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lua: move mkversion into a separate module
This commit moves all code, related to working with versions and which was used in box/lua/upgrade.lua, into a separate module and exports it to Lua API as 'internal.version' This is needed, as in the following commit we set names automatically only when schema version is more than 3.0.0. This module is used their in order to avoid code duplication. Follow-up tarantool#8978 NO_DOC=internal NO_TEST=<already tested> NO_CHANGELOG=internal
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| local bit = require('bit') | ||
| local ffi = require('ffi') | ||
|
|
||
| ffi.cdef([[ uint32_t box_dd_version_id(void); ]]) | ||
| local builtin = ffi.C | ||
|
|
||
| local mkversion_mt = { | ||
| __tostring = function(self) | ||
| return string.format('%s.%s.%s', self.major, self.minor, self.patch) | ||
| end, | ||
| __eq = function(lhs, rhs) | ||
| return lhs.id == rhs.id | ||
| end, | ||
| __lt = function(lhs, rhs) | ||
| return lhs.id < rhs.id | ||
| end, | ||
| } | ||
|
|
||
| local function mkversion_new(major, minor, patch) | ||
| local self = setmetatable({}, mkversion_mt) | ||
| self.major = major | ||
| self.minor = minor | ||
| self.patch = patch | ||
| self.id = bit.bor(bit.lshift(bit.bor(bit.lshift(major, 8), minor), 8), | ||
| patch) | ||
| return self | ||
| end | ||
|
|
||
| -- Parse string with version in format 'A.B.C' to version object. | ||
| local function mkversion_from_string(version) | ||
| local major, minor, patch = version:match('^(%d+)%.(%d+)%.(%d+)$') | ||
| if major == nil then | ||
| error('version should be in format A.B.C') | ||
| end | ||
| return mkversion_new(tonumber(major), tonumber(minor), tonumber(patch)) | ||
| end | ||
|
|
||
| local function mkversion_from_id(version_id) | ||
| local major = bit.band(bit.rshift(version_id, 16), 0xff) | ||
| local minor = bit.band(bit.rshift(version_id, 8), 0xff) | ||
| local patch = bit.band(version_id, 0xff) | ||
| return mkversion_new(major, minor, patch) | ||
| end | ||
|
|
||
| -- Schema version of the snapshot. | ||
| local function mkversion_get() | ||
| local version = builtin.box_dd_version_id() | ||
| return mkversion_from_id(version) | ||
| end | ||
|
|
||
| local function mkversion_from_tuple(tuple) | ||
| local major, minor, patch = tuple:unpack(2, 4) | ||
| patch = patch or 0 | ||
| if major and minor and type(major) == 'number' and | ||
| type(minor) == 'number' and type(patch) == 'number' then | ||
| return mkversion_new(major, minor, patch) | ||
| end | ||
| return nil | ||
| end | ||
|
|
||
| return setmetatable({ | ||
| new = mkversion_new, | ||
| get = mkversion_get, | ||
| from_id = mkversion_from_id, | ||
| from_tuple = mkversion_from_tuple, | ||
| from_string = mkversion_from_string, | ||
| }, { | ||
| __call = function(self, ...) return mkversion_new(...) end; | ||
| }) |
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