#include "repo_tree.h"
#include "fast_export.h"
#include "line_buffer.h"
-#include "obj_pool.h"
-#include "string_pool.h"
+#include "strbuf.h"
/*
* Compare start of string to literal of equal length;
*/
#define constcmp(s, ref) memcmp(s, ref, sizeof(ref) - 1)
+#define REPORT_FILENO 3
+
#define NODEACT_REPLACE 4
#define NODEACT_DELETE 3
#define NODEACT_ADD 2
#define NODEACT_CHANGE 1
#define NODEACT_UNKNOWN 0
-#define DUMP_CTX 0
-#define REV_CTX 1
-#define NODE_CTX 2
+/* States: */
+#define DUMP_CTX 0 /* dump metadata */
+#define REV_CTX 1 /* revision metadata */
+#define NODE_CTX 2 /* node metadata */
+#define INTERNODE_CTX 3 /* between nodes */
#define LENGTH_UNKNOWN (~0)
#define DATE_RFC2822_LEN 31
-/* Create memory pool for log messages */
-obj_pool_gen(log, char, 4096)
-
static struct line_buffer input = LINE_BUFFER_INIT;
-static char *log_copy(uint32_t length, const char *log)
-{
- char *buffer;
- log_free(log_pool.size);
- buffer = log_pointer(log_alloc(length));
- strncpy(buffer, log, length);
- return buffer;
-}
-
static struct {
uint32_t action, propLength, textLength, srcRev, type;
- uint32_t src[REPO_MAX_PATH_DEPTH], dst[REPO_MAX_PATH_DEPTH];
+ struct strbuf src, dst;
uint32_t text_delta, prop_delta;
} node_ctx;
static struct {
- uint32_t revision, author;
+ uint32_t revision;
unsigned long timestamp;
- char *log;
+ struct strbuf log, author;
} rev_ctx;
static struct {
- uint32_t version, uuid, url;
+ uint32_t version;
+ struct strbuf uuid, url;
} dump_ctx;
static void reset_node_ctx(char *fname)
node_ctx.action = NODEACT_UNKNOWN;
node_ctx.propLength = LENGTH_UNKNOWN;
node_ctx.textLength = LENGTH_UNKNOWN;
- node_ctx.src[0] = ~0;
+ strbuf_reset(&node_ctx.src);
node_ctx.srcRev = 0;
- pool_tok_seq(REPO_MAX_PATH_DEPTH, node_ctx.dst, "/", fname);
+ strbuf_reset(&node_ctx.dst);
+ if (fname)
+ strbuf_addstr(&node_ctx.dst, fname);
node_ctx.text_delta = 0;
node_ctx.prop_delta = 0;
}
{
rev_ctx.revision = revision;
rev_ctx.timestamp = 0;
- rev_ctx.log = NULL;
- rev_ctx.author = ~0;
+ strbuf_reset(&rev_ctx.log);
+ strbuf_reset(&rev_ctx.author);
}
-static void reset_dump_ctx(uint32_t url)
+static void reset_dump_ctx(const char *url)
{
- dump_ctx.url = url;
+ strbuf_reset(&dump_ctx.url);
+ if (url)
+ strbuf_addstr(&dump_ctx.url, url);
dump_ctx.version = 1;
- dump_ctx.uuid = ~0;
+ strbuf_reset(&dump_ctx.uuid);
}
static void handle_property(const struct strbuf *key_buf,
- const char *val, uint32_t len,
+ struct strbuf *val,
uint32_t *type_set)
{
const char *key = key_buf->buf;
break;
if (!val)
die("invalid dump: unsets svn:log");
- /* Value length excludes terminating nul. */
- rev_ctx.log = log_copy(len + 1, val);
+ strbuf_swap(&rev_ctx.log, val);
break;
case sizeof("svn:author"):
if (constcmp(key, "svn:author"))
break;
- rev_ctx.author = pool_intern(val);
+ if (!val)
+ strbuf_reset(&rev_ctx.author);
+ else
+ strbuf_swap(&rev_ctx.author, val);
break;
case sizeof("svn:date"):
if (constcmp(key, "svn:date"))
break;
if (!val)
die("invalid dump: unsets svn:date");
- if (parse_date_basic(val, &rev_ctx.timestamp, NULL))
- warning("invalid timestamp: %s", val);
+ if (parse_date_basic(val->buf, &rev_ctx.timestamp, NULL))
+ warning("invalid timestamp: %s", val->buf);
break;
case sizeof("svn:executable"):
case sizeof("svn:special"):
static void read_props(void)
{
static struct strbuf key = STRBUF_INIT;
+ static struct strbuf val = STRBUF_INIT;
const char *t;
/*
