Add update script

1 files changed, 56 insertions, 0 deletions

diff --git a/update.sh b/update.sh
new file mode 100755
index 000000000000..a34d7e8d02d0
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,56 @@
+#!/usr/bin/bash
+
+# Automatically update to a new version.
+# Set the new version and release numbers in PKGBUILD, then run this script,
+# using a proxy (by setting libcurl env) if necessary.
+
+# For future maintainers:
+# `sed` does not support non-greedy matching, therefore `sd` is used in this script.
+
+set -e
+
+update_sums () {
+  local SUFFIX="$1"
+  local SRC_NAME="source$SUFFIX"
+  local SUM_NAME="sha512sums$SUFFIX"
+
+  if [[ "$2" == "sl" ]]; then
+    local SINGLE_LINE="true"
+  else
+    local SINGLE_LINE="false"
+  fi
+
+  echo "Updating $SUM_NAME:"
+  echo "-----"
+
+  local SUMS=()
+  for SRC_RAW in $(eval echo \${$SRC_NAME[@]}); do
+    local SRC_URL=$(echo $SRC_RAW | sed -E 's/.+::(.+)/\1/g')
+    local SRC_SUM=$(curl -sL "$SRC_URL" | sha512sum | cut -d " " -f 1)
+    SUMS+=("'$SRC_SUM'")
+
+    echo -e "Sum of <$SRC_URL>:\n\t$SRC_SUM"
+  done
+
+  echo "-----"
+  if [[ "$SINGLE_LINE" == "true" ]]; then
+    local SUMS_STR="$SUM_NAME=(${SUMS[@]})"
+  else
+    local SUMS_STR="$SUM_NAME=(\n$(printf "    %s\n" "${SUMS[@]}")\n)"
+  fi
+  echo "String written to PKGBUILD:"
+  echo -e "$SUMS_STR"
+  echo "--------------------"
+
+  sd --flags cs "$SUM_NAME=\(.*?\)" "$SUMS_STR" PKGBUILD
+}
+
+source ./PKGBUILD
+
+update_sums ""
+update_sums "_x86_64" sl
+update_sums "_arm" sl
+update_sums "_aarch64" sl
+
+makepkg --printsrcinfo > .SRCINFO
+echo "Updated PKGBUILD and .SRCINFO successfully."