1This directory used to contain scripted implementations of builtins 2that have since been rewritten in C. 3 4They have now been removed, but can be retrieved from an older commit 5that removed them from this directory. 6 7They're interesting for their reference value to any aspiring plumbing 8users who want to learn how pieces can be fit together, but in many 9cases have drifted enough from the actual implementations Git uses to 10be instructive. 11 12Other things that can be useful: 13 14 * Some commands such as git-gc wrap other commands, and what they're 15 doing behind the scenes can be seen by running them under 16 GIT_TRACE=1 17 18 * Doing `git log` on paths matching '*--helper.c' will show 19 incremental effort in the direction of moving existing shell 20 scripts to C.