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This adds the libqb_http API, which is designed to support HTTP and HTTPS usage from QB64-PE source. The design consists of a single thread which services all the HTTP(s) connections. There are then various libqb_http APIs exposed that allow interacting with this thread to create a new connection, query connection status, read data, or close the connection. Internally the thread makes use of the curl_multi interface to allow a single thread to service multiple HTTP(s) connections in parallel. This means you can _OPENCLIENT() multiple HTTP connection in a row and all of them will be serviced at the same time in whatever order data is available. HTTP is optional and selected via a Makefile setting. A stub is swapped in if HTTP support is not used, which avoids need to add another build flag to libqb.cpp.
156 lines
13 KiB
Markdown
156 lines
13 KiB
Markdown
Build System
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============
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Build Process
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-------------
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This describes the process that goes on to compile a QB64 program into an executable.
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1. `QB64-PE` takes the QB64 source code and produces C++ source code for the program. That C++ source is placed into various files and goes into `./internal/temp`.
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2. `make` is used to run the `Makefile` at the root of this repository. It is supplied the `OS` parameter, the `EXE` parameter for the final executable name, and a variety of `DEP_*` parameters depending on what dependencies the QB64 program requires.
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1. 3rd party dependencies located in `./internal/c/parts/` are compiled if requested. Each of these has its own `build.mk` file that includes the `make` logic to build that dependency.
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2. `./internal/c/libqb.cpp` is compiled with various C preprocessor flags depending on the provided `DEP_*` flags. The name is changed depending on the settings it is compiled with so that we don't accidentally use a libqb compiled with different settings.
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3. `./internal/qbx.cpp` is compiled, which uses `#include` to pull in the generated C++ source located in `./internal/temp`.
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4. All of `qbx.o`, `libqb.o`, and the 3rd party dependencies are linked together to produce the executable.
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5. Debug symbols are stripped from the executable to make it smaller, the symbols are stored into a symbol file ending in `.sym` in `./internal/temp`.
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CI Process
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This describes how QB64-PE itself is built by the CI process to produce a release of QB64-PE. The actual build scripts that do all of this are located in `.ci/`.`
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1. Before CI ever begins, `./internal/source/` contains the generated C++ source of a previous version of `qb64pe.bas`.
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2. `.ci/calculate_version.sh` is run to determine what version this CI build should be considered. That information is written to `./internal/version.txt`, if it is a release version `./internal/version.txt` is removed.
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3. `qb64pe_bootstrap` is compiled from `./internal/source`
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1. `make` is used to call the `Makefile` with the proper `OS` setting, `EXE=qb64pe_bootstrap`, and `BUILD_QB64=y`.
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2. The Makefile will take care of copying `./internal/source` into `./internal/temp` and compiling QB64-PE with the proper settings.
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4. `qb64pe_bootstrap` is used to compile `./source/qb64pe.bas` into a proper `qb64pe` executable
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1. We run `./qb64pe_bootstrap -x ./source/qb64pe.bas` to compile QB64-PE. This compiles QB64-PE the same way as a regular QB64 program as detailed in 'Build Process'
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5. `./internal/source` is cleared out and, excluding a few files, the contents of `./internal/temp` are copied into `./internal/source` as the new generated C++ source of QB64-PE.
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6. `tests/run_tests.sh` is run to test the compiled version of QB64-PE. A failure of these tests fails the build at this stage.
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7. `.ci/make-dist.sh` is run to produce the distribution of QB64-PE, which is stored as a build artifact and potentially a release artifact..
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1. The contents of the distribution depends on the OS it is being created for.
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1. The Windows distribution contains a precompiled copy of QB64-PE as `qb64pe.exe` and can be used immediately.
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2. The Linux and OSX distributions do not contain a precompiled copy of QB64-PE. Those version come with a "setup" script that has to be run which builds QB64-PE based on the contents of `./internal/source`.
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8. `tests/run_dist_tests.sh` is run to verify the distribution of QB64-PE works correctly.
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9. If this is a CI build of `main` and `./internal/source` has changed due to the newly compiled version, then `git` is used to commit and push the updated version of `./internal/source` to the GitHub repo.
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Repository Layout
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-----------------
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- `.ci/` - All files in this folder are related to the CI build process.
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- `bootstrap.bat`
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- Windows only, Downloads MinGW compiler, builds the precompiled version of QB64-PE located in `./internal/source` as `qb64pe_bootstrap.exe`.
