The message from Linus Torvalds may answer your question: Modify/edit old commit messages Short answer: you can not (if pushed). extract (Linus refers to BitKeeper as BK): Side note, just out of historical interest: in BK you could. And if you’re used to it (like I was) it was really quite practical. I would apply … Read more
Update: Mercurial has added –amend which should be the preferred option now. You can rollback the last commit (but only the last one) with hg rollback and then reapply it. Important: this permanently removes the latest commit (or pull). So if you’ve done a hg update that commit is no longer in your working directory … Read more
It’s not “plumbing”, but it’ll do exactly what you want: $ git log –format=%B -n 1 <commit> If you absolutely need a “plumbing” command (not sure why that’s a requirement), you can use rev-list: $ git rev-list –format=%B –max-count=1 <commit> Although rev-list will also print out the commit sha (on the first line) in addition … Read more
Calling exec < /dev/tty assigns standard input to the keyboard. Works for me in a post-commit git hook: #!/bin/sh echo “[post-commit hook] Commit done!” # Allows us to read user input below, assigns stdin to keyboard exec < /dev/tty while true; do read -p “[post-commit hook] Check for outdated gems? (Y/n) ” yn if [ … Read more
Setting the default editor for Git Pick one: Set core.editor in your Git config: git config –global core.editor “vim” Set the GIT_EDITOR environment variable: export GIT_EDITOR=vim Setting the default editor for all programs Set the standardized VISUAL and EDITOR environment variables*: export VISUAL=vim export EDITOR=”$VISUAL” NOTE: Setting both is not necessarily needed, but some programs … Read more
If you want to set the editor only for Git, do either (you don’t need both): Set core.editor in your Git config: git config –global core.editor “vim” OR Set the GIT_EDITOR environment variable: export GIT_EDITOR=vim If you want to set the editor for Git and also other programs, set the standardized VISUAL and EDITOR environment … Read more