indent(1) is not idempotent, at least not in the configuration I tested, which makes it practically useless as an editor save hook or an SCM pre-commit hook. O

indent(1) is not idempotent, at least not in the configuration I tested, which makes it practically useless as an editor save hook or an SCM pre-commit hook. Of all the C pretty-printers I tried (about a year ago), clang-format came closest but none were idempotent on the codebase I threw at it. go fmt is idempotent, which means I use it in an editor save hook. I got used to the convenience, so now I miss an automatic formatter when writing other languages.