Fossil

    }
    return 0;
  }
  while( fossil_isspace(zB[0]) ) zB++;
  while( fossil_isspace(zA[0]) ) zA++;
  return zA[0]==0 && zB[0]==0;
}

/*
** The following methods operate on the newtags temporary table
** that is used to collect various changes to be added to a control
** artifact for a check-in edit.
*/
static void init_newtags(void){
  db_multi_exec("CREATE TEMP TABLE newtags(tag UNIQUE, prefix, value)");
}

static void change_special(
  const char *zName,    /* Name of the special tag */
  const char *zOp,      /* Operation prefix (e.g. +,-,*) */
  const char *zValue    /* Value of the tag */
){
  db_multi_exec("REPLACE INTO newtags VALUES(%Q,'%q',%Q)", zName, zOp, zValue);
}

static void change_sym_tag(const char *zTag, const char *zOp){
  db_multi_exec("REPLACE INTO newtags VALUES('sym-%q',%Q,NULL)", zTag, zOp);
}

static void cancel_special(const char *zTag){
  change_special(zTag,"-",0);
}

static void add_color(const char *zNewColor, int fPropagateColor){
  change_special("bgcolor",fPropagateColor ? "*" : "+", zNewColor);
}

static void cancel_color(void){
  change_special("color","-",0);
}

static void add_comment(const char *zNewComment){
  change_special("comment","+",zNewComment);
}

static void add_date(const char *zNewDate){
  change_special("date","+",zNewDate);
}

static void add_user(const char *zNewUser){
  change_special("user","+",zNewUser);
}

static void add_tag(const char *zNewTag){
  change_sym_tag(zNewTag,"+");
}

static void cancel_tag(int rid, const char *zCancelTag){
  if( db_exists("SELECT 1 FROM tagxref, tag"
                " WHERE tagxref.rid=%d AND tagtype>0"
                "   AND tagxref.tagid=tag.tagid AND tagname='sym-%q'",
                rid, zCancelTag)
  ) change_sym_tag(zCancelTag,"-");
}

static void hide_branch(void){
  change_special("hidden","*",0);
}

static void close_leaf(int rid){
  change_special("closed",is_a_leaf(rid)?"+":"*",0);
}

static void change_branch(int rid, const char *zNewBranch){
  db_multi_exec(
    "REPLACE INTO newtags "
    " SELECT tagname, '-', NULL FROM tagxref, tag"
    "  WHERE tagxref.rid=%d AND tagtype==2"
    "    AND tagname GLOB 'sym-*'"
    "    AND tag.tagid=tagxref.tagid",
    rid
  );
  change_special("branch","*",zNewBranch);
  change_sym_tag(zNewBranch,"*");
}

/*
** The apply_newtags method is called after all newtags have been added
** and the control artifact is completed and then written to the DB.
*/
static void apply_newtags(Blob *ctrl, int rid, const char *zUuid){
  Stmt q;
  int nChng = 0;

  db_prepare(&q, "SELECT tag, prefix, value FROM newtags"
                 " ORDER BY prefix || tag");
  while( db_step(&q)==SQLITE_ROW ){
    const char *zTag = db_column_text(&q, 0);
    const char *zPrefix = db_column_text(&q, 1);
    const char *zValue = db_column_text(&q, 2);
    nChng++;
    if( zValue ){
      blob_appendf(ctrl, "T %s%F %s %F\n", zPrefix, zTag, zUuid, zValue);
    }else{
      blob_appendf(ctrl, "T %s%F %s\n", zPrefix, zTag, zUuid);
    }
  }
  db_finalize(&q);
  if( nChng>0 ){
    int nrid;
    Blob cksum;
    blob_appendf(ctrl, "U %F\n", login_name());
    md5sum_blob(ctrl, &cksum);
    blob_appendf(ctrl, "Z %b\n", &cksum);
    db_begin_transaction();
    g.markPrivate = content_is_private(rid);
    nrid = content_put(ctrl);
    manifest_crosslink(nrid, ctrl, MC_PERMIT_HOOKS);
    assert( blob_is_reset(ctrl) );
    db_end_transaction(0);
  }
}

