From 2f50f51763b121b5f412f4c9ea25a7ecdb628517 Mon Sep 17 00:00:00 2001
From: Manolis Stamatogiannakis <mstamat@gmail.com>
Date: Sun, 8 Aug 2021 23:18:15 +0300
Subject: [PATCH] dep

---
 src/jj2cli/cli.py      | 25 ++++++++++++++++++++++++-
 src/jj2cli/defaults.py |  5 +++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/jj2cli/cli.py b/src/jj2cli/cli.py
index 0b0ff97..1965b02 100644
--- a/src/jj2cli/cli.py
+++ b/src/jj2cli/cli.py
@@ -12,7 +12,7 @@
 
 from . import __version__, filters, parsers
 from .customize import CustomizationModule
-from .defaults import CONTEXT_FORMATS
+from .defaults import CONTEXT_FORMATS, DEPENDENCIES_OUTPUT_FORMATS
 from .render import Jinja2TemplateRenderer
 
 # available log levels, adjusted with -v at command line
@@ -138,4 +138,27 @@ def render():
 
 def dependencies():
     """ CLI entry point for analyzing template dependencies. """
+    #version_info = (__version__, jinja2.__version__)
+    parser = argparse.ArgumentParser(
+        description='Analyze Jinja2 templates for dependencies.',
+        epilog='',
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter
+    )
+    p_input = parser.add_argument_group('input options')
+    p_output = parser.add_argument_group('output options')
+    p_output_mode = p_output.add_mutually_exclusive_group()
+    ### input options ###############################################
+    p_input.add_argument('templates', metavar='TEMPLATE', nargs='+',
+            type=argparse.FileType('r', encoding='utf-8'))
+    ### output options ##############################################
+    p_output.add_argument('-f', '--format',
+            default='make', choices=sorted(DEPENDENCIES_OUTPUT_FORMATS),
+            help='Specify output format for dependencies.')
+    p_output_mode.add_argument('-o', metavar='outfile', dest='output_file',
+            help="Output to a file instead of stdout.")
+    p_output_mode.add_argument('--per-file', action='store_true', dest='per_file',
+            help='Produce one output file per input file.')
+
+    args = parser.parse_args()
+    print(args)
     raise NotImplementedError("jj2dep has not yet been implemented.")
diff --git a/src/jj2cli/defaults.py b/src/jj2cli/defaults.py
index 8b62d11..69ec48b 100644
--- a/src/jj2cli/defaults.py
+++ b/src/jj2cli/defaults.py
@@ -33,3 +33,8 @@
 # Variables for parsing dataspecs.
 DATASPEC_SEP = ':'
 DATASPEC_COMPONENTS_MAX = 3
+
+# Supported formats for outputting template dependencies.
+DEPENDENCIES_OUTPUT_FORMATS = ['make', 'json', 'yaml', 'delim']
+if yaml_load is None:
+    DEPENDENCIES_OUTPUT_FORMATS.remove('yaml')