Install: option to skip current project package

README.md

@@ -339,9 +339,28 @@ poetry install --extras "mysql pgsql"
 poetry install -E mysql -E pgsql
 ```
 
+By default `poetry` will install your project's package everytime you run `install`:
+
+```bash
+$ poetry install
+Installing dependencies from lock file
+
+Nothing to install or update
+
+  - Installing <your-package-name> (x.x.x)
+
+```
+
+If you want to skip this installation, use the `--no-root` option.
+
+```bash
+poetry install --no-root
+```
+
 #### Options
 
 * `--no-dev`: Do not install dev dependencies.
+* `--no-root`: Do not install the root package (your project).
 * `-E|--extras`: Features to install (multiple values allowed).
 
 ### update

docs/docs/cli.md

@@ -124,9 +124,28 @@ poetry install --extras "mysql pgsql"
 poetry install -E mysql -E pgsql
 ```
 
+By default `poetry` will install your project's package everytime you run `install`:
+
+```bash
+$ poetry install
+Installing dependencies from lock file
+
+Nothing to install or update
+
+  - Installing <your-package-name> (x.x.x)
+
+```
+
+If you want to skip this installation, use the `--no-root` option.
+
+```bash
+poetry install --no-root
+```
+
 ### Options
 
 * `--no-dev`: Do not install dev dependencies.
+* `--no-root`: Do not install the root package (your project).
 * `--extras (-E)`: Features to install (multiple values allowed).
 
 ## update

poetry/console/commands/install.py

@@ -9,6 +9,7 @@ class InstallCommand(EnvCommand):
 
     install
         { --no-dev : Do not install dev dependencies. }
+        { --no-root : Do not install the root package (your project). }
         { --dry-run : Outputs the operations but will not execute anything
                       (implicitly enables --verbose). }
         { --E|extras=* : Extra sets of dependencies to install. }
@@ -46,6 +47,7 @@ def handle(self):
 
         installer.extras(extras)
         installer.dev_mode(not self.option("no-dev"))
+        installer.install_root(not self.option("no-root"))
         installer.develop(self.option("develop"))
         installer.dry_run(self.option("dry-run"))
         installer.verbose(self.option("verbose"))
@@ -63,13 +65,14 @@ def handle(self):
             # If this is a true error it will be picked up later by build anyway.
             return 0
 
-        self.line(
-            "  - Installing <info>{}</info> (<comment>{}</comment>)".format(
-                self.poetry.package.pretty_name, self.poetry.package.pretty_version
+        if not self.option("no-root"):
+            self.line(
+                "  - Installing <info>{}</info> (<comment>{}</comment>)".format(
+                    self.poetry.package.pretty_name, self.poetry.package.pretty_version
+                )
             )
-        )
 
-        if self.option("dry-run"):
+        if self.option("dry-run") or self.option("no-root"):
             return 0
 
         setup = self.poetry.file.parent / "setup.py"

poetry/installation/installer.py

@@ -38,6 +38,7 @@ def __init__(
         self._locker = locker
         self._pool = pool
 
+        self._install_root = True
         self._dry_run = False
         self._update = False
         self._verbose = False
@@ -75,6 +76,14 @@ def run(self):
 
         return 0
 
+    def install_root(self, install_root=True):  # type: (bool) -> Installer
+        self._install_root = install_root
+
+        return self
+
+    def is_install_root(self):  # type: () -> bool
+        return self._install_root
+
     def dry_run(self, dry_run=True):  # type: (bool) -> Installer
         self._dry_run = dry_run