[DO NOT MERGE] Script to update the Operations section

remove_setup.py

@@ -0,0 +1,174 @@
+from copy import deepcopy
+import collections.abc
+from diraccfg import CFG
+import difflib
+import pprint
+import zlib
+from DIRAC import initialize
+
+import typer
+from pathlib import Path
+
+
+def merge_json(d, u):
+    """
+    Merge together two json
+    """
+    for k, v in u.items():
+        if isinstance(v, collections.abc.Mapping):
+            d[k] = merge_json(d.get(k, {}), v)
+        else:
+            d[k] = v
+    return d
+
+
+def merge_cs_sections_json(root_section, default_setup, known_vos, name=None, merge_in=None):
+    """
+    Recursively merge the Operation sections
+    :param root_section: start of the section we are looking at
+    :param name: The name of the section, just used for printing
+    :param merge_in: name of the section to merge in (if set, do not merge in the root). Only used for Defaults
+    """
+    print(f"Working on {name}")
+    # Create a Defaults section if it doesn't exist
+    if merge_in:
+        if merge_in not in root_section:
+            root_section[merge_in] = {}
+        merge_root = root_section[merge_in]
+    else:
+        merge_root = root_section
+    for section in list(root_section):
+        # Can only happen when merge_in is Default
+        if section == merge_in:
+            continue
+        elif section == default_setup:
+            print(f"Merging {default_setup} to {merge_in}")
+            merge_json(merge_root, root_section[default_setup])
+        elif section in known_vos:
+            print(f"{section} is a vo.")
+            merge_cs_sections_json(root_section[section], default_setup, known_vos, name=section)
+        else:
+            print(f"{section} is unknown, not touching it (other Setup, custom entry...)")
+
+
+def merge_cs_sections_cfg(cs_cfg: CFG, default_setup, known_vos):
+    """Do the merge of the Operation sections using the CFG object directly
+    :param cs_cfg: root of the CS
+    """
+    operation_section = cs_cfg.getAsCFG("/Operations")
+    for section in list(operation_section.getAsDict()):
+        # Can only happen when merge_in is Default
+        if section == "Defaults":
+            continue
+        if section == default_setup:
+            print(f"Merging {default_setup} to Defaults")
+
+            merged_section = operation_section["Defaults"].mergeWith(operation_section[default_setup])
+            operation_section.deleteKey("Defaults")
+            operation_section.createNewSection(
+                "Defaults",
+                comment="Automatic merging to remove Setups",
+                contents=merged_section,
+            )
+
+            # print(f"Removing {default_setup}")
+            # operation_section.deleteKey(default_setup)
+        elif section in known_vos:
+            vo_section = operation_section[section]
+            if default_setup in vo_section:
+                merged_section = vo_section.mergeWith(vo_section[default_setup])
+                operation_section.deleteKey(section)
+                operation_section.createNewSection(
+                    section,
+                    comment="Automatic merging to remove Setups",
+                    contents=merged_section,
+                )
+
+            print(f"{section} is a vo.")
+
+        else:
+            print(f"{section} is unknown, not touching it (other Setup, custom entry...)")
+
+    cs_cfg.deleteKey("/Operations")
+    cs_cfg.createNewSection("/Operations", comment="Merging", contents=operation_section)
+
+
+def compare_dicts(d1, d2):
+    """Produces an HTML output of the diff between 2 dicts"""
+    return difflib.HtmlDiff().make_file(
+        pprint.pformat(d1).splitlines(),
+        pprint.pformat(d2).splitlines(),
+    )
+
+
+def main(diff_file: Path = "/tmp/diff.html", setup: str = "", execute_update: bool = False):
+    """
+    Remove the Setup sections from the Operations section.
+
+    If --diff-file is specified, dump the html comparison at this location
+
+    If --setup is specified, use it instead of the default one
+
+    If --execute-update is set, it will attempt to actually update the CS
+    """
+    initialize()
+    from DIRAC.ConfigurationSystem.Client.ConfigurationClient import ConfigurationClient
+    from DIRAC.ConfigurationSystem.Client.ConfigurationData import gConfigurationData
+
+    cs_cfg = gConfigurationData.getRemoteCFG()
+
+    original_cs_json = cs_cfg.getAsDict()
+
+    cs_json = cs_cfg.getAsDict()
+
+    default_setup = setup if setup else cs_json["DIRAC"]["DefaultSetup"]
+    typer.echo(f"Default setup is {default_setup}")
+    known_vos = cs_json["Registry"]["VO"]
+    typer.echo(f"Known VOs {known_vos}")
+    master_cs = cs_json["DIRAC"]["Configuration"]["MasterServer"]
+    typer.echo(f"MasterCS {master_cs}")
+
+    # First do a merge using JSON
+    merge_cs_sections_json(cs_json["Operations"], default_setup, known_vos, "Operations", "Defaults")
+    first_pass_cs_json = deepcopy(cs_json)
+    # Do it twice, because runing over it twice shouldn't change the result
+    merge_cs_sections_json(cs_json["Operations"], default_setup, known_vos, "Operations", "Defaults")
+    # Make sure the output of the first and second pass are the same
+    assert first_pass_cs_json == cs_json
+
+    ##############
+
+    # Redo the exercise with the CFG object
+
+    merge_cs_sections_cfg(cs_cfg, default_setup, known_vos)
+    first_pass_cs_cfg = cs_cfg.clone()
+    merge_cs_sections_cfg(cs_cfg, default_setup, known_vos)
+    assert first_pass_cs_cfg.getAsDict() == cs_cfg.getAsDict()
+
+    ##############
+
+    # Finally, make sure we get the same thing in json and CFG
+
+    assert cs_cfg.getAsDict() == cs_json
+
+    ##############
+
+    # Produces diff output
+
+    # print(compare_dicts(original_cs_json["Operations"], cs_cfg.getAsDict("/Operations")))
+    with open(diff_file, "w") as f:
+        f.write(compare_dicts(original_cs_json["Operations"], cs_json["Operations"]))
+
+    typer.echo(f"Diff written in {diff_file}")
+
+    if execute_update:
+        compressed_data = zlib.compress(str(cs_cfg).encode(), 9)
+        update_res = ConfigurationClient(url=master_cs).commitNewData(compressed_data)
+        if update_res["OK"]:
+            typer.echo("Successfuly updated CS")
+        else:
+            typer.echo(f"Error updating CS: {update_res['Message']}")
+
+
+if __name__ == "__main__":
+    typer.run(main)