diff options
Diffstat (limited to 'modules/luci-base/luasrc/model/ipkg.lua')
| -rw-r--r-- | modules/luci-base/luasrc/model/ipkg.lua | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/modules/luci-base/luasrc/model/ipkg.lua b/modules/luci-base/luasrc/model/ipkg.lua index 587637272..976081b84 100644 --- a/modules/luci-base/luasrc/model/ipkg.lua +++ b/modules/luci-base/luasrc/model/ipkg.lua @@ -122,7 +122,7 @@ function upgrade() end -- List helper -function _list(action, pat, cb) +local function _list(action, pat, cb) local fd = io.popen(ipkg .. " " .. action .. (pat and (" '%s'" % pat:gsub("'", "")) or "")) @@ -189,3 +189,43 @@ function overlay_root() return od end + +function compare_versions(ver1, comp, ver2) + if not ver1 or not ver2 + or not comp or not (#comp > 0) then + error("Invalid parameters") + return nil + end + -- correct compare string + if comp == "<>" or comp == "><" or comp == "!=" or comp == "~=" then comp = "~=" + elseif comp == "<=" or comp == "<" or comp == "=<" then comp = "<=" + elseif comp == ">=" or comp == ">" or comp == "=>" then comp = ">=" + elseif comp == "=" or comp == "==" then comp = "==" + elseif comp == "<<" then comp = "<" + elseif comp == ">>" then comp = ">" + else + error("Invalid compare string") + return nil + end + + local av1 = util.split(ver1, "[%.%-]", nil, true) + local av2 = util.split(ver2, "[%.%-]", nil, true) + + for i = 1, math.max(table.getn(av1),table.getn(av2)), 1 do + local s1 = av1[i] or "" + local s2 = av2[i] or "" + + -- first "not equal" found return true + if comp == "~=" and (s1 ~= s2) then return true end + -- first "lower" found return true + if (comp == "<" or comp == "<=") and (s1 < s2) then return true end + -- first "greater" found return true + if (comp == ">" or comp == ">=") and (s1 > s2) then return true end + -- not equal then return false + if (s1 ~= s2) then return false end + end + + -- all equal and not compare greater or lower then true + return not (comp == "<" or comp == ">") +end + |