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;
  15static struct line_buffer report_buffer = LINE_BUFFER_INIT;
  16
  17void fast_export_init(int fd)
  18{
  19        if (buffer_fdinit(&report_buffer, fd))
  20                die_errno("cannot read from file descriptor %d", fd);
  21}
  22
  23void fast_export_deinit(void)
  24{
  25        if (buffer_deinit(&report_buffer))
  26                die_errno("error closing fast-import feedback stream");
  27}
  28
  29void fast_export_reset(void)
  30{
  31        buffer_reset(&report_buffer);
  32}
  33
  34void fast_export_delete(uint32_t depth, uint32_t *path)
  35{
  36        putchar('D');
  37        putchar(' ');
  38        pool_print_seq(depth, path, '/', stdout);
  39        putchar('\n');
  40}
  41
  42void fast_export_modify(uint32_t depth, uint32_t *path, uint32_t mode,
  43                        uint32_t mark)
  44{
  45        /* Mode must be 100644, 100755, 120000, or 160000. */
  46        printf("M %06"PRIo32" :%"PRIu32" ", mode, mark);
  47        pool_print_seq(depth, path, '/', stdout);
  48        putchar('\n');
  49}
  50
  51static char gitsvnline[MAX_GITSVN_LINE_LEN];
  52void fast_export_commit(uint32_t revision, uint32_t author, char *log,
  53                        uint32_t uuid, uint32_t url,
  54                        unsigned long timestamp)
  55{
  56        if (!log)
  57                log = "";
  58        if (~uuid && ~url) {
  59                snprintf(gitsvnline, MAX_GITSVN_LINE_LEN,
  60                                "\n\ngit-svn-id: %s@%"PRIu32" %s\n",
  61                                 pool_fetch(url), revision, pool_fetch(uuid));
  62        } else {
  63                *gitsvnline = '\0';
  64        }
  65        printf("commit refs/heads/master\n");
  66        printf("committer %s <%s@%s> %ld +0000\n",
  67                   ~author ? pool_fetch(author) : "nobody",
  68                   ~author ? pool_fetch(author) : "nobody",
  69                   ~uuid ? pool_fetch(uuid) : "local", timestamp);
  70        printf("data %"PRIu32"\n%s%s\n",
  71                   (uint32_t) (strlen(log) + strlen(gitsvnline)),
  72                   log, gitsvnline);
  73        if (!first_commit_done) {
  74                if (revision > 1)
  75                        printf("from refs/heads/master^0\n");
  76                first_commit_done = 1;
  77        }
  78        repo_diff(revision - 1, revision);
  79        fputc('\n', stdout);
  80
  81        printf("progress Imported commit %"PRIu32".\n\n", revision);
  82}
  83
  84static const char *get_response_line(void)
  85{
  86        const char *line = buffer_read_line(&report_buffer);
  87        if (line)
  88                return line;
  89        if (buffer_ferror(&report_buffer))
  90                die_errno("error reading from fast-import");
  91        die("unexpected end of fast-import feedback");
  92}
  93
  94void fast_export_blob(uint32_t mode, uint32_t mark, uint32_t len, struct line_buffer *input)
  95{
  96        if (mode == REPO_MODE_LNK) {
  97                /* svn symlink blobs start with "link " */
  98                buffer_skip_bytes(input, 5);
  99                len -= 5;
 100        }
 101        printf("blob\nmark :%"PRIu32"\ndata %"PRIu32"\n", mark, len);
 102        buffer_copy_bytes(input, len);
 103        fputc('\n', stdout);
 104}