Fossil with Commonmark

  char *zPrior;          /* Prior name if the name was changed */
  char isFrom;           /* True if obtained from the parent */
  char isExe;            /* True if executable */
  char isLink;           /* True if symlink */
};
#endif

/*
** State information common to all import types.
*/
static struct {
  const char *zTrunkName;     /* Name of trunk branch */
  const char *zBranchPre;     /* Prepended to non-trunk branch names */
  const char *zBranchSuf;     /* Appended to non-trunk branch names */
  const char *zTagPre;        /* Prepended to non-trunk tag names */
  const char *zTagSuf;        /* Appended to non-trunk tag names */
} gimport;

/*
** State information about an on-going fast-import parse.
*/
static struct {
  void (*xFinish)(void);      /* Function to finish a prior record */
  int nData;                  /* Bytes of data */

** control artifact to the BLOB table.
*/
static void finish_tag(void){
  Blob record, cksum;
  if( gg.zDate && gg.zTag && gg.zFrom && gg.zUser ){
    blob_zero(&record);
    blob_appendf(&record, "D %s\n", gg.zDate);
    blob_appendf(&record, "T +%F%F%F %s\n", gimport.zTagPre, gg.zTag,
        gimport.zTagSuf, gg.zFrom);
    blob_appendf(&record, "U %F\n", gg.zUser);
    md5sum_blob(&record, &cksum);
    blob_appendf(&record, "Z %b\n", &cksum);
    fast_insert_content(&record, 0, 0, 1);
    blob_reset(&cksum);
  }
  import_reset(0);

    zFromBranch = 0;
  }

  /* Add the required "T" cards to the manifest. Make sure they are added
  ** in sorted order and without any duplicates. Otherwise, fossil will not
  ** recognize the document as a valid manifest. */
  if( !gg.tagCommit && fossil_strcmp(zFromBranch, gg.zBranch)!=0 ){
    aTCard[nTCard++] = mprintf("T *branch * %F%F%F\n", gimport.zBranchPre,
        gg.zBranch, gimport.zBranchSuf);
    aTCard[nTCard++] = mprintf("T *sym-%F%F%F *\n", gimport.zBranchPre,
        gg.zBranch, gimport.zBranchSuf);
    if( zFromBranch ){
      aTCard[nTCard++] = mprintf("T -sym-%F%F%F *\n", gimport.zBranchPre,
          zFromBranch, gimport.zBranchSuf);
    }
  }
  if( gg.zFrom==0 ){
    aTCard[nTCard++] = mprintf("T *sym-%F *\n", gimport.zTrunkName);
  }
  qsort(aTCard, nTCard, sizeof(char *), string_cmp);
  for(i=0; i<nTCard; i++){
    if( i==0 || fossil_strcmp(aTCard[i-1], aTCard[i]) ){
      blob_appendf(&record, "%s", aTCard[i]);
    }
  }

  ** but overwrite that entry if a later instance of the same tag appears.
  **
  ** This behavior seems like a bug in git-fast-export, but it is easier
  ** to work around the problem than to fix git-fast-export.
  */
  if( gg.tagCommit && gg.zDate && gg.zUser && gg.zFrom ){
    blob_appendf(&record, "D %s\n", gg.zDate);
    blob_appendf(&record, "T +sym-%F%F%F %s\n", gimport.zBranchPre, gg.zBranch,
        gimport.zBranchSuf, gg.zPrevCheckin);
    blob_appendf(&record, "U %F\n", gg.zUser);
    md5sum_blob(&record, &cksum);
    blob_appendf(&record, "Z %b\n", &cksum);
    db_multi_exec(
       "INSERT OR REPLACE INTO xtag(tname, tcontent)"
       " VALUES(%Q,%Q)", gg.zBranch, blob_str(&record)
    );

