rootio/cmd/root-print: first import
This CL adds a WIP command to print (to PNG, PDF, ...) histograms from
ROOT files.
Its CLI is loosely based on rootprint
from ROOT-6.
Usage: root-print [options] file.root [file.root [...]]
ex:
$> root-print -f pdf ./testdata/histos.root
$> root-print -f pdf ./testdata/histos.root:h1
$> root-print -f pdf ./testdata/histos.root:h*
$> root-print -f pdf -o output ./testdata/histos.root:h1
options:
-f string
output format for plots (pdf, png, svg, ...) (default "pdf")
-o string
output directory for plots
-v enable verbose mode