ci: move the CI handling scripts into bin/ci

Any change in .gitlab-ci/ directory triggers an entire CI run,
which is unnecessary for just changing the developers' scripts.

Added symlink to `.gitlab-ci/bin` to keep original invocation compatibility.

Reviewed-by: Martin Roukala <martin.roukala@mupuf.org>
Reviewed-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20371>

bin/ci/gitlab_common.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+# Copyright © 2020 - 2022 Collabora Ltd.
+# Authors:
+#   Tomeu Vizoso <tomeu.vizoso@collabora.com>
+#   David Heidelberg <david.heidelberg@collabora.com>
+#
+# SPDX-License-Identifier: MIT
+'''Shared functions between the scripts.'''
+
+import os
+import time
+from typing import Optional
+
+
+def get_gitlab_project(glab, name: str):
+    """Finds a specified gitlab project for given user"""
+    glab.auth()
+    username = glab.user.username
+    return glab.projects.get(f"{username}/mesa")
+
+
+def read_token(token_arg: Optional[str]) -> str:
+    """pick token from args or file"""
+    if token_arg:
+        return token_arg
+    return (
+        open(os.path.expanduser("~/.config/gitlab-token"), encoding="utf-8")
+        .readline()
+        .rstrip()
+    )
+
+
+def wait_for_pipeline(project, sha: str):
+    """await until pipeline appears in Gitlab"""
+    print("⏲ for the pipeline to appear..", end="")
+    while True:
+        pipelines = project.pipelines.list(sha=sha)
+        if pipelines:
+            print("", flush=True)
+            return pipelines[0]
+        print("", end=".", flush=True)
+        time.sleep(1)