Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codeql-analysis.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/docker-publish.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v4

.github/workflows/package-linux.yml

@@ -25,7 +25,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Set up Python
       uses: actions/setup-python@v6
       with:

.github/workflows/package-macos.yml

@@ -30,7 +30,7 @@ jobs:
     env:
       MACOSX_DEPLOYMENT_TARGET: '14.0'
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Python
         uses: actions/setup-python@v6
         with:

.github/workflows/package-osx-legacy.yml

@@ -31,7 +31,7 @@ jobs:
       PYTHON_VERSION: 3.11.9
       MACOSX_DEPLOYMENT_TARGET: '10.14'
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Get Python
         run: curl https://www.python.org/ftp/python/3.11.9/python-3.11.9-macos11.pkg -o "python.pkg"
       - name: Install Python

.github/workflows/package-windows.yml

@@ -35,7 +35,7 @@ jobs:
             command: build_c2p
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Python
         uses: actions/setup-python@v6
         with:

.github/workflows/package-windows7.yml

@@ -27,7 +27,7 @@ jobs:
     env:
       WINDOWS_7: 1
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Python
         uses: actions/setup-python@v6
         with:

kindlecomicconverter/KCC_gui.py

@@ -1189,6 +1189,11 @@ class KCCGUI(KCC_ui.Ui_mainWindow):
             self.kindleGen = False
             if startup:
                 self.display_kindlegen_missing()
+        except OSError as e:
+            self.kindleGen = False
+            if startup:
+                error = f"kindlegen: {e.strerror}\n\n Re-install Rosetta/Kindle Previewer/other Intel app?\n\nPlease email Amazon to make Kindle Previewer Apple silicon native at amazon.com/kindle-help"
+                self.showDialog(error, 'error')
 
     def __init__(self, kccapp, kccwindow):
         global APP, MW, GUI

kindlecomicconverter/comic2ebook.py

@@ -1673,6 +1673,11 @@ def checkTools(source):
         except (FileNotFoundError, CalledProcessError):
             print('ERROR: KindleGen is missing!')
             sys.exit(1)
+        except OSError as e:
+            print(f"kindlegen: {e.strerror}")
+            print('Re-install Rosetta/Kindle Previewer/other Intel app?')
+            print('Please email Amazon to make Kindle Previewer Apple silicon native at amazon.com/kindle-help')
+            sys.exit(1)
 
 
 def checkPre(source='KCC-'):
@@ -1933,8 +1938,11 @@ def makeMOBIWorker(item):
     kindlegenError = ''
     try:
         if os.path.getsize(item) < 629145600:
+            start = perf_counter()
             output = subprocess_run(['kindlegen', '-dont_append_source', '-locale', 'en', item],
                            stdout=PIPE, stderr=STDOUT, encoding='UTF-8', errors='ignore', check=True)
+            end = perf_counter()
+            print(f"kindlegen: {end - start} sec")
         else:
             # ERROR: EPUB too big
             kindlegenErrorCode = 23026