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Re: Bug in svn merge --show-revs eligible ^/subversion/trunk ^/subversion/branches/1.6.x

From: Paul Burba <ptburba_at_gmail.com>
Date: Thu, 25 Feb 2010 13:23:30 -0500

On Thu, Feb 25, 2010 at 10:42 AM, Kamesh Jayachandran <kamesh_at_collab.net> wrote:

> svn mergeinfo --show-revs eligible
> https://svn.apache.org/repos/asf/subversion/trunk
> https://svn.apache.org/repos/asf/subversion/branches/1.6.x
>
> Above command lists 'r876233' while that has already been merged!
>
> With regards
> Kamesh Jayachandran

As Bert pointed out, the mergeinfo on the 1.6.x branch got pretty well
hosed in r891009 (not 3891009 :-)

C:\SVN\src-branch-1.6.x>svn log -r891009
https://svn.apache.org/repos/asf/subversion/branches/1.6.x
------------------------------------------------------------------------
r891009 | hwright | 2009-12-15 16:45:45 -0500 (Tue, 15 Dec 2009) | 15 lines

Manually merge the 1.6.x-r40452 branch back to 1.6.x:

 * r880525, r880526
   Fix 'svn resolve --accept=theirs-conflict' for targets which live inside
   a subdirectory of the current working directory.
   Justification:
     'svn resolve --accept=theirs-conflict' cannot be used reliably.
   Notes:
     A backport branch is at ^/subversion/branches/1.6.x-r40452.
     1.6.x has an additional bug which does not occur on trunk, requiring
     additional fixes exclusive to 1.6.x. See the log message of r880532
     (which shows what the bug is), and see r880533 (which fixes the bug).
   Votes:
     +1: stsp, pburba, cmpilato

------------------------------------------------------------------------

Hyrum did this "manual merge" because the reintegrate merge of
1.6.x-r40452 wouldn't work:

Dec 16 09:03:22 <pburba> hwright: pong (from yesterday)
Dec 16 09:04:03 <hwright> pburba: I was having a difficulty
reintegrating a branch to 1.6.x, and ended up doing it manually
Dec 16 09:04:18 <pburba> hwright: Which one?
Dec 16 09:04:52 <pburba> nm, I see the log
Dec 16 09:04:53 <hwright> The most recent merge to the branch (1.6.x-r40xxx)
Dec 16 09:05:19 <hwright> I don't know if it was a user error or a
mergeinfo migration error or something else
Dec 16 09:05:34 <hwright> but since I eventually got the merge done, I
don't care *too* much now :P
Dec 16 09:06:12 <pburba> But *I* care :-)
Dec 16 09:06:20 <hwright> heh. I'm glad
Dec 16 09:09:48 <pburba> hwright: Works with 1.6.x for me, you were
using a trunk client?
Dec 16 09:09:58 <hwright> nope
Dec 16 09:10:21 <pburba> Do you recall exactly what went wrong?
Dec 16 09:10:43 <hwright> the error I was getting was something along
the lines of "<some mystical URL> doesn't exist"
Dec 16 09:11:06 <hwright> with the mystical URL being one of the
webdav urls with revision and path in it
Dec 16 09:11:29 <hwright> my guess is that it couldn't find the branch
in a specific revision, and that the problem was relating to
mergeinfo...or something
Dec 16 09:18:45 <pburba> I voted on that branch Monday and had
reintegrated it without problem then too. Hmmmm. You using ra_neon
or ra_serf?
Dec 16 09:20:02 <hwright> neon
Dec 16 09:20:13 <hwright> (that's the ra method du jure for me)
Dec 16 09:24:20 <pburba> Ah ha, I see the error with neon!
Dec 16 09:24:36 <pburba> svn:
'/repos/asf/!svn/bc/875961/subversion/branches/1.6.x' path not found
Dec 16 09:24:48 <hwright> exactly
Dec 16 09:25:06 <hwright> In all honesty, I didn't even think to try serf
Dec 16 09:25:26 <pburba> I wouldn't have either. It's usually the
other way around.
Dec 16 09:25:58 <pburba> Honestly I was taking a complete shot in the
dark on the ra layer...got my lucky guess allotment for the month
Dec 16 09:27:42 * pburba notes the x86-macosx-gnu shared buildbot
tested 1.6.x_at_891009 with ra_neon without issue
Dec 16 09:28:25 <hwright> sure, the code that was merged was good
Dec 16 09:28:35 <hwright> it was just *doing* the merge that was troublesome
Dec 16 09:29:17 <pburba> I meant that the test suite isn't picking up
on this problem in the merge tests
Dec 16 09:30:08 * hwright listens to the cacophony of children crying
in the other room
Dec 16 09:30:22 <pburba> Would have been nice for a simple
reproduction in the test suite to fail is all
Dec 16 09:30:29 <hwright> sure
Dec 16 09:30:45 <pburba> anyway, looking into it right now

