1 | -- This script will handle Allow-Duplicated packages when more |
---|
2 | -- than one is available during an install operation, and will |
---|
3 | -- also upgrade these packages in a dist-upgrade operation (if |
---|
4 | -- they match a regex in RPM::Allow-Duplicated-Upgrade). |
---|
5 | -- |
---|
6 | -- This script must be plugged in the following slots: |
---|
7 | -- |
---|
8 | -- Scripts::AptGet::Install::SelectPackage |
---|
9 | -- Scripts::AptGet::DistUpgrade |
---|
10 | -- Scripts::Synaptic::DistUpgrade |
---|
11 | -- |
---|
12 | -- Author: Gustavo Niemeyer <niemeyer@conectiva.com> |
---|
13 | |
---|
14 | rex = require("rex_posix") |
---|
15 | |
---|
16 | function realname(name) |
---|
17 | local s, e, name = string.find(name, "(.+)#") |
---|
18 | return name |
---|
19 | end |
---|
20 | |
---|
21 | function get_pkglist(name) |
---|
22 | local j = 1 |
---|
23 | local packages = {} |
---|
24 | for i, p in ipairs(pkglist()) do |
---|
25 | if realname(pkgname(p)) == name then |
---|
26 | packages[j] = p |
---|
27 | j = j + 1 |
---|
28 | end |
---|
29 | end |
---|
30 | return packages |
---|
31 | end |
---|
32 | |
---|
33 | -- select best choice of virtual provided packages |
---|
34 | function select_goodpackage(packages) |
---|
35 | local goodpkg = packages[1] |
---|
36 | local goodpkgname = realname(pkgname(goodpkg)) |
---|
37 | |
---|
38 | if goodpkgname then |
---|
39 | -- Check if every package has the same real name, and |
---|
40 | -- leave only the one with the greatest version, if |
---|
41 | -- that's the case. |
---|
42 | for i = 2, table.getn(packages) do |
---|
43 | local nextpkg = packages[i] |
---|
44 | local nextpkgname = realname(pkgname(nextpkg)) |
---|
45 | if nextpkgname ~= goodpkgname then |
---|
46 | --markkeep(goodpkg) |
---|
47 | goodpkg = nil |
---|
48 | break |
---|
49 | end |
---|
50 | if not pkgvercand(goodpkg) |
---|
51 | or pkgvercand(nextpkg) and |
---|
52 | verstrcmp(verstr(pkgvercand(goodpkg)), |
---|
53 | verstr(pkgvercand(nextpkg))) == -1 then |
---|
54 | --markkeep(goodpkg) |
---|
55 | goodpkg = nextpkg |
---|
56 | end |
---|
57 | end |
---|
58 | if goodpkg and pkgvercand(goodpkg) then |
---|
59 | selected = goodpkg |
---|
60 | markinstall(goodpkg) |
---|
61 | end |
---|
62 | end |
---|
63 | if not selected then |
---|
64 | -- Strip #... from package names if we can't find a good solution. |
---|
65 | for i, name in ipairs(packagenames) do |
---|
66 | local name = realname(name) |
---|
67 | if name and name ~= virtualname then |
---|
68 | packagenames[i] = name |
---|
69 | end |
---|
70 | end |
---|
71 | end |
---|
72 | end |
---|
73 | |
---|
74 | if script_slot == "Scripts::AptGet::Install::PreResolve" then |
---|
75 | for i, pkg in ipairs(pkglist()) do |
---|
76 | s, e, name = string.find(pkgname(pkg), "(.+)#") |
---|
77 | if statinstall(pkg) and s then |
---|
78 | -- unmark selected packages |
---|
79 | markkeep(pkg) |
---|
80 | local packages = {} |
---|
81 | packages = get_pkglist(name) |
---|
82 | |
---|
83 | select_goodpackage(packages) |
---|
84 | end |
---|
85 | end |
---|
86 | end |
---|
87 | |
---|
88 | if script_slot == "Scripts::AptGet::Install::SelectPackage" then |
---|
89 | local found = 0 |
---|
90 | for i, pkg in ipairs(packages) do |
---|
91 | p = pkgfind(pkgname(pkg)) |
---|
92 | if pkgvercur(p) then |
---|
93 | found = 1 |
---|
94 | end |
---|
95 | end |
---|
96 | if found == 0 then |
---|
97 | select_goodpackage(packages) |
---|
98 | end |
---|
99 | end |
---|
100 | |
