1 files changed, 63 insertions, 0 deletions
diff --git a/contrib/scripts/git-subtree-reimport.sh b/contrib/scripts/git-subtree-reimport.sh
new file mode 100755
index 00000000..73319044
--- /dev/null
+++ b/contrib/scripts/git-subtree-reimport.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+# In our git repository we vendor in several external projects.
+# We do so via git-subtree.
+#
+# Run this script (without arguments) for re-importing the latest
+# version of those projects.
+#
+# You can also specify the projects to reimport on the command line,
+# ./contrib/scripts/git-subtree-reimport.sh  [ c-list | c-rbtree | c-siphash | c-stdaux | n-acd | n-dhcp4 ... ]
+
+set -e
+
+cd "$(dirname "$(readlink -f "$0")")/../.."
+
+reimport() {
+    local d="$1"
+    local project
+    local branch
+
+    if [[ "$d" = c-* ]] ; then
+        project=c-util
+        branch=main
+    else
+        project=nettools
+        branch=master
+    fi
+
+    CMD=( git subtree pull --prefix "src/$d" "git@github.com:$project/$d.git" "$branch" --squash -m \
+"$d: re-import git-subtree for 'src/$d'
+
+  git subtree pull --prefix src/$d git@github.com:$project/$d.git $branch --squash
+" )
+
+    printf '\n>>>> %s >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n' "$d"
+    printf '>>>'
+    for c in "${CMD[@]}"; do
+        printf ' %q' "$c"
+    done
+    printf '\n'
+
+    "${CMD[@]}" 2>&1
+
+    local REMOTE_COMMIT="$(git rev-parse FETCH_HEAD)"
+
+    echo ">>>>> RESULT:"
+    printf ">>> git diff %s: HEAD:src/%s\n" "$REMOTE_COMMIT" "$d"
+    GIT_PAGER=cat git diff --color=always "$REMOTE_COMMIT:" "HEAD:src/$d"
+}
+
+reimport_all() {
+    local ARGS
+
+    ARGS=( "$@" )
+    if [ "${#ARGS[@]}" = 0 ]; then
+        ARGS=( c-list c-rbtree c-siphash c-stdaux n-acd n-dhcp4 )
+    fi
+    for d in "${ARGS[@]}" ; do
+        reimport "$d"
+    done
+}
+
+reimport_all "$@"