annotate hgmerge @ 303:15a9e55e7ea5

Check if $DISPLAY is set before using tkdiff or kdiff3.
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 10 Jun 2005 07:50:20 +0100
parents a69c3b2957d1
children 38fb7d23b78d
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1 #!/bin/bash
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2 #
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3 # hgmerge - default merge helper for Mercurial
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4 #
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5 # This tries to find a way to do three-way merge on the current system.
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6 # The result ought to end up in $1.
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7
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8 set -e # bail out quickly on failure
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9
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10 LOCAL=$1
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11 BASE=$2
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12 OTHER=$3
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13
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14 # Back up our file
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15 cp $LOCAL $LOCAL.orig
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16
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17 # Attempt to do a non-interactive merge
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18 if which merge > /dev/null ; then
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19 if merge $LOCAL $BASE $OTHER 2> /dev/null; then
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20 # success!
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21 exit 0
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22 fi
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23 cp $LOCAL.orig $LOCAL
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24 elif which diff3 > /dev/null ; then
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25 if diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL ; then
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26 # success
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27 exit 0
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28 fi
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29 cp $LOCAL.orig $LOCAL
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30 fi
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31
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32 if [ -n "$DISPLAY" ]; then
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33 # try using kdiff3, which is fairly nice
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34 if which kdiff3 > /dev/null ; then
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35 if kdiff3 --auto $BASE $LOCAL $OTHER -o $LOCAL ; then
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36 exit 0
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37 else
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38 exit 1
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39 fi
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40 fi
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41
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42 # try using tkdiff, which is a bit less sophisticated
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43 if which tkdiff > /dev/null ; then
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44 if tkdiff $LOCAL $OTHER -a $BASE -o $LOCAL ; then
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45 exit 0
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46 else
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47 exit 1
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48 fi
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49 fi
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50 fi
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51
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52 # Attempt to do a merge with $EDITOR
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53 if which merge > /dev/null ; then
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54 echo "conflicts detected in $LOCAL"
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55 merge $LOCAL $BASE $OTHER 2>/dev/null || $EDITOR $LOCAL
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56 exit 0
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57 fi
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58
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59 if which diff3 > /dev/null ; then
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60 echo "conflicts detected in $LOCAL"
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61 diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL || $EDITOR $LOCAL
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62 exit 0
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63 fi
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64
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65 # attempt to manually merge with diff and patch
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66 if which diff > /dev/null ; then
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67 if which patch > /dev/null ; then
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68 T=`mktemp`
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69 diff -u $BASE $OTHER > $T
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70 if patch $LOCAL < $T ; then
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71 exit 0
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72 else
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73 $EDITOR $LOCAL $LOCAL.rej
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74 fi
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75 rm $T
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76 exit 1
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77 fi
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78 fi
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79
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80 echo "hgmerge: unable to find merge, tkdiff, kdiff3, or diff+patch!"
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81 exit 1