Andrew's git - gitweb.git/blob - vcs-svn/fast

   1/*
   2 * Licensed under a two-clause BSD-style license.
   3 * See LICENSE for details.
   4 */
   5
   6#include "git-compat-util.h"
   7#include "fast_export.h"
   8#include "line_buffer.h"
   9#include "repo_tree.h"
  10#include "string_pool.h"
  11
  12#define MAX_GITSVN_LINE_LEN 4096
  13
  14static uint32_t first_commit_done;
  15
  16void fast_export_delete(uint32_t depth, uint32_t *path)
  17{
  18        putchar('D');
  19        putchar(' ');
  20        pool_print_seq(depth, path, '/', stdout);
  21        putchar('\n');
  22}
  23
  24void fast_export_modify(uint32_t depth, uint32_t *path, uint32_t mode,
  25                        uint32_t mark)
  26{
  27        /* Mode must be 100644, 100755, 120000, or 160000. */
  28        printf("M %06"PRIo32" :%"PRIu32" ", mode, mark);
  29        pool_print_seq(depth, path, '/', stdout);
  30        putchar('\n');
  31}
  32
  33static char gitsvnline[MAX_GITSVN_LINE_LEN];
  34void fast_export_commit(uint32_t revision, const char *author,
  35                        const struct strbuf *log,
  36                        const char *uuid, const char *url,
  37                        unsigned long timestamp)
  38{
  39        static const struct strbuf empty = STRBUF_INIT;
  40        if (!log)
  41                log = &empty;
  42        if (*uuid && *url) {
  43                snprintf(gitsvnline, MAX_GITSVN_LINE_LEN,
  44                                "\n\ngit-svn-id: %s@%"PRIu32" %s\n",
  45                                 url, revision, uuid);
  46        } else {
  47                *gitsvnline = '\0';
  48        }
  49        printf("commit refs/heads/master\n");
  50        printf("committer %s <%s@%s> %ld +0000\n",
  51                   *author ? author : "nobody",
  52                   *author ? author : "nobody",
  53                   *uuid ? uuid : "local", timestamp);
  54        printf("data %"PRIuMAX"\n",
  55                (uintmax_t) (log->len + strlen(gitsvnline)));
  56        fwrite(log->buf, log->len, 1, stdout);
  57        printf("%s\n", gitsvnline);
  58        if (!first_commit_done) {
  59                if (revision > 1)
  60                        printf("from refs/heads/master^0\n");
  61                first_commit_done = 1;
  62        }
  63        repo_diff(revision - 1, revision);
  64        fputc('\n', stdout);
  65
  66        printf("progress Imported commit %"PRIu32".\n\n", revision);
  67}
  68
  69static void die_short_read(struct line_buffer *input)
  70{
  71        if (buffer_ferror(input))
  72                die_errno("error reading dump file");
  73        die("invalid dump: unexpected end of file");
  74}
  75
  76void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len, struct line_buffer *input)
  77{
  78        if (mode == REPO_MODE_LNK) {
  79                /* svn symlink blobs start with "link " */
  80                len -= 5;
  81                if (buffer_skip_bytes(input, 5) != 5)
  82                        die_short_read(input);
  83        }
  84        printf("blob\nmark :%"PRIu32"\ndata %"PRIu32"\n", mark, len);
  85        if (buffer_copy_bytes(input, len) != len)
  86                die_short_read(input);
  87        fputc('\n', stdout);
  88}