[feature] Add SquashFS support

Alleviates #109

.github/workflows/tests.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Install pip Dependencies
       run: |
         python3 -m pip install --upgrade pip
-        python3 -m pip install --user fusepy pytest
+        python3 -m pip install --user fusepy pytest lz4 PySquashfsImage
 
     - name: Style Check With Black
       run: |
@@ -118,7 +118,7 @@ jobs:
         # zstd, may also call external binaries depending on how libarchive was compiled!
         # https://github.com/libarchive/libarchive/blob/ad5a0b542c027883d7069f6844045e6788c7d70c/libarchive/
         #   archive_read_support_filter_lrzip.c#L68
-        sudo apt-get -y install libfuse2 fuse3 bzip2 pbzip2 pixz zstd unar lrzip lzop
+        sudo apt-get -y install libfuse2 fuse3 bzip2 pbzip2 pixz zstd unar lrzip lzop gcc liblzo2-dev
         set -x
 
     - name: Install Dependencies (MacOS)
@@ -130,7 +130,7 @@ jobs:
         # And the error message is atrocious:
         #   cmdline.extend(args)
         #   TypeError: 'NoneType' object is not iterable
-        brew install macfuse coreutils pixz pbzip2 zstd unar libarchive lrzip lzop
+        brew install macfuse coreutils pixz pbzip2 zstd unar libarchive lrzip lzop lzo
         # Add brew installation binary folder to PATH so that command line tools like zstd can be found
         export PATH="$PATH:/usr/local/bin"
 

AppImage/build-ratarmount-appimage.sh

@@ -23,7 +23,7 @@ function installSystemRequirements()
     # We need to install development dependencies to build Python packages from source and we also need
     # to install libraries such as libarchive in order to copy them into the AppImage.
     yum install -y fuse fakeroot patchelf fuse-libs libsqlite3x strace desktop-file-utils libzstd-devel \
-        libarchive libarchive-devel lzop
+        libarchive libarchive-devel lzop lzo lzo-devel
 }
 
 function installAppImageTools()
@@ -61,7 +61,7 @@ function installAppImagePythonPackages()
         "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir rapidgzip
     fi
     "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir ../core
-    "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir ..
+    "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir ..[full]
 }
 
 function installAppImageSystemLibraries()
@@ -96,16 +96,19 @@ function installAppImageSystemLibraries()
         libraries+=( $( repoquery -l fuse-libs | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( repoquery -l libarchive | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( repoquery -l libarchive-devel | 'grep' 'lib64.*[.]so' ) )
+        libraries+=( $( repoquery -l lzo | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( repoquery -l xz-devel | 'grep' 'lib64.*[.]so' ) )
     elif commandExists dnf; then
         libraries+=( $( dnf repoquery -l fuse-libs | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( dnf repoquery -l libarchive | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( dnf repoquery -l libarchive-devel | 'grep' 'lib64.*[.]so' ) )
+        libraries+=( $( dnf repoquery -l lzo | 'grep' 'lib64.*[.]so' ) )
         libraries+=( $( dnf repoquery -l xz-devel | 'grep' 'lib64.*[.]so' ) )
     elif commandExists dpkg; then
         libraries+=( $( dpkg -L libfuse2 | 'grep' '/lib.*[.]so' ) )
         libraries+=( $( dpkg -L libarchive13 | 'grep' '/lib.*[.]so' ) )
         libraries+=( $( dpkg -L libarchive-dev | 'grep' '/lib.*[.]so' ) )
+        libraries+=( $( dpkg -L lzo | 'grep' '/lib.*[.]so' ) )
         libraries+=( $( dpkg -L liblzma5 | 'grep' '/lib.*[.]so' ) )
     else
         echo -e "\e[31mCannot gather FUSE libs into AppImage without (dnf) repoquery.\e[0m"

core/pyproject.toml

@@ -56,10 +56,20 @@ full = [
     "python-xz ~= 0.4.0",
     "rapidgzip >= 0.13.1",
     "rarfile ~= 4.0",
+    "PySquashfsImage == 0.9.0",
+    "lz4 ~= 4.0.0",
+    "python-lzo ~= 1.0",
+    "zstandard ~= 0.22.0",
 ]
 bzip2 = ["rapidgzip >= 0.13.1"]
 gzip = ["indexed_gzip >= 1.6.3, < 2.0"]
 rar = ["rarfile ~= 4.0"]
+squashfs = [
+    "PySquashfsImage == 0.9.0",
+    "lz4 ~= 4.0.0",
+    "python-lzo ~= 1.0",
+    "zstandard ~= 0.22.0",
+]
 xz = ["python-xz ~= 0.4.0"]
 zip = []
 zstd = [