---|
101 | if script_slot == "Scripts::AptGet::DistUpgrade" or |
---|
102 | script_slot == "Scripts::AptGet::Upgrade" or |
---|
103 | script_slot == "Scripts::Synaptic::DistUpgrade" or |
---|
104 | script_slot == "Scripts::Synaptic::Upgrade" then |
---|
105 | -- Automatically install newer versions of all packages which |
---|
106 | -- are registered in the Allow-Duplicated scheme and are matched |
---|
107 | -- by the regular expressions in RPM::Allow-Duplicated-Upgrade. |
---|
108 | |
---|
109 | -- Compile expressions with package names which should |
---|
110 | -- be considered for upgrade. |
---|
111 | local updatelist = confgetlist("RPM::Allow-Duplicated-Upgrade") |
---|
112 | for i, expr in ipairs(updatelist) do |
---|
113 | updatelist[i] = rex.new(expr) |
---|
114 | end |
---|
115 | |
---|
116 | if table.getn(updatelist) ~= 0 then |
---|
117 | |
---|
118 | -- Gather information about Allow-Duplicated packges. |
---|
119 | local canddups = {} |
---|
120 | local curdups = {} |
---|
121 | for i, pkg in pairs(pkglist()) do |
---|
122 | local name = realname(pkgname(pkg)) |
---|
123 | if name then |
---|
124 | if pkgvercur(pkg) then |
---|
125 | if not curdups[name] then |
---|
126 | curdups[name] = {} |
---|
127 | end |
---|
128 | table.insert(curdups[name], |
---|
129 | verstr(pkgvercur(pkg))) |
---|
130 | elseif pkgvercand(pkg) then |
---|
131 | if not canddups[name] then |
---|
132 | canddups[name] = {} |
---|
133 | end |
---|
134 | table.insert(canddups[name], |
---|
135 | verstr(pkgvercand(pkg))) |
---|
136 | end |
---|
137 | end |
---|
138 | end |
---|
139 | |
---|
140 | -- Compile expressions with package names which should be hold. |
---|
141 | local holdlist = confgetlist("RPM::Hold") |
---|
142 | for i, expr in ipairs(holdlist) do |
---|
143 | holdlist[i] = rex.new(expr) |
---|
144 | end |
---|
145 | |
---|
146 | -- Remove packages without any matches in updatelist, or with |
---|
147 | -- any matches in holdlist. |
---|
148 | for name, _ in pairs(curdups) do |
---|
149 | local found = false |
---|
150 | for i, expr in ipairs(updatelist) do |
---|
151 | if expr:match(name) then |
---|
152 | found = true |
---|
153 | break |
---|
154 | end |
---|
155 | end |
---|
156 | if found then |
---|
157 | for i, expr in ipairs(holdlist) do |
---|
158 | if expr:match(name) then |
---|
159 | found = false |
---|
160 | break |
---|
161 | end |
---|
162 | end |
---|
163 | end |
---|
164 | if not found then |
---|
165 | curdups[name] = nil |
---|
166 | end |
---|
167 | end |
---|
168 | |
---|
169 | -- Mark the newest packages for installation. |
---|
170 | for name, _ in pairs(curdups) do |
---|
171 | if canddups[name] then |
---|
172 | -- Check the best candidate version. |
---|
173 | local bestver = nil |
---|
174 | for i, ver in ipairs(canddups[name]) do |
---|
175 | if not bestver or |
---|
176 | verstrcmp(bestver, ver) == -1 then |
---|
177 | bestver = ver |
---|
178 | end |
---|
179 | end |
---|
180 | |
---|
181 | -- Now check if it's newer than all installed |
---|
182 | -- versions. |
---|
183 | for i, ver in ipairs(curdups[name]) do |
---|
184 | if verstrcmp(ver, bestver) == 1 then |
---|
185 | bestver = nil |
---|
186 | break |
---|
187 | end |
---|
188 | end |
---|
189 | |
---|
190 | -- Finally, mark it for installation. |
---|
191 | if bestver then |
---|
192 | markinstall(name.."#"..bestver) |
---|
193 | end |
---|
194 | end |
---|
195 | end |
---|
196 | end |
---|
197 | end |
---|
198 | |
---|
199 | -- vim:ts=4:sw=4:et |
---|