From f0643d39c141df52cbaf85b99d70e9a695d2a500 Mon Sep 17 00:00:00 2001
From: Federico Terzi <federicoterzi96@gmail.com>
Date: Sat, 12 Oct 2019 10:16:34 +0200
Subject: [PATCH] Add SHA256 hash also to Windows and MacOS releases. Fix #64

---
 ci/build-macos.yml |  1 +
 ci/build-win.yml   |  1 +
 packager.py        | 23 +++++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/ci/build-macos.yml b/ci/build-macos.yml
index ea7bee9..d4fd4d9 100644
--- a/ci/build-macos.yml
+++ b/ci/build-macos.yml
@@ -13,6 +13,7 @@ steps:
       set -e
       python packager.py build
       cp target/packager/mac/espanso-*.gz .
+      cp target/packager/mac/espanso-*.txt .
       cp target/packager/mac/espanso.rb .
       ls -la
     displayName: "Cargo build and packaging for MacOS"
\ No newline at end of file
diff --git a/ci/build-win.yml b/ci/build-win.yml
index 726a210..cc2fc33 100644
--- a/ci/build-win.yml
+++ b/ci/build-win.yml
@@ -12,6 +12,7 @@ steps:
   - script: |
       python packager.py build
       copy "target\\packager\\win\\espanso-win-installer.exe" "espanso-win-installer.exe"
+      copy "target\\packager\\win\\espanso-win-installer-sha256.txt" "espanso-win-installer-sha256.txt"
       dir
     displayName: "Build and packaging for Windows"
 
diff --git a/packager.py b/packager.py
index 8a0f141..2cc55cd 100644
--- a/packager.py
+++ b/packager.py
@@ -6,6 +6,7 @@ import hashlib
 import click
 import shutil
 import toml
+import hashlib
 import urllib.request
 from dataclasses import dataclass
 
@@ -106,6 +107,17 @@ def build_windows(package_info):
     print("Compiling installer with Inno setup")
     subprocess.run(["iscc", os.path.abspath(os.path.join(TARGET_DIR, "setupscript.iss"))])
 
+    print("Calculating the SHA256")
+    sha256_hash = hashlib.sha256()
+    with open(os.path.abspath(os.path.join(TARGET_DIR, INSTALLER_NAME+".exe")),"rb") as f:
+        # Read and update hash string value in blocks of 4K
+        for byte_block in iter(lambda: f.read(4096),b""):
+            sha256_hash.update(byte_block)
+
+        hash_file = os.path.abspath(os.path.join(TARGET_DIR, "espanso-win-installer-sha256.txt"))
+        with open(hash_file, "w") as hf:
+            hf.write(sha256_hash.hexdigest())
+
 
 def build_mac(package_info):
     print("Starting packaging process for MacOS...")
@@ -131,6 +143,17 @@ def build_mac(package_info):
                     ])
     print(f"Created archive: {archive_target}")
 
+    print("Calculating the SHA256")
+    sha256_hash = hashlib.sha256()
+    with open(archive_target,"rb") as f:
+        # Read and update hash string value in blocks of 4K
+        for byte_block in iter(lambda: f.read(4096),b""):
+            sha256_hash.update(byte_block)
+
+        hash_file = os.path.abspath(os.path.join(TARGET_DIR, "espanso-mac-sha256.txt"))
+        with open(hash_file, "w") as hf:
+            hf.write(sha256_hash.hexdigest())
+
     print("Processing Homebrew formula template")
     with open("packager/mac/espanso.rb", "r") as formula_template:
         content = formula_template.read()