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gitRepoToName: make it compatible with old fetchFromGitHub's "${repo}-${rev}-scr" to avoid mass rebuild

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This commit is contained in:
Volth 2017-07-04 20:09:34 +00:00
parent b935b21ffd
commit e7521e289c
1 changed files with 16 additions and 11 deletions
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27
pkgs/build-support/fetchgit/gitrepotoname.nix
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@ -1,14 +1,19 @@
{ lib }:
urlOrRepo: rev: let
inherit (lib) removeSuffix splitString last;
base = last (splitString ":" (baseNameOf (removeSuffix "/" urlOrRepo)));
let
inherit (lib) removeSuffix hasPrefix removePrefix splitString stringToCharacters concatMapStrings last elem;
matched = builtins.match "(.*).git" base;
short = builtins.substring 0 7 rev;
appendShort = if (builtins.match "[a-f0-9]*" rev) != null
then "-${short}"
else "";
in "${if matched == null then base else builtins.head matched}${appendShort}"
allowedChars = stringToCharacters "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-._?=";
sanitizeStoreName = s:
let
s' = concatMapStrings (c: if elem c allowedChars then c else "") (stringToCharacters s);
s'' = if hasPrefix "." s' then "_${removePrefix "." s'}" else s';
in
s'';
in
urlOrRepo: rev:
let
repo' = last (splitString ":" (baseNameOf (removeSuffix ".git" (removeSuffix "/" urlOrRepo))));
rev' = baseNameOf rev;
in
"${sanitizeStoreName repo'}-${sanitizeStoreName rev'}-src"