  const char *zTrunk;         /* Name of trunk folder in repo root */
  int lenTrunk;               /* String length of zTrunk */
  const char *zBranches;      /* Name of branches folder in repo root */
  int lenBranches;            /* String length of zBranches */
  const char *zTags;          /* Name of tags folder in repo root */
  int lenTags;                /* String length of zTags */
  Bag newBranches;            /* Branches that were created in this revision */
  int revFlag;                /* Add svn-rev-nn tags on every checkin */
  const char *zRevPre;        /* Prepended to revision tag names */
  const char *zRevSuf;        /* Appended to revision tag names */
  const char **azIgnTree;     /* NULL-terminated list of dirs to ignore */
} gsvn;
typedef struct {
  char *zKey;
  char *zVal;
} KeyVal;
typedef struct {
  KeyVal *aHeaders;

    if( !bag_find(&gsvn.newBranches, branchId) ){
      parentRid = db_int(0, "SELECT trid, max(trev) FROM xrevisions"
                            " WHERE trev<%d AND tbranch=%d",
                         gsvn.rev, branchId);
    }
    if( parentRid>0 ){
      pParentManifest = manifest_get(parentRid, CFTYPE_MANIFEST, 0);
      if( pParentManifest ){
        pParentFile = manifest_file_next(pParentManifest, 0);
        parentBranch = db_int(0, "SELECT tbranch FROM xrevisions WHERE trid=%d",
                              parentRid);
        if( parentBranch!=branchId && branchType!=SVN_TAG ){
          sameAsParent = 0;
        }
      }
    }
    if( mergeRid<MAX_INT_32 ){
      if( gsvn.zComment ){
        blob_appendf(&manifest, "C %F\n", gsvn.zComment);
      }else{
        blob_append(&manifest, "C (no\\scomment)\n", 16);

          char *zParentUuid = rid_to_uuid(parentRid);
          if( parentRid==mergeRid || mergeRid==0){
            char *zParentBranch =
              db_text(0, "SELECT tname FROM xbranches WHERE tid=%d",
                      parentBranch
              );
            blob_appendf(&manifest, "P %s\n", zParentUuid);
            blob_appendf(&manifest, "T *branch * %F%F%F\n", gimport.zBranchPre,
                zBranch, gimport.zBranchSuf);
            blob_appendf(&manifest, "T *sym-%F%F%F *\n", gimport.zBranchPre,
                zBranch, gimport.zBranchSuf);
            if( gsvn.revFlag ){
              blob_appendf(&manifest, "T +sym-%Fr%d%F *\n", gimport.zTagPre,
                  gsvn.rev, gimport.zTagSuf);
            }
            blob_appendf(&manifest, "T -sym-%F%F%F *\n", gimport.zBranchPre,
                zParentBranch, gimport.zBranchSuf);
            fossil_free(zParentBranch);
          }else{
            char *zMergeUuid = rid_to_uuid(mergeRid);
            blob_appendf(&manifest, "P %s %s\n", zParentUuid, zMergeUuid);
            if( gsvn.revFlag ){
              blob_appendf(&manifest, "T +sym-%F%d%F *\n", gsvn.zRevPre,
                  gsvn.rev, gsvn.zRevSuf);
            }
            fossil_free(zMergeUuid);
          }
          fossil_free(zParentUuid);
        }else{
          blob_appendf(&manifest, "T *branch * %F%F%F\n",
              gimport.zBranchPre, zBranch, gimport.zBranchSuf);
          blob_appendf(&manifest, "T *sym-%F%F%F *\n", gimport.zBranchPre,
              zBranch, gimport.zBranchSuf);
          if( gsvn.revFlag ){
            blob_appendf(&manifest, "T +sym-%F%d%F *\n", gsvn.zRevPre, gsvn.rev,
                gsvn.zRevSuf);
          }
        }
      }else if( branchType==SVN_TAG ){
        char *zParentUuid = rid_to_uuid(parentRid);
        blob_reset(&manifest);
        blob_appendf(&manifest, "D %s\n", gsvn.zDate);
        blob_appendf(&manifest, "T +sym-%F%F%F %s\n", gimport.zTagPre, zBranch,
            gimport.zTagSuf, zParentUuid);
        fossil_free(zParentUuid);
      }
    }else{
      char *zParentUuid = rid_to_uuid(parentRid);
      blob_appendf(&manifest, "D %s\n", gsvn.zDate);
      if( branchType!=SVN_TAG ){
        blob_appendf(&manifest, "T +closed %s\n", zParentUuid);
      }else{
        blob_appendf(&manifest, "T -sym-%F%F%F %s\n", gimport.zBranchPre,
            zBranch, gimport.zBranchSuf, zParentUuid);
      }
      fossil_free(zParentUuid);
    }
    if( gsvn.zUser ){
      blob_appendf(&manifest, "U %F\n", gsvn.zUser);
    }else{
      const char *zUserOvrd = find_option("user-override",0,1);

