add root-only install option

python-poetry · Feb 9, 2021 · 2bb0cc5 · 2bb0cc5
1 parent cddd675
commit 2bb0cc5
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Showing 3 changed files with 40 additions and 18 deletions.
diff --git a/docs/docs/basic-usage.md b/docs/docs/basic-usage.md
@@ -203,6 +203,15 @@ If you want to install the dependencies only, run the `install` command with the
 poetry install --no-root
 ```
 
+### Installing root package only
+
+If you want to install the current project only, without resolving any
+dependencies, run the `install` command with the `--root-only` flag:
+
+```bash
+poetry install --root-only
+```
+
 ## Updating dependencies to their latest versions
 
 As mentioned above, the `poetry.lock` file prevents you from automatically getting the latest versions

diff --git a/docs/docs/cli.md b/docs/docs/cli.md
@@ -152,11 +152,20 @@ poetry install --no-root
 Installation of your project's package is also skipped when the `--dev-only`
 option is passed.
 
+
+If you only want to install your project's package, without resolving any
+dependencies, use the `--root-only` option.
+
+```bash
+poetry install --root-only
+```
+
 ### Options
 
 * `--no-dev`: Do not install dev dependencies.
 * `--dev-only`: Only install dev dependencies.
 * `--no-root`: Do not install the root package (your project).
+* `--root-only`: Only install the root package (your project).
 * `--dry-run`: Output the operations but do not execute anything (implicitly enables --verbose).
 * `--remove-untracked`: Remove dependencies not presented in the lock file
 * `--extras (-E)`: Features to install (multiple values allowed).

diff --git a/poetry/console/commands/install.py b/poetry/console/commands/install.py
@@ -14,6 +14,9 @@ class InstallCommand(InstallerCommand):
         option(
             "no-root", None, "Do not install the root package (the current project)."
         ),
+        option(
+            "root-only", None, "Only install the root package (the current project)."
+        ),
         option(
             "dry-run",
             None,
@@ -54,28 +57,29 @@ def handle(self) -> int:
         from poetry.core.masonry.utils.module import ModuleOrPackageNotFound
         from poetry.masonry.builders import EditableBuilder
 
-        self._installer.use_executor(
-            self.poetry.config.get("experimental.new-installer", False)
-        )
+        if not self.option("root-only"):
+            self._installer.use_executor(
+                self.poetry.config.get("experimental.new-installer", False)
+            )
 
-        extras = []
-        for extra in self.option("extras"):
-            if " " in extra:
-                extras += [e.strip() for e in extra.split(" ")]
-            else:
-                extras.append(extra)
+            extras = []
+            for extra in self.option("extras"):
+                if " " in extra:
+                    extras += [e.strip() for e in extra.split(" ")]
+                else:
+                    extras.append(extra)
 
-        self._installer.extras(extras)
-        self._installer.dev_mode(not self.option("no-dev"))
-        self._installer.dev_only(self.option("dev-only"))
-        self._installer.dry_run(self.option("dry-run"))
-        self._installer.remove_untracked(self.option("remove-untracked"))
-        self._installer.verbose(self._io.is_verbose())
+            self._installer.extras(extras)
+            self._installer.dev_mode(not self.option("no-dev"))
+            self._installer.dev_only(self.option("dev-only"))
+            self._installer.dry_run(self.option("dry-run"))
+            self._installer.remove_untracked(self.option("remove-untracked"))
+            self._installer.verbose(self._io.is_verbose())
 
-        return_code = self._installer.run()
+            return_code = self._installer.run()
 
-        if return_code != 0:
-            return return_code
+            if return_code != 0:
+                return return_code
 
         if self.option("no-root") or self.option("dev-only"):
             return 0