Files @ ee1da602b590
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Location: kallithea/scripts/validate-commits - annotation

Thomas De Schampheleire
repo_groups: fix deletion of subgroups

Deletion of a repository group that has a parent group (i.e. is not at the
root of the repository group tree) failed as follows:

Traceback (most recent call last):
[...]
File ".../lib/python3.9/site-packages/tg/configurator/components/dispatch.py", line 114, in _call_controller
return controller(*remainder, **params)
File "<decorator-gen-5>", line 2, in delete

File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/lib/auth.py", line 572, in __wrapper
return func(*fargs, **fkwargs)
File "/home/tdescham/repo/contrib/kallithea/kallithea-release/kallithea/controllers/admin/repo_groups.py", line 271, in delete
if gr.parent_group:
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 294, in __get__
return self.impl.get(instance_state(instance), dict_)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/attributes.py", line 730, in get
value = self.callable_(state, passive)
File ".../lib/python3.9/site-packages/sqlalchemy/orm/strategies.py", line 717, in _load_for_state
raise orm_exc.DetachedInstanceError(
sqlalchemy.orm.exc.DetachedInstanceError: Parent instance <RepoGroup at 0x7f1f2664f4c0> is not bound to a Session; lazy load operation of attribute 'parent_group' cannot proceed (Background on this error at: http://sqlalche.me/e/13/bhk3)


In the reference 'gr.parent_group', 'gr' is an SQLAlchemy object referring
to the group being deleted, and 'gr.parent_group' is a lazy reference to its
parent group. The 'lazy' means that the parent group object is not loaded
automatically when 'gr' is assigned, but instead will be loaded on-the-fly
when the parent group is actually accessed. See [1] and [2] for more
information.

The problem was that the lazy 'parent_group' attribute was accessed _after_
deleting the database object it was part of.

Fix this by obtaining a handle to the parent group _before_ deleting the
subgroup.

Reported-by: André Klitzing (via mailing list)


[1] https://docs.sqlalchemy.org/en/13/errors.html#error-bhk3
[2] https://docs.sqlalchemy.org/en/13/orm/loading_relationships.html
#!/bin/bash
# Validate the specified commits against test suite and other checks.

if [ -n "$VIRTUAL_ENV" ]; then
    echo "Please run this script from outside a virtualenv."
    exit 1
fi

if ! hg update --check -q .; then
    echo "Working dir is not clean, please commit/revert changes first."
    exit 1
fi

revset=$1
if [ -z "$revset" ]; then
    echo "Warning: no revisions specified, checking draft changes up to the current one."
    revset='draft() and ancestors(.)'
fi

venv=$(mktemp -d kallithea-validatecommits-env-XXXXXX)
resultfile=$(mktemp kallithea-validatecommits-result-XXXXXX)
echo > "$resultfile"

cleanup()
{
    rm -rf /tmp/kallithea-test*
    rm -rf "$venv"
}
finish()
{
    cleanup
    # print (possibly intermediate) results
    cat "$resultfile"
    rm "$resultfile"
}
trap finish EXIT

for rev in $(hg log -r "$revset" -T '{node}\n'); do
    hg log -r "$rev"
    hg update "$rev"

    cleanup
    python3 -m venv "$venv"
    source "$venv/bin/activate"
    pip install --upgrade pip setuptools
    pip install -e . -r dev_requirements.txt python-ldap python-pam

    # run-all-cleanup
    if ! scripts/run-all-cleanup ; then
        echo "run-all-cleanup encountered errors!"
        result="NOK"
    else
        if ! hg update --check -q .; then
            echo "run-all-cleanup did not give clean results!"
            result="NOK"
            hg diff
            hg revert -a
        else
            result=" OK"
        fi
    fi
    echo "$result: $rev (run-all-cleanup)" >> "$resultfile"

    # pytest
    if py.test; then
        result=" OK"
    else
        result="NOK"
    fi
    echo "$result: $rev (pytest)" >> "$resultfile"

    deactivate
    echo
done