/*
** WEBPAGE: ci_edit
** URL:  /ci_edit?r=RID&c=NEWCOMMENT&u=NEWUSER
**
** Present a dialog for updating properties of a check-in.
**

    char *zNow;
    int nChng = 0;

    login_verify_csrf_secret();
    blob_zero(&ctrl);
    zNow = date_in_standard_format(zChngTime ? zChngTime : "now");
    blob_appendf(&ctrl, "D %s\n", zNow);
    init_newtags();
    if( zNewColor[0]
     && (fPropagateColor!=fNewPropagateColor
             || fossil_strcmp(zColor,zNewColor)!=0)


    ) add_color(zNewColor,fNewPropagateColor);





    if( zNewColor[0]==0 && zColor[0]!=0 ) cancel_color();


    if( comment_compare(zComment,zNewComment)==0 ) add_comment(zNewComment);



    if( fossil_strcmp(zDate,zNewDate)!=0 ) add_date(zNewDate);



    if( fossil_strcmp(zUser,zNewUser)!=0 ) add_user(zNewUser);


    db_prepare(&q,
       "SELECT tag.tagid, tagname FROM tagxref, tag"
       " WHERE tagxref.rid=%d AND tagtype>0 AND tagxref.tagid=tag.tagid",
       rid
    );
    while( db_step(&q)==SQLITE_ROW ){
      int tagid = db_column_int(&q, 0);
      const char *zTag = db_column_text(&q, 1);
      char zLabel[30];
      sqlite3_snprintf(sizeof(zLabel), zLabel, "c%d", tagid);
      if( P(zLabel) ) cancel_special(zTag);

    }

    db_finalize(&q);
    if( zHideFlag[0] ) hide_branch();


    if( zCloseFlag[0] ) close_leaf(rid);



    if( zNewTagFlag[0] && zNewTag[0] ) add_tag(zNewTag);


    if( zNewBrFlag[0] && zNewBranch[0] ) change_branch(rid,zNewBranch);






























    apply_newtags(&ctrl, rid, zUuid);








    cgi_redirectf("ci?name=%s", zUuid);
  }
  blob_zero(&comment);
  blob_append(&comment, zNewComment, -1);
  zUuid[10] = 0;
  style_header("Edit Check-in [%s]", zUuid);
  /*

  @ <input type="submit" name="apply" value="Apply Changes" />
  @ <input type="submit" name="cancel" value="Cancel" />
  @ </td></tr>
  @ </table>
  @ </div></form>
  style_footer();
}

/*
** COMMAND: edit
**
** Usage: %fossil edit UUID ?OPTIONS?
**
** Options:
**
**    --euser USER            Make USER the check-in user
**    --comment COMMENT       Make COMMENT the check-in comment
**    --date DATE             Make DATE the check-in time
**    --bgcolor COLOR         Apply COLOR to this check-in
**    --branchcolor COLOR     Apply COLOR to the branch
**    --tag TAG               Add new TAG to this check-in
**    --cancel TAG            Cancel TAG from this check-in
**    --branch NAME           Make this check-in the start of branch NAME
**    --hide                  Hide branch starting from this check-in
**    --close                 Mark this "leaf" as closed
*/
void ci_edit_cmd(void){
  int rid;
  const char *zComment;         /* Current comment on the check-in */
  const char *zNewComment;      /* Revised check-in comment */
  const char *zUser;            /* Current user for the check-in */
  const char *zNewUser;         /* Revised user */
  const char *zDate;            /* Current date of the check-in */
  const char *zNewDate;         /* Revised check-in date */
  const char *zColor;
  const char *zNewColor;
  const char *zNewBrColor;
  const char *zNewTag;
  const char *zNewBranch;
  const char *zCancelTag;
  int fClose;                   /* True if leaf should be closed */
  int fHide;                    /* True if branch should be hidden */
  int fPropagateColor;          /* True if color propagates before edit */
  int fNewPropagateColor = 0;   /* True if color propagates after edit */
  const char *zChngTime;        /* The change time on the control artifact */
  const char *zUuid;
  Blob ctrl;
  char *zNow;

