> ## Documentation Index > Fetch the complete documentation index at: https://site.aspect.build/llms.txt > Use this file to discover all available pages before exploring further. # Bazel r c `function` **BazelRC.announce**

        
          def BazelRC.announce(
          \*,
          command: str,
          ansi: bool = False,
          max\_width: int = 120
          ) -> str

Return a human-readable summary of all options loaded for `command`. Options are grouped by source file and wrapped at `max_width` columns (default 120). Pass `ansi = True` to enable bold/dim ANSI styling on headers and section names. Useful for debugging which flags were picked up and from which rc file: ```python theme={null} print(rc.announce(command = "build")) print(rc.announce(command = "build", ansi = True)) ``` `function` **BazelRC.expand**

        
          def BazelRC.expand(
          \*,
          command: str
          ) -> list

Expand all `--config=` flags for `command` and return the fully-resolved list. Each item is either a plain `str` (unconditional) or a `(str, str)` tuple `(flag, version_condition)` for version-gated flags. This format is directly compatible with `ctx.bazel.build(flags=...)`. `function` **BazelRC.expand\_all**

        
          def BazelRC.expand\_all(
          \*,
          command: str
          ) -> (list, list)

Expand all `--config=` flags for `command` and split results by origin section. Options from `common` sections cannot be passed directly on the Bazel CLI — they must be injected via startup flags so Bazel applies the correct silent-ignore semantics. All other options (`always`, `build`, etc.) are safe to pass as regular command flags. Returns a `(startup_flags, flags)` tuple: * `startup_flags`: `["--default_override=0:common=", ...]` * `flags`: direct command flags (same `str | (str, str)` format as `expand()`) # Example ```python theme={null} startup_flags, flags = rc.expand_all(command = "build") ctx.bazel.build("//...", flags = flags, startup_flags = startup_flags) ``` `function` **BazelRC.options\_for**

        
          def BazelRC.options\_for(
          \*,
          command: str
          ) -> list

Return all options applicable to `command` without expanding `--config=` flags. Each item is either a plain `str` (unconditional) or a `(str, str)` tuple `(flag, version_condition)` for version-gated flags. `function` **BazelRC.sources**

        
          def BazelRC.sources() -> list

Return the list of source file paths that were loaded.