# git-status-interactive
# An obnoxiously basic script to open the results of git status in a
# text editor so a user can annotate it, and then turn one-letter user instructions 
# into commands to add/remove files to/from the staging area, ignore files,
# et cetera.
# See the writeup for details at http://modelingwithdata.org/arch/00000031.htm

# Being simple, there is no error-checking or other such frivolity. The 
# script is POSIX-standard and uses only git status, sed, and sh.
# Do send improvements to the author (see above URL).

# --Ben Klemens, December 2009

tempfile=git-istatus.tmp
# man git-status says "all the output lines are prefixed with #." 
# This is not necessarily the case.
# So rm lines not headed with #, add the instructions at the header, 
# and some optional commands at the tail.
git status   \
| sed -e "/^[^#]/d" \
      -e '1i\
# Change the # at the head of the line to one of the following (or leave the # to ignore): \
# a  add currently untracked file\
# r  remove tracked file from repository, leaving it in working dir\
# R  remove tracked file from repository and working dir\
# i  ignore, by adding this file to .git/info/exclude\
# c  check out the old version, throwing out unchecked-in changes\
# e  edit the file\
# ea edit then add; useful for merging\
\
'\
      -e \$a'\
\
\
# To commit after your changes, uncomment the next line. Feel free to add -m "message"\
# git commit'\
    > $tempfile

if [ ! -n "$EDITOR" ] ; then
	EDITOR=pico
	echo "The $EDITOR environment variable seems to not be set. Trying pico."
fi

#User edits here.
$EDITOR $tempfile

#Replace one-line markers with their respective commands.
#Delete blanks and comments so verbose shell execution is cleaner.
#Delete markers like "modified:" or "new file:"
sed -e "/^#/d"\
    -e "/^$/d"\
    -e "s/\(new file\|modified\|deleted\|renamed\)://"\
    -e "s/^a[ \t]\(.*\)/git add \1/" \
    -e "s/^r[ \t]\(.*\)/git rm --cached \1/" \
    -e "s/^c[ \t]\(.*\)/git checkout -- \1/" \
    -e "s/^R[ \t]\(.*\)/git rm \1/" \
    -e "s/^i[ \t]*\(.*\)/echo \"\1\" >> `git rev-parse --git-dir`\/info\/exclude/" \
    -e "s/^e[^a][ \t][ \t]*\(.*\)/\$EDITOR \"\1\"/"  \
    -e "s/^ea[ \t]*\(.*\)/\$EDITOR \"\1\" ;  git add \1/"  \
< $tempfile > $tempfile.do 
rm $tempfile
sh -v $tempfile.do
rm $tempfile.do