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import os |
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import requests |
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import shutil |
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import sys |
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from zipfile import ZipFile |
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from .prompt import read_user_yes_no |
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from .utils import make_sure_path_exists, rmtree |
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def prompt_and_delete(path, no_input=False): |
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"""Ask the user whether it's okay to delete the previously-downloaded file/directory. |
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If yes, deletes it. Otherwise, Cookiecutter exits. |
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:param path: Previously downloaded zipfile. |
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:param no_input: Suppress prompt to delete repo and just delete it. |
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""" |
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# Suppress prompt if called via API |
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if no_input: |
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ok_to_delete = True |
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else: |
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question = ( |
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"You've downloaded {} before. " |
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"Is it okay to delete and re-download it?" |
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).format(path) |
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ok_to_delete = read_user_yes_no(question, 'yes') |
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if ok_to_delete: |
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if os.path.isdir(path): |
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rmtree(path) |
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else: |
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os.remove(path) |
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else: |
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sys.exit() |
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return ok_to_delete |
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def unzip(zip_url, is_url, clone_to_dir='.', no_input=False): |
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# Ensure that clone_to_dir exists |
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clone_to_dir = os.path.expanduser(clone_to_dir) |
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make_sure_path_exists(clone_to_dir) |
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if is_url: |
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# Build the name of the cached zipfile, |
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# and prompt to delete if it already exists. |
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identifier = zip_url.rsplit('/', 1)[1] |
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zip_path = os.path.join(clone_to_dir, identifier) |
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if os.path.exists(zip_path): |
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ok_to_delete = prompt_and_delete(zip_path, no_input=no_input) |
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else: |
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ok_to_delete = None |
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# (Re) download the zipfile |
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r = requests.get(zip_url, stream=True) |
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with open(zip_path, 'wb') as f: |
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for chunk in r.iter_content(chunk_size=1024): |
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if chunk: # filter out keep-alive new chunks |
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f.write(chunk) |
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else: |
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# Just use the local zipfile as-is. |
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zip_path = os.path.abspath(zip_url) |
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ok_to_delete = None |
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# Now unpack the repository. The zipfile will include |
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# the name of the template as the top level directory; |
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# Check if that directory already exists, and if so, |
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# prompt for deletion. If we've previously OK'd deletion, |
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# don't ask again. |
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zip_file = ZipFile(zip_path) |
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unzip_name = zip_file.namelist()[0][:-1] |
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unzip_path = os.path.join(clone_to_dir, unzip_name) |
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if os.path.exists(unzip_path): |
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if ok_to_delete is None: |
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ok_to_delete = prompt_and_delete(unzip_path, no_input=no_input) |
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else: |
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rmtree(unzip_path) |
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# Extract the zip file |
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zip_file.extractall(path=clone_to_dir) |
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return unzip_path |
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audreyr /
cookiecutter