    }
    zDiff += lenData;
  }
}

/*
** Extract the branch or tag that the given path is on. Return the branch ID.
** Return 0 if not a branch, tag, or trunk, or if ignored by --ignore-tree.
*/
static int svn_parse_path(char *zPath, char **zFile, int *type){
  char *zBranch = 0;
  int branchId = 0;
  if( gsvn.azIgnTree ){
    const char **pzIgnTree;
    unsigned nPath = strlen(zPath);
    for( pzIgnTree = gsvn.azIgnTree; *pzIgnTree; ++pzIgnTree ){
      const char *zIgn = *pzIgnTree;
      int nIgn = strlen(zIgn);
      if( strncmp(zPath, zIgn, nIgn) == 0
       && ( nPath == nIgn || (nPath > nIgn && zPath[nIgn] == '/')) ){
        return 0;
      }
    }
  }
  *type = SVN_UNKNOWN;
  *zFile = 0;
  if( gsvn.lenTrunk==0 ){
    zBranch = "trunk";
    *zFile = zPath;
    *type = SVN_TRUNK;
  }else

        }
      }else
      if( strncmp(zAction, "change", 6)==0 ){
        int rid = 0;
        if( zKind==0 ){
          fossil_fatal("Missing Node-kind");
        }
        if( rec.contentFlag && strncmp(zKind, "dir", 3)!=0 ){
          if( deltaFlag ){
            Blob deltaSrc;
            Blob target;
            rid = db_int(0, "SELECT rid FROM blob WHERE uuid=("
                            " SELECT tuuid FROM xfiles"
                            "  WHERE tpath=%Q AND tbranch=%d"
                            ")", zFile, branchId);

** The following formats are currently understood by this command
**
**   --git        Import from the git-fast-export file format (default)
**                Options:
**                  --import-marks FILE Restore marks table from FILE
**                  --export-marks FILE Save marks table to FILE
**
**   --svn        Import from the svnadmin-dump file format.  The default
**                behaviour (unless overridden by --flat) is to treat 3
**                folders in the SVN root as special, following the
**                common layout of SVN repositories.  These are (by
**                default) trunk/, branches/ and tags/.  The SVN --deltas
**                format is supported but not required.
**                Options:
**                  --trunk FOLDER     Name of trunk folder
**                  --branches FOLDER  Name of branches folder
**                  --tags FOLDER      Name of tags folder
**                  --base PATH        Path to project root in repository
**                  --flat             The whole dump is a single branch
**                  --rev-tags         Tag each revision, implied by -i
**                  --no-rev-tags      Disables tagging effect of -i
**                  --rename-rev PAT   Rev tag names, default "svn-rev-%"
**                  --ignore-tree DIR  Ignores subtree rooted at DIR
**
** Common Options:
**   -i|--incremental     allow importing into an existing repository
**   -f|--force           overwrite repository if already exists
**   -q|--quiet           omit progress output
**   --no-rebuild         skip the "rebuilding metadata" step
**   --no-vacuum          skip the final VACUUM of the database file
**   --rename-trunk NAME  use NAME as name of imported trunk branch
**   --rename-branch PAT  rename all branch names using PAT pattern
**   --rename-tag PAT     rename all tag names using PAT pattern
**
** The --incremental option allows an existing repository to be extended
** with new content.  The --rename-* options may be useful to avoid name
** conflicts when using the --incremental option.
**
** The argument to --rename-* contains one "%" character to be replaced
** with the original name.  For example, "--rename-tag svn-%-tag" renames
** the tag called "release" to "svn-release-tag".
**
** --ignore-tree is useful for importing Subversion repositories which
** move branches to subdirectories of "branches/deleted" instead of
** deleting them.  It can be supplied multiple times if necessary.
**
** See also: export
*/
void import_cmd(void){
  char *zPassword;
  FILE *pIn;
  Stmt q;

