Bump poetry from 1.8.5 to 2.0.1 (#1734)

* Bump poetry from 1.8.5 to 2.0.1

Bumps [poetry](https://github.com/python-poetry/poetry) from 1.8.5 to 2.0.1.
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/main/CHANGELOG.md)
- [Commits](python-poetry/poetry@1.8.5...2.0.1)

---
updated-dependencies:
- dependency-name: poetry
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

* Switch to `poetry sync`

Since `poetry install --sync` has been deprecated in favour of the
new `poetry sync` command.

* Switch one fixture to using the `[project]` table

So we have coverage of both the old and new style dependency
table syntax.

* Revert "Switch one fixture to using the `[project]` table"

This reverts commit a0bb951.

Since the `poetry_basic` fixture is also used for the old buildpack version
test, and so fails when the Poetry 1.x version in the old buildpack can't
read the Poetry v2 lockfile.

We can land this later, once a historic buildpack version exists that
uses a Poetry 2.x release.

* Add changelog entry

* Update test log output for new version

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ed Morley <[email protected]>

Author: dependabot[bot]

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## [Unreleased]
 
+- Updated Poetry from 1.8.5 to 2.0.1. ([#1734](https://github.com/heroku/heroku-buildpack-python/pull/1734))
 
 ## [v274] - 2025-01-08
 

lib/poetry.sh

@@ -99,8 +99,8 @@ function poetry::install_poetry() {
 
 # Note: We cache site-packages since:
 # - It results in faster builds than only caching Poetry's download/wheel cache.
-# - It's safe to do so, since `poetry install --sync` fully manages the environment
-#   (including e.g. uninstalling packages when they are removed from the lockfile).
+# - It's safe to do so, since `poetry sync` fully manages the environment (including
+#   e.g. uninstalling packages when they are removed from the lockfile).
 #
 # With site-packages cached there is no need to persist Poetry's download/wheel cache in the build
 # cache, so we let Poetry write it to the home directory where it will be discarded at the end of
@@ -109,8 +109,7 @@ function poetry::install_poetry() {
 function poetry::install_dependencies() {
 	local poetry_install_command=(
 		poetry
-		install
-		--sync
+		sync
 	)
 
 	# On Heroku CI, all default Poetry dependency groups are installed (i.e. all groups minus those

requirements/poetry.txt

@@ -1 +1 @@
-poetry==1.8.5
+poetry==2.0.1

spec/hatchet/ci_spec.rb

@@ -161,7 +161,7 @@
           -----> Using Python #{DEFAULT_PYTHON_MAJOR_VERSION} specified in .python-version
           -----> Installing Python #{DEFAULT_PYTHON_FULL_VERSION}
           -----> Installing Poetry #{POETRY_VERSION}
-          -----> Installing dependencies using 'poetry install --sync'
+          -----> Installing dependencies using 'poetry sync'
                  Installing dependencies from lock file
                  
                  Package operations: 5 installs, 0 updates, 0 removals
@@ -223,7 +223,7 @@
           -----> Restoring cache
           -----> Using cached install of Python #{DEFAULT_PYTHON_FULL_VERSION}
           -----> Installing Poetry #{POETRY_VERSION}
-          -----> Installing dependencies using 'poetry install --sync'
+          -----> Installing dependencies using 'poetry sync'
                  Installing dependencies from lock file
                  
                  No dependencies to install or update

spec/hatchet/poetry_spec.rb

@@ -14,7 +14,7 @@
           remote: -----> Using Python #{DEFAULT_PYTHON_MAJOR_VERSION} specified in .python-version
           remote: -----> Installing Python #{DEFAULT_PYTHON_FULL_VERSION}
           remote: -----> Installing Poetry #{POETRY_VERSION}
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
           remote:        Package operations: 1 install, 0 updates, 0 removals
@@ -51,7 +51,7 @@
           remote: -----> Restoring cache
           remote: -----> Using cached install of Python #{DEFAULT_PYTHON_FULL_VERSION}
           remote: -----> Using cached Poetry #{POETRY_VERSION}
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
           remote:        No dependencies to install or update
@@ -78,7 +78,7 @@
           remote:        - The Poetry version has changed from 1.8.4 to #{POETRY_VERSION}
           remote: -----> Installing Python #{LATEST_PYTHON_3_13}
           remote: -----> Installing Poetry #{POETRY_VERSION}
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
           remote:        Package operations: 1 install, 0 updates, 0 removals
@@ -107,7 +107,7 @@
           remote:        - The package manager has changed from pip to poetry
           remote: -----> Installing Python #{DEFAULT_PYTHON_FULL_VERSION}
           remote: -----> Installing Poetry #{POETRY_VERSION}
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
           remote:        Package operations: 1 install, 0 updates, 0 removals
@@ -221,7 +221,7 @@
           remote:  !     See: https://devcenter.heroku.com/articles/python-runtimes
           remote: 
           remote: -----> Installing Poetry #{POETRY_VERSION}
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
           remote:        Package operations: 1 install, 0 updates, 0 removals
@@ -240,10 +240,10 @@
     it 'fails the build' do
       app.deploy do |app|
         expect(clean_output(app.output)).to include(<<~OUTPUT)
-          remote: -----> Installing dependencies using 'poetry install --sync --only main'
+          remote: -----> Installing dependencies using 'poetry sync --only main'
           remote:        Installing dependencies from lock file
           remote:        
-          remote:        pyproject.toml changed significantly since poetry.lock was last generated. Run `poetry lock [--no-update]` to fix the lock file.
+          remote:        pyproject.toml changed significantly since poetry.lock was last generated. Run `poetry lock` to fix the lock file.
           remote: 
           remote:  !     Error: Unable to install dependencies using Poetry.
           remote:  !