Script to prepare first upstreaming PR

Signed-off-by: Yann Dirson <yann.dirson@vates.fr>

devscripts/extract-pr.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+set -e
+
+TARGETBRANCH="$1"
+
+CRATES="
+  plugins/xcp-metrics-plugin-squeezed
+  plugins/xcp-metrics-plugin-common
+  xcp-metrics-common
+"
+
+CRATES_RE=$(echo $CRATES | tr ' ' '|')
+
+CONTENTS="
+  $CRATES
+  Cargo.toml
+  .gitignore
+  .github
+  LICENSE
+"
+
+# new branch for initial commit
+git switch --orphan "$TARGETBRANCH"
+# with specified contents
+git restore -WS --source="main" $CONTENTS
+
+# and only specified crates in workspace
+sed -E -i Cargo.toml -e '/^[^ ]/ p
+\,"('$CRATES_RE')", p
+d'
+git add Cargo.toml
+
+# commit
+<<EOF cat |
+WIP Introduce xcp-metrics-plugin-squeezed plugin for xcp-rrdd
+
+xcp-metrics-plugin-squeezed is meant as a drop-in replacecement for
+rrdp-squeezed, as a first Rust-written brick for XAPI.
+
+EOF
+git commit -F - --author=Teddy