nixpkgs/pkgs/build-support/fetchhg/builder.sh

if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi
source $stdenv/setup
echo "getting $url${rev:+ ($rev)} into $out"

hg clone --insecure "$url" hg-clone

hg archive -q$subrepoClause -y ${rev:+-r "$rev"} --cwd hg-clone $out
rm -f $out/.hg_archival.txt
treewide: refactor `.attrs.sh` detection When specifying the `builder` attribute in `stdenv.mkDerivation`, this will be effectively transformed into builtins.derivation { builder = stdenv.shell; args = [ "-e" builder ]; } This also means that `default-builder.sh` is never sourced and as a result it's not guaranteed that `$NIX_ATTRS_SH_FILE` is set to a correct location[1]. Also, we need to source `.attrs.sh` to source `$stdenv`. So, the following is done now: * If `$NIX_ATTRS_SH_FILE` points to a correct location, then use it. Directly using `.attrs.sh` is problematic for `nix-shell(1)` usage (see previous commit for more context), so prefer the environment variable if possible. * Otherwise, if `.attrs.sh` exists, then use it. See [1] for when this can happen. * If neither applies, it can be assumed that `__structuredAttrs` is turned off and thus nothing needs to be done. [1] It's possible that it doesn't exist at all - in case of Nix 2.3 or it can point to a wrong location on older Nix versions with a bug in `__structuredAttrs`. 2023-09-28 13:09:26 +00:00			`if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi`
* Add a fetchhg builder to checkout mercurial repositories. svn path=/nixpkgs/trunk/; revision=18347 2009-11-14 20:14:21 +00:00			`source $stdenv/setup`
treewide: remove usages of header and stopNest they're obsolete 2023-01-15 22:08:12 +00:00			`echo "getting $url${rev:+ ($rev)} into $out"`
* Add a fetchhg builder to checkout mercurial repositories. svn path=/nixpkgs/trunk/; revision=18347 2009-11-14 20:14:21 +00:00
Fix regression in fetchhg. 2014-05-29 07:06:13 +00:00			`hg clone --insecure "$url" hg-clone`
* Add a fetchhg builder to checkout mercurial repositories. svn path=/nixpkgs/trunk/; revision=18347 2009-11-14 20:14:21 +00:00
fetchhg: add option to fetch hg subrepos 2015-04-01 14:02:07 +00:00			`hg archive -q$subrepoClause -y ${rev:+-r "$rev"} --cwd hg-clone $out`
Make fetchhg do the same as nix-prefetch-hg, use hg archive. Fixes #2781. 2014-05-28 08:40:21 +00:00			`rm -f $out/.hg_archival.txt`