* NEEDSWORK: to support simple mode changes like
uint32_t type_set = 0;
while ((t = buffer_read_line(&input)) && strcmp(t, "PROPS-END")) {
uint32_t len;
- const char *val;
const char type = t[0];
int ch;
if (!type || t[1] != ' ')
die("invalid property line: %s\n", t);
len = atoi(&t[2]);
- val = buffer_read_string(&input, len);
- if (!val || strlen(val) != len)
+ strbuf_reset(&val);
+ buffer_read_binary(&input, &val, len);
+ if (val.len < len)
die_short_read();
/* Discard trailing newline. */
if (ch == EOF)
die_short_read();
if (ch != '\n')
- die("invalid dump: expected newline after %s", val);
+ die("invalid dump: expected newline after %s", val.buf);
switch (type) {
case 'K':
+ strbuf_swap(&key, &val);
+ continue;
case 'D':
- strbuf_reset(&key);
- if (val)
- strbuf_add(&key, val, len);
- if (type == 'K')
- continue;
- assert(type == 'D');
- val = NULL;
- len = 0;
- /* fall through */
+ handle_property(&val, NULL, &type_set);
+ continue;
case 'V':
- handle_property(&key, val, len, &type_set);
+ handle_property(&key, &val, &type_set);
strbuf_reset(&key);
continue;
default:
static void handle_node(void)
{
- uint32_t mark = 0;
const uint32_t type = node_ctx.type;
const int have_props = node_ctx.propLength != LENGTH_UNKNOWN;
const int have_text = node_ctx.textLength != LENGTH_UNKNOWN;
+ /*
+ * Old text for this node:
+ * NULL - directory or bug
+ * empty_blob - empty
+ * "<dataref>" - data retrievable from fast-import
+ */
+ static const char *const empty_blob = "::empty::";
+ const char *old_data = NULL;
if (node_ctx.text_delta)
die("text deltas not supported");
- if (have_text)
- mark = next_blob_mark();
+
if (node_ctx.action == NODEACT_DELETE) {
if (have_text || have_props || node_ctx.srcRev)
die("invalid dump: deletion node has "
"copyfrom info, text, or properties");
- return repo_delete(node_ctx.dst);
+ repo_delete(node_ctx.dst.buf);
+ return;
}
if (node_ctx.action == NODEACT_REPLACE) {
- repo_delete(node_ctx.dst);
+ repo_delete(node_ctx.dst.buf);
node_ctx.action = NODEACT_ADD;
}
if (node_ctx.srcRev) {
- repo_copy(node_ctx.srcRev, node_ctx.src, node_ctx.dst);
+ repo_copy(node_ctx.srcRev, node_ctx.src.buf, node_ctx.dst.buf);
if (node_ctx.action == NODEACT_ADD)
node_ctx.action = NODEACT_CHANGE;
}
die("invalid dump: directories cannot have text attached");
/*
- * Decide on the new content (mark) and mode (node_ctx.type).
+ * Find old content (old_data) and decide on the new mode.
*/
- if (node_ctx.action == NODEACT_CHANGE && !~*node_ctx.dst) {
+ if (node_ctx.action == NODEACT_CHANGE && !*node_ctx.dst.buf) {
if (type != REPO_MODE_DIR)
die("invalid dump: root of tree is not a regular file");
+ old_data = NULL;
} else if (node_ctx.action == NODEACT_CHANGE) {
uint32_t mode;
- if (!have_text)
- mark = repo_read_path(node_ctx.dst);
- mode = repo_read_mode(node_ctx.dst);
+ old_data = repo_read_path(node_ctx.dst.buf, &mode);
if (mode == REPO_MODE_DIR && type != REPO_MODE_DIR)
die("invalid dump: cannot modify a directory into a file");
if (mode != REPO_MODE_DIR && type == REPO_MODE_DIR)
die("invalid dump: cannot modify a file into a directory");
node_ctx.type = mode;
} else if (node_ctx.action == NODEACT_ADD) {
- if (!have_text && type != REPO_MODE_DIR)
+ if (type == REPO_MODE_DIR)
+ old_data = NULL;
+ else if (have_text)
+ old_data = empty_blob;
+ else
die("invalid dump: adds node without text");
} else {
die("invalid dump: Node-path block lacks Node-action");
/*
* Save the result.
