bazel: command to prepare development workspace (#1425)

This command symlinks all binaries into the current working directory (or the path specified by the first argument)

* bazel: command to prepare development workspace
* bazel: set malt3 as codeowner

bazel/ci/BUILD.bazel

@@ -47,6 +47,7 @@ sh_library(
     srcs = [
         "lib.bash",
     ],
+    visibility = ["//visibility:public"],
 )
 
 sh_template(

bazel/devbuild/BUILD.bazel

@@ -0,0 +1,21 @@
+load("//bazel/ci:def.bzl", "sh_template")
+
+sh_template(
+    name = "devbuild",
+    data = [
+        "//bazel/ci:base_lib",
+        "//bootstrapper/cmd/bootstrapper",
+        "//cli:cli_oss_host",
+        "//debugd/cmd/cdbg:cdbg_host",
+        "//upgrade-agent/cmd",
+    ],
+    substitutions = {
+        "@@BASE_LIB@@": "$(rootpath //bazel/ci:base_lib)",
+        "@@BOOTSTRAPPER@@": "$(rootpath //bootstrapper/cmd/bootstrapper)",
+        "@@CLI@@": "$(rootpath //cli:cli_oss_host)",
+        "@@CDBG@@": "$(rootpath //debugd/cmd/cdbg:cdbg_host)",
+        "@@UPGRADE_AGENT@@": "$(rootpath //upgrade-agent/cmd)",
+    },
+    template = "prepare_developer_workspace.sh.in",
+    visibility = ["//visibility:public"],
+)

bazel/devbuild/prepare_developer_workspace.sh.in

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+# This script is run from the user's Constellation workspace (BUILD_WORKING_DIRECTORY).
+# It prepares the workspace by symlinking all required binaries into folder.
+
+lib=$(realpath @@BASE_LIB@@) || exit 1
+bootstrapper=$(realpath @@BOOTSTRAPPER@@) || exit 1
+upgrade_agent=$(realpath @@UPGRADE_AGENT@@) || exit 1
+cli=$(realpath @@CLI@@) || exit 1
+cdbg=$(realpath @@CDBG@@) || exit 1
+
+# shellcheck source=../ci/lib.bash
+if ! source "${lib}"; then
+  echo "Error: could not find import"
+  exit 1
+fi
+
+cd "${BUILD_WORKING_DIRECTORY}" || exit 1
+
+if [[ $# -eq 0 ]] ; then
+    workdir="."
+else
+    workdir="$1"
+fi
+
+ln -sf "${bootstrapper}" "${workdir}/bootstrapper"
+ln -sf "${upgrade_agent}" "${workdir}/upgrade-agent"
+ln -sf "${cli}" "${workdir}/constellation"
+ln -sf "${cdbg}" "${workdir}/cdbg"