Fossil

**
** Query parameters:
**
**    name=PATH        Directory to display.  Optional
**    ci=LABEL         Show only files in this check-in.  Optional.
**    re=REGEXP        Show only files matching REGEXP.  Optional.
**    expand           Begin with the tree fully expanded.
**    nofiles          Show directories (folders) only.  Omit files.
*/
void page_tree(void){
  char *zD = fossil_strdup(P("name"));
  int nD = zD ? strlen(zD)+1 : 0;
  const char *zCI = P("ci");
  int rid = 0;
  char *zUuid = 0;
  Blob dirname;
  Manifest *pM = 0;
  int nFile = 0;           /* Number of files (or folders with "nofiles") */
  int linkTrunk = 1;       /* include link to "trunk" */
  int linkTip = 1;         /* include link to "tip" */
  const char *zRE;         /* the value for the re=REGEXP query parameter */
  const char *zObjType;    /* "files" by default or "folders" for "nofiles" */
  char *zREx = "";         /* Extra parameters for path hyperlinks */
  ReCompiled *pRE = 0;     /* Compiled regular expression */
  FileTreeNode *p;         /* One line of the tree */
  FileTree sTree;          /* The complete tree of files */
  HQuery sURI;             /* Hyperlink */
  int startExpanded;       /* True to start out with the tree expanded */
  int showDirOnly;         /* Show directories only.  Omit files */
  char *zProjectName = db_get("project-name", 0);

  if( strcmp(PD("type",""),"flat")==0 ){ page_dir(); return; }
  memset(&sTree, 0, sizeof(sTree));
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  while( nD>1 && zD[nD-2]=='/' ){ zD[(--nD)-1] = 0; }

  sqlite3_create_function(g.db, "pathelement", 2, SQLITE_UTF8, 0,
                          pathelementFunc, 0, 0);
  url_initialize(&sURI, "tree");
  if( P("nofiles")!=0 ){
    showDirOnly = 1;
    url_add_parameter(&sURI, "nofiles", "1");
    style_header("Folder Hierarchy");
  }else{
    showDirOnly = 0;
    style_header("File Tree");
  }
  if( P("expand")!=0 ){
    startExpanded = 1;
    url_add_parameter(&sURI, "expand", "1");
  }else{
    startExpanded = 0;
  }

  /* If a regular expression is specified, compile it */
  zRE = P("re");
  if( zRE ){
    re_compile(&pRE, zRE, 0);
    url_add_parameter(&sURI, "re", zRE);
    zREx = mprintf("&re=%T", zRE);

    if( zRE ){
      blob_appendf(&dirname, "matching \"%s\"", zRE);
    }
  }
  if( zCI ){
    style_submenu_element("All", "All", "%s",
                          url_render(&sURI, "ci", 0, 0, 0));
    if( nD==0 && !showDirOnly ){
      style_submenu_element("File Ages", "File Ages", "%R/fileage?name=%S",
                            zUuid);
    }
  }
  if( linkTrunk ){
    style_submenu_element("Trunk", "Trunk", "%s",
                          url_render(&sURI, "ci", "trunk", 0, 0));
  }
  if ( linkTip ){
    style_submenu_element("Tip", "Tip", "%s",
                          url_render(&sURI, "ci", "tip", 0, 0));
  }
  if( !showDirOnly ){
    style_submenu_element("Flat-View", "Flat-View", "%s",
                          url_render(&sURI, "type", "flat", 0, 0));
  }

  /* Compute the file hierarchy.
  */
  if( zCI ){
    Stmt ins, q;
    ManifestFile *pFile;

    db_multi_exec(

      }
      if( pRE && re_match(pRE, (const u8*)z, -1)==0 ) continue;
      tree_add_node(&sTree, z, 0);
      nFile++;
    }
    db_finalize(&q);
  }

  if( showDirOnly ){
    for(nFile=0, p=sTree.pFirst; p; p=p->pNext){
      if( p->isDir && p->nFullName>nD ) nFile++;
    }
    zObjType = "folders";
    style_submenu_element("Files","Files","%s",
                          url_render(&sURI,"nofiles",0,0,0));
  }else{
    zObjType = "files";
    style_submenu_element("Folders","Folders","%s",
                          url_render(&sURI,"nofiles","1",0,0));
  }

  if( zCI ){
    @ <h2>%d(nFile) %s(zObjType) of check-in
    if( sqlite3_strnicmp(zCI, zUuid, (int)strlen(zCI))!=0 ){
      @ "%h(zCI)"
    }
    @ [%z(href("vinfo?name=%T",zUuid))%S(zUuid)</a>] %s(blob_str(&dirname))</h2>
  }else{
    int n = db_int(0, "SELECT count(*) FROM plink");
    @ <h2>%d(nFile) %s(zObjType) from all %d(n) check-ins
    @ %s(blob_str(&dirname))</h2>
  }


  /* Generate tree of lists.
  **
  ** Each file and directory is a list element: <li>.  Files have class=file

      }
      @ %z(href("%s",url_render(&sURI,"name",p->zFullName,0,0)))%h(p->zName)</a>
      if( startExpanded || p->nFullName<=nD ){
        @ <ul>
      }else{
        @ <ul style='display:none;'>
      }
    }else if( !showDirOnly ){
      char *zLink;
      if( zCI ){
        zLink = href("%R/artifact/%S",p->zUuid);
      }else{
        zLink = href("%R/finfo?name=%T",p->zFullName);
      }
      @ <li class="%z(fileext_class(p->zName))">%z(zLink)%h(p->zName)</a>

        fossil_free(zUrl);
      }
      @ </td></tr>
      @ <tr><th>Other&nbsp;Links:</th>
      @   <td>
      @     %z(href("%R/tree?ci=%S",zUuid))files</a>
      @   | %z(href("%R/fileage?name=%S",zUuid))file ages</a>
      @   | %z(href("%R/tree?ci=%S&nofiles",zUuid))folders</a>
      @   | %z(href("%R/artifact/%S",zUuid))manifest</a>
      if( g.perm.Write ){
        @   | %z(href("%R/ci_edit?r=%S",zUuid))edit</a>
      }
      @   </td>
      @ </tr>
      blob_reset(&projName);