The merge didn't work due to an intersection of several problems:

Discussion of busted merge:
http://subversion.tigris.org/issues/show_bug.cgi?id=3547
Issue #3547: http://svn.haxx.se/dev/archive-2009-12/0338.shtml
Self-referential mergeinfo mystery:
http://svn.haxx.se/dev/archive-2009-12/0337.shtml

Anyhow, why he did a manual merge are not important as what caused the
breakage is either fixed or nominated for backport (see * r892050,
892085 in STATUS - which only needs one more vote).

The manual merge itself isn't a problem either, rather the problem is
that when stsp created the branch in r880530, all the mergeinfo
changed:

C:\SVN>svn diff --depth empty
https://svn.apache.org/repos/asf/subversion/branches/1.6.x-r40452@880530
-r880529:880530

Property changes on: .
___________________________________________________________________
Modified: svn:mergeinfo
   Reverse-merged /subversion/branches/in-memory-cache:r869829-871452
   Reverse-merged /subversion/branches/1.6.x-r37622:r877699-877993
   Reverse-merged
/subversion/trunk:r875965,875968,876004,876012,876017,876019,876022,876024,876041-876042,876048,876051,876059,876083,876091,876097,876101,8761
09,876123-876125,876129,876132,876138,876160,876167,876180,876185,876205,876223-876225,876230,876233,876252,876256,876283,876287,876312,876326-876327,876330,876
366,876372,876374,876376,876383,876386,876442,876456-876457,876462-876464,876467,876469,876480,876486,876495-876497,876516-876518,876524,876526,876583,876601,87
6614,876628,876633,876641,876659,876687,876689,876705,876715,876726,876760,876763,876794,876804,876815-876816,876821,876825,876837,876840-876841,876843,876849,8
76857-876858,876873,876890,876897,876905,876908,876925,876931,876934,876948-876949,876953,876987,876993,877011,877028-877029,877038,877119,877127,877146,877157,
877191,877195,877211,877230,877234,877237,877243,877249,877259,877261,877304,877319,877407,877437,877441-877442,877453,877459,877472,877544,877553,877565,877568
,877573,877593,877601,877612,877667,877681,877692,877696,877701,877720,877730,877784,877793,877797,877809,877815,877819,877821,877842,877848,877853,877867,87786
9,877873,877901,877909,877916,877931,877942,877953,877964,877968,877970,877981-877982,878005,878013,878015,878020,878046,878053,878062,878074,878080,878089,8780
91,878093,878095,878127,878129,878131,878142,878173-878176,878240,878242,878255,878272,878279,878296-878297,878303,878335,878338,878353,878364,878367-878368,878
385,878462,878484,878491,878498,878532,878595,878646,878659,878673,878682-878683,878690-878691,878693,878723,878760-878761,878873,878875,878877,878879,878905,87
8915,878924-878925,878946,878949,878955,878960,878970,878981,879001,879033,879056,879074,879076,879081-879082,879105,879126,879148,879170,879198-879199,879201,8
79271,879293,879357,879375-879376,879403,879631,879635-879636,879709-879711,879747,879954,879961,880082,880095,880105,880162,880226
   Reverse-merged /subversion/branches/issue-3334-dirs:r875156-875867
   Reverse-merged /subversion/branches/tree-conflicts:r869500-873154
   Reverse-merged /subversion/branches/file-externals:r871779-873302
   Reverse-merged /subversion/branches/1.6.x-r36178:r877876-877884
   Reverse-merged /subversion/branches/1.6.x-r37627:r877704-877928
   Reverse-merged /subversion/branches/1.6.x-r38572:r878661-878666
   Reverse-merged /subversion/branches/merge-skips-obstructions:r874525-874615
   Reverse-merged
/subversion/branches/issue-3067-deleted-subtrees:r873375-874084
   Reverse-merged
/subversion/branches/dont-save-plaintext-passwords-by-default:r870728-871118
   Reverse-merged /subversion/branches/tc-resolve:r874191-874239
   Reverse-merged /subversion/branches/1.6.x-r39887:r880024-880066
