8bc5104a6e
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 `$NIX_ATTRS_SH_FILE` points to a correct location, then use it.
Directly using `.attrs.sh` is problematic for `nix-shell(1)` usage
(see previous commit for more context), so prefer the environment
variable if possible.
* Otherwise, if `.attrs.sh` exists, then use it. See [1] for when this
can happen.
* If neither applies, it can be assumed that `__structuredAttrs` is
turned off and thus nothing needs to be done.
[1] It's possible that it doesn't exist at all - in case of Nix 2.3 or
it can point to a wrong location on older Nix versions with a bug in
`__structuredAttrs`.
24 lines
700 B
Bash
24 lines
700 B
Bash
if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi
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source $stdenv/setup
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echo "exporting $url (r$rev) into $out"
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if test -n "$http_proxy"; then
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# Configure proxy
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mkdir .subversion
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proxy="${http_proxy#*://}"
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echo '[global]' > .subversion/servers
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echo "http-proxy-host = ${proxy%:*}" >> .subversion/servers
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echo "http-proxy-port = ${proxy##*:}" >> .subversion/servers
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export HOME="$PWD"
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fi;
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if test -z "$LC_ALL"; then
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export LC_ALL="en_US.UTF-8"
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fi;
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svn export --trust-server-cert --non-interactive \
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${ignoreExternals:+--ignore-externals} ${ignoreKeywords:+--ignore-keywords} \
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-r "$rev" "$url" "$out"
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