*/
- repo_add(node_ctx.dst, node_ctx.type, mark);
- if (have_text)
- fast_export_blob(node_ctx.type, mark,
- node_ctx.textLength, &input);
+ if (type == REPO_MODE_DIR) /* directories are not tracked. */
+ return;
+ assert(old_data);
+ if (old_data == empty_blob)
+ /* For the fast_export_* functions, NULL means empty. */
+ old_data = NULL;
+ if (!have_text) {
+ fast_export_modify(node_ctx.dst.buf, node_ctx.type, old_data);
+ return;
+ }
+ fast_export_modify(node_ctx.dst.buf, node_ctx.type, "inline");
+ fast_export_data(node_ctx.type, node_ctx.textLength, &input);
}
-static void handle_revision(void)
+static void begin_revision(void)
+{
+ if (!rev_ctx.revision) /* revision 0 gets no git commit. */
+ return;
+ fast_export_begin_commit(rev_ctx.revision, rev_ctx.author.buf,
+ &rev_ctx.log, dump_ctx.uuid.buf, dump_ctx.url.buf,
+ rev_ctx.timestamp);
+}
+
+static void end_revision(void)
{
if (rev_ctx.revision)
- repo_commit(rev_ctx.revision, rev_ctx.author, rev_ctx.log,
- dump_ctx.uuid, dump_ctx.url, rev_ctx.timestamp);
+ fast_export_end_commit(rev_ctx.revision);
}
void svndump_read(const char *url)
uint32_t active_ctx = DUMP_CTX;
uint32_t len;
- reset_dump_ctx(pool_intern(url));
+ reset_dump_ctx(url);
while ((t = buffer_read_line(&input))) {
val = strchr(t, ':');
if (!val)
case sizeof("UUID"):
if (constcmp(t, "UUID"))
continue;
- dump_ctx.uuid = pool_intern(val);
+ 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)
- handle_revision();
+ end_revision();
active_ctx = REV_CTX;
reset_rev_ctx(atoi(val));
break;
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;
case sizeof("Node-copyfrom-path"):
if (constcmp(t, "Node-copyfrom-path"))
continue;
- pool_tok_seq(REPO_MAX_PATH_DEPTH, node_ctx.src, "/", val);
+ strbuf_reset(&node_ctx.src);
+ strbuf_addstr(&node_ctx.src, val);
break;
case sizeof("Node-copyfrom-rev"):
if (constcmp(t, "Node-copyfrom-rev"))
read_props();
} else if (active_ctx == NODE_CTX) {
handle_node();
- active_ctx = REV_CTX;
+ 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 (active_ctx == NODE_CTX)
handle_node();
+ if (active_ctx == REV_CTX)
+ begin_revision();
if (active_ctx != DUMP_CTX)
- handle_revision();
+ end_revision();
}
int svndump_init(const char *filename)
{
if (buffer_init(&input, filename))
return error("cannot open %s: %s", filename, strerror(errno));
- repo_init();
- reset_dump_ctx(~0);
+ fast_export_init(REPORT_FILENO);
+ strbuf_init(&dump_ctx.uuid, 4096);
+ strbuf_init(&dump_ctx.url, 4096);
+ strbuf_init(&rev_ctx.log, 4096);
+ strbuf_init(&rev_ctx.author, 4096);
+ strbuf_init(&node_ctx.src, 4096);
+ strbuf_init(&node_ctx.dst, 4096);
+ reset_dump_ctx(NULL);
reset_rev_ctx(0);
reset_node_ctx(NULL);
return 0;
void svndump_deinit(void)
{
- log_reset();
- repo_reset();
- reset_dump_ctx(~0);
+ fast_export_deinit();
+ reset_dump_ctx(NULL);
reset_rev_ctx(0);
reset_node_ctx(NULL);
+ strbuf_release(&rev_ctx.log);
+ strbuf_release(&node_ctx.src);
+ strbuf_release(&node_ctx.dst);
if (buffer_deinit(&input))
fprintf(stderr, "Input error\n");
if (ferror(stdout))
void svndump_reset(void)
{
- log_reset();
+ fast_export_reset();
buffer_reset(&input);
- repo_reset();
- reset_dump_ctx(~0);
- reset_rev_ctx(0);
- reset_node_ctx(NULL);
+ strbuf_release(&dump_ctx.uuid);
+ strbuf_release(&dump_ctx.url);
+ strbuf_release(&rev_ctx.log);
+ strbuf_release(&rev_ctx.author);
}