build/ci/Dockerfile: add ibazel
ibazel (a.k.a. bazel-watcher) is a tool which wraps bazel and
automatically rebuilds/restarts targets if source files or
dependencies change.
Change-Id: Ifd5b53619c597c28eaef217067e619430f71d885
Reviewed-on: https://review.monogon.dev/c/monogon/+/199
Reviewed-by: Leopold Schabel <leo@nexantic.com>
diff --git a/build/ci/Dockerfile b/build/ci/Dockerfile
index e319026..d3f3f80 100644
--- a/build/ci/Dockerfile
+++ b/build/ci/Dockerfile
@@ -49,6 +49,17 @@
# https://github.com/bazelbuild/bazel-gazelle/pull/535
ENV GO_REPOSITORY_USE_HOST_CACHE=1
+# Install ibazel (bazel-watcher)
+RUN set -e -x ;\
+ cd /tmp ;\
+ git clone -b v0.15.10 https://github.com/bazelbuild/bazel-watcher ;\
+ cd bazel-watcher ;\
+ [ $(git rev-parse HEAD) == "84cab6f15f64850fb972ea88701e634c8b611301" ] ;\
+ bazel --output_user_root /tmp/bazel-watcher-cache build //ibazel ;\
+ cp bazel-bin/ibazel/linux_amd64_stripped/ibazel /usr/local/bin/ibazel ;\
+ cd /tmp ;\
+ rm -rf bazel-watcher bazel-watcher-cache
+
# --userns=keep-id uses the workdir as $HOME otherwise
RUN mkdir /user
ENV HOME=/user
diff --git a/scripts/bin/ibazel b/scripts/bin/ibazel
new file mode 100755
index 0000000..3c32571
--- /dev/null
+++ b/scripts/bin/ibazel
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# ibazel doesn't take a --output_user_root, set it using the per-user .bazelrc inside the container.
+podman exec -i monogon-dev bash -c "cat - > /user/.bazelrc" <<EOF
+startup --output_user_root ${HOME}/.cache/bazel-monogon
+EOF
+
+exec podman exec -it monogon-dev ibazel "$@"