58 lines
2.8 KiB
Python
58 lines
2.8 KiB
Python
import os, typing
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def relative_to_folder(abs_path: str, src_parent: str, dst_parent: str) -> str:
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"""
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Rebase one path to another path.
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Give a absolute file path and folder path, and compute the relative path of given file to given folder.
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Then applied the computed relative path to another given folder path.
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Thus it seems like the file was rebased to from a folder to another folder with keeping the folder hierarchy.
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For example, given `/path/to/file` and `/path`, it will compute relative path `to/file`.
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Then it was applied to another folder path `/new` and got `/new/to/file`.
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@param abs_path[in] The absolute path to a folder or file.
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@param src_parent[in] The absolute path to folder which the `abs_path` will have relative path to.
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@param dst_parent[in] The absolute path to folder which the relative path will be applied to.
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"""
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return os.path.join(dst_parent, os.path.relpath(abs_path, src_parent))
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def common_file_migrator(
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from_folder: str, to_folder: str,
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fct_proc_folder: typing.Callable[[str, str], None],
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fct_proc_file: typing.Callable[[str, str], None]) -> None:
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"""
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Common file migrator used by some build script.
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This function receive 2 absolute folder path. `from_folder` indicate the file migrated out,
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and `to_folder` indicate the file migrated in.
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`fct_proc_folder` is a function pointer from caller which handle folder migration in detail.
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`fct_proc_file` is same but handle file migration.
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`fct_proc_folder` will receive 2 args. First is the source folder. Second is expected dest folder.
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`fct_proc_file` is same, but receive the file path instead.
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Both of these function pointer should do the migration in detail. This function will only just iterate
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folder and give essential args and will not do any migration operations such as copying or moving.
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@param from_folder[in] The folder need to be migrated.
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@param to_folder[in] The folder will be migrated to.
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@param fct_proc_folder[in] Folder migration detail handler.
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@param fct_proc_file[in] File migration detail handler.
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"""
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# iterate from_folder folder
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for root, dirs, files in os.walk(from_folder, topdown = True):
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# iterate folders
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for name in dirs:
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# prepare handler args
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src_folder: str = os.path.join(root, name)
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dst_folder: str = relative_to_folder(src_folder, from_folder, to_folder)
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# call handler
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fct_proc_folder(src_folder, dst_folder)
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# iterate files
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for name in files:
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# prepare handler args
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src_file: str = os.path.join(root, name)
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dst_file: str = relative_to_folder(src_file, from_folder, to_folder)
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# call handler
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fct_proc_file(src_file, dst_file)
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