kernel/git - git - PowerEL Git System

Author	SHA1	Message	Date
David Barr	7a75e661c5	vcs-svn: implement text-delta handling Handle input in Subversion's dumpfile format, version 3. This is the format produced by "svnrdump dump" and "svnadmin dump --deltas", and the main difference between v3 dumpfiles and the dumpfiles already handled is that these can include nodes whose properties and text are expressed relative to some other node. To handle such nodes, we find which node the text and properties are based on, handle its property changes, use the cat-blob command to request the basis blob from the fast-import backend, use the svndiff0_apply() helper to apply the text delta on the fly, writing output to a temporary file, and then measure that postimage file's length and write its content to the fast-import stream. The temporary postimage file is shared between delta-using nodes to avoid some file system overhead. The svn-fe interface needs to be more complicated to accomodate the backward flow of information from the fast-import backend to svn-fe. The backflow fd is not needed when parsing streams without deltas, though, so existing scripts using svn-fe on v2 dumps should continue to work. NEEDSWORK: generalize interface so caller sets the backflow fd, close temporary file before exiting Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>	14 years ago
David Barr	41529bbce4	vcs-svn: set up channel to read fast-import cat-blob response Set up some plumbing: teach the svndump lib to pass a file descriptor number to the fast_export lib, representing where cat-blob/ls responses can be read from, and add a get_response_line helper function to the fast_export lib to read a line from that file. Unfortunately this means that svn-fe needs file descriptor 3 to be redirected from somewhere (preferrably the cat-blob stream of a fast-import backend); otherwise it will fail: $ svndump <path> \| svn-fe fatal: cannot read from file descriptor 3: Bad file descriptor For the moment, "svn-fe 3</dev/null" works as a workaround but it will not work for very long. A fast-import backend that can retrieve old commits is needed in order to be able to fulfill svn "Node-copyfrom-rev" requests that refer to revs from a previous run. [jn: with new change description] Based-on-patch-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>	14 years ago
Jonathan Nieder	75323459b8	svn-fe: warn about experimental status svn-fe is young and some coming cleanups might involve backward incompatible UI changes. Add some words of warning to the manual so early adopters that are not following the project closely don't get burned. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	14 years ago
Jonathan Nieder	5c28a8b054	vcs-svn: Check for errors from open() test-svn-fe segfaults when passed a bogus path. Simplify debugging by exiting with a meaningful error message instead. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Jonathan Nieder	d0fc40c741	svn-fe manual: Clarify warning about deltas in dump files Those in the know would notice that dump file format version 2 means "svnadmin dump --no-deltas", but for the rest of us, an explicit reminder is useful. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Jonathan Nieder	712308f29a	Update svn-fe manual The svn-fe example does not litter the working directory with .bin files any more (hoorah!). The permissive error handling implies a known bug. We should be flagging iffy input and, even if we continue, reporting it on exit. Cc: David Barr <david.barr@cordelta.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
David Barr	21746aa34f	SVN dump parser 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>	15 years ago
Ramkumar Ramachandra	755a605d6e	contrib/svn-fe: Add the svn-fe target to .gitignore Add the svn-fe target to .gitignroe. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Ramkumar Ramachandra	199f549874	contrib/svn-fe: Fix IncludePath Include the path "../../vcs-svn" while compiling it in the Makefile and change svn-fe.c to include svndump.h. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Jonathan Nieder	e605164d1d	Add a sample user for the svndump library The svn-fe tool takes a Subversion dump file as input and produces a fast-import stream as output. This can be useful as a low-level tool in building other importers, or for debugging the vcs-svn library. make svn-fe make svn-fe.1 to test. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago