CodeQL documentation

execute upgrades

Synopsis

codeql execute upgrades [--threads=<num>] <options>... [--] <dataset> <script>...

Description

[Plumbing] Run upgrade scripts on an existing raw QL dataset.

This command runs a particular sequence of upgrade scripts against the dataset. It is the caller’s responsibility that the “old” dbscheme of each upgrade script matches the “new” dbscheme of the previous script (or, for the first script, the current dbscheme of the dataset). If not, an error will be reported.

Options

<dataset>

[Mandatory] Path to the raw QL dataset to upgrade.

<script>...

[Mandatory] Paths to upgrade scripts to execute. (Each upgrade script is a directory containing several files that define an upgrade operation). They must be given in the order they are to be applied.

--search-path=<dir>[:<dir>...]

A list of directories under which QL packs may be found. Each directory can either be a QL pack (or bundle of packs containing a .codeqlmanifest.json file at the root) or the immediate parent of one or more such directories.

If the path contains more than directory, their order defines precedence between them: when a pack name that must be resolved is matched in more than one of the directory trees, the one given first wins.

Pointing this at a checkout of the open-source CodeQL repository ought to work when querying one of the languages that live there.

If you have have checked out the CodeQL reposity as a sibling of the unpacked CodeQL toolchain, you don’t need to give this option; such sibling directories will always be searched for QL packs that cannot be found otherwise. (If this default does not work, it is strongly recommended to set up --search-path once and for all in a per-user configuration file).

(Note: On Windows the path separator is ;).

--additional-packs=<dir>[:<dir>...]

If this list of directories is given, they will be searched for packs before the ones in --search-path. The order between these doesn’t matter; it is an error if a pack name is found in two different places through this list.

This is useful if you’re temporarily developing a new version of a pack that also appears in the default path. On the other hand, it is not recommended to override this option in a config file; some internal actions will add this option on the fly, overriding any configured value.

(Note: On Windows the path separator is ;).

Options to control evaluation of upgrade queries

--[no-]tuple-counting

[Advanced] Include tuple counts for each evaluation step in the query evaluator logs. (This can be useful for performance optimization of complex QL code).

--timeout=<seconds>

[Advanced] Set the timeout length for query evaluation, in seconds.

The timeout feature is intended to catch cases where a complex query would take “forever” to evaluate. It is not an effective way to limit the total amount of time the query evaluation can take. The evaluation will be allowed to continue as long as each separately timed part of the computation completes within the timeout. Currently these separately timed parts are “RA stages” of the optimized query, but that might change in the future.

If no timeout is specified, or is given as 0, no timeout will be set (except for codeql test run, where the default timeout is 5 minutes).

-j, --threads=<num>

Use this many threads to evaluate queries.

Defaults to 1. You can pass 0 to use one thread per core on the machine, or -N to leave N cores unused (except still use at least one thread).

--[no-]save-cache

[Advanced] Aggressively write intermediate results to the disk cache. This takes more time and uses (much) more disk space, but may speed up the subsequent execution of similar queries.

--[no-]keep-full-cache

[Advanced] Don’t clean up the disk cache after evaluation completes. This may save time if you’re going to do codeql dataset cleanup or codeql database cleanup afterwards anyway.

--max-disk-cache=<MB>

Set the maximum amount of space that the disk cache for intermediate query results can use.

If this size is not configured explicitly, the evaluator will try to use a “reasonable” amount of cache space, based on the size of the dataset and the complexity of the queries. Explicitly setting a higher limit than this default usage will enable additional caching which can speed up later queries.

--min-disk-free=<MB>

[Advanced] Set target amount of free space on file system.

If --max-disk-cache is not given, the evaluator will try hard to curtail disk cache usage if the free space on the file system drops below this value.

--min-disk-free-pct=<pct>

[Advanced] Set target fraction of free space on file system.

If --max-disk-cache is not given, the evaluator will try hard to curtail disk cache usage if the free space on the file system drops below this percentage.

--external=<pred>=<file.csv>

A CSV file that contains rows for external predicate <pred>. Multiple --external options can be supplied.

Common options

-h, --help

Show this help text.

-J=<opt>

[Advanced] Give option to the JVM running the command.

(Beware that options containing spaces will not be handled correctly.)

-v, --verbose

Incrementally increase the number of progress messages printed.

-q, --quiet

Incrementally decrease the number of progress messages printed.

--verbosity=<level>

[Advanced] Explicitly set the verbosity level to one of errors, warnings, progress, progress+, progress++, progress+++. Overrides -v and -q.

--logdir=<dir>

[Advanced] Write detailed logs to one or more files in the given directory, with generated names that include timestamps and the name of the running subcommand.

(To write a log file with a name you have full control over, instead give --log-to-stderr and redirect stderr as desired.)