add parser file for building

build/__init__.py

@@ -1,5 +1,7 @@
 from .build import build
+from .build_parser import parse_and_build
 
 __all__ = [
-    'build'
+    'build',
+    'parse_and_build'
 ]

build/build_parser.py

@@ -0,0 +1,99 @@
+import argparse
+import pathlib
+
+from PyTeX.config import FILENAME_TYPE_PREPEND_AUTHOR, FILENAME_TYPE_RAW_NAME
+
+from .build import build
+
+
+def parse_and_build(arglist: [str]):
+    parser = argparse.ArgumentParser(description='Incrementally build LatexPackages with PyTeX')
+    input_group = parser.add_mutually_exclusive_group(required=True)
+    input_group.add_argument(
+        '-s', '--source-dir',
+        metavar='SRC_DIR',
+        help='Relative or absolute path to source directory of .pysty or .pycls files',
+        type=pathlib.Path,
+        nargs='?',
+        default='./src',
+        dest='src_dir'
+    )
+    parser.add_argument(
+        '-b', '--build-dir',
+        metavar='BUILD_DIR',
+        help='Relativ or absolute path to output directory for processed packages and classes',
+        type=pathlib.Path,
+        nargs='?',
+        default='./build',
+        dest='build_dir'
+    )
+    parser.add_argument(
+        '-r', '--recursive',
+        help='Recursively search subdirectories for files. Default: false',
+        action='store_true',
+        dest='recursive'
+    )
+    input_group.add_argument(
+        '-i', '--input-file',
+        metavar='FILE',
+        help='Filename to be built. Can be in valid .pysty or .pycls format',
+        type=pathlib.Path,
+        dest='input_file'
+    )
+    parser.add_argument(
+        '-n', '--name',
+        help='Name of the package / class to be formatted.',
+        type=str,
+        choices=[FILENAME_TYPE_RAW_NAME, FILENAME_TYPE_PREPEND_AUTHOR],
+        default=FILENAME_TYPE_PREPEND_AUTHOR,
+        dest='latex_name'
+    )
+    parser.add_argument(
+        '-g', '--git-version',
+        help='Insert git version information into build. This assumes your input'
+             'files are located in a git repository. Default: false',
+        action='store_true',
+        dest='use_git'
+    )
+    parser.add_argument(
+        '-d', '--allow-dirty',
+        help='If git flag is set, allow building of a dirty repo. Default: false',
+        action='store_true',
+        dest='allow_dirty'
+    )
+    parser.add_argument(
+        '-p',
+        '--pytex-version',
+        help='Write PyTeX version information into built LaTeX files',
+        action='store_true',
+        dest='include_pytex_version'
+    )
+    parser.add_argument(
+        '-t', '--build-time',
+        help='Insert build time into built LaTeX files',
+        action='store_true',
+        dest='include_timestamp'
+    )
+    parser.add_argument(
+        '-l', '--license',
+        help='Insert MIT license into package header',
+        action='store_true',
+        dest='include_license'
+    )
+    parser.add_argument(
+        '-a', '--author',
+        help='Set author of packages',
+        type=str,
+        dest='author'
+    )
+    parser.add_argument(
+        '-f', '--force',
+        help='Overwrite unknown existing files without confirmation',
+        action='store_true',
+        dest='overwrite_existing_files'
+    )
+    args = vars(parser.parse_args(arglist))
+    for arg in args.keys():
+        if type(args[arg]) == pathlib.PosixPath:
+            args[arg] = args[arg].resolve()
+    build(**args)