pyarchinit_OS_utility.py¶

Overview¶

This file contains 9 documented elements.

Classes¶

Pyarchinit_OS_Utility¶

No description available. A utility class providing cross-platform operating system helper methods for file system operations, external tool detection, and platform identification. It exposes methods to create directories, copy generic files, and copy image files from both local paths and remote URLs (unibo://, http://, https://, cloudinary://). Static methods are also provided to check for Graphviz and PostgreSQL installations via subprocess, and to identify whether the current platform is Windows or macOS.

Inherits from: object

Methods¶

create_dir(self, d)¶

No description available. Attempts to create a directory at the path specified by d using os.makedirs. Returns 1 if the directory was successfully created, or 0 if the directory already exists. If creation fails for any other reason, the originating OSError is re-raised.

copy_file_img(self, f, d)¶

Copy an image file to destination. Supports local paths and remote URLs (unibo://, http://, https://, cloudinary://).

Args: f: Source file path (local or remote URL) d: Destination directory or file path

Returns: 0 on success

copy_file(self, f, d)¶

No description available. Copies a file from the source path f to the destination path d, normalizing both paths before performing the operation. If the destination already exists (checked via os.access), the method returns 0 without copying; otherwise, it attempts the copy using shutil.copy and returns 1 on success. If an OSError occurs during the copy, the method suppresses the exception and returns 0 if the destination is found to exist, or re-raises the exception if it does not.

checkgraphvizinstallation()¶

No description available. A static method that verifies whether Graphviz is installed and accessible on the system. It attempts to execute dot -V as a subprocess with a 5-second timeout, suppressing all output. Returns True if the command succeeds, or False if a subprocess.TimeoutExpired, FileNotFoundError, or OSError exception is raised.

checkpostgresinstallation()¶

No description available. A static method that verifies whether PostgreSQL client tools are available on the system by attempting to execute pg_dump -V as a subprocess with a 5-second timeout. Returns True if the command completes successfully, or False if a subprocess.TimeoutExpired, FileNotFoundError, or OSError exception is raised.

isWindows()¶

No description available. A static method that determines whether the current operating system is Windows. It evaluates the os.name attribute and returns True if the value equals 'nt', which is the identifier for Windows-based systems, or False otherwise.

isMac()¶

No description available. A static method that determines whether the current operating system is macOS. It evaluates the sys.platform value against the string 'darwin', returning True if the platform matches and False otherwise.