Update README

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Added support for specifying the `platform` for dependencies.
 - Added the `--python` option to the `add` command.
 - Added the `--platform` option to the `add` command.
+- Added a `--develop` option to the install command to install path dependencies in development/editable mode.
 
 ### Changed
 

poetry/console/commands/install.py

@@ -10,6 +10,7 @@ class InstallCommand(VenvCommand):
         { --dry-run : Outputs the operations but will not execute anything
                       (implicitly enables --verbose). }
         { --E|extras=* : Extra sets of dependencies to install. }
+        { --develop=* : Install given packages in development mode. }
     """
 
     help = """The <info>install</info> command reads the <comment>pyproject.toml</> file from
@@ -37,6 +38,7 @@ exist it will look for <comment>pyproject.toml</> and do the same.
 
         installer.extras(self.option('extras'))
         installer.dev_mode(not self.option('no-dev'))
+        installer.develop(self.option('develop'))
         installer.dry_run(self.option('dry-run'))
         installer.verbose(self.option('verbose'))
 

poetry/installation/installer.py

@@ -44,6 +44,7 @@ class Installer:
         self._verbose = False
         self._write_lock = True
         self._dev_mode = True
+        self._develop = []
         self._execute_operations = True
 
         self._whitelist = {}
@@ -99,6 +100,11 @@ class Installer:
     def is_dev_mode(self):  # type: () -> bool
         return self._dev_mode
 
+    def develop(self, packages):  # type: (dict) -> Installer
+        self._develop = [canonicalize_name(p) for p in packages]
+
+        return self
+
     def update(self, update=True):  # type: (bool) -> Installer
         self._update = update
 
@@ -404,13 +410,16 @@ class Installer:
                             installed, locked
                         ))
 
-            if not is_installed:
             # If it's optional and not in required extras
             # we do not install
             if locked.optional and locked.name not in extra_packages:
                 continue
 
-                ops.append(Install(locked))
+            op = Install(locked)
+            if is_installed:
+                op.skip('Already installed')
+
+            ops.append(op)
 
         return ops
 
@@ -429,6 +438,11 @@ class Installer:
             if op.job_type == 'uninstall':
                 continue
 
+            if package.name in self._develop and package.source_type == 'directory':
+                package.develop = True
+                if op.skipped:
+                    op.unskip()
+
             python = Version.parse('.'.join([str(i) for i in self._venv.version_info[:3]]))
             if 'python' in package.requirements:
                 python_constraint = parse_constraint(

poetry/installation/pip_installer.py

@@ -39,7 +39,11 @@ class PipInstaller(BaseInstaller):
             finally:
                 os.unlink(req)
         else:
-            args.append(self.requirement(package))
+            req = self.requirement(package)
+            if not isinstance(req, list):
+                args.append(req)
+            else:
+                args += req
 
             self.run(*args)
 
@@ -69,7 +73,15 @@ class PipInstaller(BaseInstaller):
             return req
 
         if package.source_type in ['file', 'directory']:
-            return os.path.realpath(package.source_reference)
+            if package.root_dir:
+                req = os.path.join(package.root_dir, package.source_url)
+            else:
+                req = os.path.realpath(package.source_url)
+
+            if package.develop:
+                req = ['-e', req]
+
+            return req
 
         if package.source_type == 'git':
             return 'git+{}@{}#egg={}'.format(

poetry/json/schemas/poetry-schema.json

@@ -307,6 +307,10 @@
                     "items": {
                         "type": "string"
                     }
+                },
+                "develop": {
+                    "type": "boolean",
+                    "description": "Whether to install the dependency in development mode."
                 }
             }
         },

poetry/packages/directory_dependency.py

@@ -34,6 +34,7 @@ class DirectoryDependency(Dependency):
                  develop=False     # type: bool
                  ):
         from . import dependency_from_pep_508
+        from .package import Package
 
         self._path = path
         self._base = base
@@ -79,9 +80,13 @@ class DirectoryDependency(Dependency):
             with setup.open('w') as f:
                 f.write(decode(builder.build_setup()))
 
-            self._package = poetry.package
+            package = poetry.package
+            self._package = Package(package.pretty_name, package.version)
+            self._package.requires += package.requires
+            self._package.dev_requires += package.dev_requires
+            self._package.python_versions = package.python_versions
+            self._package.platform = package.platform
         else:
-            from poetry.packages import Package
             # Execute egg_info
             current_dir = os.getcwd()
             os.chdir(str(self._full_path))
@@ -129,7 +134,7 @@ class DirectoryDependency(Dependency):
             self._package = package
 
         self._package.source_type = 'directory'
-        self._package.source_reference = str(self._path)
+        self._package.source_url = str(self._path)
 
         super(DirectoryDependency, self).__init__(
             self._package.name,

poetry/packages/package.py

@@ -94,6 +94,8 @@ class Package(object):
 
         self.root_dir = None
 
+        self.develop = False
+
     @property
     def name(self):
         return self._name

poetry/puzzle/operations/operation.py

@@ -35,3 +35,9 @@ class Operation(object):
         self._skip_reason = reason
 
         return self
+
+    def unskip(self):  # type: () -> Operation
+        self._skipped = False
+        self._skip_reason = None
+
+        return self

poetry/puzzle/provider.py

@@ -238,7 +238,7 @@ class Provider:
                         ):  # type: (FileDependency) -> List[Package]
         package = Package(dependency.name, dependency.pretty_constraint)
         package.source_type = 'file'
-        package.source_reference = str(dependency.path)
+        package.source_url = str(dependency.path)
 
         package.description = dependency.metadata.summary
         for req in dependency.metadata.requires_dist:

tests/installation/fixtures/with-directory-dependency.test

@@ -18,8 +18,8 @@ platform = "*"
 
 [package.source]
 type = "directory"
-reference = "tests/fixtures/project_with_setup"
-url = ""
+reference = ""
+url = "tests/fixtures/project_with_setup"
 
 [package.dependencies]
 cachy = ">=0.2.0"

tests/installation/fixtures/with-file-dependency.test

@@ -9,8 +9,8 @@ platform = "*"
 
 [package.source]
 type = "file"
-reference = "tests/fixtures/distributions/demo-0.1.0-py2.py3-none-any.whl"
-url = ""
+reference = ""
+url = "tests/fixtures/distributions/demo-0.1.0-py2.py3-none-any.whl"
 
 [package.dependencies]
 pendulum = ">=1.4.0.0,<2.0.0.0"