initial commit

Author: Philipp Felsecker

README.md

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+This is just a random collection of scripts I once wrote to help me in my daily life.

gh-get-latest.py

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+#!/usr/bin/env python3
+
+import requests as req
+import sys
+from simple_term_menu import TerminalMenu
+import shutil
+import urllib.request
+
+def eprint(*args, **kwargs):
+    print(*args, file=sys.stderr, **kwargs)
+
+def usage():
+    usage_str = f"""
+========== Usage: ==========
+{sys.argv[0]} <github_repo_url>
+example:
+    {sys.argv[0]} https://github.com/derailed/k9s
+    """
+
+    eprint(usage_str)
+    sys.exit(1)
+
+
+def select_asset(owner='', repo=''):
+    download_url = ""
+    file_name = ""
+    assets = {}
+
+    if owner == "" or repo == "":
+        eprint(f"We need owner and repo to grab the latest release. Got owner={owner} and repo={repo}")
+        return download_url
+
+    assets = grab_latest_from_gh_api(owner, repo)
+
+    asset_names = list(assets.keys())
+    if len(asset_names) > 0:
+        tmenu = TerminalMenu(asset_names, title="Select Asset to Dwonload", search_case_sensitive=False, show_search_hint=True, clear_screen=True)
+        selection = tmenu.show()
+        file_name = asset_names[selection]
+        download_url = assets[file_name]
+
+    return file_name, download_url
+    
+
+def grab_latest_from_gh_api(owner='', repo=''):
+    github_api_url_base = "https://api.github.com/repos"
+    github_api_url_latest_path = "releases/latest"
+    assets = {}
+
+    if owner == "" or repo == "":
+        eprint(f"We need owner and repo to grab the latest release. Got owner={owner} and repo={repo}")
+
+    latest_release_url = f"{github_api_url_base}/{owner}/{repo}/{github_api_url_latest_path}"
+
+    res = req.get(latest_release_url)
+    if res.status_code != 200:
+        eprint(f"Error grabbing latest version info from Github. Got {res.status_code}")
+        return ""
+
+    asset_list = res.json()
+    for asset in asset_list["assets"]:
+        if asset['name'] and asset['name'] != "" and asset['browser_download_url'] and asset['browser_download_url'] != "":
+            assets[asset['name']] = asset['browser_download_url']
+
+    return assets
+
+
+def download_latest_from_gh(file_name='', download_url=''):
+    if file_name == "" or download_url == "":
+        eprint(f"Need filename (got: {file_name}) and download_url (got: {download_url})")
+        sys.exit(1)
+
+    print(f"Downloading {download_url}")
+    with urllib.request.urlopen(download_url) as res, open(file_name, 'wb') as out_file:
+        shutil.copyfileobj(res, out_file)
+
+def split_gh_url(repo_url=''):
+    split_url = repo_url.split("/")
+    repo = split_url[-1]
+    owner = split_url[-2]
+    if repo == "/":
+        repo = split_url[-2]
+        owner = split_url[-3]
+
+    return owner, repo
+
+def main():
+
+    if len(sys.argv) <= 1:
+        usage()
+
+    repo_url = sys.argv[1]
+
+    owner, repo = split_gh_url(repo_url)
+
+    file_name, download_url = select_asset(owner, repo)
+    if file_name =="" or download_url == "":
+        eprint(f"Couldn't find a suitable download_url for latest release from Github.")
+        sys.exit(1)
+
+    download_latest_from_gh(file_name, download_url)
+
+
+if __name__ == "__main__":
+    main()