  if( g.argc<3 ) usage("UUID ?OPTIONS?");
  zNewComment = find_option("comment",0,1);
  zNewBranch = find_option("branch",0,1);
  zNewColor = find_option("bgcolor",0,1);
  zNewBrColor = find_option("branchcolor",0,1);
  if( zNewBrColor ){
    zNewColor = zNewBrColor;
    fNewPropagateColor = 1;
  }
  zNewDate = find_option("date",0,1);
  zNewUser = find_option("euser",0,1);
  zNewTag = find_option("tag",0,1);
  zCancelTag = find_option("cancel",0,1);
  fClose = find_option("close",0,0)!=0;
  fHide = find_option("hide",0,0)!=0;
  zChngTime = find_option("chngtime",0,1);
  db_find_and_open_repository(0,0);
  user_select();
  verify_all_options();
  rid = name_to_typed_rid(g.argv[2], "ci");
  zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
  zComment = db_text(0, "SELECT coalesce(ecomment,comment)"
                        "  FROM event WHERE objid=%d", rid);
  if( zComment==0 || zComment[0]==0 ) fossil_fatal("No comment on rid %d", rid);
  zUser = db_text(0, "SELECT coalesce(euser,user)"
                     "  FROM event WHERE objid=%d", rid);
  if( zUser==0 || zUser[0]==0 ) fossil_fatal("No user on rid %d", rid);
  zDate = db_text(0, "SELECT datetime(mtime)"
                     "  FROM event WHERE objid=%d", rid);
  if( zDate==0 || zDate[0]==0 ) fossil_fatal("No date on rid %d", rid);
  zColor = db_text("", "SELECT bgcolor"
                        "  FROM event WHERE objid=%d", rid);
  fPropagateColor = db_int(0, "SELECT tagtype FROM tagxref"
                              " WHERE rid=%d AND tagid=%d",
                              rid, TAG_BGCOLOR)==2;
  fNewPropagateColor = zNewColor && zNewColor[0]
                        ? fNewPropagateColor : fPropagateColor;
  blob_zero(&ctrl);
  zNow = date_in_standard_format(zChngTime && zChngTime[0] ? zChngTime : "now");
  blob_appendf(&ctrl, "D %s\n", zNow);
  init_newtags();
  if( zNewColor && zNewColor[0]
      && (fPropagateColor!=fNewPropagateColor
            || fossil_strcmp(zColor,zNewColor)!=0)
  ) add_color(zNewColor,fNewPropagateColor);
  if( (zNewColor!=0 && zNewColor[0]==0) && (zColor && zColor[0] ) ){
    cancel_color();
  }
  if( zNewComment && zNewComment[0]
      && comment_compare(zComment,zNewComment)==0 ) add_comment(zNewComment);
  if( zNewDate && zNewDate[0] && fossil_strcmp(zDate,zNewDate)!=0 ){
    add_date(zNewDate);
  }
  if( zNewUser && zNewUser[0] && fossil_strcmp(zUser,zNewUser)!=0 ){
    add_user(zNewUser);
  }
  if( zNewTag && zNewTag[0] ) add_tag(zNewTag);
  if( zCancelTag && zCancelTag[0] ) cancel_tag(rid,zCancelTag);
  if( fHide ) hide_branch();
  if( fClose ) close_leaf(rid);
  if( zNewBranch && zNewBranch[0] ) change_branch(rid,zNewBranch);
  apply_newtags(&ctrl, rid, zUuid);
}