From 38eb91eb0616ed6dbe34c23e11588d130fef07f8 Mon Sep 17 00:00:00 2001
From: Carl Dong <contact@carldong.me>
Date: Thu, 4 Feb 2021 19:09:48 -0500
Subject: guix: Add codesigning functionality

---
 contrib/guix/libexec/codesign.sh | 103 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100755 contrib/guix/libexec/codesign.sh

(limited to 'contrib/guix/libexec/codesign.sh')

diff --git a/contrib/guix/libexec/codesign.sh b/contrib/guix/libexec/codesign.sh
new file mode 100755
index 0000000000..46b42a5712
--- /dev/null
+++ b/contrib/guix/libexec/codesign.sh
@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+export TZ=UTC
+
+# Although Guix _does_ set umask when building its own packages (in our case,
+# this is all packages in manifest.scm), it does not set it for `guix
+# environment`. It does make sense for at least `guix environment --container`
+# to set umask, so if that change gets merged upstream and we bump the
+# time-machine to a commit which includes the aforementioned change, we can
+# remove this line.
+#
+# This line should be placed before any commands which creates files.
+umask 0022
+
+if [ -n "$V" ]; then
+    # Print both unexpanded (-v) and expanded (-x) forms of commands as they are
+    # read from this file.
+    set -vx
+    # Set VERBOSE for CMake-based builds
+    export VERBOSE="$V"
+fi
+
+# Check that required environment variables are set
+cat << EOF
+Required environment variables as seen inside the container:
+    UNSIGNED_TARBALL: ${UNSIGNED_TARBALL:?not set}
+    DETACHED_SIGS_REPO: ${DETACHED_SIGS_REPO:?not set}
+    DIST_ARCHIVE_BASE: ${DIST_ARCHIVE_BASE:?not set}
+    DISTNAME: ${DISTNAME:?not set}
+    HOST: ${HOST:?not set}
+    SOURCE_DATE_EPOCH: ${SOURCE_DATE_EPOCH:?not set}
+    DISTSRC: ${DISTSRC:?not set}
+    OUTDIR: ${OUTDIR:?not set}
+EOF
+
+ACTUAL_OUTDIR="${OUTDIR}"
+OUTDIR="${DISTSRC}/output"
+
+git_head_version() {
+    local recent_tag
+    if recent_tag="$(git -C "$1" describe --exact-match HEAD 2> /dev/null)"; then
+        echo "${recent_tag#v}"
+    else
+        git -C "$1" rev-parse --short=12 HEAD
+    fi
+}
+
+CODESIGNATURE_GIT_ARCHIVE="${DIST_ARCHIVE_BASE}/${DISTNAME}-codesignatures-$(git_head_version "$DETACHED_SIGS_REPO").tar.gz"
+
+# Create the codesignature tarball if not already there
+if [ ! -e "$CODESIGNATURE_GIT_ARCHIVE" ]; then
+    mkdir -p "$(dirname "$CODESIGNATURE_GIT_ARCHIVE")"
+    git -C "$DETACHED_SIGS_REPO" archive --output="$CODESIGNATURE_GIT_ARCHIVE" HEAD
+fi
+
+mkdir -p "$OUTDIR"
+cat << EOF > "$OUTDIR"/inputs.SHA256SUMS
+$(sha256sum "$UNSIGNED_TARBALL" | cut -d' ' -f1)  inputs/$(basename "$UNSIGNED_TARBALL")
+$(sha256sum "$CODESIGNATURE_GIT_ARCHIVE" | cut -d' ' -f1)  inputs/$(basename "$CODESIGNATURE_GIT_ARCHIVE")
+EOF
+
+mkdir -p "$DISTSRC"
+(
+    cd "$DISTSRC"
+
+    tar -xf "$UNSIGNED_TARBALL"
+
+    mkdir -p codesignatures
+    tar -C codesignatures -xf "$CODESIGNATURE_GIT_ARCHIVE"
+
+    case "$HOST" in
+        *mingw*)
+            find "$PWD" -name "*-unsigned.exe" | while read -r infile; do
+                infile_base="$(basename "$infile")"
+
+                # Codesigned *-unsigned.exe and output to OUTDIR
+                osslsigncode attach-signature \
+                                 -in "$infile" \
+                                 -out "${OUTDIR}/${infile_base/-unsigned}" \
+                                 -sigin codesignatures/win/"$infile_base".pem
+            done
+            ;;
+        *darwin*)
+            # Apply detached codesignatures to dist/ (in-place)
+            signapple apply dist/Bitcoin-Qt.app codesignatures/osx/dist
+
+            # Make an uncompressed DMG from dist/
+            xorrisofs -D -l -V "$(< osx_volname)" -no-pad -r -dir-mode 0755 \
+                      -o uncompressed.dmg \
+                      dist \
+                      -- -volume_date all_file_dates ="$SOURCE_DATE_EPOCH"
+
+            # Compress uncompressed.dmg and output to OUTDIR
+            ./dmg dmg uncompressed.dmg "${OUTDIR}/${DISTNAME}-osx-signed.dmg"
+            ;;
+        *)
+            exit 1
+            ;;
+    esac
+)  # $DISTSRC
+
+mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR"
-- 
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