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- `bootstrap.sh`
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- Linux and OSX, builds the precompiled version of QB64-PE located in `./internal/source` as `qb64pe_bootstrap.exe`.
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- `compile.bat`
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- Uses `qb64pe_bootstrap.exe` to build `./source/qb64pe.bas`. This compiled QB64-PE is the released `qb64pe.exe`.
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- `compile.sh`
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- Uses `qb64pe_bootstrap` to build `./source/qb64pe.bas`. This built QB64-PE is what is used for testing, and the sources from this QB64-PE are placed into `./internal/source`.
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- `make-dist.sh`
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- Copies all the relevant parts of QB64-PE into a new folder, which can be distributed as a release.
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- `push-internal-source.sh`
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- If `./internal/source` is different after building `./source/qb64pe.bas`, then this will automatically push those changes to the repository to update the sources used to build `qb64pe_bootstrap`.
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- `internal/`
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- `c/` - Contains everything related to the C/C++ source files for QB64-PE.
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- `c_compiler/`
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- On Windows, this folder is populated with the MinGW C++ compiler during the CI process (or when using `setup_win.bat`.
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- `parts/`
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- Contains the sources to many of the dependencies that QB64 uses. Most of the dependencies have a `build.mk` file that is used by the main `Makefile` to build them.
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- `source/`
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- Contains a copy of the generated C++ source of a previous version of QB64-PE. This is used to build a copy of QB64-PE using only a C++ ccompiler. This is updated automatically via the CI process.
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- `version.txt`
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- QB64-PE checks this file to determine if there is a version tag (`-foobar` on the end of the version) for this version of QB64-PE.
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- `source/`
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- Contains the QB64 source to QB64-PE itself.
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- `tests/` - Contains the tests run on QB64-PE during CI to verify changes.
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- `compile_tests/`
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- Testcases related to specific dependencies that QB64 can pull in. These tests are largely intended to test that QB64-PE and the Makefile correctly pulls in the proper dependencies.
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- `c`
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- The source for the C++-based tests.
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- `qbasic_testcases/`
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- A variety of collected QB64 sample programs
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- `dist/`
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- Test files for distribution tests.
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- `compile_tests.sh`
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- Runs the `compile_tests` test cases.
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- `qbasic_tests.sh`
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- Compiled all the testcases in `qbasic_testcases` and verifies they compile successfully.
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- `dist_tests.sh`
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- Verifies the output of `make-dist.sh` is a functioning distribution of QB64-PE
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- `run_dist_tests.sh`
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- Runs the distribution test collecitons.
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- `run_tests.sh`
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- Runs all individual test collections.
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- `run_c_tests.sh`
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- Runs all the C++ test cases.
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- `setup_lnx.sh`
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- Used as part of the Linux release to install dependencies and compile QB64-PE.
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- `setup_osx.command`
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- Used as part of the OSx release to compile QB64-PE.
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- `setup_win.bat`
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- Used only for compiled QB64-PE directly from a clone of the repository (not a release, we distribute QB64-PE already compiled in the Windows release)
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- `Makefile`
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- Used for building QB64 programs.
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Makefile Usage and Parameters
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-----------------------------
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> Note: These parameters are not guaranteed to stay the same. The 'setup' scripts and QB64-PE are the only things intended to call the Makefile directly.
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These flags control some basic settings for how the `Makefile` can compile the program.
