mirror of
https://github.com/koreader/koreader
synced 2024-11-13 19:11:25 +00:00
90 lines
3.1 KiB
Lua
90 lines
3.1 KiB
Lua
--[[--
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This module helps with retrieving version information.
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]]
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local Version = {}
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--- Returns current KOReader git-rev.
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-- @treturn string full KOReader git-rev such as `v2015.11-982-g704d4238`
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function Version:getCurrentRevision()
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if not self.rev then
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local rev_file = io.open("git-rev", "r")
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if rev_file then
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self.rev = rev_file:read("*line")
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rev_file:close()
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end
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-- sanity check in case `git describe` failed
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if self.rev == "fatal: No names found, cannot describe anything." then
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self.rev = nil
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end
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end
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return self.rev
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end
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--- Returns normalized version of KOReader git-rev input string.
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-- @string rev full KOReader git-rev such as `v2015.11-982-g704d4238`
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-- @treturn int version in the form of a 10 digit number such as `2015110982`
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-- @treturn string short git commit version hash such as `704d4238`
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function Version:getNormalizedVersion(rev)
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if not rev then return end
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local year, month, point, revision = rev:match("v(%d%d%d%d)%.(%d%d)%.?(%d?%d?)-?(%d*)")
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year = tonumber(year)
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month = tonumber(month)
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point = tonumber(point)
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revision = tonumber(revision)
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local commit = rev:match("-%d*-g(%x*)[%d_%-]*")
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-- NOTE: * 10000 to handle at most 9999 commits since last tag ;).
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return ((year or 0) * 100 + (month or 0)) * 1000000 + (point or 0) * 10000 + (revision or 0), commit
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end
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--- Returns current version of KOReader.
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-- @treturn int version in the form of a 10 digit number such as `2015110982`
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-- @treturn string short git commit version hash such as `704d4238`
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-- @see getNormalizedVersion
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function Version:getNormalizedCurrentVersion()
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if not self.version or not self.commit then
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self.version, self.commit = self:getNormalizedVersion(self:getCurrentRevision())
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end
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return self.version, self.commit
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end
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--- Returns current version of KOReader, in short form.
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-- @treturn string version, without the git details (i.e., at most YYYY.MM.P-R)
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function Version:getShortVersion()
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if not self.short then
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local rev = self:getCurrentRevision()
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if (not rev or rev == "") then return "unknown" end
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local year, month, point, revision = rev:match("v(%d%d%d%d)%.(%d%d)%.?(%d?%d?)-?(%d*)")
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self.short = year .. "." .. month
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if point and point ~= "" then
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self.short = self.short .. "." .. point
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end
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if revision and revision ~= "" then
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self.short = self.short .. "-" .. revision
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end
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end
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return self.short
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end
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--- Returns the release date of the current version of KOReader, YYYYmmdd, in UTC.
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--- Technically closer to the build date, but close enough where official builds are concerned ;).
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-- @treturn int date
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function Version:getBuildDate()
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if not self.date then
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local lfs = require("libs/libkoreader-lfs")
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local mtime = lfs.attributes("git-rev", "modification")
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if mtime then
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local ts = os.date("!%Y%m%d", mtime)
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self.date = tonumber(ts) or 0
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else
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-- No git-rev file?
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self.date = 0
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end
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end
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return self.date
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end
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return Version
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