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9560808f2e
When svn:mergeinfo contains two new parents in a specific order and
one is ancestor of the other, it is possible that git-svn discards the
wrong one. The first test case ("commit made to merged branch is
reachable from the merge") proves this.
The second test case ("merging two branches in one commit is detected
correctly") is just for completeness, since there was no test for
merging two (feature) branches to trunk in one commit.
Signed-off-by: Tuomas Suutari <tuomas.suutari@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
305 lines
6.9 KiB
Bash
305 lines
6.9 KiB
Bash
#!/bin/sh
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#
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# this script sets up a Subversion repository for Makefile in the
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# first ever git merge, as if it were done with svnmerge (SVN 1.5+)
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#
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rm -rf foo.svn foo
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set -e
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mkdir foo.svn
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svnadmin create foo.svn
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svn co file://`pwd`/foo.svn foo
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commit() {
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i=$(( $1 + 1 ))
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shift;
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svn commit -m "(r$i) $*" >/dev/null || exit 1
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echo $i
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}
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say() {
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echo "[1m * $*[0m"
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}
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i=0
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cd foo
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mkdir trunk
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mkdir branches
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mkdir tags
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svn add trunk branches tags
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i=$(commit $i "Setup trunk, branches, and tags")
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git cat-file blob 6683463e:Makefile > trunk/Makefile
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svn add trunk/Makefile
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say "Committing ANCESTOR"
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i=$(commit $i "ancestor")
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svn cp trunk branches/left
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say "Committing BRANCH POINT"
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i=$(commit $i "make left branch")
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svn cp trunk branches/right
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say "Committing other BRANCH POINT"
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i=$(commit $i "make right branch")
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say "Committing LEFT UPDATE"
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git cat-file blob 5873b67e:Makefile > branches/left/Makefile
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i=$(commit $i "left update 1")
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git cat-file blob 75118b13:Makefile > branches/right/Makefile
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say "Committing RIGHT UPDATE"
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pre_right_update_1=$i
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i=$(commit $i "right update 1")
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say "Making more commits on LEFT"
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git cat-file blob ff5ebe39:Makefile > branches/left/Makefile
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i=$(commit $i "left update 2")
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git cat-file blob b5039db6:Makefile > branches/left/Makefile
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i=$(commit $i "left update 3")
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say "Making a LEFT SUB-BRANCH"
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svn cp branches/left branches/left-sub
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sub_left_make=$i
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i=$(commit $i "make left sub-branch")
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say "Making a commit on LEFT SUB-BRANCH"
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echo "crunch" > branches/left-sub/README
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svn add branches/left-sub/README
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i=$(commit $i "left sub-branch update 1")
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say "Merging LEFT to TRUNK"
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svn update
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cd trunk
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svn merge ../branches/left --accept postpone
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git cat-file blob b5039db6:Makefile > Makefile
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svn resolved Makefile
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i=$(commit $i "Merge left to trunk 1")
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cd ..
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say "Making more commits on LEFT and RIGHT"
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echo "touche" > branches/left/zlonk
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svn add branches/left/zlonk
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i=$(commit $i "left update 4")
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echo "thwacke" > branches/right/bang
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svn add branches/right/bang
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i=$(commit $i "right update 2")
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say "Squash merge of RIGHT tip 2 commits onto TRUNK"
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svn update
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cd trunk
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svn merge -r$pre_right_update_1:$i ../branches/right
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i=$(commit $i "Cherry-pick right 2 commits to trunk")
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cd ..
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say "Merging RIGHT to TRUNK"
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svn update
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cd trunk
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svn merge ../branches/right --accept postpone
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git cat-file blob b51ad431:Makefile > Makefile
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svn resolved Makefile
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i=$(commit $i "Merge right to trunk 1")
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cd ..
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say "Making more commits on RIGHT and TRUNK"
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echo "whamm" > branches/right/urkkk
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svn add branches/right/urkkk
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i=$(commit $i "right update 3")
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echo "pow" > trunk/vronk
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svn add trunk/vronk
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i=$(commit $i "trunk update 1")
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say "Merging RIGHT to LEFT SUB-BRANCH"
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svn update
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cd branches/left-sub
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svn merge ../right --accept postpone
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git cat-file blob b51ad431:Makefile > Makefile
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svn resolved Makefile
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i=$(commit $i "Merge right to left sub-branch")
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cd ../..
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say "Making more commits on LEFT SUB-BRANCH and LEFT"
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echo "zowie" > branches/left-sub/wham_eth
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svn add branches/left-sub/wham_eth
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pre_sub_left_update_2=$i
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i=$(commit $i "left sub-branch update 2")
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sub_left_update_2=$i
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echo "eee_yow" > branches/left/glurpp
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svn add branches/left/glurpp
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i=$(commit $i "left update 5")
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say "Cherry pick LEFT SUB-BRANCH commit to LEFT"
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svn update
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cd branches/left
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svn merge -r$pre_sub_left_update_2:$sub_left_update_2 ../left-sub
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i=$(commit $i "Cherry-pick left sub-branch commit to left")
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cd ../..
