBSD supports this and the other BSDs will
# have to be patched.
# Athough the BSD's may support /proc, they do NOT put \040 in place
# of the spaces and we should not force a /proc either.
local IFS=$'\t'
LC_ALL=C mount -p | while read node point fs foo ; do
opts=${fs#* }
fs=${fs%% *}
echo "${point// /\040} ${node// /\040} ${fs%% *} ${opts// /\040}"
done
}
|
GitWeb