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tdesktop: use parseDrvName to get Qt release version

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Closes #16559
This commit is contained in:
Nikolay Amiantov 2016-07-23 09:40:36 +03:00
parent d5adf1348b
commit cce1e9f2f4
1 changed files with 2 additions and 21 deletions
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23
pkgs/applications/networking/instant-messengers/telegram/tdesktop/default.nix
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@ -9,29 +9,10 @@
}:
let
/* Find the index of the first element in the list matching the specified
predicate or returns null if no such element exists.
Example:
findFirstIndex (x: x > 3) [ 1 6 4 ]
=> 1
*/
findFirstIndex = pred: list:
# Poor man's Either via a list.
let searchFun = old: curr:
if lib.isList old then old
else if pred curr then [old]
else old + 1;
res = lib.foldl searchFun 0 list;
in if lib.isList res then lib.elemAt res 0 else null;
extractVersion = ver:
let suffix = findFirstIndex (x: x == "-") (lib.stringToCharacters ver);
in if suffix == null then ver else lib.substring 0 suffix ver;
system-x86_64 = lib.elem stdenv.system lib.platforms.x86_64;
packagedQt = "5.6.0";
systemQt = extractVersion qtbase.version;
# Hacky: split "1.2.3-4" into "1.2.3" and "4"
systemQt = (builtins.parseDrvName qtbase.version).name;
in stdenv.mkDerivation rec {
name = "telegram-desktop-${version}";