Author: Rene Brun
This notebook tutorial was automatically generated with ROOTBOOK-izer (Beta) from the macro found in the ROOT repository on Thursday, January 19, 2017 at 04:31 PM.
In [1]:
%%cpp -d
#include "TFile.h"
#include "TKey.h"
#include "TMacro.h"
Int_t nlines = 0;
Int_t nfiles = 0;
Int_t ndirs = 0;
Int_t nh = 0;
Int_t nc = 0;
Int_t nC = 0;
Int_t npy = 0;
A helper function is created:
In [2]:
%%cpp -d
void readdir(TDirectory *dir) {
ndirs++;
TDirectory *dirsav = gDirectory;
TIter next(dir->GetListOfKeys());
TKey *key;
while ((key = (TKey*)next())) {
if (key->IsFolder()) {
dir->cd(key->GetName());
TDirectory *subdir = gDirectory;
readdir(subdir);
dirsav->cd();
continue;
}
TMacro *macro = (TMacro*)key->ReadObj();
nfiles++;
nlines += macro->GetListOfLines()->GetEntries();
if (strstr(key->GetName(),".h")) nh++;
if (strstr(key->GetName(),".c")) nc++;
if (strstr(key->GetName(),".C")) nC++;
if (strstr(key->GetName(),".py")) npy++;
delete macro;
}
}
In [3]:
TFile *f = new TFile("code.root");
if (f->IsZombie()) {
printf("File code.root does not exist. Run tutorial importCode.C first\n");
return;
}
printf("Reading file ==> code.root\n");
printf("File size in bytes = %lld\n",f->GetEND());
printf("File compression factor = %g\n",f->GetCompressionFactor());
readdir(f);
printf("Number of sub-dirs = %d\n",ndirs);
printf("Number of macro files = %d\n",nfiles);
printf("Number of lines in mac = %d\n",nlines);
printf("Number of cxx,c,cc files = %d\n",nc);
printf("Number of C files = %d\n",nC);
printf("Number of Python files = %d\n",npy);