[ci] Add a script for generating the release.
This script factors out logic currently locked up in azure-pipelines,
cleans it up, and makes it somewhat more robust, so that local users can
prepare a release themsleves.
Signed-off-by: Miguel Young de la Sota <mcyoung@google.com>
diff --git a/util/make_distribution.sh b/util/make_distribution.sh
new file mode 100755
index 0000000..662501f
--- /dev/null
+++ b/util/make_distribution.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+set -e
+
+# make_distribution.sh takes distribution artifacts in $BIN_DIR and packs them
+# into a compressed TAR archive, which is deposited into $BIN_DIR. In
+# particular, this script should be run after make_build_bin.sh.
+#
+# The actual artifacts exported are described by the $DIST_ARTIFACTS variable
+# below.
+
+. util/build_consts.sh
+
+readonly OT_VERSION="$(git describe --always)"
+echo "\$OT_VERSION = $OT_VERSION" >&2
+
+# $DIST_ARTIFACTS is a list of |find| globs to be copied out of
+# $BIN_DIR and into the OpenTitan distribution archive.
+#
+# These globs are relative to $BIN_DIR.
+readonly DIST_ARTIFACTS=(
+ 'sw/device/*.elf'
+ 'sw/device/*.bin'
+ 'sw/device/*.vmem'
+ 'sw/host/spiflash/spiflash'
+ 'hw/top_earlgrey/Vtop_earlgrey_verilator'
+ 'hw/top_earlgrey/lowrisc_systems_top_earlgrey_nexysvideo_0.1.bit'
+)
+
+DIST_DIR="$OBJ_DIR/opentitan-$OT_VERSION"
+mkdir -p "$DIST_DIR"
+
+cp ci/README.snapshot "$DIST_DIR"
+cp LICENSE "$DIST_DIR"
+
+for pat in "${DIST_ARTIFACTS[@]}"; do
+ echo "Searching for $pat." >&2
+ for file in $(find "$BIN_DIR" -type f -path "$BIN_DIR/$pat"); do
+ relative_file="${file#"$BIN_DIR/"}"
+ echo "Copying \$BIN_DIR/$relative_file." >&2
+
+ destination="$DIST_DIR/$(dirname "$relative_file")"
+ mkdir -p "$destination"
+ mv "$file" "$destination"
+ done
+done
+
+cd "$OBJ_DIR"
+tar -cJf "$BIN_DIR/opentitan-$OT_VERSION.tar.xz" "opentitan-$OT_VERSION"
