[RFC v2 08/16] vcs-svn: add fast_export_note to create notes

[Florian Achleitner <florian.achleitner.2.6.31@gmail.com>]

From: Dmitry Ivankov <divanorama@gmail.com>

fast_export lacked a method to writes notes to fast-import stream.
Add two new functions fast_export_note which is similar to
fast_export_modify. And also add fast_export_buf_to_data to be able
to write inline blobs that don't come from a line_buffer or from delta
application.

To be used like this:
fast_export_begin_commit("refs/notes/somenotes", ...)

fast_export_note("refs/heads/master", "inline")
fast_export_buf_to_data(&data)
or maybe
fast_export_note("refs/heads/master", sha1)

Signed-off-by: Dmitry Ivankov <divanorama@gmail.com>
Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
---
 vcs-svn/fast_export.c |   12 ++++++++++++
 vcs-svn/fast_export.h |    2 ++
 2 files changed, 14 insertions(+)

diff --git a/vcs-svn/fast_export.c b/vcs-svn/fast_export.c
index 11f8f94..1ecae4b 100644
--- a/vcs-svn/fast_export.c
+++ b/vcs-svn/fast_export.c
@@ -68,6 +68,11 @@ void fast_export_modify(const char *path, uint32_t mode, const char *dataref)
 	putchar('\n');
 }
 
+void fast_export_note(const char *committish, const char *dataref)
+{
+	printf("N %s %s\n", dataref, committish);
+}
+
 static char gitsvnline[MAX_GITSVN_LINE_LEN];
 void fast_export_begin_commit(uint32_t revision, const char *author,
 			const struct strbuf *log,
@@ -222,6 +227,13 @@ static long apply_delta(off_t len, struct line_buffer *input,
 	return ret;
 }
 
+void fast_export_buf_to_data(const struct strbuf *data)
+{
+	printf("data %"PRIuMAX"\n", (uintmax_t)data->len);
+	fwrite(data->buf, data->len, 1, stdout);
+	fputc('\n', stdout);
+}
+
 void fast_export_data(uint32_t mode, off_t len, struct line_buffer *input)
 {
 	assert(len >= 0);
diff --git a/vcs-svn/fast_export.h b/vcs-svn/fast_export.h
index 17eb13b..9b32f1e 100644
--- a/vcs-svn/fast_export.h
+++ b/vcs-svn/fast_export.h
@@ -9,11 +9,13 @@ void fast_export_deinit(void);
 
 void fast_export_delete(const char *path);
 void fast_export_modify(const char *path, uint32_t mode, const char *dataref);
+void fast_export_note(const char *committish, const char *dataref);
 void fast_export_begin_commit(uint32_t revision, const char *author,
 			const struct strbuf *log, const char *uuid,
 			const char *url, unsigned long timestamp, const char *local_ref);
 void fast_export_end_commit(uint32_t revision);
 void fast_export_data(uint32_t mode, off_t len, struct line_buffer *input);
+void fast_export_buf_to_data(const struct strbuf *data);
 void fast_export_blob_delta(uint32_t mode,
 			uint32_t old_mode, const char *old_data,
 			off_t len, struct line_buffer *input);
-- 
1.7.9.5