Requirements Refactor (ready to merge, after conflict resolution)

pipenv/core.py

@@ -25,8 +25,8 @@
 
 from .cmdparse import ScriptEmptyError
 from .project import Project, SourceNotFound
+from .vendor.requirementslib import Requirement
 from .utils import (
-    convert_deps_from_pip,
     convert_deps_to_pip,
     is_required_version,
     proper_case,
@@ -35,14 +35,12 @@
     merge_deps,
     venv_resolve_deps,
     escape_grouped_arguments,
-    is_vcs,
     python_version,
     find_windows_executable,
     prepare_pip_source_args,
     temp_environ,
     is_valid_url,
     download_file,
-    get_requirement,
     is_pinned,
     is_star,
     rmtree,
@@ -975,7 +973,7 @@ def get_downloads_info(names_map, section):
     p = project.parsed_pipfile
     for fname in os.listdir(project.download_location):
         # Get name from filename mapping.
-        name = list(convert_deps_from_pip(names_map[fname]))[0]
+        name = Requirement.from_line(names_map[fname]).name
         # Get the version info from the filenames.
         version = parse_download_fname(fname, name)
         # Get the hash of each file.
@@ -1242,14 +1240,12 @@ def do_purge(bare=False, downloads=False, allow_global=False, verbose=False):
     actually_installed = []
     for package in installed:
         try:
-            dep = convert_deps_from_pip(package)
+            dep = Requirement.from_line(package)
         except AssertionError:
             dep = None
-        if dep and not is_vcs(dep):
-            dep = [k for k in dep.keys()][0]
-            # TODO: make this smarter later.
-            if not dep.startswith('-e ') and not dep.startswith('git+'):
-                actually_installed.append(dep)
+        if dep and not dep.is_vcs and not dep.editable:
+            dep = dep.name
+            actually_installed.append(dep)
     if not bare:
         click.echo(
             u'Found {0} installed package(s), purging…'.format(
@@ -1414,7 +1410,7 @@ def pip_install(
             f.write(package_name)
     # Install dependencies when a package is a VCS dependency.
     try:
-        req = get_requirement(
+        req = Requirement.from_line(
             package_name.split('--hash')[0].split('--trusted-host')[0]
         ).vcs
     except (ParseException, ValueError) as e:
@@ -1711,7 +1707,8 @@ def do_outdated():
     )
     results = filter(bool, results)
     for result in results:
-        packages.update(convert_deps_from_pip(result))
+        dep = Requirement.from_line(result)
+        packages.update(dep.as_pipfile())
     updated_packages = {}
     lockfile = do_lock(write=False)
     for section in ('develop', 'default'):
@@ -1935,9 +1932,8 @@ def do_install(
     if selective_upgrade:
         for i, package_name in enumerate(package_names[:]):
             section = project.packages if not dev else project.dev_packages
-            package = convert_deps_from_pip(package_name)
-            package__name = list(package.keys())[0]
-            package__val = list(package.values())[0]
+            package = Requirement.from_line(package_name)
+            package__name, package__val = package.pipfile_entry
             try:
                 if not is_star(section[package__name]) and is_star(
                     package__val
@@ -1977,17 +1973,12 @@ def do_install(
             )
             # Warn if --editable wasn't passed.
             try:
-                converted = convert_deps_from_pip(package_name)
+                converted = Requirement.from_line(package_name)
             except ValueError as e:
                 click.echo('{0}: {1}'.format(crayons.red('WARNING'), e))
                 requirements_directory.cleanup()
                 sys.exit(1)
-            key = [k for k in converted.keys()][0]
-            if is_vcs(key) or is_vcs(converted[key]) and not converted[
-                key
-            ].get(
-                'editable'
-            ):
+            if converted.is_vcs and not converted.editable:
                 click.echo(
                     '{0}: You installed a VCS dependency in non–editable mode. '
                     'This will work fine, but sub-dependencies will not be resolved by {1}.'
@@ -2566,7 +2557,7 @@ def do_clean(
     )
     installed_package_names = []
     for installed in installed_packages:
-        r = get_requirement(installed)
+        r = Requirement.from_line(installed).requirement
         # Ignore editable installations.
         if not r.editable:
             installed_package_names.append(r.name.lower())

pipenv/patched/notpip/_internal/operations/prepare.py

@@ -151,7 +151,11 @@ def format_reqs(rs):
         else:
             self.req.build_env = NoOpBuildEnvironment(no_clean=False)
 
-        self.req.run_egg_info()
+        try:
+            self.req.run_egg_info()
+        except (OSError, TypeError):
+            self.req._correct_build_location()
+            self.req.run_egg_info()
         self.req.assert_source_matches_version()
 
 

pipenv/patched/piptools/repositories/pypi.py

@@ -302,7 +302,7 @@ def get_legacy_dependencies(self, ireq):
                     upgrade_strategy="to-satisfy-only",
                     force_reinstall=False,
                     ignore_dependencies=False,
-                    ignore_requires_python=False,
+                    ignore_requires_python=True,
                     ignore_installed=True,
                     isolated=False,
                     wheel_cache=self.wheel_cache,

pipenv/project.py

@@ -20,21 +20,22 @@
     from pathlib2 import Path
 
 from .cmdparse import Script
+from .vendor.requirementslib import Requirement
 from .utils import (
     atomic_open_for_write,
     mkdir_p,
     pep423_name,
     proper_case,
     find_requirements,
     is_editable,
-    is_file,
     is_vcs,
     cleanup_toml,
     is_installable_file,
     is_valid_url,
     normalize_drive,
     python_version,
     safe_expandvars,
+    is_star,
 )
 from .environments import (
     PIPENV_MAX_DEPTH,
@@ -45,6 +46,7 @@
     PIPENV_PYTHON,
     PIPENV_DEFAULT_PYTHON_VERSION,
 )
+from .vendor.first import first
 
 
 def _normalized(p):
@@ -723,28 +725,21 @@ def remove_package_from_pipfile(self, package_name, dev=False):
             self.write_toml(p)
 
     def add_package_to_pipfile(self, package_name, dev=False):
-        from .utils import convert_deps_from_pip
         # Read and append Pipfile.
         p = self.parsed_pipfile
         # Don't re-capitalize file URLs or VCSs.
-        converted = convert_deps_from_pip(package_name)
-        converted = converted[first(k for k in converted.keys())]
-        if not (
-            is_file(package_name) or is_vcs(converted) or 'path' in converted
-        ):
-            package_name = pep423_name(package_name)
+        package = Requirement.from_line(package_name)
+        converted = first(package.as_pipfile().values())
         key = 'dev-packages' if dev else 'packages'
         # Set empty group if it doesn't exist yet.
         if key not in p:
             p[key] = {}
-        package = convert_deps_from_pip(package_name)
-        package_name = first(k for k in package.keys())
-        name = self.get_package_name_in_pipfile(package_name, dev)
-        if name and converted == '*':
+        name = self.get_package_name_in_pipfile(package.name, dev)
+        if name and is_star(converted):
             # Skip for wildcard version
             return
         # Add the package to the group.
-        p[key][name or package_name] = package[package_name]
+        p[key][name or package.normalized_name] = converted
         # Write Pipfile.
         self.write_toml(p)