   Reverse-merged /subversion/branches/1.6.x-r37988:r878063-878897
   Reverse-merged /subversion/branches/1.6.x-r38799:r878880-878917
   Reverse-merged /subversion/branches/svnserve-logging:r869828-870893
   Reverse-merged /subversion/branches/reintegrate-improvements:r873853-874164
   Reverse-merged /subversion/branches/issue-2843-dev:r871432-874179
   Reverse-merged /subversion/branches/1.5.x-r30215:r870312
   Reverse-merged /subversion/branches/log-g-performance:r870941-871032
   Reverse-merged /subversion/branches/1.6.x-r38000:r879083-879767
   Reverse-merged /subversion/branches/diff-callbacks3:r870059-870761
   Reverse-merged /subversion/branches/1.6.x-r38222:r878299-878891
   Reverse-merged /subversion/branches/bdb-reverse-deltas:r872050-872529
   Reverse-merged /subversion/branches/double-delete:r870511-872970
   Reverse-merged /subversion/branches/gnome-keyring:r870558-871410
   Reverse-merged /subversion/branches/fsfs-pack:r873717-874575
   Reverse-merged /subversion/branches/1.6.x-issue3443:r878597-879480
   Reverse-merged /subversion/branches/1.6.x-r37953:r879809-880071
   Reverse-merged
/subversion/branches/svn-mergeinfo-enhancements:r870119-870195,870197-870288
   Reverse-merged /subversion/branches/fs-rep-sharing:r870149-873803
   Reverse-merged /subversion/branches/1.6.x-r39557:r879668-879907
   Reverse-merged /subversion/branches/1.6.x-r38927:r879002-879176
   Reverse-merged /subversion/branches/tc-issue-3334:r874697-874773
   Reverse-merged /subversion/branches/1.6.x-r37857:r877932-877936
   Reverse-merged /subversion/branches/tree-conflicts-notify:r873926-874008
   Reverse-merged /subversion/branches/issue-3220-dev:r872210-872226
   Reverse-merged /subversion/branches/svnpatch-diff:r871905,871986
   Reverse-merged /subversion/branches/issue-3148-dev:r875193-875204
   Reverse-merged /subversion/branches/kwallet:r870785-871314
   Reverse-merged /subversion/branches/tc_url_rev:r874351-874483
   Reverse-merged /subversion/branches/1.6.x-dirent-basename:r876130-876262
   Reverse-merged /subversion/branches/1.6.x-no-svn_uri:r876360-876415
   Reverse-merged
/subversion/branches/issue-3000:r871713,871716-871719,871721-871726,871728,871734
   Reverse-merged /subversion/branches/tc-merge-notify:r874017-874062
   Reverse-merged /subversion/branches/1.6.x-UNC-paths:r876471-876545
   Reverse-merged /subversion/branches/1.6.x-r36252:r876328-876788
   Merged /subversion/branches/in-memory-cache:r866174-867797
   Merged /subversion/branches/1.6.x-r37622:r874044-874338
   Merged /subversion/trunk:r872310,872313,872349,872357,872362,872364,872367,872369,872386-872387,872393,872396,872400-872401,872404,872428,872436,872442,87244
6,872454,872468-872470,872474,872477,872483,872505,872512,872525,872530,872550,872568-872570,872575,872578,872597,872601,872628,872632,872657,872671-872672,8726
75,872711,872717,872719,872721,872728,872731,872787,872801-872802,872807-872809,872812,872814,872825,872831,872840-872842,872861-872863,872869,872871,872928,872
946,872959,872973,872978,872986,873004,873032,873034,873050,873060,873071,873105,873108,873139,873149,873160-873161,873166,873170,873182,873185-873186,873188,87
3194,873202-873203,873218,873235,873242,873250,873253,873270,873276,873279,873293-873294,873298,873332,873338,873356,873373-873374,873383,873464,873472,873491,8
73502,873536,873540,873556,873575,873579,873582,873588,873594,873604,873606,873649,873664,873752,873782,873786-873787,873798,873804,873817,873889,873898,873910,
873913,873918,873938,873946,873957,874012,874026,874037,874041,874046,874065,874075,874129,874138,874142,874154,874160,874164,874166,874187,874193,874198,874212
