dialyzer --version (return code: 0)
Dialyzer version v3.2.1
dialyzer --help (return code: 0)
Usage: dialyzer [--help] [--version] [--shell] [--quiet] [--verbose] [-pa dir]* [--plt plt] [--plts plt*] [-Ddefine]* [-I include_dir]* [--output_plt file] [-Wwarn]* [--raw] [--src] [--gui] [files_or_dirs] [-r dirs] [--apps applications] [-o outfile] [--build_plt] [--add_to_plt] [--remove_from_plt] [--check_plt] [--no_check_plt] [--plt_info] [--get_warnings] [--dump_callgraph file] [--no_native] [--fullpath] [--statistics] [--no_native_cache] Options: files_or_dirs (for backwards compatibility also as: -c files_or_dirs) Use Dialyzer from the command line to detect defects in the specified files or directories containing .erl or .beam files, depending on the type of the analysis. -r dirs Same as the previous but the specified directories are searched recursively for subdirectories containing .erl or .beam files in them, depending on the type of analysis. --apps applications Option typically used when building or modifying a plt as in: dialyzer --build_plt --apps erts kernel stdlib mnesia ... to conveniently refer to library applications corresponding to the Erlang/OTP installation. However, the option is general and can also be used during analysis in order to refer to Erlang/OTP applications. In addition, file or directory names can also be included, as in: dialyzer --apps inets ssl ./ebin ../other_lib/ebin/my_module.beam -o outfile (or --output outfile) When using Dialyzer from the command line, send the analysis results to the specified outfile rather than to stdout. --raw When using Dialyzer from the command line, output the raw analysis results (Erlang terms) instead of the formatted result. The raw format is easier to post-process (for instance, to filter warnings or to output HTML pages). --src Override the default, which is to analyze BEAM files, and analyze starting from Erlang source code instead. -Dname (or -Dname=value) When analyzing from source, pass the define to Dialyzer. (**) -I include_dir When analyzing from source, pass the include_dir to Dialyzer. (**) -pa dir Include dir in the path for Erlang (useful when analyzing files that have '-include_lib()' directives). --output_plt file Store the plt at the specified file after building it. --plt plt Use the specified plt as the initial plt (if the plt was built during setup the files will be checked for consistency). --plts plt* Merge the specified plts to create the initial plt -- requires that the plts are disjoint (i.e., do not have any module appearing in more than one plt). The plts are created in the usual way: dialyzer --build_plt --output_plt plt_1 files_to_include ... dialyzer --build_plt --output_plt plt_n files_to_include and then can be used in either of the following ways: dialyzer files_to_analyze --plts plt_1 ... plt_n or: dialyzer --plts plt_1 ... plt_n -- files_to_analyze (Note the -- delimiter in the second case) -Wwarn A family of options which selectively turn on/off warnings (for help on the names of warnings use dialyzer -Whelp). --shell Do not disable the Erlang shell while running the GUI. --version (or -v) Print the Dialyzer version and some more information and exit. --help (or -h) Print this message and exit. --quiet (or -q) Make Dialyzer a bit more quiet. --verbose Make Dialyzer a bit more verbose. --statistics Prints information about the progress of execution (analysis phases, time spent in each and size of the relative input). --build_plt The analysis starts from an empty plt and creates a new one from the files specified with -c and -r. Only works for beam files. Use --plt(s) or --output_plt to override the default plt location. --add_to_plt The plt is extended to also include the files specified with -c and -r. Use --plt(s) to specify which plt to start from, and --output_plt to specify where to put the plt. Note that the analysis might include files from the plt if they depend on the new files. This option only works with beam files. --remove_from_plt The information from the files specified with -c and -r is removed from the plt. Note that this may cause a re-analysis of the remaining dependent files. --check_plt Check the plt for consistency and rebuild it if it is not up-to-date. Actually, this option is of rare use as it is on by default. --no_check_plt (or -n) Skip the plt check when running Dialyzer. Useful when working with installed plts that never change. --plt_info Make Dialyzer print information about the plt and then quit. The plt can be specified with --plt(s). --get_warnings Make Dialyzer emit warnings even when manipulating the plt. Warnings are only emitted for files that are actually analyzed. --dump_callgraph file Dump the call graph into the specified file whose format is determined by the file name extension. Supported extensions are: raw, dot, and ps. If something else is used as file name extension, default format '.raw' will be used. --no_native (or -nn) Bypass the native code compilation of some key files that Dialyzer heuristically performs when dialyzing many files; this avoids the compilation time but it may result in (much) longer analysis time. --no_native_cache By default, Dialyzer caches the results of native compilation in the $XDG_CACHE_HOME/erlang/dialyzer_hipe_cache directory. XDG_CACHE_HOME defaults to $HOME/.cache. Use this option to disable caching. --fullpath Display the full path names of files for which warnings are emitted. --gui Use the GUI. Note: * denotes that multiple occurrences of these options are possible. ** options -D and -I work both from command-line and in the Dialyzer GUI; the syntax of defines and includes is the same as that used by "erlc". Warning options: -Wno_return Suppress warnings for functions that will never return a value. -Wno_unused Suppress warnings for unused functions. -Wno_improper_lists Suppress warnings for construction of improper lists. -Wno_fun_app Suppress warnings for fun applications that will fail. -Wno_match Suppress warnings for patterns that are unused or cannot match. -Wno_opaque Suppress warnings for violations of opacity of data types. -Wno_fail_call Suppress warnings for failing calls. -Wno_contracts Suppress warnings about invalid contracts. -Wno_behaviours Suppress warnings about behaviour callbacks which drift from the published recommended interfaces. -Wno_missing_calls Suppress warnings about calls to missing functions. -Wno_undefined_callbacks Suppress warnings about behaviours that have no -callback attributes for their callbacks. -Wunmatched_returns *** Include warnings for function calls which ignore a structured return value or do not match against one of many possible return value(s). -Werror_handling *** Include warnings for functions that only return by means of an exception. -Wrace_conditions *** Include warnings for possible race conditions. -Wunderspecs *** Warn about underspecified functions (those whose -spec is strictly more allowing than the success typing). -Wunknown *** Let warnings about unknown functions and types affect the exit status of the command line version. The default is to ignore warnings about unknown functions and types when setting the exit status. When using the Dialyzer from Erlang, warnings about unknown functions and types are returned; the default is not to return such warnings. The following options are also available but their use is not recommended: (they are mostly for Dialyzer developers and internal debugging) -Woverspecs *** Warn about overspecified functions (those whose -spec is strictly less allowing than the success typing). -Wspecdiffs *** Warn when the -spec is different than the success typing. *** Identifies options that turn on warnings rather than turning them off. The exit status of the command line version is: 0 - No problems were encountered during the analysis and no warnings were emitted. 1 - Problems were encountered during the analysis. 2 - No problems were encountered, but warnings were emitted.