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#!/usr/bin/env python2.7
from __future__ import print_function
import commands
import os
import stat
from gitlab import Gitlab
def get_clone_commands(token, repo_root):
con = Gitlab("http://gitlab.your.domain", token)
con.auth()
for project in con.Project(per_page=200):
url = project.ssh_url_to_repo
subdir = url.split(":")[1].split("/")[0]
cmd = "bash -c '(mkdir -p {repo_root}/{subdir} && cd {repo_root}/{subdir} && git clone {url})'".format(**locals())
yield cmd
def restructure_repos(repo_root):
cmd = r"""
#!/bin/sh
cd {repo_root}/{subdir}
git filter-branch --index-filter \
'git ls-files -s | sed "s%\t\"*%&{prefix}/%" |
GIT_INDEX_FILE=$GIT_INDEX_FILE.new \
git update-index --index-info &&
mv "$GIT_INDEX_FILE.new" "$GIT_INDEX_FILE"' HEAD
""".strip()
repo_root = os.path.abspath(repo_root)
for entry in os.walk(repo_root):
dir = entry[0]
subdir = os.path.relpath(dir, repo_root)
if len(subdir.split("/")) != 2:
continue
repo = subdir.replace(".git", "")
yield cmd.format(repo_root=repo_root, prefix=repo, subdir=subdir)
def get_branches(dir):
output = commands.getoutput("(cd {dir} && git branch -a)".format(dir=dir))
branches = [b.strip().replace("* ", "") for b in output.strip().split("\n")]
return branches
def integrate_repos(repo_root, monorepo):
cmd = r"""
#!/bin/sh
cd {monorepo}
git remote add -f {alias} {dir}
git pull --no-edit {alias} {branch}
""".strip()
repo_root = os.path.abspath(repo_root)
for entry in os.walk(repo_root):
dir = entry[0]
subdir = os.path.relpath(dir, repo_root)
if len(subdir.split("/")) != 2:
continue
repo = subdir.replace(".git", "" )
alias = repo.replace("/", "-")
for branch in get_branches(dir):
if branch != "master":
continue
if branch == "master":
monobranch = "master"
else:
monobranch = "{alias}-{branch}".format(alias=alias, branch=branch)
yield cmd.format(branch=branch, monobranch=monobranch, monorepo=monorepo, alias=alias, repo_root=repo_root, prefix=repo, subdir=subdir, dir=dir, repo=repo)
def make_executable(path):
mode = os.stat(path).st_mode
mode |= (mode & 0o444) >> 2 # copy R bits to X
os.chmod(path, mode)
def execute_script(cmd):
script_name = "/tmp/cmd"
with open(script_name, "w") as f:
f.write(cmd)
make_executable(script_name)
return os.system(script_name)
def main():
WORKDIR = "/tmp/repo"
os.system("rm -fr {}".format(WORKDIR))
REPO_ROOT = os.path.join(WORKDIR, "repos")
os.system("mkdir -p {}".format(REPO_ROOT))
for cmd in get_clone_commands("YOUR_GITLAB_TOKEN", REPO_ROOT):
rc = os.system(cmd)
assert rc == 0
for cmd in restructure_repos(REPO_ROOT):
print(cmd)
rc = execute_script(cmd)
assert rc == 0
MONOREPO = os.path.join(WORKDIR, "monorepo")
os.system("rm -fr {}".format(MONOREPO))
os.system("mkdir -p {}".format(MONOREPO))
os.system("cd {monorepo} && git init".format(monorepo=MONOREPO))
for cmd in integrate_repos(REPO_ROOT, MONOREPO):
print(cmd)
rc = execute_script(cmd)
assert rc == 0
if __name__ == "__main__":
main()
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