[PATCH 12/13] Implement close_file

[Ramkumar Ramachandra <artagnon@gmail.com>]

close_file measures the length of the temporary file to write text
headers and full text before cleaning up the temporary file. It also
writes props and prop deltas if necessary.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 dump_editor.c |   76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 76 insertions(+), 0 deletions(-)

diff --git a/dump_editor.c b/dump_editor.c
index 51d5ebe..6f74af9 100644
--- a/dump_editor.c
+++ b/dump_editor.c
@@ -522,6 +522,82 @@ svn_error_t *close_file(void *file_baton,
 			const char *text_checksum,
 			apr_pool_t *pool)
 {
+	struct edit_baton *eb = file_baton;
+	apr_file_t *temp_file;
+	svn_stream_t *temp_filestream;
+	apr_finfo_t *info = apr_pcalloc(pool, sizeof(apr_finfo_t));
+
+	/* We didn't write the property headers because we were
+	   waiting for file_prop_change; write them now */
+	SVN_ERR(dump_props(eb, &dump_props_pending, FALSE, pool));
+
+	/* The prop headers have already been dumped in dump_node */
+	/* Dump the text headers */
+	if (must_dump_text) {
+		/* text-delta header */
+		SVN_ERR(svn_stream_printf(eb->stream, pool,
+					  SVN_REPOS_DUMPFILE_TEXT_DELTA
+					  ": true\n"));
+
+		/* Measure the length */
+		SVN_ERR(svn_io_stat(info, eb->temp_filepath, APR_FINFO_SIZE, pool));
+
+		/* text-content-length header */
+		SVN_ERR(svn_stream_printf(eb->stream, pool,
+					  SVN_REPOS_DUMPFILE_TEXT_CONTENT_LENGTH
+					  ": %lu\n",
+					  (unsigned long)info->size));
+		/* text-content-md5 header */
+		SVN_ERR(svn_stream_printf(eb->stream, pool,
+					  SVN_REPOS_DUMPFILE_TEXT_CONTENT_MD5
+					   ": %s\n",
+					  text_checksum));
+	}
+
+	/* content-length header: if both text and props are absent,
+	   skip this block */
+	if (must_dump_props || dump_props_pending)
+		SVN_ERR(svn_stream_printf(eb->stream, pool,
+					  SVN_REPOS_DUMPFILE_CONTENT_LENGTH
+					  ": %ld\n\n",
+					  (unsigned long)info->size + eb->propstring->len));
+	else if (must_dump_text)
+		SVN_ERR(svn_stream_printf(eb->stream, pool,
+					  SVN_REPOS_DUMPFILE_CONTENT_LENGTH
+					  ": %ld\n\n",
+					  (unsigned long)info->size));
+
+	/* Dump the props; the propstring should have already been
+	   written in dump_node or above */
+	if (must_dump_props || dump_props_pending) {
+		SVN_ERR(svn_stream_write(eb->stream, eb->propstring->data,
+					 &(eb->propstring->len)));
+
+		/* Cleanup */
+		must_dump_props = dump_props_pending = FALSE;
+		apr_hash_clear(eb->properties);
+		apr_hash_clear(eb->del_properties);
+	}
+
+	/* Dump the text */
+	if (must_dump_text) {
+
+		/* Open the temporary file, map it to a stream, copy
+		   the stream to eb->stream, close and delete the
+		   file */
+		SVN_ERR(svn_io_file_open(&temp_file, eb->temp_filepath, APR_READ, 0600, pool));
+		temp_filestream = svn_stream_from_aprfile2(temp_file, TRUE, pool);
+		SVN_ERR(svn_stream_copy3(temp_filestream, eb->stream, NULL, NULL, pool));
+
+		/* Cleanup */
+		SVN_ERR(svn_io_file_close(temp_file, pool));
+		SVN_ERR(svn_stream_close(temp_filestream));
+		SVN_ERR(svn_io_remove_file2(eb->temp_filepath, TRUE, pool));
+		must_dump_text = FALSE;
+	}
+
+	SVN_ERR(svn_stream_printf(eb->stream, pool, "\n\n"));
+
 	return SVN_NO_ERROR;
 }
 
-- 
1.7.1