From eb5d52e6517a2a3ae427e9458d0cdf49b27bb084 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Fri, 24 Apr 2026 23:19:21 +0300
Subject: [PATCH 01/10] Isolate package build and publish

---
 .github/workflows/publish.yml | 111 ++++++++++++++++++++++------------
 1 file changed, 73 insertions(+), 38 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3348356..bf233b8 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,6 +1,6 @@
 # This workflow is triggered two ways:
 #
-# 1. When a tag is created, the workflow will upload the package to
+# 1. When a commit is made, the workflow will upload the package to
 #    test.pypi.org.
 # 2. When a release is made, the workflow will upload the package to pypi.org.
 #
@@ -9,49 +9,84 @@
 name: Upload package
 
 on:
-  release:
-    types: [created]
   push:
-    tags:
-      - '*'
+  pull_request:
+  release:
+    types:
+      - published
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+env:
+  FORCE_COLOR: 1
 
 jobs:
-  deploy:
+  # Always build & lint package.
+  build-package:
+    name: Build & verify package
     runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - uses: hynek/build-and-inspect-python-package@fe0a0fb1925ca263d076ca4f2c13e93a6e92a33e # v2.17.0
+
+  # Publish to Test PyPI on every commit on main.
+  release-test-pypi:
+    name: Publish in-dev package to test.pypi.org
+    if: |
+      github.repository_owner == 'python'
+      && github.event_name == 'push'
+      && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    needs: build-package
+
+    permissions:
+      id-token: write
+
+    steps:
+      - name: Download packages built by build-and-inspect-python-package
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: dist
+
+      - name: Publish to Test PyPI
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
+        with:
+          repository-url: https://test.pypi.org/legacy/
+
+  # Publish to PyPI on GitHub Releases.
+  release-pypi:
+    name: Publish to PyPI
+    # Only run for published releases.
+    if: |
+      github.repository_owner == 'python'
+      && github.event.action == 'published'
+    runs-on: ubuntu-latest
+    needs: build-package
+
     environment:
       name: release
-      url: https://pypi.org/p/tzdata
+      url: >-
+        https://pypi.org/project/tzdata/${{
+          github.event.release.tag_name
+        }}
+
     permissions:
       id-token: write
+
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      with:
-        persist-credentials: false
-    - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install -U tox
-    - name: Create tox environments
-      run: |
-        tox -p -e py,build --notest
-    - name: Run tests
-      run: |
-        tox -e py
-    - name: Build package
-      run: |
-        tox -e build
-    - name: Publish package (TestPyPI)
-      if: github.event_name == 'push'
-      uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
-      with:
-        repository-url: https://test.pypi.org/legacy/
-        verbose: true
-    - name: Publish package
-      if: github.event_name == 'release'
-      uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
-      with:
-        verbose: true
+      - name: Download packages built by build-and-inspect-python-package
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: dist
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0

From 623a92bab8bfeacdb2dfc0e965db7133b9a9bdea Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Fri, 24 Apr 2026 23:20:54 +0300
Subject: [PATCH 02/10] Remove old tox publishing env

---
 .github/workflows/tests.yml |  2 +-
 tox.ini                     | 12 ------------
 2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 20eb70c..21891b1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -50,7 +50,7 @@ jobs:
     runs-on: "ubuntu-latest"
     strategy:
       matrix:
-        toxenv: ["build", "precommit", "typing", "docs"]
+        toxenv: ["precommit", "typing", "docs"]
     env:
       TOXENV: ${{ matrix.toxenv }}
 
diff --git a/tox.ini b/tox.ini
index 83e7708..fe186b4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -70,15 +70,3 @@ deps =
 commands =
     sphinx-build -d "{toxworkdir}/docs_doctree" "{toxinidir}/docs" \
                     "{toxinidir}/docs/_output" {posargs: -j auto --color -bhtml}
-
-[testenv:build]
-description = Build a wheel and source distribution
-skip_install = True
-deps =
-    build
-    twine
-commands =
-    python -c "from pathlib import Path; \
-               [x.unlink(missing_ok=True) for x in Path('{toxinidir}/dist').glob('*')]"
-    python -m build -o {toxinidir}/dist {toxinidir}
-    twine check {toxinidir}/dist/*

From 8308d1dccebb4d5ce80c0d7500be550e33710c1d Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Fri, 24 Apr 2026 23:29:27 +0300
Subject: [PATCH 03/10] Ignore pre-existing 'W002: Wheel contains duplicate
 files'

---
 pyproject.toml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index aaf3b62..e3526d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,9 @@
 requires = ["setuptools>=40.8.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
+[tool.check-wheel-contents]
+ignore = ["W002"]
+
 [tool.isort]
 atomic=true
 force_grid_wrap=0

From b015568416464ea8502b46cad0bf4af59ece8dec Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Sat, 25 Apr 2026 18:41:50 +0300
Subject: [PATCH 04/10] Remove redundant lines

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
---
 .github/workflows/publish.yml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index bf233b8..19c1121 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -23,7 +23,6 @@ env:
   FORCE_COLOR: 1
 
 jobs:
-  # Always build & lint package.
   build-package:
     name: Build & verify package
     runs-on: ubuntu-latest
@@ -31,7 +30,6 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
-          fetch-depth: 0
           persist-credentials: false
 
       - uses: hynek/build-and-inspect-python-package@fe0a0fb1925ca263d076ca4f2c13e93a6e92a33e # v2.17.0
@@ -61,7 +59,6 @@ jobs:
         with:
           repository-url: https://test.pypi.org/legacy/
 
-  # Publish to PyPI on GitHub Releases.
   release-pypi:
     name: Publish to PyPI
     # Only run for published releases.

