aboutsummaryrefslogtreecommitdiff
path: root/pbuilder-satisfydepends-funcs
blob: f431880ef3fc64eb7c3c289ef5a67f4e5f38c9b0 (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
#!/bin/bash
#   pbuilder -- personal Debian package builder
#   Copyright (C) 2001,2002,2003,2005-2007 Junichi Uekawa
#   Copyright (C) 2007 Loïc Minier
#
#   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, write to the Free Software
#   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
#
# module to satisfy build dependencies; common functions


function package_versions() {
	local PACKAGE="$1"
	( $CHROOTEXEC /usr/bin/apt-cache show "$PACKAGE" ) | sed -n 's/^Version: \(.*\)$/\1/p'
}

function candidate_version() {
	local PACKAGE="$1"
	LC_ALL=C $CHROOTEXEC apt-cache policy "$PACKAGE" | sed -n 's/ *Candidate: *\(.*\)/\1/p'
}

function checkbuilddep_versiondeps () {
    local PACKAGE="$1"
    local COMPARESTRING="$2"
    local DEPSVERSION="$3"
    local PACKAGEVERSIONS=$( package_versions "$PACKAGE" | xargs)
    # no versioned provides.
    if [ "${FORCEVERSION}" = "yes" ]; then
	return 0;
    fi
    for PACKAGEVERSION in $PACKAGEVERSIONS ; do
      if dpkg --compare-versions "$PACKAGEVERSION" "$COMPARESTRING" "$DEPSVERSION"; then
	# satisfies depends
	return 0;
      fi
    done
    echo "      Tried versions: $PACKAGEVERSIONS"
    # cannot satisfy depends
    return 1;
}

get_control_re() {
    # output the field which matches RE of control file in stdout.
    control="$1"
    re="$2"

    cat "$control" |
        awk '
        BEGIN { source=1 }
        /^$/ { source=0 }
        /^Source:/ { source=1 }
        /^[^ ]*:/ { p=0 }
        /^#/ { next }
        tolower($0) ~ /^'"$re"':/ { p=1 }
        { if (p && source) { print $0 } }' |
        sed 's/^[^: ]*://'
}

function checkbuilddep_archdeps () {
    # returns FALSE on INSTALL
    local INSTALLPKG="$1"
    local ARCH="$2"
    # architectures listed between [ and ] for this dep
    local DEP_ARCHES="$(echo "$INSTALLPKG" | sed 's/.*\[\(.*\)\].*/\1/')"
    # check for !$ARCH in DEP_ARCHES
    if echo "$DEP_ARCHES" | egrep -q "(^|[[:space:]/]+)\![[:space:]/]*$ARCH($|[[:space:]/]+)"; then
	return 0;
    fi
    # check for a "!" which would mean there's a !<otherarch> and hence $ARCH
    # is included
    if ! echo "$DEP_ARCHES" | grep -q '!'; then
        # check for $ARCH in DEP_ARCHES
	if ! echo "$DEP_ARCHES" | egrep -q "(^|[[:space:]/]+)$ARCH($|[[:space:]/]+)"; then
	    return 0;
	fi
    fi
    return 1;
}

function checkbuilddep_provides () {
    local PACKAGENAME="$1"
    # PROVIDED needs to be used outside of this function.
    PROVIDED=$($CHROOTEXEC /usr/bin/apt-cache showpkg $PACKAGENAME | awk '{p=0}/^Reverse Provides:/,/^$/{p=1}{if(p && ($0 !~ "Reverse Provides:")){PACKAGE=$1}} END{print PACKAGE}')
}

# returns either "package=version", to append to an apt-get install line, or
# package
function versioneddep_to_aptcmd () {
	local INSTALLPKG="$1"

	local PACKAGE
	local PACKAGE_WITHVERSION
	local PACKAGEVERSIONS
	local CANDIDATE_VERSION
	local COMPARESTRING
	local DEPSVERSION

	PACKAGE="$(echo "$INSTALLPKG" | sed -e 's/^[/]*//' -e 's/[[/(].*//')"
	PACKAGE_WITHVERSION="$PACKAGE"

	# if not versionned, we skip directly to outputting $PACKAGE
	if echo "$INSTALLPKG" | grep '[(]' > /dev/null; then
	    # package versions returned by APT, in reversed order
	    PACKAGEVERSIONS="$( package_versions "$PACKAGE" | tac | xargs )"
	    CANDIDATE_VERSION="$( candidate_version "$PACKAGE" )"

	    COMPARESTRING="$(echo "$INSTALLPKG" | tr "/" " " | sed 's/^.*( *\(<<\|<=\|>=\|=\|<\|>>\|>\) *\(.*\)).*$/\1/')"
	    DEPSVERSION="$(echo "$INSTALLPKG" | tr "/" " " | sed 's/^.*( *\(<<\|<=\|>=\|=\|<\|>>\|>\) *\(.*\)).*$/\2/')"
	    # if strictly versionned, we skip to outputting that version
	    if [ "=" = "$COMPARESTRING" ]; then
		PACKAGE_WITHVERSION="$PACKAGE=$DEPSVERSION"
	    else
		# try the candidate version, then all available versions (asc)
		for VERSION in $CANDIDATE_VERSION $PACKAGEVERSIONS; do
		    if dpkg --compare-versions "$VERSION" "$COMPARESTRING" "$DEPSVERSION"; then
			if [ $VERSION != $CANDIDATE_VERSION ]; then
			    PACKAGE_WITHVERSION="$PACKAGE=$VERSION"
			fi
			break;
		    fi
		done
	    fi
	fi

	echo "$PACKAGE_WITHVERSION"
}

function print_help () {
    # print out help message
    cat <<EOF
pbuilder-satisfydepends -- satisfy dependencies
Copyright 2002-2007  Junichi Uekawa <dancer@debian.org>

--help:        give help
--control:     specify control file (debian/control, *.dsc)
--chroot:      operate inside chroot
--binary-all:  include binary-all
--binary-arch: include binary-arch only
--echo:        echo mode, do nothing. (--force-version required for most operation)
--force-version: skip version check.
--continue-fail: continue even when failed.

EOF
}