feat: new bun_build and bun_compile, extend bun_install

internal/bun_dev.bzl

@@ -1,5 +1,6 @@
 """Rule for running JS/TS scripts with Bun in watch mode for development."""
 
+load("//internal:bun_command.bzl", "append_shell_flag", "append_shell_flag_files", "append_shell_flag_values", "append_shell_install_mode", "append_shell_raw_flags", "render_shell_array", "shell_quote")
 load("//internal:workspace.bzl", "create_bun_workspace_info", "render_workspace_setup", "workspace_runfiles")
 
 def _bun_dev_impl(ctx):
@@ -8,23 +9,37 @@ def _bun_dev_impl(ctx):
     entry_point = ctx.file.entry_point
     workspace_info = create_bun_workspace_info(
         ctx,
-        extra_files = ctx.files.data + ctx.files.restart_on + [bun_bin],
+        extra_files = ctx.files.data + ctx.files.restart_on + ctx.files.preload + ctx.files.env_files + [bun_bin],
         primary_file = entry_point,
     )
 
     restart_watch_paths = "\n".join([path.short_path for path in ctx.files.restart_on])
+    launcher_lines = [render_shell_array("bun_args", ["--bun", "run"])]
+    append_shell_install_mode(launcher_lines, "bun_args", ctx.attr.install_mode)
+    append_shell_flag_files(launcher_lines, "bun_args", "--preload", ctx.files.preload)
+    append_shell_flag_files(launcher_lines, "bun_args", "--env-file", ctx.files.env_files)
+    append_shell_flag(launcher_lines, "bun_args", "--no-env-file", ctx.attr.no_env_file)
+    append_shell_flag(launcher_lines, "bun_args", "--smol", ctx.attr.smol)
+    append_shell_flag_values(launcher_lines, "bun_args", "--conditions", ctx.attr.conditions)
+    append_shell_flag(launcher_lines, "bun_args", "--no-clear-screen", ctx.attr.no_clear_screen)
+    append_shell_raw_flags(launcher_lines, "bun_args", ctx.attr.run_flags)
+    launcher_lines.append('bun_args+=("${primary_source}")')
+    for arg in ctx.attr.args:
+        launcher_lines.append("bun_args+=(%s)" % shell_quote(arg))
+
     command = """
+__BUN_ARGS__
 watch_mode="__WATCH_MODE__"
 if [[ "${watch_mode}" == "hot" ]]; then
-    dev_flag="--hot"
+    bun_args+=("--hot")
 else
-    dev_flag="--watch"
+    bun_args+=("--watch")
 fi
 
 if [[ __RESTART_COUNT__ -eq 0 ]]; then
     trap cleanup_runtime_workspace EXIT
     cd "${runtime_exec_dir}"
-    exec "${bun_bin}" --bun "${dev_flag}" run "${primary_source}" "$@"
+    exec "${bun_bin}" "${bun_args[@]}" "$@"
 fi
 
 readarray -t restart_paths <<'EOF_RESTART_PATHS'
@@ -59,7 +74,7 @@ restart_child() {
 
     (
         cd "${runtime_exec_dir}"
-        exec "${bun_bin}" --bun "${dev_flag}" run "${primary_source}" "$@"
+        exec "${bun_bin}" "${bun_args[@]}" "$@"
     ) &
     child_pid=$!
 }
@@ -101,6 +116,9 @@ done
     ).replace(
         "__RESTART_PATHS__",
         restart_watch_paths,
+    ).replace(
+        "__BUN_ARGS__",
+        "\n".join(launcher_lines),
     )
 
     launcher = ctx.actions.declare_file(ctx.label.name)
@@ -151,6 +169,37 @@ watch/HMR plus optional full restarts on selected file changes.
             allow_files = True,
             doc = "Additional runtime files required by the dev process.",
         ),
+        "preload": attr.label_list(
+            allow_files = True,
+            doc = "Modules to preload with `--preload` before running the entry point.",
+        ),
+        "env_files": attr.label_list(
+            allow_files = True,
+            doc = "Additional environment files loaded with `--env-file`.",
+        ),
+        "no_env_file": attr.bool(
+            default = False,
+            doc = "If true, disables Bun's automatic `.env` loading.",
+        ),
+        "smol": attr.bool(
+            default = False,
+            doc = "If true, enables Bun's lower-memory runtime mode.",
+        ),
+        "conditions": attr.string_list(
+            doc = "Custom package resolve conditions passed to Bun.",
+        ),
+        "install_mode": attr.string(
+            default = "disable",
+            values = ["disable", "auto", "fallback", "force"],
+            doc = "Whether Bun may auto-install missing packages in dev mode.",
+        ),
+        "no_clear_screen": attr.bool(
+            default = False,
+            doc = "If true, disables terminal clearing on Bun reloads.",
+        ),
+        "run_flags": attr.string_list(
+            doc = "Additional raw flags forwarded to `bun run` before the entry point.",
+        ),
         "working_dir": attr.string(
             default = "workspace",
             values = ["workspace", "entry_point"],