From a698e2c110ecd0535b8637abf9e6fc5c86d081f1 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 19:19:48 +0300
Subject: [PATCH 05/10] Only publish to Test PyPI for tags

---
 .github/workflows/publish.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 19c1121..a820b28 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,6 +1,6 @@
 # This workflow is triggered two ways:
 #
-# 1. When a commit is made, the workflow will upload the package to
+# 1. When a tag is created, the workflow will upload the package to
 #    test.pypi.org.
 # 2. When a release is made, the workflow will upload the package to pypi.org.
 #
@@ -34,13 +34,13 @@ jobs:
 
       - uses: hynek/build-and-inspect-python-package@fe0a0fb1925ca263d076ca4f2c13e93a6e92a33e # v2.17.0
 
-  # Publish to Test PyPI on every commit on main.
+  # Publish to Test PyPI for every tag.
   release-test-pypi:
     name: Publish in-dev package to test.pypi.org
     if: |
       github.repository_owner == 'python'
       && github.event_name == 'push'
-      && github.ref == 'refs/heads/main'
+      && startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
     needs: build-package
 

From 62738d52915dea09b8895a070527d9c552e4a95f Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 21:06:37 +0300
Subject: [PATCH 06/10] Add extra test gate between package build and publish

---
 .github/workflows/publish.yml | 9 +++++++--
 .github/workflows/tests.yml   | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index a820b28..ff13208 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -34,6 +34,11 @@ jobs:
 
       - uses: hynek/build-and-inspect-python-package@fe0a0fb1925ca263d076ca4f2c13e93a6e92a33e # v2.17.0
 
+  test-package:
+    name: Test package
+    needs: build-package
+    uses: ./.github/workflows/tests.yml
+
   # Publish to Test PyPI for every tag.
   release-test-pypi:
     name: Publish in-dev package to test.pypi.org
@@ -42,7 +47,7 @@ jobs:
       && github.event_name == 'push'
       && startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
-    needs: build-package
+    needs: test-package
 
     permissions:
       id-token: write
@@ -66,7 +71,7 @@ jobs:
       github.repository_owner == 'python'
       && github.event.action == 'published'
     runs-on: ubuntu-latest
-    needs: build-package
+    needs: test-package
 
     environment:
       name: release
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 21891b1..842e181 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,6 +5,7 @@ on:
     branches:
       - master
   pull_request:
+  workflow_call:
   workflow_dispatch:
 
 permissions: {}

From 4ff4adace966f546679ab76fab36300e4c401dab Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 21:09:08 +0300
Subject: [PATCH 07/10] Only trigger test gate when publishing

---
 .github/workflows/publish.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index ff13208..5daa25b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -36,6 +36,12 @@ jobs:
 
   test-package:
     name: Test package
+    if: |
+      github.repository_owner == 'python'
+      && (
+        (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/'))
+        || github.event.action == 'published'
+      )
     needs: build-package
     uses: ./.github/workflows/tests.yml
 

From 82f97d9eab375b2078edfd4b3b8bc1e9ec69105c Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 21:10:11 +0300
Subject: [PATCH 08/10] Refactor

---
 .github/workflows/publish.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5daa25b..c5ae4fc 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -37,7 +37,7 @@ jobs:
   test-package:
     name: Test package
     if: |
-      github.repository_owner == 'python'
+      github.event.repository.fork == false
       && (
         (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/'))
         || github.event.action == 'published'
@@ -49,7 +49,7 @@ jobs:
   release-test-pypi:
     name: Publish in-dev package to test.pypi.org
     if: |
-      github.repository_owner == 'python'
+      github.event.repository.fork == false
       && github.event_name == 'push'
       && startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
@@ -74,7 +74,7 @@ jobs:
     name: Publish to PyPI
     # Only run for published releases.
     if: |
-      github.repository_owner == 'python'
+      github.event.repository.fork == false
       && github.event.action == 'published'
     runs-on: ubuntu-latest
     needs: test-package

From b6c1d131a3479e33e6d51e1e70c603493d3436d1 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 21:44:37 +0300
Subject: [PATCH 09/10] Update comments

Co-authored-by: Stan Ulbrych <stan@python.org>
---
 .github/workflows/publish.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index c5ae4fc..cc1cb15 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -45,9 +45,9 @@ jobs:
     needs: build-package
     uses: ./.github/workflows/tests.yml
 
-  # Publish to Test PyPI for every tag.
+  # Publish to TestPyPI for every tag.
   release-test-pypi:
-    name: Publish in-dev package to test.pypi.org
+    name: Publish to TestPyPI
     if: |
       github.event.repository.fork == false
       && github.event_name == 'push'

From 1f8b90ba17ae6a6b675228ee7a6bb732dc612710 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 28 Apr 2026 21:53:02 +0300
Subject: [PATCH 10/10] Add comment about W002

Co-authored-by: Stan Ulbrych <stan@python.org>
---
 pyproject.toml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index e3526d8..7f6be2a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,6 +3,9 @@ requires = ["setuptools>=40.8.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.check-wheel-contents]
+# The wheel contains duplicate files.
+# This is by design, see https://github.com/eggert/tz/blob/main/backward
+# Let's ignore the warning:
 ignore = ["W002"]
 
 [tool.isort]