如何将 kdiff3 设置为 SVN 的合并工具

Question

当 SVN 通知我有关冲突时，我希望能够使用 kdiff3 解决冲突。我如何将其设置为默认工具？

Answer 1

转到 Subversion 配置文件（/etc/subversion/config 或 ~/.subversion/config），然后设置 merge-tool-cmd变量与你最喜欢的工具：

### Set merge-tool-cmd to the command used to invoke your external
### merging tool of choice. Subversion will pass 4 arguments to
### the specified command: base theirs mine merged
# merge-tool-cmd = merge_command

虽然kdiff3有一个问题，它不支持四个普通参数（SVN将四个普通参数传递给kdiff3，它不起作用），所以通常用一个简单的脚本来调用它来翻译参数，例如，“kdiff3caller”：

#!/bin/sh
kdiff3 "$1" "$2" "$3" -o "$4"

这个 kdiff3 问题和解决方案的解释 这里。

Answer 2

我在某个我不记得的地方找到了这个脚本。但作者是迈克尔·布拉德利。

我的答案与 Jon Ander Ortiz Durántez 的答案类似。因此，如果他的答案不起作用，你还有备用方案。我曾经尝试过像他建议的那样，但它总是输出一些参数错误，直到我发现这个脚本解决了所有问题。

创建一个脚本文件并在 ~/.subversion/config 中设置 diff-cmd = /path/to/script.sh

#!/bin/bash

# Return an errorcode of 0 on successful merge, 1 if unresolved conflicts
# remain in the result.  Any other errorcode will be treated as fatal.
# Author: Michael Bradley

#NOTE: all output must be redirected to stderr with "1>&2" as all stdout output is written to the output file

# Must be called by subversion in "~/.subversion/config" file
# Add config : "diff-cmd = /path/to/script/myKdiff3.sh" 

VDIFF3="kdiff3"
DIFF3="diff3" 
DIFF="kdiff3"  

promptUser ()
{
    read answer
    case "${answer}" in

        "M"         ) 
        echo "" 1>&2
        echo "Attempting to merge ${baseFileName} with ${DIFF}" 1>&2
        $VDIFF3 $older $mine $theirs --L1 $labelOlder --L2 $labelMine --L3 $labelTheirs -o $output 1>&2
        bLoop=1
        if [ -f $output ]; then
            if [ -s $output ]; then
                #output succesfully written
                bLoop=0
            fi
        fi
        if [ $bLoop = 0 ]; then
            cat $output
            rm -f $output
            exit 0
        else
            echo "Merge failed, try again" 1>&2
        fi

        ;;

        "m"         ) 
        echo "" 1>&2
        echo "Attempting to auto-merge ${baseFileName}" 1>&2
        diff3 -L $labelMine -L $labelOlder -L $labelTheirs -Em $mine $older $theirs > $output
        if [ $? = 1 ]; then
            #Can't auto merge
            rm -f $output
            $VDIFF3 $older $mine $theirs --L1 $labelOlder --L2 $labelMine --L3 $labelTheirs -o $output --auto 1>&2
            bLoop=1
            if [ -f $output ]; then
                if [ -s $output ]; then
                    #output succesfully written
                    bLoop=0
                fi
            fi
            if [ $bLoop = 0 ]; then
                cat $output
                rm -f $output
                exit 0
            else
                echo "Merge failed, try again" 1>&2
            fi
        else
            #We can automerge, and we already did it
            cat $output
            rm -f $output
            exit 0
        fi
        ;;

        "diff3" | "Diff3" | "DIFF3"  )
        echo "" 1>&2
        echo "Diffing..." 1>&2
        $VDIFF3 $older $mine $theirs --L1 $labelOlder --L2 $labelMine --L3 $labelTheirs 1>&2
        ;;

        "diff" | "Diff" | "DIFF"  )
        echo "" 1>&2
        echo "Diffing..." 1>&2
        $DIFF $mine $theirs -L $labelMine -L $labelTheirs 1>&2
        ;;

        "A" | "a"   ) 
        echo "" 1>&2
        echo "Accepting remote version of file..." 1>&2
        cat ${theirs}
        exit 0
        ;;

        "I" | "i"   ) 
        echo "" 1>&2
        echo "Keeping local modifications..." 1>&2
        cat ${mine}
        exit 0
        ;;

        "R" | "r"   ) 
        echo "" 1>&2
        echo "Reverting to base..." 1>&2
        cat ${older}
        exit 0
        ;;

        "D" | "d"   ) 
        echo "" 1>&2
        echo "Runnig diff3..." 1>&2
        diff3 -L $labelMine -L $labelOlder -L $labelTheirs -Em $mine $older $theirs
        #Exit with return vaule of the diff3 (to write out files if necessary)
        exit $?
        ;;

        "S" | "s"   ) 
        echo "" 1>&2
        echo "Saving for later..." 1>&2
        cat ${mine}
        #Exit with return vaule of 1 to force writting of files
        exit 1
        ;;

        "Fail" | "fail" | "FAIL"   ) 
        echo "" 1>&2
        echo "Failing..." 1>&2 
        exit 2
        ;;

