vym: tex/vc@36eb4b8f409e

     1 #! /bin/bash

2 #

     4 user=vym@insilmaril.de

     6 set -e  # abort on errors

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

     8 		   # to nothing

    10 #

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

    12 #

    13 : ${EDITOR:=vi}

    15 #

    16 # Check for -f option ()

    17 #

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

    19     retry_lock=1

    20     shift

    21 fi

    23 #

    24 # Detect the name of the file to edit

    25 #

    26 unset FILE

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

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

    30 	FILE=$1

    31     else

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

    33 	    cd $1

    34 	else

    35 	    FILE=$(package_name $1).changelog

    36 	fi

    37     fi

    38 fi

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

    41     for f in *.changelog; do

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

    43 	    FILE=

    44 	    break

    45 	fi

    46 	FILE=$f

    47     done

    48 fi

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

    51     for f in *.spec; do

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

    53 	    FILE=

    54 	    break

    55 	fi

    56 	FILE=$f

    57     done

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

    59 	FILE=$(package_name $FILE).changelog

    60     fi

    61 fi

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

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

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

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

    67     echo

    68     exit 1

    69 fi

    71 #

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

    73 #

    74 #user=`whoami`

    75 #if [ $user = "uwedr" ]; then

    76 #	user="$user@suse.de"

    77 #fi

    79 COMMENT_FILE=$2

    81 #

    82 # Create the lockfile and temporary file.

    83 #

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

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

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

    87 fi

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

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

    91     exit 1

    92 fi

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

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

    96     exit 1

    97 fi

    99 set -o noclobber

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

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

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

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

   104 	exit 1

   105     fi

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

   107     sleep 1

   108 done

   109 set +o noclobber

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

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

   114 #

   115 # Prepare the working copy and start the editor

   116 #

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

   119     echo "-------------------------------------------------------------------"

   120     echo "$timestamp - $user"

   121     echo

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

   123 	echo "- "

   124     else

   125 	cat $COMMENT_FILE

   126     fi

   127     echo

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

   129     	cat $FILE

   130     fi

   131 } >> $tmpfile \

   132 || exit 1

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

   135     lines=1

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

   137 else

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

   139     CHKSUM_BEFORE=has_changed

   140 fi

   142 $EDITOR +$((3+lines)) $tmpfile

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

   145     exit 1

   146 fi

   147 cat $tmpfile > $FILE

author	insilmaril
	Thu, 25 Feb 2010 11:03:52 +0000
changeset 824	36eb4b8f409e
parent 804	14f2b1b15242
permissions	-rwxr-xr-x