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nix-prefetch-git: Add support for $NIX_PREFETCH_GIT_DEEP_CLONE.

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svn path=/nixpkgs/trunk/; revision=19648
This commit is contained in:
Ludovic Courtès 2010-01-25 13:23:08 +00:00
parent d1c34b3a47
commit 45aa4e2d7f
1 changed files with 8 additions and 0 deletions
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8
pkgs/build-support/fetchgit/nix-prefetch-git
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@ -60,6 +60,14 @@ checkout_ref(){
local hash="$1";
local ref="$2";
if test -n "$NIX_PREFETCH_GIT_DEEP_CLONE"; then
# The caller explicitly asked for a deep clone. Deep clones
# allow "git describe" and similar tools to work. See
# http://thread.gmane.org/gmane.linux.distributions.nixos/3569
# for a discussion.
return 1
fi
if test -z "$ref"; then
ref=$(ref_from_hash $hash);
fi;