The Meson Build System
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238 lines
5.2 KiB
238 lines
5.2 KiB
.TH MESON "1" "March 2024" "meson 1.4.0" "User Commands" |
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.SH NAME |
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meson - a high productivity build system |
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.SH DESCRIPTION |
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Meson is a build system designed to optimize programmer |
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productivity. It aims to do this by providing simple, out-of-the-box |
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support for modern software development tools and practices, such as |
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unit tests, coverage reports, Valgrind, Ccache and the like. |
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The main Meson executable provides many subcommands to access all |
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the functionality. |
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.SH The setup command |
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Using Meson is simple and follows the common two-phase |
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process of most build systems. First you run Meson to |
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configure your build: |
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.B meson setup [ |
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.I options |
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.B ] [ |
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.I build directory |
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.B ] [ |
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.I source directory |
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.B ] |
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Note that the build directory must be different from the source |
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directory. Meson does not support building inside the source directory |
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and attempting to do that leads to an error. |
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After a successful configuration step you can build the source by |
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running the actual build command in the build directory. The default |
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backend of Meson is Ninja, which can be invoked like this. |
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\fBninja [\fR \fItarget\fR \fB]\fR |
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You only need to run the Meson command once: when you first configure |
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your build dir. After that you just run the build command. Meson will |
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autodetect changes in your source tree and regenerate all files |
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needed to build the project. |
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The setup command is the default operation. If no actual command is |
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specified, Meson will assume you meant to do a setup. That means |
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that you can set up a build directory without the setup command |
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like this: |
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.B meson [ |
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.I options |
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.B ] [ |
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.I build directory |
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.B ] [ |
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.I source directory |
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.B ] |
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.SS "options:" |
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.TP |
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\fB\-\-version\fR |
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print version number |
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.TP |
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\fB\-\-help\fR |
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print command line help |
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.SH The configure command |
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.B meson configure |
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provides a way to configure a Meson project from the command line. |
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Its usage is simple: |
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.B meson configure [ |
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.I build directory |
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.B ] [ |
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.I options to set |
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.B ] |
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If build directory is omitted, the current directory is used instead. |
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If no parameters are set, |
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.B meson configure |
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will print the value of all build options to the console. |
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To set values, use the \-D command line argument like this. |
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.B meson configure \-Dopt1=value1 \-Dopt2=value2 |
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.SH The introspect command |
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Meson introspect is a command designed to make it simple to integrate with |
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other tools, such as IDEs. The output of this command is in JSON. |
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.B meson introspect [ |
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.I build directory |
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.B ] [ |
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.I option |
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.B ] |
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If build directory is omitted, the current directory is used instead. |
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.SS "options:" |
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.TP |
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\fB\-\-targets\fR |
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print all top level targets (executables, libraries, etc) |
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\fB\-\-target\-files\fR |
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print the source files of the given target |
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.TP |
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\fB\-\-buildsystem\-files\fR |
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print all files that make up the build system (meson.build, meson.options, meson_options.txt etc) |
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.TP |
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\fB\-\-tests\fR |
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print all unit tests |
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.TP |
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\fB\-\-help\fR |
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print command line help |
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.SH The test command |
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.B meson test |
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is a helper tool for running test suites of projects using Meson. |
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The default way of running tests is to invoke the default build command: |
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\fBninja [\fR \fItest\fR \fB]\fR |
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.B meson test |
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provides a richer set of tools for invoking tests. |
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.B meson test |
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automatically rebuilds the necessary targets to run tests when used with the Ninja backend. |
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Upon build failure, |
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.B meson test |
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will return an exit code of 125. |
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This return code tells |
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.B git bisect run |
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to skip the current commit. |
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Thus bisecting using git can be done conveniently like this. |
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.B git bisect run meson test -C build_dir |
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.SS "options:" |
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.TP |
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\fB\-\-repeat\fR |
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run tests as many times as specified |
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.TP |
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\fB\-\-gdb\fR |
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run tests under gdb |
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.TP |
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\fB\-\-list\fR |
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list all available tests |
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.TP |
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\fB\-\-wrapper\fR |
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invoke all tests via the given wrapper (e.g. valgrind) |
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.TP |
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\fB\-C\fR |
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Change into the given directory before running tests (must be root of build directory). |
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.TP |
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\fB\-\-suite\fR |
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run tests in this suite |
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.TP |
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\fB\-\-no\-suite\fR |
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do not run tests in this suite |
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.TP |
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\fB\-\-no\-stdsplit\fR |
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do not split stderr and stdout in test logs |
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.TP |
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\fB\-\-benchmark\fR |
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run benchmarks instead of tests |
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.TP |
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\fB\-\-logbase\fR |
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base of file name to use for writing test logs |
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.TP |
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\fB\-\-num-processes\fR |
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how many parallel processes to use to run tests |
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.TP |
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\fB\-\-verbose\fR |
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do not redirect stdout and stderr |
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\fB\-t\fR |
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a multiplier to use for test timeout values (usually something like 100 for Valgrind) |
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.TP |
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\fB\-\-setup\fR |
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use the specified test setup |
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.SH The wrap command |
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Wraptool is a helper utility to manage source dependencies |
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using the online wrapdb service. |
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.B meson wrap < |
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.I command |
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.B > [ |
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.I options |
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.B ] |
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You should run this command in the top level source directory |
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of your project. |
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.SS "Commands:" |
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.TP |
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\fBlist\fR |
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list all available projects |
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.TP |
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\fBsearch\fR |
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search projects by name |
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.TP |
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\fBinstall\fR |
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install a project with the given name |
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.TP |
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\fBupdate\fR |
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update the specified project to latest available version |
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.TP |
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\fBinfo\fR |
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show available versions of the specified project |
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.TP |
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\fBstatus\fR |
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show installed and available versions of currently used subprojects |
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.SH EXIT STATUS |
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.TP |
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.B 0 |
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Successful. |
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.B 1 |
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Usage error, or an error parsing or executing meson.build. |
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.B 2 |
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Internal error. |
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.TP |
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.B 125 |
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.B meson test |
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could not rebuild the required targets. |
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.TP |
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.SH SEE ALSO |
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http://mesonbuild.com/ |
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https://wrapdb.mesonbuild.com/
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