Git clone without prompting for HTTPS or SSH password (print message instead)

git_no_credential_prompt.cmake

cmake_minimum_required(VERSION 3.5)

set(urls
"https://github.com/scivision/not-a-repo.git"
"ssh://github.com/scivision/not-a-repo.git"
)

find_package(Git REQUIRED)

set(ENV{GIT_TERMINAL_PROMPT} 0)
set(ENV{GIT_SSH_COMMAND} "ssh -oBatchMode=yes")

foreach(url IN LISTS urls)

execute_process(
COMMAND ${GIT_EXECUTABLE} clone ${url}
RESULT_VARIABLE ret
OUTPUT_VARIABLE out OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_VARIABLE err ERROR_STRIP_TRAILING_WHITESPACE
)

message(STATUS "url: ${url}
returncode: ${ret}
stdout: ${out}
stderr: ${err}
")

endforeach()

git_no_credential_prompt.py

#!/usr/bin/env python3
"""
Without this technique, the clone operation would prompt for a password and hang
endlessly or until timemout.
"""

import os
import subprocess
import shutil

urls = (
    "https://github.com/scivision/not-a-repo.git",
    "https://github.com/scivision/gitMC.git",
)

if not (git := shutil.which("git")):
    raise FileNotFoundError("git not found")

env = os.environ.copy()
env["GIT_TERMINAL_PROMPT"] = "0"
env["GIT_SSH_COMMAND"] = "ssh -oBatchMode=yes"

for url in urls:
    ret = subprocess.run([git, "clone", url], env=env, text=True, capture_output=True)

    print("url:", url)
    print("returncode:", ret.returncode)
    print("stdout:", ret.stdout)
    print("stderr:", ret.stderr)