#!/bin/bash

#

# git_commitRepoChanges.sh -- This function commits all the changes

# found in files under version control.

#

# Copyright (C) 2009-2013 The CentOS Project

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function git_commitRepoChanges {

    local -a FILES

    local -a INFO

    local -a FILESNUM

    local COUNT=0

    local STATUSOUT=''

    local PREDICATE=''

    local CHNGTOTAL=0

    local LOCATION=$(cli_checkRepoDirSource "$1")

    # Verify source location absolute path. It should point to

    # existent files or directories. They don't need to be under

    # version control.

    cli_checkFiles ${LOCATION} -e

    # Print action message.

    cli_printMessage "`gettext "Checking changes in the working copy"`" --as-banner-line

    # Build list of files that have received changes in its version

    # status.  Be sure to keep output files off from this list.

    # Remember, output files are not version inside the working copy,

    # so they are not considered for evaluation here. But take care,

    # sometimes output files are in the same format of source files,

    # so we need to differentiate them using their locations.

    STATUSOUT="$(${COMMAND} status --porcelain ${LOCATION})"

    # Process location based on its path information. Both

    # by-extension and by-location exclusions are no longer needed

    # here.  They are already set in the `.git/info/exclude' file.

    # Define path to files considered recent modifications from

    # working copy up to local repository.

    FILES[0]=$(echo "$STATUSOUT" | egrep "^.M"  | sed -r "s,^.+${TCAR_WORKDIR}/,,")

    FILES[1]=$(echo "$STATUSOUT" | egrep "^.\?" | sed -r "s,^.+${TCAR_WORKDIR}/,,")

    FILES[2]=$(echo "$STATUSOUT" | egrep "^.D"  | sed -r "s,^.+${TCAR_WORKDIR}/,,")

    FILES[3]=$(echo "$STATUSOUT" | egrep "^.A"  | sed -r "s,^.+${TCAR_WORKDIR}/,,")

    # Define description of files considered recent modifications from

    # working copy up to local repository.

    INFO[0]="`gettext "Modified"`"

    INFO[1]="`gettext "Unversioned"`"

    INFO[2]="`gettext "Deleted"`"

    INFO[3]="`gettext "Added"`"

    while [[ $COUNT -ne ${#FILES[*]} ]];do

        # Define total number of files. Avoid counting empty line.

        if [[ "${FILES[$COUNT]}" == '' ]];then

            FILESNUM[$COUNT]=0

        else

            FILESNUM[$COUNT]=$(echo "${FILES[$COUNT]}" | wc -l)

        fi

        # Calculate total amount of changes.

        CHNGTOTAL=$(($CHNGTOTAL + ${FILESNUM[$COUNT]}))

        # Build report predicate. Use report predicate to show any

        # information specific to the number of files found. For

        # example, you can use this section to show warning messages,

        # notes, and so on. By default we use the word `file' or

        # `files' at ngettext's consideration followed by change

        # direction.

        PREDICATE[$COUNT]=`ngettext "file in the working copy" \

            "files in the working copy" $((${FILESNUM[$COUNT]} + 1))`

        # Output report line.

        cli_printMessage "${INFO[$COUNT]}: ${FILESNUM[$COUNT]} ${PREDICATE[$COUNT]}" --as-stdout-line

        # Increase counter.

        COUNT=$(($COUNT + 1))

    done

    # When files have changed in the target location, show which these

    # files are and request user to see such changes and then, for

    # committing them up to the local repository.

    if [[ ${FILESNUM[0]} -gt 0 ]];then

        # Print action message.

        cli_printMessage "`gettext "Do you want to see changes now?"`" --as-yesornorequest-line

        # Show differences.

        ${COMMAND} diff ${LOCATION} | less

        # Print action message.

        cli_printMessage "`gettext "Do you want to commit changes now?"`" --as-yesornorequest-line

        # Add changes for next commit.

        ${COMMAND} add ${LOCATION}

        # Commit changes up to local repository.

        ${COMMAND} commit ${LOCATION}

    fi

    # When there are unversioned files in the target location, show

    # which these files are and request user to add such files into

    # the working copy.

    if [[ ${FILESNUM[1]} -gt 0 ]];then

        # Print action message.

        cli_printMessage '-' --as-separator-line

        cli_printMessage "`gettext "Do you want to add unversioned files now?"`" --as-yesornorequest-line

        # Add unversioned files to be considered in the next commit.

        for FILE in ${FILES[1]};do

            ${COMMAND} add "${TCAR_WORKDIR}/$FILE"

        done

        # Print action message.

        cli_printMessage "`gettext "Do you want to commit changes now?"`" --as-yesornorequest-line

        # Commit changes up to local repository.

        ${COMMAND} commit ${LOCATION}

    fi

    # When there are added files in the target location, show which

    # these files are and request user to commit them up to local

    # repository.

    if [[ ${FILESNUM[3]} -gt 0 ]];then

        cli_printMessage '-' --as-separator-line

        cli_printMessage "`gettext "Do you want to commit changes now?"`" --as-yesornorequest-line

        ${COMMAND} commit ${LOCATION}

    fi

}