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Extend Bazel build support to bzlmod (#3792)

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Vertexwahn 2024-01-09 20:27:44 +01:00 committed by GitHub
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2
support/bazel/.bazelversion
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@ -1 +1 @@
6.1.2
7.0.0

2
support/bazel/BUILD.bazel
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@ -1,7 +1,7 @@
cc_library(
name = "fmt",
srcs = [
#"src/fmt.cc", # No C++ module support
#"src/fmt.cc", # No C++ module support, yet in Bazel (https://github.com/bazelbuild/bazel/pull/19940)
"src/format.cc",
"src/os.cc",
],

4
support/bazel/MODULE.bazel Normal file
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@ -0,0 +1,4 @@
module(
name = "fmt",
compatibility_level = 10,
)

33
support/bazel/README.md
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# Bazel support
To get [Bazel](https://bazel.build/) working with {fmt} you can copy the files `BUILD.bazel`, `WORKSPACE.bazel`, and `.bazelversion` from this folder (`support/bazel`) to the root folder of this project. This way {fmt} gets bazelized and can be used with Bazel (e.g. doing a `bazel build //...` on {fmt}).
To get [Bazel](https://bazel.build/) working with {fmt} you can copy the files `BUILD.bazel`,
`MODULE.bazel`, `WORKSPACE.bazel`, and `.bazelversion` from this folder (`support/bazel`) to the root folder of this project.
This way {fmt} gets bazelized and can be used with Bazel (e.g. doing a `bazel build //...` on {fmt}).
## Using {fmt} as a dependency
The following minimal example shows how to use {fmt} as a dependency within a Bazel project.
### Using Bzlmod
The [Bazel Central Registry](https://github.com/bazelbuild/bazel-central-registry/tree/main/modules/fmt) provides support for {fmt}.
For instance, to use {fmt} add to your `MODULE.bazel` file:
```
bazel_dep(name = "fmt", version = "10.2.1")
```
For a live-at-head approach, you can copy the contents of this repository and move the Bazel-related build files to the root folder of this project as described above and make use of `local_path_override`, e.g.:
```
local_path_override(
module_name = "fmt",
path = "../third_party/fmt",
)
```
### WORKSPACE system
The following minimal example shows how to use {fmt} as a dependency within a Bazel project,
that uses the traditional, repository-focused WORKSPACE system.
Note that in the long term Bazel will only support Bzlmod.
The following file structure is assumed:
@ -68,7 +93,3 @@ cc_binary(
The *BUILD* file defines a binary named `Demo` that has a dependency to {fmt}.
To execute the binary you can run `bazel run //:Demo`.
# