| 1 | #!/usr/bin/env lua |
| 2 | |
| 3 | -- script to compare the packages versions in 2 iso images |
| 4 | -- usage: compare-apks |
| 5 | |
| 6 | maxlen = 0 |
| 7 | |
| 8 | function read_package_list(file) |
| 9 | local a = {} |
| 10 | local h |
| 11 | -- h = io.popen("tar -O -zxf ".. file.." -- apks/INDEX.md5.gz | gunzip -c | awk '{ print $2}'") |
| 12 | |
| 13 | h = io.popen("isoinfo -R -f -i "..file.." | grep '.apk$' | sed 's:.*/::'") |
| 14 | for line in h:lines() do |
| 15 | p, v = string.match(line, "^(.+)-(%d.*).apk") |
| 16 | a[p] = v |
| 17 | if maxlen < #p + #v + 2 then |
| 18 | maxlen = #p + #v + 2 |
| 19 | end |
| 20 | end |
| 21 | h:close() |
| 22 | return a |
| 23 | end |
| 24 | |
| 25 | -- print all packages that exist in a1 but not in a2 |
| 26 | function missing_packages(a1, a2) |
| 27 | local ret = {} |
| 28 | local p,v |
| 29 | for p,v in pairs(a1) do |
| 30 | if a2[p] == nil then |
| 31 | table.insert(ret, p.."-"..v) |
| 32 | end |
| 33 | end |
| 34 | table.sort(ret) |
| 35 | return ret |
| 36 | end |
| 37 | |
| 38 | function unexpand_tabs(s, tab) |
| 39 | tab = tab or 8 |
| 40 | local pat = string.rep(".", tab) |
| 41 | s = string.gsub(s, pat, "%0\1") |
| 42 | s = string.gsub(s, " +\1", "\t") |
| 43 | s = string.gsub(s, "\1", "") |
| 44 | return s |
| 45 | end |
| 46 | |
| 47 | function upgraded_packages(a1, a2) |
| 48 | local p,v, tmp |
| 49 | local a = {} |
| 50 | for p,v in pairs(a2) do |
| 51 | if a1[p] and a1[p] ~= v then |
| 52 | tmp = unexpand_tabs(string.format("%-"..tostring(maxlen).."s(%s)", |
| 53 | p.."-"..v, a1[p])) |
| 54 | table.insert(a, tmp) |
| 55 | end |
| 56 | end |
| 57 | table.sort(a) |
| 58 | return a |
| 59 | end |
| 60 | |
| 61 | apks1 = read_package_list(arg[1]) |
| 62 | apks2 = read_package_list(arg[2]) |
| 63 | |
| 64 | print("Removed packages:") |
| 65 | for dummy,line in ipairs(missing_packages(apks1, apks2)) do |
| 66 | print(line) |
| 67 | end |
| 68 | print("\n") |
| 69 | |
| 70 | print("New packages:") |
| 71 | for dummy,line in ipairs(missing_packages(apks2, apks1)) do |
| 72 | print(line) |
| 73 | end |
| 74 | print("\n") |
| 75 | |
| 76 | print("Upgraded/downgraded packages (from version):") |
| 77 | for dummy,line in ipairs(upgraded_packages(apks1, apks2)) do |
| 78 | print(line) |
| 79 | end |
| 80 | |