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1 #!/bin/sh
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2 #
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3 # Enhanced sccs diff utility for use with vc mode.
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4 # This version is more compatible with rcsdiff(1).
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5 #
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6 # !Id: vcdiff,v 1.4 1993/12/03 09:29:18 eggert Exp !
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7 #
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8 # Modified by: vladimir@Eng.Sun.COM on 95-06-07
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9 # * Made sure that file arguments are specifed as s.<filename>.
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10 # * Switched the assignments to $f inside the 3rd and 4th case statements of
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11 # the first for-loop
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12 # * Removed the incorrect initialization of sid1 before the first for-loop.
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13 #
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14
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15 DIFF="diff"
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16 usage="$0: Usage: vcdiff [--brief] [-q] [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..."
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17
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18 PATH=$PATH:/usr/ccs/bin:/usr/sccs # common SCCS hangouts
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19
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20 echo=
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21 sid1= sid2=
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22
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23 for f
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24 do
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25 case $f in
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26 -*)
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27 case $f in
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28 --brief)
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29 DIFF=cmp;;
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30 -q)
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31 echo=:;;
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32 -r?*)
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33 case $sid1 in
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34 -r*)
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35 sid2=$f
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36 ;;
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37 *)
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38 case $sid2 in
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39 ?*) echo "$usage" >&2; exit 2 ;;
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40 esac
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41 sid1=$f
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42 ;;
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43 esac
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44 ;;
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45 *)
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46 options="$options $f"
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47 ;;
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48 esac
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49 shift
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50 ;;
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51 *)
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52 break
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53 ;;
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54 esac
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55 done
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56
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57 case $# in
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58 0)
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59 echo "$usage" >&2
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60 exit 2
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61 esac
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62
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63
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64 rev1= rev2= status=0
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65 trap 'status=2; exit' 1 2 13 15
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66 trap 'rm -f $rev1 $rev2 || status=2; exit $status' 0
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67
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68 for f
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69 do
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70 s=2
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71
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72 # For files under SCCS control, fixup the file name to be the s. filename
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73 if [ -d SCCS ]; then
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74 if [ $f = `echo $f | sed -e 's|SCCS/s.||'` ]; then
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75 f="SCCS/s.$f"
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76 fi
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77 fi
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78
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79 case $f in
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80 s.* | */s.*)
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81 if
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82 rev1=/tmp/geta$$
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83 get -s -p -k $sid1 "$f" > $rev1 &&
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84 case $sid2 in
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85 '')
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86 workfile=`expr " /$f" : '.*/s.\(.*\)'`
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87 ;;
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88 *)
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89 rev2=/tmp/getb$$
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90 get -s -p -k $sid2 "$f" > $rev2
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91 workfile=$rev2
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92 esac
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93 then
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94 $echo $DIFF $options $sid1 $sid2 $workfile >&2
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95 $DIFF $options $rev1 $workfile
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96 s=$?
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97 fi
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98 ;;
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99 *)
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100 echo "$0: $f is not an SCCS file" >&2
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101 esac
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102
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103 if test $status -lt $s
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104 then status=$s
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105 fi
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106 done
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