Rename the coins folder to networks (#583)

* Rename the coins folder to networks

Ethereum isn't a coin. It's a network.

Resolves #357.

* More renames of coins -> networks in orchestration

* Correct paths in tests/

* cargo fmt

orchestration/src/networks/bitcoin.rs

@@ -0,0 +1,55 @@
+use std::path::Path;
+
+use crate::{Network, Os, mimalloc, os, write_dockerfile};
+
+pub fn bitcoin(orchestration_path: &Path, network: Network) {
+  #[rustfmt::skip]
+  const DOWNLOAD_BITCOIN: &str = r#"
+FROM alpine:latest as bitcoin
+
+ENV BITCOIN_VERSION=27.1
+
+RUN apk --no-cache add git gnupg
+
+# Download Bitcoin
+RUN wget https://bitcoincore.org/bin/bitcoin-core-${BITCOIN_VERSION}/bitcoin-${BITCOIN_VERSION}-$(uname -m)-linux-gnu.tar.gz \
+  && wget https://bitcoincore.org/bin/bitcoin-core-${BITCOIN_VERSION}/SHA256SUMS \
+  && wget https://bitcoincore.org/bin/bitcoin-core-${BITCOIN_VERSION}/SHA256SUMS.asc
+
+# Verify all sigs and check for a valid signature from laanwj -- 71A3
+RUN git clone https://github.com/bitcoin-core/guix.sigs && \
+  cd guix.sigs/builder-keys && \
+  find . -iname '*.gpg' -exec gpg --import {} \; && \
+  gpg --verify --status-fd 1 --verify ../../SHA256SUMS.asc ../../SHA256SUMS | grep "^\[GNUPG:\] VALIDSIG.*71A3B16735405025D447E8F274810B012346C9A6"
+
+RUN grep bitcoin-${BITCOIN_VERSION}-$(uname -m)-linux-gnu.tar.gz SHA256SUMS | sha256sum -c
+
+# Prepare Image
+RUN tar xzvf bitcoin-${BITCOIN_VERSION}-$(uname -m)-linux-gnu.tar.gz
+RUN mv bitcoin-${BITCOIN_VERSION}/bin/bitcoind .
+"#;
+
+  let setup = mimalloc(Os::Debian).to_string() + DOWNLOAD_BITCOIN;
+
+  let run_bitcoin = format!(
+    r#"
+COPY --from=bitcoin --chown=bitcoin bitcoind /bin
+
+EXPOSE 8332 8333
+
+ADD /orchestration/{}/networks/bitcoin/run.sh /
+CMD ["/run.sh"]
+"#,
+    network.label()
+  );
+
+  let run = os(Os::Debian, "", "bitcoin") + &run_bitcoin;
+  let res = setup + &run;
+
+  let mut bitcoin_path = orchestration_path.to_path_buf();
+  bitcoin_path.push("networks");
+  bitcoin_path.push("bitcoin");
+  bitcoin_path.push("Dockerfile");
+
+  write_dockerfile(bitcoin_path, &res);
+}