summaryrefslogtreecommitdiffstats
path: root/scripts/libmakepkg/util/source.sh.in
blob: 9d4ba4a65aa5a637f55d92d988e5ee2848452939 (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
#!/bin/bash
#
#   source.sh - functions to extract information from source URLs
#
#   Copyright (c) 2010-2016 Pacman Development Team <pacman-dev@archlinux.org>
#
#   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 "$LIBMAKEPKG_UTIL_SOURCE_SH" ]] && return
LIBMAKEPKG_UTIL_SOURCE_SH=1

LIBRARY=${LIBRARY:-'@libmakepkgdir@'}

source "$LIBRARY/util/message.sh"


# a source entry can have two forms :
# 1) "filename::http://path/to/file"
# 2) "http://path/to/file"

# extract the URL from a source entry
get_url() {
	# strip an eventual filename
	printf "%s\n" "${1#*::}"
}

# extract the protocol from a source entry - return "local" for local sources
get_protocol() {
	if [[ $1 = *://* ]]; then
		# strip leading filename
		local proto="${1#*::}"
		printf "%s\n" "${proto%%://*}"
	elif [[ $1 = *lp:* ]]; then
		local proto="${1#*::}"
		printf "%s\n" "${proto%%lp:*}"
	else
		printf "%s\n" local
	fi
}

# extract the filename from a source entry
get_filename() {
	local netfile=$1

	# if a filename is specified, use it
	if [[ $netfile = *::* ]]; then
		printf "%s\n" ${netfile%%::*}
		return
	fi

	local proto=$(get_protocol "$netfile")

	case $proto in
		bzr*|git*|hg*|svn*)
			filename=${netfile%%#*}
			filename=${filename%/}
			filename=${filename##*/}
			if [[ $proto = bzr* ]]; then
				filename=${filename#*lp:}
			fi
			if [[ $proto = git* ]]; then
				filename=${filename%%.git*}
			fi
			;;
		*)
			# if it is just an URL, we only keep the last component
			filename="${netfile##*/}"
			;;
	esac
	printf "%s\n" "${filename}"
}

# Return the absolute filename of a source entry
get_filepath() {
	local file="$(get_filename "$1")"
	local proto="$(get_protocol "$1")"

	case $proto in
		bzr*|git*|hg*|svn*)
			if [[ -d "$startdir/$file" ]]; then
				file="$startdir/$file"
			elif [[ -d "$SRCDEST/$file" ]]; then
				file="$SRCDEST/$file"
			else
				return 1
			fi
			;;
		*)
			if [[ -f "$startdir/$file" ]]; then
				file="$startdir/$file"
			elif [[ -f "$SRCDEST/$file" ]]; then
				file="$SRCDEST/$file"
			else
				return 1
			fi
			;;
	esac

	printf "%s\n" "$file"
}

get_downloadclient() {
	local proto=$1

	# loop through DOWNLOAD_AGENTS variable looking for protocol
	local i
	for i in "${DLAGENTS[@]}"; do
		local handler="${i%%::*}"
		if [[ $proto = "$handler" ]]; then
			local agent="${i#*::}"
			break
		fi
	done

	# if we didn't find an agent, return an error
	if [[ -z $agent ]]; then
		error "$(gettext "Unknown download protocol: %s")" "$proto"
		plain "$(gettext "Aborting...")"
		exit 1 # $E_CONFIG_ERROR
	fi

	# ensure specified program is installed
	local program="${agent%% *}"
	if [[ ! -x $program ]]; then
		local baseprog="${program##*/}"
		error "$(gettext "The download program %s is not installed.")" "$baseprog"
		plain "$(gettext "Aborting...")"
		exit 1 # $E_MISSING_PROGRAM
	fi

	printf "%s\n" "$agent"
}