Implement feature new format: Cli. Generate adapter for tabulate. This close issue #340

* Implement feature new format: Cli. Generate adapter for  tabulate. This close issue #340

* Write respective tests.

* Correct name Clase Base Test

* Implement missing class method to export cli.

* Remove property headers in method export book Cli.

* Remove cli from list to test Iterable data books.

3 files changed, 30 insertions, 1 deletions

diff --git a/src/tablib/core.py b/src/tablib/core.py
index 17d9621..e0c4327 100644
--- a/src/tablib/core.py
+++ b/src/tablib/core.py
@@ -622,6 +622,14 @@ class Dataset:
         pass
 
     @property
+    def cli():
+        """A CLI table representation of the :class:`Dataset` object.
+
+        .. note:: This method can be used for export only.
+        """
+        pass
+
+    @property
     def jira():
         """A Jira table representation of the :class:`Dataset` object.
 
diff --git a/src/tablib/formats/__init__.py b/src/tablib/formats/__init__.py
index 12f2610..b0afeec 100644
--- a/src/tablib/formats/__init__.py
+++ b/src/tablib/formats/__init__.py
@@ -14,6 +14,7 @@ from . import _tsv as tsv
 from . import _xls as xls
 from . import _xlsx as xlsx
 from . import _yaml as yaml
+from . import _cli as cli
 
 # xlsx before as xls (xlrd) can also read xlsx
-available = (json, xlsx, xls, yaml, csv, dbf, tsv, html, jira, latex, ods, df, rst)
+available = (json, xlsx, xls, yaml, csv, dbf, tsv, html, jira, latex, ods, df, rst, cli)
diff --git a/src/tablib/formats/_cli.py b/src/tablib/formats/_cli.py
new file mode 100644
index 0000000..5441e2f
--- /dev/null
+++ b/src/tablib/formats/_cli.py
@@ -0,0 +1,20 @@
+""" Tablib - CLI Support
+"""
+from tabulate import tabulate
+
+title = 'cli'
+extensions = ('txt',)
+
+DEFAULT_FORMAT = 'plain'
+
+def export_set(dataset, **kwargs):
+    """Returns CLI representation of Dataset."""
+    if( dataset.headers is not None ):
+        kwargs.setdefault('headers', dataset.headers)
+    kwargs.setdefault('tablefmt', DEFAULT_FORMAT)
+    return tabulate( dataset, **kwargs)
+
+def export_book(dataset, **kwargs):
+    """Returns CLI representation of Dataset."""
+    kwargs.setdefault('tablefmt', DEFAULT_FORMAT)
+    return tabulate( dataset, **kwargs)