Move effect of "set -x" into default shell command

This also adds "--noprofile --norc" to the Cygwin shell command
as a speed optimization (bash doesn't need to source its scripts).
That only changes the Cygwin workflow; in the Ubuntu workflow,
"--noprofile --norc" had already been included by default when no
shell was specified, so having it there is to *keep* the optimized
behavior that was already in use.

.github/workflows/cygwin-test.yml

@@ -14,7 +14,7 @@ jobs:
       TEMP: "/tmp"
     defaults:
       run:
-        shell: bash.exe -eo pipefail -o igncr "{0}"
+        shell: bash.exe --noprofile --norc -exo pipefail -o igncr "{0}"
 
     steps:
     - name: Force LF line endings
@@ -31,23 +31,19 @@ jobs:
 
     - name: Show python and git versions
       run: |
-        set -x
         /usr/bin/python --version
         /usr/bin/git version
 
     - name: Tell git to trust this repo
       run: |
-          /usr/bin/git config --global --add safe.directory "$(pwd)"
+        /usr/bin/git config --global --add safe.directory "$(pwd)"
 
     - name: Prepare this repo for tests
       run: |
-        set -x
         TRAVIS=yes ./init-tests-after-clone.sh
 
     - name: Further prepare git configuration for tests
       run: |
-        set -x
-
         /usr/bin/git config --global user.email "travis@ci.com"
         /usr/bin/git config --global user.name "Travis Runner"
         # If we rewrite the user's config by accident, we will mess it up
@@ -56,14 +52,13 @@ jobs:
 
     - name: Update PyPA packages
       run: |
-        set -x
         /usr/bin/python -m pip install --upgrade pip setuptools wheel
 
     - name: Install project and test dependencies
       run: |
-        set -x
         /usr/bin/python -m pip install ".[test]"
 
     - name: Test with pytest
       run: |
+        set +x
         /usr/bin/python -m pytest

.github/workflows/pythonpackage.yml

@@ -20,6 +20,9 @@ jobs:
           - experimental: false
           - python-version: "3.12"
             experimental: true
+    defaults:
+      run:
+        shell: /bin/bash --noprofile --norc -exo pipefail {0}
 
     steps:
     - uses: actions/checkout@v4
@@ -35,19 +38,15 @@ jobs:
 
     - name: Show python and git versions
       run: |
-        set -x
         python --version
         git version
 
     - name: Prepare this repo for tests
       run: |
-        set -x
         TRAVIS=yes ./init-tests-after-clone.sh
 
     - name: Prepare git configuration for tests
       run: |
-        set -x
-
         git config --global user.email "travis@ci.com"
         git config --global user.name "Travis Runner"
         # If we rewrite the user's config by accident, we will mess it up
@@ -56,8 +55,6 @@ jobs:
 
     - name: Update PyPA packages
       run: |
-        set -x
-
         python -m pip install --upgrade pip
         if pip freeze --all | grep --quiet '^setuptools=='; then
             # Python prior to 3.12 ships setuptools. Upgrade it if present.
@@ -67,25 +64,21 @@ jobs:
 
     - name: Install project and test dependencies
       run: |
-        set -x
         pip install ".[test]"
 
     - name: Check types with mypy
       run: |
-        set -x
         mypy -p git
       # With new versions of mypy new issues might arise. This is a problem if there is nobody able to fix them,
       # so we have to ignore errors until that changes.
       continue-on-error: true
 
     - name: Test with pytest
       run: |
-        set -x
         pytest
       continue-on-error: false
 
     - name: Documentation
       run: |
-        set -x
         pip install -r doc/requirements.txt
         make -C doc html