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Verify SHA of downloaded net file

Browse source 
check SHA of the available and downloaded file.

Document the format requirement on the default net.

Also allow curl to make possibly insecure connections, as needed for old curl.

fixes https://github.com/official-stockfish/Stockfish/issues/2998

closes https://github.com/official-stockfish/Stockfish/pull/3000

No functional change.
This commit is contained in:
Joost VandeVondele 2020-08-13 22:54:13 +02:00
parent e8ea215a13
commit ce009ea1aa
2 changed files with 5 additions and 1 deletions
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4
src/Makefile
View file

@ -624,8 +624,10 @@ net:
$(eval nnuenet := $(shell grep EvalFile ucioption.cpp | grep Option | sed 's/.*\(nn-[a-z0-9]\{12\}.nnue\).*/\1/'))
@echo "Default net: $(nnuenet)"
$(eval nnuedownloadurl := https://tests.stockfishchess.org/api/nn/$(nnuenet))
$(eval curl_or_wget := $(shell if hash curl 2>/dev/null; then echo "curl -sL"; elif hash wget 2>/dev/null; then echo "wget -qO-"; fi))
$(eval curl_or_wget := $(shell if hash curl 2>/dev/null; then echo "curl -skL"; elif hash wget 2>/dev/null; then echo "wget -qO-"; fi))
@if test -f "$(nnuenet)"; then echo "Already available."; else echo "Downloading $(nnuedownloadurl)"; $(curl_or_wget) $(nnuedownloadurl) > $(nnuenet); fi
$(eval shasum_command := $(shell if hash shasum 2>/dev/null; then echo "shasum -a 256 "; elif hash sha256sum 2>/dev/null; then echo "sha256sum "; fi))
@if [ "$(nnuenet)" != "nn-"`$(shasum_command) $(nnuenet) | cut -c1-12`".nnue" ]; then echo "Failed download or $(nnuenet) corrupted, please delete!"; exit 1; fi
# clean binaries and objects
objclean:

2
src/ucioption.cpp
View file

@ -79,6 +79,8 @@ void init(OptionsMap& o) {
o["Syzygy50MoveRule"] << Option(true);
o["SyzygyProbeLimit"] << Option(7, 0, 7);
o["Use NNUE"] << Option(false, on_use_NNUE);
// The default must follow the format nn-[SHA256 first 12 digits].nnue
// for the build process (profile-build and fishtest) to work.
o["EvalFile"] << Option("nn-82215d0fd0df.nnue", on_eval_file);
}