This WIP patch is mostly stealing code from builtin/update-ref.c and implementing the same sort of prefixed command-mode that it supports. I.e. in addition to --batch now supporting: <object> LF It'll support with --stdin-cmd, with and without -z, respectively: object <object> NL object <object> NUL The plus being that we can now implement additional commands: fflush NL fflush NUL That command simply calls fflush(stdout), which could be done as an emergent effect before by feeding the input a "NL". I think this will be useful for other things, e.g. a not-trivial part of "cat-file --batch" time is spent on parsing its argument and seeing if it's a revision, ref etc. So we could e.g. add a command that only accepts a full-length 40 character SHA-1, or switch the --format output mid-request etc. 1. https://lore.kernel.org/git/pull.1124.git.git.1636149400.gitgitgadget@xxxxxxxxx/ requires ee4d43041d ab/cat-file John Cai (2): strvec.c: add a strvec_split_delim() cat-file: add a --stdin-cmd mode builtin/cat-file.c | 128 +++++++++++++++++++++++++++++++++++++++++++- strvec.c | 23 ++++++++ strvec.h | 8 +++ t/t1006-cat-file.sh | 72 +++++++++++++++++++++++++ 4 files changed, 230 insertions(+), 1 deletion(-) base-commit: 00780c9af44409a68481c82f63a97bd18bb2593e Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1191%2Fjohn-cai%2Fjc-cat-file-stdin-cmd-mode-v1 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1191/john-cai/jc-cat-file-stdin-cmd-mode-v1 Pull-Request: https://github.com/git/git/pull/1191 -- gitgitgadget
