1 files changed, 122 insertions, 0 deletions
diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_file.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_file.py
new file mode 100644
index 0000000..c94e104
--- /dev/null
+++ b/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/req/req_file.py
@@ -0,0 +1,122 @@
+import os
+import re
+
+from pip.backwardcompat import urlparse
+from pip.download import PipSession, get_file_content
+from pip.req.req_install import InstallRequirement
+from pip.util import normalize_name
+
+_scheme_re = re.compile(r'^(http|https|file):', re.I)
+
+
+def parse_requirements(filename, finder=None, comes_from=None, options=None,
+                       session=None):
+    if session is None:
+        session = PipSession()
+
+    skip_match = None
+    skip_regex = options.skip_requirements_regex if options else None
+    if skip_regex:
+        skip_match = re.compile(skip_regex)
+    reqs_file_dir = os.path.dirname(os.path.abspath(filename))
+    filename, content = get_file_content(
+        filename,
+        comes_from=comes_from,
+        session=session,
+    )
+    for line_number, line in enumerate(content.splitlines()):
+        line_number += 1
+        line = line.strip()
+
+        # Remove comments from file
+        line = re.sub(r"(^|\s)#.*$", "", line)
+
+        if not line or line.startswith('#'):
+            continue
+        if skip_match and skip_match.search(line):
+            continue
+        if line.startswith('-r') or line.startswith('--requirement'):
+            if line.startswith('-r'):
+                req_url = line[2:].strip()
+            else:
+                req_url = line[len('--requirement'):].strip().strip('=')
+            if _scheme_re.search(filename):
+                # Relative to a URL
+                req_url = urlparse.urljoin(filename, req_url)
+            elif not _scheme_re.search(req_url):
+                req_url = os.path.join(os.path.dirname(filename), req_url)
+            for item in parse_requirements(
+                    req_url, finder,
+                    comes_from=filename,
+                    options=options,
+                    session=session):
+                yield item
+        elif line.startswith('-Z') or line.startswith('--always-unzip'):
+            # No longer used, but previously these were used in
+            # requirement files, so we'll ignore.
+            pass
+        elif line.startswith('-f') or line.startswith('--find-links'):
+            if line.startswith('-f'):
+                line = line[2:].strip()
+            else:
+                line = line[len('--find-links'):].strip().lstrip('=')
+            # FIXME: it would be nice to keep track of the source of
+            # the find_links:
+            # support a find-links local path relative to a requirements file
+            relative_to_reqs_file = os.path.join(reqs_file_dir, line)
+            if os.path.exists(relative_to_reqs_file):
+                line = relative_to_reqs_file
+            if finder:
+                finder.find_links.append(line)
+        elif line.startswith('-i') or line.startswith('--index-url'):
+            if line.startswith('-i'):
+                line = line[2:].strip()
+            else:
+                line = line[len('--index-url'):].strip().lstrip('=')
+            if finder:
+                finder.index_urls = [line]
+        elif line.startswith('--extra-index-url'):
+            line = line[len('--extra-index-url'):].strip().lstrip('=')
+            if finder:
+                finder.index_urls.append(line)
+        elif line.startswith('--use-wheel'):
+            finder.use_wheel = True
+        elif line.startswith('--no-index'):
+            finder.index_urls = []
+        elif line.startswith("--allow-external"):
+            line = line[len("--allow-external"):].strip().lstrip("=")
+            finder.allow_external |= set([normalize_name(line).lower()])
+        elif line.startswith("--allow-all-external"):
+            finder.allow_all_external = True
+        # Remove in 1.7
+        elif line.startswith("--no-allow-external"):
+            pass
+        # Remove in 1.7
+        elif line.startswith("--no-allow-insecure"):
+            pass
+        # Remove after 1.7
+        elif line.startswith("--allow-insecure"):
+            line = line[len("--allow-insecure"):].strip().lstrip("=")
+            finder.allow_unverified |= set([normalize_name(line).lower()])
+        elif line.startswith("--allow-unverified"):
+            line = line[len("--allow-unverified"):].strip().lstrip("=")
+            finder.allow_unverified |= set([normalize_name(line).lower()])
+        else:
+            comes_from = '-r %s (line %s)' % (filename, line_number)
+            if line.startswith('-e') or line.startswith('--editable'):
+                if line.startswith('-e'):
+                    line = line[2:].strip()
+                else:
+                    line = line[len('--editable'):].strip().lstrip('=')
+                req = InstallRequirement.from_editable(
+                    line,
+                    comes_from=comes_from,
+                    default_vcs=options.default_vcs if options else None
+                )
+            else:
+                req = InstallRequirement.from_line(
+                    line,
+                    comes_from,
+                    prereleases=getattr(options, "pre", None)
+                )
+            yield req