annotate hgeditor @ 19290:f21f4a1b6c24

log: move log file walk to its own function This moves the logic that determines which changesets to process during a 'hg log foo.txt' command. Putting it in its own function allows extensions to modify how the file log is traversed. For instance, the current implementation uses filelog revs heavily. Other implementations may not have filelog revs available. The function throws an exception if the traversal is not possible via the filelog, so the parent function can do things the slow way if necessary (by walking the entire commit history). Aside from the exception throwing, no logic is changed.
author Durham Goode <durham@fb.com>
date Thu, 30 May 2013 19:25:55 -0700
parents 2b440bb8a66b
children 1aee2ab0f902
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/sh
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2 #
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3 # This is an example of using HGEDITOR to create of diff to review the
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4 # changes while commiting.
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5
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Radoslaw "AstralStorm" Szkodzinski <astralstorm@gorzow.mm.pl>
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6 # If you want to pass your favourite editor some other parameters
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7 # only for Mercurial, modify this:
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8 case "${EDITOR}" in
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9 "")
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10 EDITOR="vi"
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11 ;;
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12 emacs)
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13 EDITOR="$EDITOR -nw"
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14 ;;
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15 gvim|vim)
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16 EDITOR="$EDITOR -f -o"
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17 ;;
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18 esac
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19
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20
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21 HGTMP=""
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22 cleanup_exit() {
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23 rm -rf "$HGTMP"
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24 }
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25
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26 # Remove temporary files even if we get interrupted
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27 trap "cleanup_exit" 0 # normal exit
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28 trap "exit 255" HUP INT QUIT ABRT TERM
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29
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30 HGTMP=$(mktemp -d ${TMPDIR-/tmp}/hgeditor.XXXXXX)
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31 [ x$HGTMP != x -a -d $HGTMP ] || {
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32 echo "Could not create temporary directory! Exiting." 1>&2
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33 exit 1
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34 }
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35
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36 (
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37 grep '^HG: changed' "$1" | cut -b 13- | while read changed; do
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38 "$HG" diff "$changed" >> "$HGTMP/diff"
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39 done
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40 )
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41
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42 cat "$1" > "$HGTMP/msg"
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43
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44 MD5=$(which md5sum 2>/dev/null) || \
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45 MD5=$(which md5 2>/dev/null)
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46 [ -x "${MD5}" ] && CHECKSUM=`${MD5} "$HGTMP/msg"`
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47 if [ -s "$HGTMP/diff" ]; then
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48 $EDITOR "$HGTMP/msg" "$HGTMP/diff" || exit $?
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49 else
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50 $EDITOR "$HGTMP/msg" || exit $?
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51 fi
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52 [ -x "${MD5}" ] && (echo "$CHECKSUM" | ${MD5} -c >/dev/null 2>&1 && exit 13)
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53
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54 mv "$HGTMP/msg" "$1"
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55
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56 exit $?