Fossil

        TAG_BRANCH, leaf_is_closed_sql("tagxref.rid")
      );
      break;
    }
  }
}

/*
** If the branch named in the argument is open, return a RID for one of
** the open leaves of that branch.  If the branch does not exists or is
** closed, return 0.
*/
int branch_is_open(const char *zBrName){
  return db_int(0,
    "SELECT rid FROM tagxref AS ox"
    " WHERE tagid=%d"
    "   AND tagtype=2"
    "   AND value=%Q"
    "   AND rid IN leaf"
    "   AND NOT EXISTS(SELECT 1 FROM tagxref AS ix"
                      " WHERE tagid=%d"
                      "   AND tagtype=1"
                      "   AND ox.rid=ix.rid)",
    TAG_BRANCH, zBrName, TAG_CLOSED
  );
}


/*
** COMMAND: branch
**
** Usage: %fossil branch SUBCOMMAND ... ?OPTIONS?
**
** Run various subcommands to manage branches of the open repository or
** of the repository identified by the -R or --repository option.
**
**    fossil branch new BRANCH-NAME BASIS ?OPTIONS?
**
**        Create a new branch BRANCH-NAME off of check-in BASIS.
**        Supported options for this subcommand include:
**        --private             branch is private (i.e., remains local)
**        --bgcolor COLOR       use COLOR instead of automatic background
**        --nosign              do not sign contents on this branch
**        --date-override DATE  DATE to use instead of 'now'
**        --user-override USER  USER to use instead of the current default
**
**        DATE may be "now" or "YYYY-MM-DDTHH:MM:SS.SSS". If in
**        year-month-day form, it may be truncated, the "T" may be
**        replaced by a space, and it may also name a timezone offset
**        from UTC as "-HH:MM" (westward) or "+HH:MM" (eastward).
**        Either no timezone suffix or "Z" means UTC.
**
**    fossil branch list|ls ?-a|--all|-c|--closed?
**
**        List all branches.  Use -a or --all to list all branches and
**        -c or --closed to list all closed branches.  The default is to
**        show only open branches.
**
**    fossil branch info BRANCH-NAME
**
**        Print information about a branch
**
** Options:
**    -R|--repository FILE       Run commands on repository FILE
*/
void branch_cmd(void){
  int n;
  const char *zCmd = "list";
  db_find_and_open_repository(0, 0);

    branch_prepare_list_query(&q, brFlags);
    while( db_step(&q)==SQLITE_ROW ){
      const char *zBr = db_column_text(&q, 0);
      int isCur = zCurrent!=0 && fossil_strcmp(zCurrent,zBr)==0;
      fossil_print("%s%s\n", (isCur ? "* " : "  "), zBr);
    }
    db_finalize(&q);
  }else if( strncmp(zCmd,"info",n)==0 ){
    int i;
    for(i=3; i<g.argc; i++){
      const char *zBrName = g.argv[i];
      int rid = branch_is_open(zBrName);
      if( rid==0 ){
        fossil_print("%s: not an open branch\n", zBrName);
      }else{
        const char *zUuid = db_text(0,"SELECT uuid FROM blob WHERE rid=%d",rid);
        const char *zDate = db_text(0,
          "SELECT datetime(mtime,toLocal()) FROM event"
          " WHERE objid=%d", rid);
        fossil_print("%s: open as of %s on %.16s\n", zBrName, zDate, zUuid);
      }
    }
  }else{
    fossil_fatal("branch subcommand should be one of: "
                 "info list ls new");
  }
}

static const char brlistQuery[] =
@ SELECT
@   tagxref.value,
@   max(event.mtime),

  sCiInfo.zUserOvrd = find_option("user-override",0,1);
  db_must_be_within_tree();
  noSign = db_get_boolean("omitsign", 0)|noSign;
  if( db_get_boolean("clearsign", 0)==0 ){ noSign = 1; }
  useCksum = db_get_boolean("repo-cksum", 1);
  outputManifest = db_get_manifest_setting();
  verify_all_options();

  /* Do not allow the creation of a new branch using an existing open
  ** branch name unless the --force flag is used */
  if( sCiInfo.zBranch!=0 && !forceFlag && branch_is_open(sCiInfo.zBranch) ){
    fossil_fatal("an open branch named \"%s\" already exists - use --force"
                 " to override", sCiInfo.zBranch);
  }

  /* Escape special characters in tags and put all tags in sorted order */
  if( nTag ){
    int i;
    for(i=0; i<nTag; i++) sCiInfo.azTag[i] = mprintf("%F", sCiInfo.azTag[i]);
    qsort((void*)sCiInfo.azTag, nTag, sizeof(sCiInfo.azTag[0]), tagCmp);
  }