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remote-svn: add incremental import

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Search for a note attached to the ref to update and read it's
'Revision-number:'-line. Start import from the next svn revision.

If there is no next revision in the svn repo, svnrdump terminates with
a message on stderr an non-zero return value. This looks a little
weird, but there is no other way to know whether there is a new
revision in the svn repo.

On the start of an incremental import, the parent of the first commit
in the fast-import stream is set to the branch name to update. All
following commits specify their parent by a mark number. Previous mark
files are currently not reused.

Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
Acked-by: David Michael Barr <b@rr-dav.id.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Florian Achleitner
2012-09-19 17:21:27 +02:00
committed by Junio C Hamano
parent 8d7cd8eb3b
commit 8e43a1d010
7 changed files with 95 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
vcs-svn/svndump.c
View File

@ -309,20 +309,20 @@ static void begin_revision(const char *remote_ref)
rev_ctx.timestamp, remote_ref);
}
static void end_revision(void)
static void end_revision(const char *note_ref)
{
struct strbuf mark = STRBUF_INIT;
if (rev_ctx.revision) {
fast_export_end_commit(rev_ctx.revision);
fast_export_begin_note(rev_ctx.revision, "remote-svn",
"Note created by remote-svn.", rev_ctx.timestamp);
"Note created by remote-svn.", rev_ctx.timestamp, note_ref);
strbuf_addf(&mark, ":%"PRIu32, rev_ctx.revision);
fast_export_note(mark.buf, "inline");
fast_export_buf_to_data(&rev_ctx.note);
}
}
void svndump_read(const char *url, const char *local_ref)
void svndump_read(const char *url, const char *local_ref, const char *notes_ref)
{
char *val;
char *t;
@ -363,7 +363,7 @@ void svndump_read(const char *url, const char *local_ref)
if (active_ctx == REV_CTX)
begin_revision(local_ref);
if (active_ctx != DUMP_CTX)
end_revision();
end_revision(notes_ref);
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
strbuf_addf(&rev_ctx.note, "%s\n", t);
@ -479,7 +479,7 @@ void svndump_read(const char *url, const char *local_ref)
if (active_ctx == REV_CTX)
begin_revision(local_ref);
if (active_ctx != DUMP_CTX)
end_revision();
end_revision(notes_ref);
}
static void init(int report_fd)