dwc

wc -l clone in Python, plus support directory as argument

install

pip install dwc

Usage

Show total lines count of all files in current directory (.):

$ dwc .
212: .

Show only total lines count of python files (.py):

$ dwc -t py  # chose filetype .py
82: .

Show lines count of each file:

$ dwc -t py --debug
16: ./setup.py
66: ./dwc.py
82: .

Show lines count of all sub-directories under a path, do not count protobuf generated files (*.pb.go) and test codes *_test.go:

$ dwc github.com/influxdata/* -t go --exclude '*.pb.go, *_test.go'
    201: github.com/influxdata/config
  71695: github.com/influxdata/influxdb
 232527: github.com/influxdata/kapacitor
  43749: github.com/influxdata/telegraf
   4448: github.com/influxdata/toml
    166: github.com/influxdata/wlog

Why kapacitor is that big? Find out the reason:

$ dwc github.com/influxdata/kapacitor -t go --exclude '*.pb.go, *_test.go' -d | sort -nr | head
 232527: github.com/influxdata/kapacitor
   9664: github.com/influxdata/kapacitor/vendor/github.com/influxdata/influxdb/influxql/iterator.gen.go
   4795: github.com/influxdata/kapacitor/vendor/github.com/influxdata/influxdb/influxql/ast.go
   3154: github.com/influxdata/kapacitor/vendor/github.com/gogo/protobuf/protoc-gen-gogo/generator/generator.go
   2931: github.com/influxdata/kapacitor/vendor/github.com/influxdata/influxdb/influxql/parser.go

Oh because they commit vendor directory. Exclude that out:

$ dwc github.com/influxdata/kapacitor -t go --exclude '*.pb.go, *_test.go, */vendor/*'
  46407: github.com/influxdata/kapacitor

Find out the shortest implementations of Make a LISP

$ dwc mal/*/ | sort -n | head
    494: mal/examples/
    846: mal/docs/
   1268: mal/mal/
   1464: mal/perl6/
   1483: mal/coffee/
   1509: mal/io/
   1534: mal/racket/
   1571: mal/ocaml/
   1579: mal/es6/
   1621: mal/factor/

So mal is the best, then perl6 and coffee in term of shortest implementations.

Use case

Are you writing micro services? If each service implementation contains more than 3000 lines of code, is that still micro service anyway?

Author

hvn@familug.org