,874214,874218,874246,874254,874261,874276,874287,874298,874309,874313,874315,874326-874327,874350,874358,874360,874365,874391,874398,874407,874419,874425,87443
4,874436,874438,874440,874472,874474,874476,874487,874518-874521,874585,874587,874600,874617,874624,874641-874642,874648,874680,874683,874698,874709,874712-8747
13,874730,874807,874829,874836,874843,874877,874940,874991,875004,875018,875027-875028,875035-875036,875038,875068,875105-875106,875218,875220,875222,875224,875
250,875260,875269-875270,875291,875294,875300,875305,875315,875326,875346,875378,875401,875419,875421,875426-875427,875450,875471,875493,875515,875543-875544,87
5546,875616,875638,875702,875720-875721,875748,875976,875980-875981,876054,876092,876299,876306,876427,876440,876450,876507,876571
   Merged /subversion/branches/issue-3334-dirs:r871501-872212
   Merged /subversion/branches/tree-conflicts:r864636-868290
   Merged /subversion/branches/file-externals:r868124-869647
   Merged /subversion/branches/1.6.x-r36178:r874221-874229
   Merged /subversion/branches/1.6.x-r37627:r874049-874273
   Merged /subversion/branches/1.6.x-r38572:r875006-875011
   Merged /subversion/branches/merge-skips-obstructions:r870870-870960
   Merged /subversion/branches/issue-3067-deleted-subtrees:r869720-870429
   Merged /subversion/branches/dont-save-plaintext-passwords-by-default:r867073-867463
   Merged /subversion/branches/tc-resolve:r870536-870584
   Merged /subversion/branches/1.6.x-r39887:r876369-876411
   Merged /subversion/branches/1.6.x-r37988:r874408-875242
   Merged /subversion/branches/1.6.x-r38799:r875225-875262
   Merged /subversion/branches/svnserve-logging:r866173-867238
   Merged /subversion/branches/reintegrate-improvements:r870198-870509
   Merged /subversion/branches/issue-2843-dev:r867777-870524
   Merged /subversion/branches/1.5.x-r30215:r866657
   Merged /subversion/branches/log-g-performance:r867286-867377
   Merged /subversion/branches/1.6.x-r38000:r875428-876112
   Merged /subversion/branches/diff-callbacks3:r866404-867106
   Merged /subversion/branches/1.6.x-r38222:r874644-875236
   Merged /subversion/branches/bdb-reverse-deltas:r868395-868874
   Merged /subversion/branches/double-delete:r866856-869315
   Merged /subversion/branches/gnome-keyring:r866903-867755
   Merged /subversion/branches/fsfs-pack:r870062-870920
   Merged /subversion/branches/1.6.x-issue3443:r874942-875825
   Merged /subversion/branches/1.6.x-r37953:r876154-876416
   Merged /subversion/branches/svn-mergeinfo-enhancements:r866464-866540,866542-866633
   Merged /subversion/branches/fs-rep-sharing:r865381-869035
   Merged /subversion/branches/1.6.x-r39557:r876013-876252
   Merged /subversion/branches/1.6.x-r38927:r875347-875521
   Merged /subversion/branches/tc-issue-3334:r871042-871118
   Merged /subversion/branches/1.6.x-r37857:r874277-874281
   Merged /subversion/branches/tree-conflicts-notify:r870271-870353
   Merged /subversion/branches/issue-3220-dev:r868555-868571
   Merged /subversion/branches/svnpatch-diff:r868250,868331
   Merged /subversion/branches/issue-3148-dev:r871538-871549
   Merged /subversion/branches/kwallet:r867130-867659
   Merged /subversion/branches/tc_url_rev:r870696-870828
   Merged /subversion/branches/1.6.x-dirent-basename:r872475-872607
   Merged /subversion/branches/1.6.x-no-svn_uri:r872705-872760
   Merged /subversion/branches/issue-3000:r868058,868061-868064,868066-868071,868073,868079
   Merged /subversion/branches/tc-merge-notify:r870362-870407
   Merged /subversion/branches/1.6.x-UNC-paths:r872816-872890
   Merged /subversion/branches/1.6.x-r36252:r872673-873133

Looking into what the #%!@ went wrong here...

Paul
Received on 2010-02-25 19:24:08 CET

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