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diff --git a/vcs-svn/fast_export.c b/vcs-svn/fast_export.c
index a4d4d9993dac74f0e751009f30588aef62d3a573..a64a3c5633212fe5bd48f34d1ab568be6512df21 100644 (file)
--- a/vcs-svn/fast_export.c
+++ b/vcs-svn/fast_export.c
#include "line_buffer.h"
#include "repo_tree.h"
#include "string_pool.h"
+#include "strbuf.h"
#define MAX_GITSVN_LINE_LEN 4096
static uint32_t first_commit_done;
+static struct line_buffer report_buffer = LINE_BUFFER_INIT;
-void fast_export_delete(uint32_t depth, uint32_t *path)
+void fast_export_init(int fd)
{
- putchar('D');
- putchar(' ');
- pool_print_seq(depth, path, '/', stdout);
- putchar('\n');
+ if (buffer_fdinit(&report_buffer, fd))
+ die_errno("cannot read from file descriptor %d", fd);
}
-void fast_export_modify(uint32_t depth, uint32_t *path, uint32_t mode,
- uint32_t mark)
+void fast_export_deinit(void)
+{
+ if (buffer_deinit(&report_buffer))
+ die_errno("error closing fast-import feedback stream");
+}
+
+void fast_export_reset(void)
+{
+ buffer_reset(&report_buffer);
+}
+
+void fast_export_delete(uint32_t depth, const uint32_t *path)
+{
+ printf("D \"");
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+}
+
+static void fast_export_truncate(uint32_t depth, const uint32_t *path, uint32_t mode)
+{
+ fast_export_modify(depth, path, mode, "inline");
+ printf("data 0\n\n");
+}
+
+void fast_export_modify(uint32_t depth, const uint32_t *path, uint32_t mode,
+ const char *dataref)
{
/* Mode must be 100644, 100755, 120000, or 160000. */
- printf("M %06"PRIo32" :%"PRIu32" ", mode, mark);
- pool_print_seq(depth, path, '/', stdout);
- putchar('\n');
+ if (!dataref) {
+ fast_export_truncate(depth, path, mode);
+ return;
+ }
+ printf("M %06"PRIo32" %s \"", mode, dataref);
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
}
static char gitsvnline[MAX_GITSVN_LINE_LEN];
-void fast_export_commit(uint32_t revision, const char *author, char *log,
+void fast_export_begin_commit(uint32_t revision, const char *author, char *log,
const char *uuid, const char *url,
unsigned long timestamp)
{
*gitsvnline = '\0';
}
printf("commit refs/heads/master\n");
+ printf("mark :%"PRIu32"\n", revision);
printf("committer %s <%s@%s> %ld +0000\n",
*author ? author : "nobody",
*author ? author : "nobody",
log, gitsvnline);
if (!first_commit_done) {
if (revision > 1)
- printf("from refs/heads/master^0\n");
+ printf("from :%"PRIu32"\n", revision - 1);
first_commit_done = 1;
}
- repo_diff(revision - 1, revision);
- fputc('\n', stdout);
+}
+void fast_export_end_commit(uint32_t revision)
+{
printf("progress Imported commit %"PRIu32".\n\n", revision);
}
+static void ls_from_rev(uint32_t rev, uint32_t depth, const uint32_t *path)
+{
+ /* ls :5 path/to/old/file */
+ printf("ls :%"PRIu32" \"", rev);
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+ fflush(stdout);
+}
+
+static void ls_from_active_commit(uint32_t depth, const uint32_t *path)
+{
+ /* ls "path/to/file" */
+ printf("ls \"");
+ pool_print_seq_q(depth, path, '/', stdout);
+ printf("\"\n");
+ fflush(stdout);
+}
+
+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("invalid dump: unexpected end of file");
}
-void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len, struct line_buffer *input)
+void fast_export_data(uint32_t mode, uint32_t len, struct line_buffer *input)
{
if (mode == REPO_MODE_LNK) {
/* svn symlink blobs start with "link " */
@@ -78,8 +136,63 @@ void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len, struct line_bu
if (buffer_skip_bytes(input, 5) != 5)
die_short_read(input);
}
- printf("blob\nmark :%"PRIu32"\ndata %"PRIu32"\n", mark, len);
+ printf("data %"PRIu32"\n", len);
if (buffer_copy_bytes(input, len) != len)
die_short_read(input);
fputc('\n', stdout);
}
+
+static int parse_ls_response(const char *response, uint32_t *mode,
+ struct strbuf *dataref)
+{
+ const char *tab;
+ const char *response_end;
+
+ assert(response);
+ response_end = response + strlen(response);
+
+ if (*response == 'm') { /* Missing. */
+ errno = ENOENT;
+ return -1;
+ }
+
+ /* Mode. */
+ if (response_end - response < strlen("100644") ||
+ response[strlen("100644")] != ' ')
+ die("invalid ls response: missing mode: %s", response);
+ *mode = 0;
+ for (; *response != ' '; response++) {
+ char ch = *response;
+ if (ch < '0' || ch > '7')
+ die("invalid ls response: mode is not octal: %s", response);
+ *mode *= 8;
+ *mode += ch - '0';
+ }
+
+ /* ' blob ' or ' tree ' */
+ if (response_end - response < strlen(" blob ") ||
+ (response[1] != 'b' && response[1] != 't'))
+ die("unexpected ls response: not a tree or blob: %s", response);
+ response += strlen(" blob ");
+
+ /* Dataref. */
+ tab = memchr(response, '\t', response_end - response);
+ if (!tab)
+ die("invalid ls response: missing tab: %s", response);
+ strbuf_add(dataref, response, tab - response);
+ return 0;
+}
+
+int fast_export_ls_rev(uint32_t rev, uint32_t depth, const uint32_t *path,
+ uint32_t *mode, struct strbuf *dataref)
+{
+ ls_from_rev(rev, depth, path);
+ return parse_ls_response(get_response_line(), mode, dataref);
+}
+
+int fast_export_ls(uint32_t depth, const uint32_t *path,
+ uint32_t *mode, struct strbuf *dataref)
+{
+ ls_from_active_commit(depth, path);
+ return parse_ls_response(get_response_line(), mode, dataref);
+}