Add external stack support (#806)

Reviewed-on: cerc-io/stack-orchestrator#806
Co-authored-by: David Boreham <david@bozemanpass.com>
Co-committed-by: David Boreham <david@bozemanpass.com>

stack_orchestrator/repos/fetch_stack.py

@@ -0,0 +1,45 @@
+# Copyright © 2022, 2023 Vulcanize
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+
+# env vars:
+# CERC_REPO_BASE_DIR defaults to ~/cerc
+
+
+import click
+import os
+
+from decouple import config
+from git import exc
+
+from stack_orchestrator.opts import opts
+from stack_orchestrator.repos.setup_repositories import process_repo
+from stack_orchestrator.util import error_exit
+
+
+@click.command()
+@click.argument('stack-locator')
+@click.option('--git-ssh', is_flag=True, default=False)
+@click.option('--check-only', is_flag=True, default=False)
+@click.option('--pull', is_flag=True, default=False)
+@click.pass_context
+def command(ctx, stack_locator, git_ssh, check_only, pull):
+    '''optionally resolve then git clone a repository containing one or more stack definitions'''
+    dev_root_path = os.path.expanduser(config("CERC_REPO_BASE_DIR", default="~/cerc"))
+    if not opts.o.quiet:
+        print(f"Dev Root is: {dev_root_path}")
+    try:
+        process_repo(pull, check_only, git_ssh, dev_root_path, None, stack_locator)
+    except exc.GitCommandError as error:
+        error_exit(f"\n******* git command returned error exit status:\n{error}")

stack_orchestrator/repos/setup_repositories.py

@@ -26,6 +26,7 @@ import importlib.resources
 from pathlib import Path
 import yaml
 from stack_orchestrator.constants import stack_file_name
+from stack_orchestrator.opts import opts
 from stack_orchestrator.util import include_exclude_check, stack_is_external, error_exit, warn_exit
 
 
@@ -87,8 +88,8 @@ def _get_repo_current_branch_or_tag(full_filesystem_repo_path):
 
 
 # TODO: fix the messy arg list here
-def process_repo(verbose, quiet, dry_run, pull, check_only, git_ssh, dev_root_path, branches_array, fully_qualified_repo):
-    if verbose:
+def process_repo(pull, check_only, git_ssh, dev_root_path, branches_array, fully_qualified_repo):
+    if opts.o.verbose:
         print(f"Processing repo: {fully_qualified_repo}")
     repo_host, repo_path, repo_branch = host_and_path_for_repo(fully_qualified_repo)
     git_ssh_prefix = f"git@{repo_host}:"
@@ -100,7 +101,7 @@ def process_repo(verbose, quiet, dry_run, pull, check_only, git_ssh, dev_root_pa
     (current_repo_branch_or_tag, is_branch) = _get_repo_current_branch_or_tag(
         full_filesystem_repo_path
         ) if is_present else (None, None)
-    if not quiet:
+    if not opts.o.quiet:
         present_text = f"already exists active {'branch' if is_branch else 'tag'}: {current_repo_branch_or_tag}" if is_present \
             else 'Needs to be fetched'
         print(f"Checking: {full_filesystem_repo_path}: {present_text}")
@@ -111,25 +112,25 @@ def process_repo(verbose, quiet, dry_run, pull, check_only, git_ssh, dev_root_pa
             sys.exit(1)
         else:
             if pull:
-                if verbose:
+                if opts.o.verbose:
                     print(f"Running git pull for {full_filesystem_repo_path}")
                 if not check_only:
                     if is_branch:
                         git_repo = git.Repo(full_filesystem_repo_path)
                         origin = git_repo.remotes.origin
-                        origin.pull(progress=None if quiet else GitProgress())
+                        origin.pull(progress=None if opts.o.quiet else GitProgress())
                     else:
                         print("skipping pull because this repo checked out a tag")
                 else:
                     print("(git pull skipped)")
     if not is_present:
         # Clone
-        if verbose:
+        if opts.o.verbose:
             print(f'Running git clone for {full_github_repo_path} into {full_filesystem_repo_path}')
-        if not dry_run:
+        if not opts.o.dry_run:
             git.Repo.clone_from(full_github_repo_path,
                                 full_filesystem_repo_path,
-                                progress=None if quiet else GitProgress())
+                                progress=None if opts.o.quiet else GitProgress())
         else:
             print("(git clone skipped)")
     # Checkout the requested branch, if one was specified
@@ -150,13 +151,13 @@ def process_repo(verbose, quiet, dry_run, pull, check_only, git_ssh, dev_root_pa
             current_repo_branch_or_tag and (
                 current_repo_branch_or_tag != branch_to_checkout)
                 ):
-            if not quiet:
+            if not opts.o.quiet:
                 print(f"switching to branch {branch_to_checkout} in repo {repo_path}")
             git_repo = git.Repo(full_filesystem_repo_path)
             # git checkout works for both branches and tags
             git_repo.git.checkout(branch_to_checkout)
         else:
-            if verbose:
+            if opts.o.verbose:
                 print(f"repo {repo_path} is already on branch/tag {branch_to_checkout}")
 
 
@@ -182,36 +183,18 @@ def parse_branches(branches_string):
 @click.option('--check-only', is_flag=True, default=False)
 @click.option('--pull', is_flag=True, default=False)
 @click.option("--branches", help="override branches for repositories")
-@click.option('--branches-file', help="checkout branches specified in this file")
 @click.pass_context
-def command(ctx, include, exclude, git_ssh, check_only, pull, branches, branches_file):
+def command(ctx, include, exclude, git_ssh, check_only, pull, branches):
     '''git clone the set of repositories required to build the complete system from source'''
 
-    quiet = ctx.obj.quiet
-    verbose = ctx.obj.verbose
-    dry_run = ctx.obj.dry_run
-    stack = ctx.obj.stack
+    quiet = opts.o.quiet
+    verbose = opts.o.verbose
+    stack = opts.o.stack
 
     branches_array = []
 
-    # TODO: branches file needs to be re-worked in the context of stacks
-    if branches_file:
-        if branches:
-            print("Error: can't specify both --branches and --branches-file")
-            sys.exit(1)
-        else:
-            if verbose:
-                print(f"loading branches from: {branches_file}")
-            with open(branches_file) as branches_file_open:
-                branches_array = branches_file_open.read().splitlines()
-
-    print(f"branches: {branches}")
     if branches:
-        if branches_file:
-            print("Error: can't specify both --branches and --branches-file")
-            sys.exit(1)
-        else:
-            branches_array = parse_branches(branches)
+        branches_array = parse_branches(branches)
 
     if branches_array and verbose:
         print(f"Branches are: {branches_array}")
@@ -271,7 +254,6 @@ def command(ctx, include, exclude, git_ssh, check_only, pull, branches, branches
 
     for repo in repos:
         try:
-            process_repo(verbose, quiet, dry_run, pull, check_only, git_ssh, dev_root_path, branches_array, repo)
+            process_repo(pull, check_only, git_ssh, dev_root_path, branches_array, repo)
         except git.exc.GitCommandError as error:
-            print(f"\n******* git command returned error exit status:\n{error}")
-            sys.exit(1)
+            error_exit(f"\n******* git command returned error exit status:\n{error}")