Move things to rpmautospec Python package

This allows us to reuse code, e.g. to get info out of Koji, for both
calculating release tags and generating the changelog.

Signed-off-by: Nils Philippsen <nils@redhat.com>

rpmautospec.py

@@ -0,0 +1,6 @@
+#!/usr/bin/env python
+
+from rpmautospec.cli import main
+
+
+main()

rpmautospec/changelog.py

@@ -13,6 +13,18 @@ import pygit2
 _log = logging.getLogger(__name__)
 
 
+def register_subcommand(subparsers):
+    subcmd_name = "generate-changelog"
+
+    gen_changelog_parser = subparsers.add_parser(
+        subcmd_name, help="Generate changelog entries from git commit logs",
+    )
+
+    gen_changelog_parser.add_argument("worktree_path", help="Path to the dist-git worktree")
+
+    return subcmd_name
+
+
 def run_command(command, cwd=None):
     """ Run the specified command in a specific working directory if one
     is specified.
@@ -31,8 +43,10 @@ def run_command(command, cwd=None):
 
 def main(args):
     """ Main method. """
-    repo_obj = pygit2.Repository(args[0])
-    name = os.path.basename(args[0])
+    repopath = args.worktree_path
+
+    repo_obj = pygit2.Repository(repopath)
+    name = os.path.basename(repopath)
 
     branch = repo_obj.lookup_branch(repo_obj.head.shorthand)
     commit = branch.peel(pygit2.Commit)
@@ -53,7 +67,7 @@ def main(args):
         repo_obj.checkout_tree(
             commit, strategy=pygit2.GIT_CHECKOUT_FORCE | pygit2.GIT_CHECKOUT_RECREATE_MISSING,
         )
-        if os.path.exists(os.path.join(args[0], f"{name}.spec")):
+        if os.path.exists(os.path.join(repopath, f"{name}.spec")):
             try:
                 output = run_command(
                     [
@@ -63,7 +77,7 @@ def main(args):
                         "--specfile",
                         f"{name}.spec",
                     ],
-                    cwd=args[0],
+                    cwd=repopath,
                 )
             except Exception:
                 continue
@@ -108,7 +122,3 @@ def main(args):
                 )
             print("- %s" % message)
             print()
-
-
-if __name__ == "__main__":
-    main(sys.argv[1:])

rpmautospec/cli.py

@@ -0,0 +1,43 @@
+import argparse
+import sys
+
+from . import changelog, release
+
+
+subcmd_modules_by_name = {}
+
+
+def get_cli_args(args):
+    global subcmd_modules_by_name
+
+    parser = argparse.ArgumentParser(prog="rpmautospec")
+
+    # global arguments
+
+    parser.add_argument(
+        "--koji-url",
+        help="The base URL of the Koji hub",
+        default="https://koji.fedoraproject.org/kojihub",
+    )
+
+    # parsers for sub-commands
+
+    subparsers = parser.add_subparsers(dest="subcommand", required=True)
+
+    for subcmd_module in (changelog, release):
+        subcmd_name = subcmd_module.register_subcommand(subparsers)
+
+        if subcmd_name in subcmd_modules_by_name:
+            raise RuntimeError(f"Sub-command specified more than once: {subcmd_name}.")
+
+        subcmd_modules_by_name[subcmd_name] = subcmd_module
+
+    return parser.parse_args(args)
+
+
+def main():
+    args = get_cli_args(sys.argv[1:])
+
+    if args.subcommand:
+        subcmd_module = subcmd_modules_by_name[args.subcommand]
+        subcmd_module.main(args)

rpmautospec/release.py

@@ -20,29 +20,27 @@ _disttag_re = re.compile(r"^\.?(?P<distcode>[^\d\.]+)(?P<distver>\d+)")
 _evr_re = re.compile(r"^(?:(?P<epoch>\d+):)?(?P<version>[^-:]+)(?:-(?P<release>[^-:]+))?$")
 
 
-def get_cli_arguments(args):
-    """ Set the CLI argument parser and return the argument parsed.
-    """
-    parser = argparse.ArgumentParser(description="Script to determine the next NVR of a build")
-    parser.add_argument(
-        "--koji-url",
-        help="The base URL of the Koji hub",
-        default="https://koji.fedoraproject.org/kojihub",
+def register_subcommand(subparsers):
+    subcmd_name = "calculate-release"
+
+    calc_release_parser = subparsers.add_parser(
+        subcmd_name, help="Calculate the next release tag for a package build",
     )
-    parser.add_argument(
+
+    calc_release_parser.add_argument(
         "--algorithm",
         "--algo",
-        help="The algorithm with which to determine the next release",
+        help="The algorithm with which to calculate the next release",
         choices=["sequential_builds", "holistic_heuristic"],
         default="sequential_builds",
     )
-    parser.add_argument("package", help="The name of the package of interest")
-    parser.add_argument("dist", help="The dist-tag of interest")
-    parser.add_argument(
+    calc_release_parser.add_argument("package", help="The name of the package of interest")
+    calc_release_parser.add_argument("dist", help="The dist-tag of interest")
+    calc_release_parser.add_argument(
         "evr", help="The [epoch:]version[-release] of the package", nargs="?", type=parse_evr,
     )
 
-    return parser.parse_args(args)
+    return subcmd_name
 
 
 def parse_evr(evr_str):
@@ -255,7 +253,6 @@ def main_holistic_heuristic_algo(args, client, pkgid):
 
 def main(args):
     """ Main method. """
-    args = get_cli_arguments(args)
     client = koji.ClientSession(args.koji_url)
     pkgid = client.getPackageID(args.package)
 
@@ -267,7 +264,3 @@ def main(args):
         main_sequential_builds_algo(args, client, pkgid)
     elif args.algorithm == "holistic_heuristic":
         main_holistic_heuristic_algo(args, client, pkgid)
-
-
-if __name__ == "__main__":
-    sys.exit(main(sys.argv[1:]))

setup.cfg

@@ -5,5 +5,5 @@ exclude = .git,.tox,dist,*egg,build,tools
 #ignore =
 
 # Configure flake8-import-order
-application-import-names = generate_changelog,next_build
+application-import-names = rpmautospec
 import-order-style = google

tests/test_calc_release.py

@@ -4,7 +4,7 @@ from unittest import mock
 
 import pytest
 
-import next_build
+from rpmautospec import release
 
 
 __here__ = os.path.dirname(__file__)
@@ -42,13 +42,19 @@ class TestNextBuild:
         ) as f:
             koji_list_builds_output = json.load(f)
 
-        with mock.patch("next_build.koji") as mock_koji:
+        with mock.patch("rpmautospec.release.koji") as mock_koji:
             mock_client = mock.MagicMock()
             mock_koji.ClientSession.return_value = mock_client
             mock_client.getPackageID.return_value = 1234
             mock_client.listBuilds.return_value = koji_list_builds_output
 
-            next_build.main((test_data["package"], test_data["dist"]))
+            main_args = mock.Mock()
+            main_args.algorithm = "sequential_builds"
+            main_args.package = test_data["package"]
+            main_args.dist = test_data["dist"]
+            main_args.evr = None
+
+            release.main(main_args)
 
         mock_client.getPackageID.assert_called_once()
         mock_client.listBuilds.assert_called_once()