From ab8dd33e5cda3abe78d244f23e6097cd3e3bca4e Mon Sep 17 00:00:00 2001
From: Volth <volth@webmaster.ms>
Date: Wed, 5 Jul 2017 16:01:26 +0000
Subject: support old naming, just add escaping of unsafe chars

---
 pkgs/build-support/fetchgit/default.nix | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'pkgs/build-support/fetchgit')

diff --git a/pkgs/build-support/fetchgit/default.nix b/pkgs/build-support/fetchgit/default.nix
index 57afb1c4ab8..8e060b87ebd 100644
--- a/pkgs/build-support/fetchgit/default.nix
+++ b/pkgs/build-support/fetchgit/default.nix
@@ -1,9 +1,21 @@
-{stdenv, git, cacert, gitRepoToName}:
+{stdenv, git, cacert}: let
+  urlToName = url: rev: let
+    inherit (stdenv.lib) removeSuffix splitString last;
+    base = last (splitString ":" (baseNameOf (removeSuffix "/" url)));
 
+    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}";
+in
 { url, rev ? "HEAD", md5 ? "", sha256 ? "", leaveDotGit ? deepClone
 , fetchSubmodules ? true, deepClone ? false
 , branchName ? null
-, name ? gitRepoToName url rev
+, name ? urlToName url rev
 , # Shell code executed after the file has been fetched
   # successfully. This can do things like check or transform the file.
   postFetch ? ""
-- 
cgit 1.4.1