73 lines
3.1 KiB
ReStructuredText
73 lines
3.1 KiB
ReStructuredText
debug
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=====
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Tags:
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:dfhack-keybind:`debugfilter`
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:index:`Configure verbosity of DFHack debug output.
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<debugfilter; Configure verbosity of DFHack debug output.>` Debug output is
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grouped by plugin name, category name, and verbosity level.
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The verbosity levels are:
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- ``Trace``
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Possibly very noisy messages which can be printed many times per second.
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- ``Debug``
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Messages that happen often but they should happen only a couple of times per
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second.
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- ``Info``
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Important state changes that happen rarely during normal execution.
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- ``Warning``
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Enabled by default. Shows warnings about unexpected events which code
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managed to handle correctly.
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- ``Error``
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Enabled by default. Shows errors which code can't handle without user
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intervention.
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The runtime message printing is controlled using filters. Filters set the
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visible messages of all matching categories. Matching uses regular expression
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syntax, which allows listing multiple alternative matches or partial name
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matches. This syntax is a C++ version of the ECMA-262 grammar (Javascript
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regular expressions). Details of differences can be found at
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https://en.cppreference.com/w/cpp/regex/ecmascript
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Persistent filters are stored in ``dfhack-config/runtime-debug.json``. Oldest
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filters are applied first. That means a newer filter can override the older
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printing level selection.
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Usage:
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``debugfilter category [<plugin regex>] [<category regex>]``
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List available debug plugin and category names. If filters aren't givenm
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then all plugins/categories are matched. This command is a good way to test
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regex parameters before you pass them to ``set``.
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``debugfilter filter [<id>]``
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List active and passive debug print level changes. The optional ``id``
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parameter is the id listed as first column in the filter list. If ``id`` is
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given, then the command shows extended information for the given filter
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only.
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``debugfilter set [<level>] [<plugin regex>] [<category regex>]``
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Create a new debug filter to set category verbosity levels. This filter
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will not be saved when the DF process exists or the plugin is unloaded.
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``debugfilter set persistent [<level>] [<plugin regex>] [<category regex>]``
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Store the filter in the configuration file to until ``unset`` is used to
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remove it.
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``debugfilter unset <id> [<id> ...]``
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Delete a space separated list of filters.
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``debugfilter disable <id> [<id> ...]``
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Disable a space separated list of filters but keep it in the filter list.
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``debugfilter enable <id> [<id> ...]``
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Enable a space sperate list of filters.
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``debugfilter header [enable] | [disable] [<element> ...]``
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Control which header metadata is shown along with each log message. Run it
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without parameters to see the list of configurable elements. Include an
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``enable`` or ``disable`` keyword to change whether specific elements are
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shown.
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Example
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-------
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``debugfilter set Warning core script``
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Hide script execution log messages (e.g. "Loading script:
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dfhack-config/dfhack.init"), which are normally output at Info verbosity
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in the "core" plugin with the "script" category.
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