SZEDER Gábor wrote: > On Wed, Oct 24, 2012 at 05:51:06PM -0700, Jonathan Nieder wrote:
>> Proposal: >> >> 1) /usr/lib/git-core/git-sh-prompt >> 2) git-sh-prompt(1) > > Not sure about the "sh" part. The prompt function is very > Bash-specific, it won't work under a plain POSIX shell. That's an interesting point. Here's my logic: The prompt function was originally Bash-specific, but over time it gained support for Zsh as well. If we're lucky, some day it might gain support for mksh. Meanwhile something simple like "git-prompt" would sound too much like a normal git command, I fear. Shell language extensions used: * future standard: local variables * cosmetic: [[ and (( syntax in place of test and $( * cosmetic: for ((n=1; n <= n_stop; n++)) instead of a more explicit while loop * cosmetic: var+=value syntax * optimization: <<< syntax to iterate over lines in a variable instead of, for example, sed + eval * arrays: svn_remote, svn_upstream --- using plain variables would require some escaping. So nothing fundamental, but since this is only useful in shells like Bash that support command substitution in $PS1, it seems reasonable to keep using the extensions until someone wants to use it with a more limited shell. In other words, the interface is still "this is a scriptlet you might source in your Bourne-style shell to get a __git_ps1 function to use in your prompt". The implementation language just happens not to be POSIX shell today. Perhaps it should return early in shells other than bash and zsh to help people keep their .shrc simple. What do you think? > Do other VCSes have similar prompt scripts? Where do they install > theirs? Mercurial has an hg-prompt extension that can be used by running "hg prompt". http://mercurial.selenic.com/wiki/PromptExtension I haven't found one for Subversion. Bazaar has contrib/bash/bzrbashprompt.sh. It doesn't get installed. Thanks, Jonathan -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
