4 files changed, 163 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/rure/Cargo.lock b/nixpkgs/pkgs/development/libraries/rure/Cargo.lock
new file mode 100644
index 000000000000..68a1719d0801
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/rure/Cargo.lock
@@ -0,0 +1,61 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.149"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b"
+
+[[package]]
+name = "memchr"
+version = "2.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
+
+[[package]]
+name = "regex"
+version = "1.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "380b951a9c5e80ddfd6136919eef32310721aa4aacd4889a8d39124b026ab343"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f804c7828047e88b2d32e2d7fe5a105da8ee3264f01902f796c8e067dc2483f"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
+
+[[package]]
+name = "rure"
+version = "0.2.2"
+dependencies = [
+ "libc",
+ "regex",
+]
diff --git a/nixpkgs/pkgs/development/libraries/rure/default.nix b/nixpkgs/pkgs/development/libraries/rure/default.nix
new file mode 100644
index 000000000000..1771abd3367a
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/rure/default.nix
@@ -0,0 +1,46 @@
+{ lib
+, stdenv
+, rustPlatform
+, fetchCrate
+, fixDarwinDylibNames
+}:
+
+let
+  pin = lib.importJSON ./pin.json;
+in
+
+rustPlatform.buildRustPackage {
+  inherit (pin) pname version;
+
+  src = fetchCrate pin;
+
+  # upstream doesn't ship a Cargo.lock, is generated by the update script
+  postPatch = ''
+    cp ${./Cargo.lock} Cargo.lock
+  '';
+
+  cargoLock.lockFile = ./Cargo.lock;
+
+  outputs = [ "out" "dev" ];
+
+  # Headers are not handled by cargo nor buildRustPackage
+  postInstall = ''
+    install -Dm644 include/rure.h -t "$dev/include"
+  '';
+
+  nativeBuildInputs = lib.optionals stdenv.hostPlatform.isDarwin [
+    fixDarwinDylibNames
+  ];
+
+  passthru.updateScript = ./update.sh;
+
+  meta = {
+    description = "A C API for Rust's regular expression library";
+    homepage = "https://crates.io/crates/rure";
+    license = [
+      lib.licenses.mit
+      lib.licenses.asl20
+    ];
+    maintainers = [ lib.maintainers.sternenseemann ];
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/rure/pin.json b/nixpkgs/pkgs/development/libraries/rure/pin.json
new file mode 100644
index 000000000000..7e6b1101702e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/rure/pin.json
@@ -0,0 +1,5 @@
+{
+  "pname": "rure",
+  "version": "0.2.2",
+  "sha256": "0n2c9b8arfgcq1l7gr8dfcmdvdbggvfd0msy6sbx3bln74wwbr06"
+}
diff --git a/nixpkgs/pkgs/development/libraries/rure/update.sh b/nixpkgs/pkgs/development/libraries/rure/update.sh
new file mode 100755
index 000000000000..6e85d7cf03a7
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/rure/update.sh
@@ -0,0 +1,51 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -p nix jq curl cargo rsync
+#! nix-shell -i bash
+
+set -eu
+
+cd "$(dirname "$0")"
+
+crate=rure
+
+echo "Getting latest version from crates.io API" >&2
+
+curlOpts=(
+  -H "Accept: application/json"
+  -H "User-Agent: $crate update script (https://github.com/nixos/nixpkgs/)"
+)
+
+version="$(curl "${curlOpts[@]}" "https://crates.io/api/v1/crates/$crate" \
+  | jq -r .crate.max_stable_version)"
+
+echo "Prefetching latest tarball from crates.io" >&2
+
+url="https://crates.io/api/v1/crates/$crate/$version/download"
+prefetch="$(nix-prefetch-url --print-path --type sha256 --unpack "$url")"
+
+cat > pin.json <<EOF
+{
+  "pname": "$crate",
+  "version": "$version",
+  "sha256": "$(printf '%s' "$prefetch" | head -n1)"
+}
+EOF
+
+echo "Generating updated Cargo.lock" >&2
+
+tmp="$(mktemp -d)"
+
+cleanup() {
+  echo "Removing $tmp" >&2
+  rm -rf "$tmp"
+}
+
+trap cleanup EXIT
+
+rsync -a --chmod=ugo=rwX "$(printf '%s' "$prefetch" | tail -n1)/" "$tmp"
+
+pushd "$tmp"
+cargo update
+popd
+
+cp "$tmp/Cargo.lock" ./Cargo.lock