Setup silecs environments

Issue #64 (closed)

setup_silecs_env.py

+import os
+import argparse
+from packaging import version
+
+def get_major(v):
+    return v._version.release[0]
+
+def get_minor(v):
+    return v._version.release[1]
+
+def get_available_versions(silecs_deploy_dir):
+    """Find available versions of silecs in SILECS_DIR"""
+    subfolders = [f.name for f in os.scandir(silecs_deploy_dir) if os.path.isdir(f)]
+    available_versions = []
+    for f in subfolders:
+        try:
+            v = version.Version(f)
+            available_versions.append(f)
+        except version.InvalidVersion:
+            pass
+
+    return sorted(available_versions, key= lambda x: version.Version(x))
+
+def get_major_versions(versions):
+    """Find all major versions eg ["3.0.1", "2.3.4", "1.4.1"] -> [3, 2, 1]"""
+
+    major_versions = []
+    for v in versions:
+        v = version.Version(v)
+        major = get_major(v)
+        if not major in major_versions:
+            major_versions.append(major)
+    return major_versions
+
+
+def run(silecs_deploy_dir):
+    try:
+        versions = get_available_versions(silecs_deploy_dir)
+        print(versions)
+        major_versions = get_major_versions(versions)
+        assert len(versions)
+    except AssertionError:
+        print("No versions found")
+        return
+
+    latest_version = versions[0]
+
+    # set link for latest version
+    target = os.path.join(silecs_deploy_dir, latest_version)
+    link = os.path.join(silecs_deploy_dir, 'latest')
+    print("symlink created {target} -> {link}")
+
+    # For each major version create link to newest version
+    for mv in major_versions:
+        newest_version_with_major = str([version.Version(v) for v in versions][0])
+        target = os.path.join(SILECS_DIR, newest_version_with_major)
+        link = os.path.join(SILECS_DIR, mv)
+        os.symlink(target, link)
+        print("symlink created {target} -> {link}")
+
+
+if __name__ == "__main__":
+
+    parser = argparse.ArgumentParser(description='Process some integers.')
+    parser.add_argument('silecs_deploy_dir', metavar='silecs_deploy_dir', type=str, nargs=1,
+                    help='path to silecs deploy directory')
+
+    try:
+        options = parser.parse_args()
+    except Exception:
+        sys.exit(0)
+    
+    silecs_deploy_dir = options.silecs_deploy_dir[0]
+    run(silecs_deploy_dir)
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