From 67b8311400f0caebd19ba5ebb7c08942051da7b8 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 2 Aug 2020 00:54:15 +0800
Subject: [PATCH] feat: add util::digest_sha256

---
 Cargo.lock  | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  2 ++
 src/main.rs |  1 +
 src/util.rs | 12 ++++++++++
 4 files changed, 82 insertions(+)
 create mode 100644 src/util.rs

diff --git a/Cargo.lock b/Cargo.lock
index 6367876..dad271f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -53,6 +53,15 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.4.0"
@@ -108,6 +117,21 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
 
+[[package]]
+name = "cpuid-bool"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8aebca1129a03dc6dc2b127edd729435bbc4a37e1d5f4d7513165089ceb02634"
+
+[[package]]
+name = "digest"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "dtoa"
 version = "0.4.6"
@@ -224,6 +248,16 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60fb4bb6bba52f78a471264d9a3b7d026cc0af47b22cd2cffbc0b787ca003e63"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.14"
@@ -272,6 +306,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hex"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
+
 [[package]]
 name = "http"
 version = "0.2.1"
@@ -564,6 +604,12 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
 
+[[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+
 [[package]]
 name = "openssl"
 version = "0.10.30"
@@ -796,12 +842,14 @@ name = "rust-script-tool"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "hex",
  "lazy_static",
  "log",
  "pretty_env_logger",
  "reqwest",
  "serde",
  "serde_json",
+ "sha2",
  "tokio",
 ]
 
@@ -887,6 +935,19 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2933378ddfeda7ea26f48c555bdad8bb446bf8a3d17832dc83e380d444cfb8c1"
+dependencies = [
+ "block-buffer",
+ "cfg-if",
+ "cpuid-bool",
+ "digest",
+ "opaque-debug",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.2.0"
@@ -1080,6 +1141,12 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
 
+[[package]]
+name = "typenum"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
+
 [[package]]
 name = "unicase"
 version = "2.6.0"
diff --git a/Cargo.toml b/Cargo.toml
index 9a89e7b..debf287 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,3 +15,5 @@ reqwest = { version = "0.10", features = ["blocking", "json"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 lazy_static = "1.4.0"
+hex = "0.4.2"
+sha2 = "0.9.1"
diff --git a/src/main.rs b/src/main.rs
index 36dd9de..5ba7263 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,6 +8,7 @@ mod cmd_default;
 mod cmd_new;
 mod git;
 mod script;
+mod util;
 
 use cmd::{ Command, CommandError };
 use cmd_default::CommandDefault;
diff --git a/src/util.rs b/src/util.rs
new file mode 100644
index 0000000..e36975c
--- /dev/null
+++ b/src/util.rs
@@ -0,0 +1,12 @@
+use sha2::{  Digest, Sha256 };
+
+pub fn digest_sha256(bs: &[u8]) -> Vec<u8> {
+    let mut sha256 = Sha256::new();
+    sha256.update(bs);
+    sha256.finalize().to_vec()
+}
+
+#[test]
+fn test_digest_sha256() {
+    assert_eq!(hex::decode("b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9").unwrap(), digest_sha256(b"hello world"));
+}