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say "Merging LEFT SUB-BRANCH back to LEFT"
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svn update
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cd branches/left
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# it's only a merge because the previous merge cherry-picked the top commit
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svn merge -r$sub_left_make:$sub_left_update_2 ../left-sub --accept postpone
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i=$(commit $i "Merge left sub-branch to left")
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cd ../..
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say "Merging EVERYTHING to TRUNK"
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svn update
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cd trunk
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svn merge ../branches/left --accept postpone
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svn resolved bang
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i=$(commit $i "Merge left to trunk 2")
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# this merge, svn happily updates the mergeinfo, but there is actually
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# nothing to merge. git-svn will not make a meaningless merge commit.
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svn merge ../branches/right --accept postpone
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i=$(commit $i "non-merge right to trunk 2")
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cd ..
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say "Branching b1 from trunk"
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svn update
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svn cp trunk branches/b1
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i=$(commit $i "make b1 branch from trunk")
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say "Branching b2 from trunk"
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svn update
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svn cp trunk branches/b2
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i=$(commit $i "make b2 branch from trunk")
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say "Make a commit to b2"
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svn update
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cd branches/b2
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echo "b2" > b2file
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svn add b2file
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i=$(commit $i "b2 update 1")
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cd ../..
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say "Make a commit to b1"
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svn update
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cd branches/b1
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echo "b1" > b1file
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svn add b1file
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i=$(commit $i "b1 update 1")
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cd ../..
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say "Merge b1 to trunk"
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svn update
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cd trunk
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svn merge ../branches/b1/ --accept postpone
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i=$(commit $i "Merge b1 to trunk")
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cd ..
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say "Make a commit to trunk before merging trunk to b2"
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svn update
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cd trunk
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echo "trunk" > trunkfile
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svn add trunkfile
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i=$(commit $i "trunk commit before merging trunk to b2")
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cd ..
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say "Merge trunk to b2"
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svn update
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cd branches/b2
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svn merge ../../trunk/ --accept postpone
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i=$(commit $i "Merge trunk to b2")
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cd ../..
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say "Merge b2 to trunk"
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svn update
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cd trunk
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svn merge ../branches/b2/ --accept postpone
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svn resolved b1file
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svn resolved trunkfile
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i=$(commit $i "Merge b2 to trunk")
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cd ..
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say "Creating f1 from trunk with a new file"
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svn update
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svn cp trunk branches/f1
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cd branches/f1
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echo "f1" > f1file
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svn add f1file
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cd ../..
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i=$(commit $i "make f1 branch from trunk with a new file")
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say "Creating f2 from trunk with a new file"
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svn update
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svn cp trunk branches/f2
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cd branches/f2
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echo "f2" > f2file
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svn add f2file
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cd ../..
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i=$(commit $i "make f2 branch from trunk with a new file")
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say "Merge f1 and f2 to trunk in one go"
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svn update
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cd trunk
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svn merge ../branches/f1/ --accept postpone
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svn merge ../branches/f2/ --accept postpone
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i=$(commit $i "Merge f1 and f2 to trunk")
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cd ..
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say "Adding subdirectory to LEFT"
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svn update
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cd branches/left
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mkdir subdir
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echo "Yeehaw" > subdir/cowboy
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svn add subdir
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i=$(commit $i "add subdirectory to left branch")
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cd ../../
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say "Merging LEFT to TRUNK"
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svn update
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cd trunk
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svn merge ../branches/left --accept postpone
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i=$(commit $i "merge left to trunk")
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cd ..
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say "Make PARTIAL branch"
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svn update
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svn cp trunk/subdir branches/partial
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i=$(commit $i "make partial branch")
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say "Make a commit to PARTIAL"
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svn update
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cd branches/partial
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echo "racecar" > palindromes
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svn add palindromes
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i=$(commit $i "partial update")
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cd ../../
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say "Merge PARTIAL to TRUNK"
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svn update
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cd trunk/subdir
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svn merge ../../branches/partial --accept postpone
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i=$(commit $i "merge partial to trunk")
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cd ../../
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say "Tagging trunk"
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svn update
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svn cp trunk tags/v1.0
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i=$(commit $i "tagging v1.0")
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say "Branching BUGFIX from v1.0"
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svn update
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svn cp tags/v1.0 branches/bugfix
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i=$(commit $i "make bugfix branch from tag")
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say "Make a commit to BUGFIX"
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svn update
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cd branches/bugfix/
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echo "kayak" >> subdir/palindromes
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i=$(commit $i "commit to bugfix")
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cd ../../
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say "Merge BUGFIX to TRUNK"
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svn update
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cd trunk
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svn merge ../branches/bugfix/ --accept postpone
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i=$(commit $i "Merge BUGFIX to TRUNK")
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cd ..
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cd ..
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svnadmin dump foo.svn > svn-mergeinfo.dump
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rm -rf foo foo.svn
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