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mirror of https://github.com/gitwatch/gitwatch synced 2024-11-18 21:26:31 +00:00
gitwatch/gitwatch.sh
2012-12-01 00:58:17 +01:00

120 lines
4.4 KiB
Bash
Executable File

#!/bin/bash
#
# gitwatch - watch file or directory and git commit all changes as they happen
#
# Copyright (C) 2012 Patrick Lehner
# with modifications and contributions by:
# - Matthew McGowan
#
#############################################################################
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#############################################################################
#
# Idea and original code taken from http://stackoverflow.com/a/965274
# (but heavily modified by now)
#
# Requires the command 'inotifywait' to be available, which is part of
# the inotify-tools (See https://github.com/rvoicilas/inotify-tools ),
# and (obviously) git
#
REMOTE=""
BRANCH="master"
shelp () { # Print a message about how to use this script
echo "gitwatch - watch file or directory and git commit all changes as they happen"
echo ""
echo "Usage:"
echo "$(basename $0) [-p <remote> [-b <branch>]] <target>"
echo ""
echo "Where <target> is the file or folder which should be watched. The target needs"
echo "to be in a Git repository; or in the case of a folder, it may also be the top"
echo "folder of the repo."
echo "The optional <remote> and <branch> define the arguments used for 'git push',"
echo "which will be automatically done after each commit, if at least the -p option"
echo "is specified."
}
if [ -z $1 ]; then
shelp
exit
fi
while getopts b:hp: option
do
case "${option}" in
b) BRANCH=${OPTARG};;
h) shelp; exit;;
p) REMOTE=${OPTARG};;
esac
done
shift $((OPTIND-1)) # Shift the input arguments, so that the input file (last arg) is $1 in the code below
# Check for both git and inotifywait and generate an error
# if either don't exist or you cannot run them
which git > /dev/null 2>/dev/null
if [ $? -eq 1 ]; then
echo >&2 "Git not found and it is required to use this script."
exit 1;
fi
which inotifywait > /dev/null 2>/dev/null
if [ $? -eq 1 ]; then
echo >&2 "inotifywait not found and it is required to use this script."
exit;
fi
# These two strings are used to construct the commit comment
# They're glued together like "<CCPREPEND>(<DATE&TIME>)<CCAPPEND>"
# If you don't want to add text before and/or after the date/time, simply
# set them to empty strings
CCPREPEND="Scripted auto-commit on change "
CCAPPEND=" by gitwatch.sh"
IN=$(readlink -f "$1")
if [ -d $1 ]; then
TARGETDIR=`echo "$IN" | sed -e "s/\/*$//" ` # dir to CD into before using git commands: trim trailing slash, if any
INCOMMAND="inotifywait --exclude=\"^${TARGETDIR}/.git\" -qqr -e close_write,moved_to,delete $TARGETDIR" # construct inotifywait-commandline
GITADD="." # add "." (CWD) recursively to index
GITINCOMMAND=" -a" # add -a switch to "commit" call just to be sure
elif [ -f $1 ]; then
TARGETDIR=$(dirname $IN) # dir to CD into before using git commands: extract from file name
INCOMMAND="inotifywait -qq -e close_write,moved_to,delete $IN" # construct inotifywait-commandline
GITADD="$IN" # add only the selected file to index
GITINCOMMAND="" # no need to add anything more to "commit" call
else
exit
fi
while true; do
$INCOMMAND # wait for changes
sleep 2 # wait 2 more seconds to give apps time to write out all changes
DATE=`date "+%Y-%m-%d %H:%M:%S"` # construct date-time string
cd $TARGETDIR # CD into right dir
git add $GITADD # add file(s) to index
git commit$GITINCOMMAND -m"${CCPREPEND}(${DATE})${CCAPPEND}" # construct commit message and commit
if [ -n "$REMOTE" ]; then # are we pushing to a remote?
if [ -z "$BRANCH" ]; then # Do we have a branch set to push to ?
git push $REMOTE # Branch not set, push to remote without a branch
else
git push $REMOTE $BRANCH # Branch set, push to the remote with the given branch
fi
fi
done