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svn-fe errors out on revision 59151 of the ASF repository:
fatal: invalid dump: unexpected end of file
The proximate cause is a property with an embedded NUL character.
Previously such anomalies were ignored but commit c9d1c8ba
(2010-12-28) introduced a check strlen(val) == len to avoid reading
uninitialized data when a property list ends early and unfortunately
this test does not distinguish between "foo" followed by EOF and the
string "foo\0bar\0baz".
Fix it by using buffer_read_binary to read to a strbuf and checking
the actual length read. Most consumers of properties still use
C-style strings, so in practice an author or log message with embedded
NULs will be truncated, but a least this way svn-fe won't error out
(fixing the regression).
Reported-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
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* git://github.com/gitster/git:
vcs-svn: Allow change nodes for root of tree (/)
vcs-svn: Implement Prop-delta handling
vcs-svn: Sharpen parsing of property lines
vcs-svn: Split off function for handling of individual properties
vcs-svn: Make source easier to read on small screens
vcs-svn: More dump format sanity checks
vcs-svn: Reject path nodes without Node-action
vcs-svn: Delay read of per-path properties
vcs-svn: Combine repo_replace and repo_modify functions
vcs-svn: Replace = Delete + Add
vcs-svn: handle_node: Handle deletion case early
vcs-svn: Use mark to indicate nodes with included text
vcs-svn: Unclutter handle_node by introducing have_props var
vcs-svn: Eliminate node_ctx.mark global
vcs-svn: Eliminate node_ctx.srcRev global
vcs-svn: Check for errors from open()
vcs-svn: Allow simple v3 dumps (no deltas yet)
Conflicts:
t/t9010-svn-fe.sh
vcs-svn/svndump.c
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If svn is built against one version of SQLite and run against another,
libsvn_subr needlessly errors out in operations that need to make a
commit.
That is clearly not a bug in git but let us consider the ramifications for
the test suite. git-svn uses libsvn directly and is probably broken by
that bug; it is right for git-svn tests to fail. The vcs-svn lib, on the
other hand, does not use libsvn and the test t9010 only uses svn to check
its work. This points to two possible improvements:
- do not disable most vcs-svn tests if svn is missing.
- skip validation rather than failing it when svn fails.
Bring about both by putting the svn invocations into a single test that
builds a repo to compare the test-svn-fe result against. The test will
always pass but only will set the new SVNREPO test prereq if svn succeeds;
and validation using that repo gets an SVNREPO prerequisite so it only
runs with working svn installations.
Works-around: http://bugs.debian.org/608925
Noticed-by: A Large Angry SCM <gitzilla@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
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* 'jn/svn-fe' (early part):
vcs-svn: Error out for v3 dumps
Conflicts:
t/t9010-svn-fe.sh
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Running test t9010 without svn currently errors out for no good reason.
The test uses "svnadmin" without checking if svn is available. This was a
regression introduced by b0ad24b (t9010 (svn-fe): Eliminate dependency on
svn perl bindings, 2010-10-10) when it stopped including ./lib-git-svn.sh
that had the safety.
This should fix it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is not uncommon for a svn repository to include change records for
properties at the top level of the tracked tree:
Node-path:
Node-kind: dir
Node-action: change
Prop-delta: true
Prop-content-length: 43
Content-length: 43
K 10
svn:ignore
V 11
build-area
PROPS-END
Unfortunately a recent svn-fe change (vcs-svn: More dump format sanity
checks, 2010-11-19) causes such nodes to be rejected with the error
message
fatal: invalid dump: path to be modified is missing
The repo_tree module does not keep a dirent for the root of the tree.
Add a block to the dump parser to take care of this case.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The rules for what file is used as delta source for each file are not
documented in dump-load-format.txt. Luckily, the Apache Software
Foundation repository has rich enough examples to figure out most of
the rules:
Node-action: replace implies the empty property set and empty text as
preimage for deltas. Otherwise, if a copyfrom source is given, that
node is the preimage for deltas. Lastly, if none of the above applies
and the node path exists in the current revision, then that version
forms the basis.
[jn: refactored, with tests]
Signed-off-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Node-action: change is not appropriate when switching between file and
directory or adding a new file. Current svn-fe silently accepts such
nodes and the resulting tree has missing files in the "changed when
meant to add" case.
Node-action: add requires some content (text or directory); there is
no such thing as an "intent to add" node in svn dumps. Current svn-fe
accepts such contentless adds but produces an invalid fast-import
stream that refers to nonexistent mark :0 in response.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It would be better to flag such errors and let the import proceed
anyway, but for now it is simpler not to worry about recovery
from such weird cases.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The srcRev variable is only used in handle_node(); its purpose
is to hold the old mode for a path, to only be used if properties
are not being changed. Narrow its scope to make its meaningful
lifetime more obvious.
No functional change intended. Add some tests as a sanity-check
for the simplest case (no renames).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since the dumpfile version 1 days, the Subversion dump format
gained some new fields:
- a unique identifier for the repository (version 2 format)
- whether the text and properties for a node should be
interpreted as deltas
- checksums for a delta's preimage
- SHA-1 sums as alternatives to the existing MD5 checksums for
copy source and the payload (delta).
For now what is relevant to us is the Text-delta and Prop-delta
fields, since not noticing these causes a dump file to be
misinterpreted (see the previous commit).
[jn: with tests]
Signed-off-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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By ignoring the Text-Delta and Prop-Delta node fields, current svn-fe
happily mistakes deltas for full text and instead of cleanly erroring
out, it produces a valid but semantically bogus fast-import stream
when fed a dump file in the modern "svnadmin dump --deltas" format.
Dump file parsers are supposed to ignore header fields they don't
understand (to allow for backward-compatible extensions), but they are
also supposed to check the SVN-fs-dump-format-version header to
prevent misinterpretation of non backward-compatible extensions.
Do so.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Running test t9010 without the SVN:: perl modules currently errors
out, for no good reason. We can make these tests easier to read and
run by not using the perl libsvn bindings and instead duplicating only
the relevant code from lib-git-svn.sh.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The svn-fe test fails on Windows in the “svn export” step because of
the lack of symlink support. With a less ambitious dump, it passes.
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ever since v1.6.3-rc0~101^2~14 (Tests on Windows: $(pwd) must return
Windows-style paths, 2009-03-13), there is a subtle difference between
$(pwd) and $PWD in tests: the former returns Windows-style paths as
might be output by git and the latter Unix-style paths which msys
programs tend to prefer.
In file:// URIs, Unix-style paths are needed. Before: “svn export”
declares it cannot find
file://c:/apps/git/git/t/trash directory/simple-svco
After: “svn export” successfully finds
file:///c/apps/git/git/...
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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svndump parses data that is in SVN dumpfile format produced by
`svnadmin dump` with the help of line_buffer and uses repo_tree and
fast_export to emit a git fast-import stream.
Based roughly on com.hydrografix.svndump 0.92 from the SvnToCCase
project at <http://svn2cc.sarovar.org/>, by Stefan Hegny and
others.
[rr: allow input from files other than stdin]
[jn: with test, more error reporting]
Signed-off-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Jonathan Nieder
Junio C Hamano
David Barr
Ramkumar Ramachandra
Ævar Arnfjörð Bjarmason