readme.md

Mercurial commit with vim three buffer window

write commit message with vim like TortoiseHg or another GUI style. viewing diffs and logs simultaneously.

commit message	view of diff
view of commit logs

Usage

for mercurial

$ hgcommit [commit-files...]

for git

$ gitcommit [commit-files...]

Sample

Mercurial examples

all files

$ hgcommit

specified files.

$ hgcommit readme.md

Git examples

all files.

$ gitcommit -a

specified files.

$ git add readme.md
$ gitcommit

Another examples

finish to edit.

:x     " save commit comment buffer.
:cq    " quit another buffers. (diff and logs)

cancel to edit.

:cq!   " quit all buffers.

Reference

• bash multi-line variable: https://arstechnica.com/civis/viewtopic.php?p=21091503
• bash arguments loop: https://unix.stackexchange.com/questions/314032/how-to-use-arguments-like-1-2-in-a-for-loop
• vim discard the modified state in temporary buffer: https://stackoverflow.com/questions/17705331/exit-temporary-modified-file-without-saving-and-jump-back-to-my-previous-viewing
• vim move window by command: https://stackoverflow.com/questions/8822237/vim-is-there-a-command-to-switch-windows
• vim split by command: https://technotales.wordpress.com/2010/04/29/vim-splits-a-guide-to-doing-exactly-what-you-want/
• vim script, extract environment varible: https://vi.stackexchange.com/questions/7399/extract-the-result-of-a-shell-command-to-a-variable-in-a-vimrc-file
• vim script, if statement with regex: https://stackoverflow.com/questions/12699229/how-to-use-regular-expressions-on-variables-with-text-in-vimscript
• vim script, insert text by command: https://stackoverflow.com/questions/12699229/how-to-use-regular-expressions-on-variables-with-text-in-vimscript
• vim script, list: http://nanasi.jp/articles/code/variable/list.html
• vim script, arguments: https://stackoverflow.com/questions/10357374/is-it-possible-to-access-vims-command-line-arguments-in-vimscript

bashrc_sample.sh

function hgcommit() {
    _VCSTGT=$(for i in $@; do echo $i; done) \
    HGEDITOR="vim -c HgCommit" hg commit $*
}

function gitcommit() {
    _VCSTGT=$(for i in $@; do echo $i; done) \
    GIT_EDITOR="vim -c GitCommit" git commit $*
}

screenshot.png

ThreePaneCommit.vim

" commit {{{1
function! _vcs_commit(diff, logs)
    let l:seq = []
    for item in systemlist("echo $_VCSTGT")
        if item=~#"^/"
            continue
        endif
        if item=~#"^-"
            continue
        endif
        call add(l:seq, item)
    endfor

    let l:cmd_diff = ':r!'.a:diff.join(l:seq, " ")
    let l:cmd_logs = ':r!'.a:logs.join(l:seq, " ")

    rightbelow vnew
    setlocal buftype=nofile
    setlocal bufhidden=hide
    setlocal noswapfile
    execute(l:cmd_diff)
    1
    call append(line("."), l:cmd_diff)
    wincmd h

    rightbelow new
    setlocal buftype=nofile
    setlocal bufhidden=hide
    setlocal noswapfile
    execute(l:cmd_logs)
    1
    call append(line("."), l:cmd_logs)
    wincmd k
endfunction
command GitCommit call _vcs_commit('git diff --color=never --cached ',
                                 \ 'git log ')
command HgCommit call _vcs_commit('hg diff --color=no ',
                                \ 'hg log --color=no -G -l 30 ')