vym: tex/vc@6cbf3c9cbd21

     1 #! /bin/bash

2 #

     4 set -e  # abort on errors

     5 shopt -s nullglob  # file globs that don't match expand

     6 		   # to nothing

8 #

     9 # Check if $EDITOR is set, otherwise set to "vi".

    10 #

    11 : ${EDITOR:=vi}

    13 #

    14 # Check for -f option ()

    15 #

    16 if [ "$1" = -f ]; then

    17     retry_lock=1

    18     shift

    19 fi

    21 #

    22 # Detect the name of the file to edit

    23 #

    24 unset FILE

    26 if [ -n "$1" ]; then

    27     if [ -f "$1" ]; then

    28 	FILE=$1

    29     else

    30 	if [ -d "$1" ]; then

    31 	    cd $1

    32 	else

    33 	    FILE=$(package_name $1).changelog

    34 	fi

    35     fi

    36 fi

    38 if [ -z "$FILE" ]; then

    39     for f in *.changelog; do

    40 	if [ -n "$FILE" ]; then

    41 	    FILE=

    42 	    break

    43 	fi

    44 	FILE=$f

    45     done

    46 fi

    48 if [ -z "$FILE" ]; then

    49     for f in *.spec; do

    50 	if [ -n "$FILE" ]; then

    51 	    FILE=

    52 	    break

    53 	fi

    54 	FILE=$f

    55     done

    56     if [ -n "$FILE" ]; then

    57 	FILE=$(package_name $FILE).changelog

    58     fi

    59 fi

    61 if [ -z "$FILE" ]; then

    62     echo "usage: ${0##*/} [filename[.changelog]|path [file_with_comment]]"

    63     echo "If no <filename> is given, exactly one *.changelog or"

    64     echo "*.spec file has to be in the cwd or in <path>."

    65     echo

    66     exit 1

    67 fi

    69 #

    70 # Add domain to username (if it's me ;-)

    71 #

    72 user=`whoami`

    73 if [ $user = "uwedr" ]; then

    74 	user="$user@suse.de"

    75 fi

    77 COMMENT_FILE=$2

    79 #

    80 # Create the lockfile and temporary file.

    81 #

    82 lockfile=.${FILE##*/}.lock

    83 if [ "${FILE/\//}" != "$FILE" ]; then

    84     lockfile=${FILE%/*}/.$lockfile

    85 fi

    87 if [ ! -w "$(dirname "$FILE")" ]; then

    88     echo "Write access to directory $(dirname "$FILE") required" >&2

    89     exit 1

    90 fi

    92 if [ -e "$FILE" -a ! -w "$FILE" ]; then

    93     echo "Write access to file $FILE required" >&2

    94     exit 1

    95 fi

    97 set -o noclobber

    98 while ! echo $$@$(hostname -f) 2> /dev/null > $lockfile; do

    99     if [ -z "$retry_lock" ]; then

   100 	echo "$lockfile: Lock by process $(cat $lockfile)" >&2

   101 	echo "Please remove stale lockfiles manually" >&2

   102 	exit 1

   103     fi

   104     echo "$lockfile: Waiting for process $(cat $lockfile) to release lock" >&2

   105     sleep 1

   106 done

   107 set +o noclobber

   109 tmpfile=$(mktemp /tmp/${0##*/}.XXXXXX)

   110 trap "rm -f $lockfile $tmpfile" EXIT

   112 #

   113 # Prepare the working copy and start the editor

   114 #

   116 {   timestamp=$(LC_ALL=POSIX TZ=Europe/Berlin date)

   117     echo "-------------------------------------------------------------------"

   118     echo "$timestamp - $user"

   119     echo

   120     if [ -z "$COMMENT_FILE" ]; then

   121 	echo "- "

   122     else

   123 	cat $COMMENT_FILE

   124     fi

   125     echo

   126     if [ -f "$FILE" ]; then

   127     	cat $FILE

   128     fi

   129 } >> $tmpfile \

   130 || exit 1

   132 if [ -z "$COMMENT_FILE" ]; then

   133     lines=1

   134     CHKSUM_BEFORE=$(md5sum $tmpfile | awk '{print $1}')

   135 else

   136     lines=$(wc -l $COMMENT_FILE | awk '{print $1}')

   137     CHKSUM_BEFORE=has_changed

   138 fi

   140 $EDITOR +$((3+lines)) $tmpfile

   142 if [ "$CHKSUM_BEFORE" = "$(md5sum $tmpfile | awk '{print $1}')" ]; then

   143     exit 1

   144 fi

   145 cat $tmpfile > $FILE

author	insilmaril
	Wed, 22 Jul 2009 11:48:23 +0000
changeset 781	6cbf3c9cbd21
parent 612	316e9237794c
child 804	14f2b1b15242
permissions	-rwxr-xr-x