        "H" | "h"   ) 
        echo "" 1>&2
        echo "USAGE OPTIONS:" 1>&2 
        echo "  [A]ccept    Accept $labelTheirs and throw out local modifications" 1>&2
        echo "  [D]efault   Use diff3 to merge files (same behavior as vanilla SVN)" 1>&2
        echo "  [Fail]      Kills the command (not suggested)" 1>&2
        echo "  [H]elp      Print this message" 1>&2
        echo "  [I]gnore    Keep your locally modified version as is" 1>&2
        echo "  [M]erge     Manually merge using ${VDIFF3}" 1>&2
        echo "  [m]erge     Same as "M" but attempts to automerge if possible" 1>&2
        echo "  [R]evert    Revert to base version (${labelOlder})" 1>&2
        echo "  [S]ave      Same as 'I' but writes out rold, rnew, and rmine files to deal with later" 1>&2
        echo "  [diff]      Type 'diff' to diff versions $labelMine and $labelTheirsthe before making a descision" 1>&2
        echo "  [diff3]     Type 'diff3' to diff all three versions before making a descision" 1>&2
        echo "" 1>&2
        ;;

        *   ) 
        echo "'${answer}' is not an option, try again." 1>&2
        ;;
    esac 
}

if [ -z $2 ]
then
    echo ERROR: This script expects to be called by subversion
    exit 1
fi

if [ $2 = "-m" ]
then
    #Setup vars
    labelMine=${4}
    labelOlder=${6}
    labelTheirs=${8}
    mine=${9}
    older=${10}
    theirs=${11}
    output=${9}.svnDiff3TempOutput
    baseFileName=`echo $mine | sed -e "s/.tmp$//"`

    #Prompt user for direction
    while [ 1 ]
    do
        echo "" 1>&2
        echo "${baseFileName} requires merging." 1>&2 
        echo "" 1>&2
        echo "What would you like to do?" 1>&2
        echo "[M]erge [A]ccept [I]gnore [R]evert [D]efault [H]elp" 1>&2 
        promptUser
    done
else
    L="-L"         #Argument option for left label
    R="-L"         #Argument option for right label
    label1=$3       #Left label
    label2=$5       #Right label
    file1=$6        #Left file
    file2=$7        #Right file

    $DIFF $file1 $file2 $L "$label1" $L "$label2" &
    #$DIFF $file1 $file2 &
    #wait for the command to finish
    wait
fi
exit 0

Answer 3

一个更短并且适用于更高版本的 SVN 的解决方案（在 SVN 1.7.7 上测试）：

创建一个脚本 ~/svn-merge-kdiff

#!/bin/bash

# Useful when something fails
LOG=~/svn-merge-kdiff-last-run.log
echo "arguments passed to $0: $@" > $LOG

# Now, don't think you will get the $1, $2, etc... by referencing.
# At first, you have to copy it to an array
for i in $@; do
    args=( ${args[@]} $i )
done

echo "parsed args" >> $LOG
for i in ${args[@]}; do
    echo $i >> $LOG
done

# I keep it in case something changes
if [ "${args[1]}" == "-m" ] && [ "${args[2]}" == "-L" ] && [ "${args[3]}" == ".mine" ];then
    command="kdiff3 --L1 ${args[5]} --base ${args[9]} --L2 ${args[7]} ${args[10]} --L3 ${args[3]} ${args[8]} -o merged"
    $command
    if [[ $? -ne 0 ]]; then
        echo "$command failed" >> $LOG
        exit 1
    fi

    # You have to do this, otherwise after the merge you will see... empty file(?)
    cat merged

    rm merged
    exit 0
fi

exit -1

将其绑定到 ~/.subversion 中的 svn /配置

diff3-cmd = ~/svn-merge-kdiff

Answer 4

yvoyer 的答案中的脚本对我来说非常有用，我正在使用 SVN 1.4。我认为 Jon Ander Ortiz Durántez 之前的回答适用于 SVN 1.5 及更高版本，并且此脚本适用于 1.5 之前的 SVN 版本。看来 --diff-cmd & 发生了变化--diff3-cmd 适用于版本 1.5。比较以下 2 个 SVN 文档中的脚本以查看一些差异：

• svnbook。 red-bean.com/en/1.4/svn.advanced.externaldifftools
  &
• svnbook.red-bean.com/en/1.5< /strong>/svn.advanced.externaldifftools。

Michael Bradley 的脚本非常有用，因为现在如果我在 svn update 期间遇到冲突，它会启动 kdiff3，而不是用“>>”在整个文件中吐槽。 ;>”如果您有复杂的冲突，则很难解决冲突标记。 diff3-cmd 适用于合并和更新。

我将 diff3-cmd = /usr/local/bin/svndiff3 添加到 ~/.subversion/config （或使用 --diff3-cmd因为我编写了自己的脚本来将 svn diff 发送到 sdiff 并由 --diff-cmd 指定。

此脚本发布于 yolinux，这里发布了一个稍微修改过的版本（处理自动合并）Jawspeak。