From 5b50f90d2b98b539b091cbfc0ec6bacec124ec59 Mon Sep 17 00:00:00 2001
From: fdb-hiroshima <35889323+fdb-hiroshima@users.noreply.github.com>
Date: Fri, 10 May 2019 16:15:30 +0200
Subject: [PATCH] use openssl instead of sha256sum for build.rs (#568)

* use openssl instead of sha256sum for build.rs

* use a more portable flag for stat
---
 build.rs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/build.rs b/build.rs
index 6832254d..f1e2e819 100644
--- a/build.rs
+++ b/build.rs
@@ -5,7 +5,7 @@ use std::process::{Command, Stdio};
 use std::{env, fs::*, io::Write, path::PathBuf};
 
 fn compute_static_hash() -> String {
-    //"find static/ -type f ! -path 'static/media/*' | sort | xargs stat --printf='%n %Y\n' | sha256sum"
+    //"find static/ -type f ! -path 'static/media/*' | sort | xargs stat -c'%n %Y' | openssl dgst -r"
 
     let find = Command::new("find")
         .args(&["static/", "-type", "f", "!", "-path", "static/media/*"])
@@ -20,17 +20,19 @@ fn compute_static_hash() -> String {
         .expect("failed sort command");
 
     let xargs = Command::new("xargs")
-        .args(&["stat", "--printf='%n %Y\n'"])
+        .args(&["stat", "-c'%n %Y'"])
         .stdin(sort.stdout.unwrap())
         .stdout(Stdio::piped())
         .spawn()
         .expect("failed xargs command");
 
-    let sha = Command::new("sha256sum")
+    let mut sha = Command::new("openssl")
+        .args(&["dgst", "-r"])
         .stdin(xargs.stdout.unwrap())
         .output()
-        .expect("failed sha256sum command");
+        .expect("failed openssl command");
 
+    sha.stdout.resize(64, 0);
     String::from_utf8(sha.stdout).unwrap()
 }