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| Parameter | Default Value | Valid Values | Required | Description |
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| :-------- | :-----------: | :----------: | :------: | :---------- |
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| `OS` | None | `win`, `lnx`, or `osx` | Yes | Indicates to the Makefile which OS it is being used to compile for. Controls what utilities the Makefile assumes is available and where they are located, and also platform dependent compiler settings. |
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| `BUILD_QB64` | None | `y` | No | If set then the Makefile will build the QB64-PE source located in `./internal/source`. If `EXE` is not specified, that is set to `qb64pe`. Dependency settings for QB64-PE are set automatically. |
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| `EXE` | None | Executable name | Yes, if not using `BUILD_QB64` | Specifies the name of the executable to build. If on Windows, it should include `.exe` on the end. Spaces in the filename should be escaped with `\` |
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| `TEMP_ID` | None | blank, or an integer | No | Controls the name of `qbx*.cpp` and `./internal/temp*` that are used for compilation. This is mainly relevant for multiple instances of the IDE, where the second instance compiles to `./internal/temp2` and tells the Makefile which to use. Further instances will use higher numbers. |
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| `CXXFLAGS_EXTRA` | None | Collection of C++ compiler flags | No | These flags are provided to the compiler when building the C++ files. This includes the generate source files, but also files like `libqb.cpp`. |
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| `CXXLIBS_EXTRA` | None | Collection of linker flags | No | These flags are provided to the compiler (`g++` or `clang++`) when linking the final executable. Typically includes the `-l` library flags |
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| `CFLAGS_EXTRA` | None | Collection of C compiler flags | No | These flags are provided to the compiler when building C files |
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| `STRIP_SYMBOLS` | None | `n` | No | Symbols are stripped by default, if this is `n` then symbols will not be stripped from the executable |
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| `GENERATE_LICENSE` | None | `y` | No | Generates a `.license.txt` file next to your executable, which contains all the licenses that apply to the executable |
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| `LICENSE` | `$(EXE).license.txt`| License file name | No | Specifies an alternative filename for the license file |
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These flags controls whether certain dependencies are compiled in or not. All of them are blank by default and should be set to `y` to use them. Note that the program being built may not compile if you supply the wrong dependency settings - may of them supply functions that will not be defined if the dependency is required, and some of them (Ex. `DEP_GL`) have requirements the program being compiled must meet.
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| Parameter | Description |
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| :-------- | :---------- |
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| `DEP_GL` | Enables the `_GL` support |
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| `DEP_SCREENIMAGE` | Enables `_SCREENIMAGE` support, also implies `DEP_IMAGE_CODEC=y` |
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| `DEP_IMAGE_CODEC` | Enables `_LOADIMAGE` and the various image decoders. |
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| `DEP_SOCKETS` | Adds networking support. |
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| `DEP_PRINTER` | Adds `_PRINTIMAGE` support. |
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| `DEP_ICON` | Adds `_ICON` support. |
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| `DEP_ICON_RC` | Adds `$EXEICON` and `$VERSIONINFO` support, compiles `.rc` file into the executable on Windows |
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| `DEP_FONT` | Enables various `_FONT` related support. |
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| `DEP_DEVICEINPUT` | Enables game controller input support. |
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| `DEP_AUDIO_CONVERSION` | Includes the audio resampler (Only relevant when audio decode or out is enabled) |
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| `DEP_AUDIO_DECODE` | Pulls in sound support for things like `_SNDOPEN` and also support for opening the support sound formats. |
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| `DEP_AUDIO_OUT` | Pulls in sound support for playing sounds via `PLAY`, `_SNDPLAY`, and various other functions that makes sounds. |
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| `DEP_ZLIB` | Adds `_DEFLATE` and `_INFLATE` support. |
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| `DEP_DATA` | Compiles in data produced via `DATA` statements. |
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| `DEP_CONSOLE` | On Windows, this gives the program console support (graphical support is still allowed) |
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| `DEP_CONSOLE_ONLY` | Same as `DEP_CONSOLE`, but also removes GLUT and graphics support. |
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| `DEP_AUDIO_MINIAUDIO` | Enables the miniaudio backend. Should not be used with the other `DEP_AUDIO` switches which enable the old backend. |
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| `DEP_HTTP` | Enables http support via libcurl. Should only be used if `DEP_SOCKETS` is on. |
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Versioning
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QB64 Phoenix Edition follows SemVer, which means that major releases indicate a breaking change, minor releases indicate new features, and patch release indicates bug fixes.
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- Release versions of QB64-PE will have just a version number in the form `X.Y.Z`. All other versions of QB64-PE will have some kind of 'tag' at the end of the version, which is arbitrary text after a `-` placed on the end of the version.
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- CI versions get a tag in the form of `-XX-YYYYYYYY`, where `XX` is the number of commits since the last release, and `YYYYYYYY` is the first 8 digits of the commit hash of that build.
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- If you build the repository directly, you would get an `-UNKNOWN` version, which indicates that due to not running through the CI process we do not know what particular version (if any) that you are using.
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Release Process
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---------------
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1. Update the version listed in `./source/global/version.bas`. Update both the `Version$` label and also the `$VERSIONINFO` entries.
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2. After `version.bas` is compiled, wait for the CI build on `main` and also update of `./internal/source` to finish.
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3. Tag the latest commit in `main` with the format of `vX.Y.Z` where `X.Y.Z` is the version being released.
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4. Wait for the tag build to finish, it will create a draft release for the new version.
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5. Edit the draft release to include release notes, and publish it when ready.
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