static int input_error(struct line_buffer *file)
{
if (!buffer_ferror(file))
printf("delta preimage ends early\n");
else
printf("cannot read delta preimage: %s\n", strerror(errno));
return -1;
}
static const char *get_response_line(void)
{
const char *line = buffer_read_line(&report_buffer);
if (line)
return line;
if (buffer_ferror(&report_buffer))
die_errno("error reading from fast-import");
die("unexpected end of fast-import feedback");
}
static void die_short_read(struct line_buffer *input)
{
if (buffer_ferror(input))
die_errno("error reading dump file");
die("invalid dump: unexpected end of file");
}
void svndump_read(const char *url)
{
char *val;
char *t;
uint32_t active_ctx = DUMP_CTX;
uint32_t len;
reset_dump_ctx(url);
while ((t = buffer_read_line(&input))) {
val = strchr(t, ':');
if (!val)
continue;
val++;
if (*val != ' ')
continue;
val++;
/* strlen(key) + 1 */
switch (val - t - 1) {
case sizeof("SVN-fs-dump-format-version"):
if (constcmp(t, "SVN-fs-dump-format-version"))
continue;
dump_ctx.version = atoi(val);
if (dump_ctx.version > 3)
die("expected svn dump format version <= 3, found %"PRIu32,
dump_ctx.version);
break;
case sizeof("UUID"):
if (constcmp(t, "UUID"))
continue;
strbuf_reset(&dump_ctx.uuid);
strbuf_addstr(&dump_ctx.uuid, val);
break;
case sizeof("Revision-number"):
if (constcmp(t, "Revision-number"))
continue;
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
begin_revision();
if (active_ctx != DUMP_CTX)
end_revision();
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
break;
case sizeof("Node-path"):
if (prefixcmp(t, "Node-"))
continue;
if (!constcmp(t + strlen("Node-"), "path")) {
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
begin_revision();
active_ctx = NODE_CTX;
reset_node_ctx(val);
break;
}
if (constcmp(t + strlen("Node-"), "kind"))
continue;
if (!strcmp(val, "dir"))
node_ctx.type = REPO_MODE_DIR;
else if (!strcmp(val, "file"))
node_ctx.type = REPO_MODE_BLB;
else
fprintf(stderr, "Unknown node-kind: %s\n", val);
break;
case sizeof("Node-action"):
if (constcmp(t, "Node-action"))
continue;
if (!strcmp(val, "delete")) {
node_ctx.action = NODEACT_DELETE;
} else if (!strcmp(val, "add")) {
node_ctx.action = NODEACT_ADD;
} else if (!strcmp(val, "change")) {
node_ctx.action = NODEACT_CHANGE;
} else if (!strcmp(val, "replace")) {
node_ctx.action = NODEACT_REPLACE;
} else {
fprintf(stderr, "Unknown node-action: %s\n", val);
node_ctx.action = NODEACT_UNKNOWN;
}
break;
case sizeof("Node-copyfrom-path"):
if (constcmp(t, "Node-copyfrom-path"))
continue;
strbuf_reset(&node_ctx.src);
strbuf_addstr(&node_ctx.src, val);
break;
case sizeof("Node-copyfrom-rev"):
if (constcmp(t, "Node-copyfrom-rev"))
continue;
node_ctx.srcRev = atoi(val);
break;
case sizeof("Text-content-length"):
if (!constcmp(t, "Text-content-length")) {
char *end;
uintmax_t textlen;
textlen = strtoumax(val, &end, 10);
if (!isdigit(*val) || *end)
die("invalid dump: non-numeric length %s", val);
if (textlen > maximum_signed_value_of_type(off_t))
die("unrepresentable length in dump: %s", val);
node_ctx.text_length = (off_t) textlen;
break;
}
if (constcmp(t, "Prop-content-length"))
continue;
node_ctx.propLength = atoi(val);
break;
case sizeof("Text-delta"):
if (!constcmp(t, "Text-delta")) {
node_ctx.text_delta = !strcmp(val, "true");
break;
}
if (constcmp(t, "Prop-delta"))
continue;
node_ctx.prop_delta = !strcmp(val, "true");
break;
case sizeof("Content-length"):
if (constcmp(t, "Content-length"))
continue;
len = atoi(val);
t = buffer_read_line(&input);
if (!t)
die_short_read();
if (*t)
die("invalid dump: expected blank line after content length header");
if (active_ctx == REV_CTX) {
read_props();
} else if (active_ctx == NODE_CTX) {
handle_node();
active_ctx = INTERNODE_CTX;
} else {
fprintf(stderr, "Unexpected content length header: %"PRIu32"\n", len);
if (buffer_skip_bytes(&input, len) != len)
die_short_read();
}
}
}
if (buffer_ferror(&input))
die_short_read();
if (active_ctx == NODE_CTX)
handle_node();
if (active_ctx == REV_CTX)
begin_revision();
if (active_ctx != DUMP_CTX)
end_revision();
}
static void die_short_read(void)
{
if (buffer_ferror(&input))
die_errno("error reading dump file");
die("invalid dump: unexpected end of file");
}
