feat: added auto-generation of a command line docs page (#113)

resolves #89 [#89]

CMakeLists.txt

@@ -92,3 +92,12 @@ if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     target_link_libraries(pluginval PRIVATE
         -static-libstdc++)
 endif()
+
+set (cmdline_docs_out "${CMAKE_CURRENT_LIST_DIR}/docs/Command line options.md")
+
+add_custom_command (OUTPUT "${cmdline_docs_out}"
+                    COMMAND pluginval --help > "${cmdline_docs_out}"
+                    COMMENT "Regenerating Command line options.md..."
+                    USES_TERMINAL)
+
+add_custom_target (PluginvalDocs DEPENDS "${cmdline_docs_out}")

docs/Command line options.md

@@ -0,0 +1,51 @@
+//==============================================================================
+pluginval
+JUCE v7.0.2
+
+Description: 
+  Validate plugins to test compatibility with hosts and verify plugin API conformance
+
+Usage: 
+  --validate [pathToPlugin]
+    Validates the plugin at the given path.
+    N.B. the --validate flag is optional if the path is the last argument. This enables you to validate a plugin with simply "pluginval path_to_plugin".
+  --strictness-level [1-10]
+    Sets the strictness level to use. A minimum level of 5 (also the default) is recomended for compatibility. Higher levels include longer, more thorough tests such as fuzzing.
+  --random-seed [hex or int]
+    Sets the random seed to use for the tests. Useful for replicating test environments.
+  --timeout-ms [numMilliseconds]
+    Sets a timout which will stop validation with an error if no output from any test has happened for this number of ms.
+    By default this is 30s but can be set to -1 to never timeout.
+  --verbose
+    If specified, outputs additional logging information. It can be useful to turn this off when building with CI to avoid huge log files.
+  --skip-gui-tests
+    If specified, avoids tests that create GUI windows, which can cause problems on headless CI systems.
+  --repeat [num repeats]
+    If specified repeats the tests a given number of times. Note that this does not delete and re-instantiate the plugin for each repeat.  --randomise
+    If specified the tests are run in a random order per repeat.  --data-file [pathToFile]
+    If specified, sets a path to a data file which can be used by tests to configure themselves. This can be useful for things like known audio output.
+  --output-dir [pathToDir]
+    If specified, sets a directory to store the log files. This can be useful for continuous integration.
+  --disabled-tests [pathToFile]
+    If specified, sets a path to a file that should have the names of disabled tests on each row.
+  --sample-rates [list of comma separated sample rates]
+    If specified, sets the list of sample rates at which tests will be executed (default=44100,48000,96000)
+  --block-sizes [list of comma separated block sizes]
+    If specified, sets the list of block sizes at which tests will be executed (default=64,128,256,512,1024)
+  --vst3validator [pathToValidator]
+    If specified, this will run the VST3 validator as part of the test process.
+  --version
+    Print pluginval version.
+
+Exit code: 
+  0 if all tests complete successfully
+  1 if there are any errors
+
+Additionally, you can specify any of the command line options as environment varibles by removing prefix dashes, converting internal dashes to underscores and captialising all letters e.g. "--skip-gui-tests" > "SKIP_GUI_TESTS=1", "--timeout-ms 30000" > "TIMEOUT_MS=30000"
+Specifying specific command-line options will override any environment variables set for that option.
+
+ pluginval --version                  Prints the current version number
+ pluginval --help|-h                  Prints the list of commands
+ pluginval --validate [pathToPlugin]  Validates the file (or IDs for AUs).
+ pluginval --run-tests                Runs the internal unit tests.
+