  /* Options for --svn only */
  const char *zBase="";
  int flatFlag=0;

  /* Options for --git only */
  const char *markfile_in;
  const char *markfile_out;

  /* Interpret --rename-* options.  Use a table to avoid code duplication. */
  const struct {
    const char *zOpt, **varPre, *zDefaultPre, **varSuf, *zDefaultSuf;
    int format; /* 1=git, 2=svn, 3=any */
  } renOpts[] = {
    {"rename-branch", &gimport.zBranchPre,   "", &gimport.zBranchSuf, "", 3},
    {"rename-tag"   , &gimport.zTagPre   ,   "", &gimport.zTagSuf   , "", 3},
    {"rename-rev"   , &gsvn.zRevPre, "svn-rev-", &gsvn.zRevSuf      , "", 2},
  }, *renOpt = renOpts;
  int i;
  for( i = 0; i < sizeof(renOpts) / sizeof(*renOpts); ++i, ++renOpt ){
    if( 1 << svnFlag & renOpt->format ){
      const char *zArgument = find_option(renOpt->zOpt, 0, 1);
      if( zArgument ){
         const char *sep = strchr(zArgument, '%');
         if( !sep ){
           fossil_fatal("missing '%%' in argument to --%s", renOpt->zOpt);
         }else if( strchr(sep + 1, '%') ){
           fossil_fatal("multiple '%%' in argument to --%s", renOpt->zOpt);
         }
         *renOpt->varPre = fossil_malloc(sep - zArgument + 1);
         memcpy((char *)*renOpt->varPre, zArgument, sep - zArgument);
         ((char *)*renOpt->varPre)[sep - zArgument] = 0;
         *renOpt->varSuf = sep + 1;
       }else{
         *renOpt->varPre = renOpt->zDefaultPre;
         *renOpt->varSuf = renOpt->zDefaultSuf;
       }
    }
  }
  if( !(gimport.zTrunkName = find_option("rename-trunk", 0, 1)) ){
    gimport.zTrunkName = "trunk";
  }

  if( svnFlag ){
    /* Get --svn related options here, so verify_all_options() fails when
     * svn-only options are specified with --git
     */
    const char *zIgnTree;
    unsigned nIgnTree = 0;
    while( (zIgnTree = find_option("ignore-tree", 0, 1)) ){
      if ( *zIgnTree ){
        gsvn.azIgnTree = fossil_realloc(gsvn.azIgnTree,
            sizeof(*gsvn.azIgnTree) * (nIgnTree + 2));
        gsvn.azIgnTree[nIgnTree++] = zIgnTree;
        gsvn.azIgnTree[nIgnTree] = 0;
      }
    }
    zBase = find_option("base", 0, 1);
    flatFlag = find_option("flat", 0, 0)!=0;
    gsvn.zTrunk = find_option("trunk", 0, 1);
    gsvn.zBranches = find_option("branches", 0, 1);
    gsvn.zTags = find_option("tags", 0, 1);
    gsvn.revFlag = find_option("rev-tags", 0, 0)
                || (incrFlag && !find_option("no-rev-tags", 0, 0));
  }else if( gitFlag ){
    markfile_in = find_option("import-marks", 0, 1);
    markfile_out = find_option("export-marks", 0, 1);
  }
  verify_all_options();

  if( g.argc!=3 && g.argc!=4 ){