Add crevsum tool

oherrala · Dec 18, 2018 · b221461 · b221461
1 parent 56366d4
commit b221461
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Showing 7 changed files with 89 additions and 2 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -6,5 +6,6 @@ members = [
 	"crev-bin",
 	"cargo-crev",
 	"recursive-digest",
-	"rblake2sum"
+	"rblake2sum",
+	"crevsum"
 ]
diff --git a/crevsum/Cargo.toml b/crevsum/Cargo.toml
@@ -0,0 +1,26 @@
+[package]
+name = "crevsum"
+version = "0.1.0"
+authors = ["Dawid Ciężarkiewicz <dpc@dpc.pw>"]
+edition = "2018"
+description = "Recursive digest as calculated by `crev`"
+keywords = ["data", "filesystem", "digest", "hash"]
+license = "MPL-2.0 OR MIT OR Apache-2.0"
+documentation = "https://docs.rs/rblake2sum"
+homepage = "https://github.com/dpc/crev/tree/master/rblake2sum"
+repository = "https://github.com/dpc/crev/tree/master/rblake2sum"
+readme = "README.md"
+
+[dependencies]
+base64 = "0.9.0"
+
+hex = "0.3"
+crev-recursive-digest = { path = "../recursive-digest", version = "0.1" }
+structopt = "0.2"
+common_failures = "0.1"
+failure = "0.1"
+
+
+[dependencies.crev-common]
+path = "../crev-common"
+version = "0.1"
diff --git a/crevsum/README.md b/crevsum/README.md
@@ -0,0 +1,3 @@
+# `rblake2sum`
+
+Calculate a recursive digest of paths, using [`crev-recursive-digest`](https://github.com/dpc/crev/tree/master/recursive-digest) algorithm.
diff --git a/crevsum/rustfmt.toml b/crevsum/rustfmt.toml
@@ -0,0 +1 @@
+merge_imports = true
diff --git a/crevsum/src/main.rs b/crevsum/src/main.rs
@@ -0,0 +1,29 @@
+extern crate structopt;
+
+mod opts;
+
+use common_failures::prelude::*;
+use structopt::StructOpt;
+
+use std::collections::HashSet;
+
+fn main() -> Result<()> {
+    let opts = opts::Opts::from_args();
+
+    for path in opts.paths {
+        let digest = crev_recursive_digest::get_recursive_digest_for_dir::<
+            crev_common::Blake2b256,
+            _,
+        >(&path, &HashSet::new())?;
+        println!(
+            "{} {}",
+            if opts.base64 {
+                crev_common::base64_encode(&digest)
+            } else {
+                hex::encode(digest)
+            },
+            path.display()
+        );
+    }
+    Ok(())
+}
diff --git a/crevsum/src/opts.rs b/crevsum/src/opts.rs
@@ -0,0 +1,14 @@
+use std::path::PathBuf;
+use structopt::StructOpt;
+
+#[derive(Debug, StructOpt, Clone)]
+#[structopt(
+    name = "rblake2sum",
+    about = "Calculate recursive blake2 digest for path or directory"
+)]
+pub struct Opts {
+    #[structopt(long = "base64")]
+    pub base64: bool,
+    #[structopt(parse(from_os_str))]
+    pub paths: Vec<PathBuf>,
+}
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		# `rblake2sum`

		Calculate a recursive digest of paths, using [`crev-recursive-digest`](https://github.com/dpc/crev/tree/master/recursive-digest) algorithm.