fix(issue-30): reproducer container

have the image for better testing, user reports it is with copy.

bitbucket-pipelines.yml

@@ -393,12 +393,12 @@ pipelines:
     git-runner:
       - step:
           name: "git runner"
-          image: debian:bookworm-slim
+          image: ktomk/pipelines:debian-git
           script:
-            - git --version || (apt-get update && apt-get install -y git)
             - git --version
             - stat "$PWD"
             - id -a
+            - ls -lah /app | head -n 12
             - git rev-parse --show-toplevel
             - git config --global --unset-all safe.directory
             - git rev-parse --show-toplevel || true

lib/container/debian-git.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# this file is part of pipelines
+#
+# pipelines:debian-git docker image
+#
+# usage: ./debian-git.sh [<docker-cmd>]
+#
+#   <docker-cmd>    "docker" by default
+#
+# requirements: docker (or equivalent)
+#
+# rationale:
+#
+#   bitbucket pipelines has a problem deploying files that git
+# unveils as a dubious ownership and a user requested it.
+#
+# <https://github.com/ktomk/pipelines/issues/30#issuecomment-2395134681>
+#
+set -euo pipefail
+IFS=$' \n\t'
+
+docker_cmd="${1-docker}"
+from="docker.io/debian:bookworm-slim"
+tag="docker.io/ktomk/pipelines:debian-git"
+
+echo "build '${tag}' from '${from}' with ${docker_cmd}..."
+
+<<'DOCKERFILE' "${docker_cmd}" build --build-arg FROM="${from}" -t "${tag}" - | sed -e 's/^/  build: /'
+ARG FROM
+FROM $FROM
+RUN apt-get update && \
+      apt-get install -qy git
+DOCKERFILE
+
+echo "test '${tag}' ..."
+
+# shellcheck disable=SC2016
+"${docker_cmd}" run --rm "${tag}" git --version
+
+echo "push '${tag}' ..."
+
+"${docker_cmd}" push "${tag}" | sed -e 's/^/  push.: /'
+
+echo "done."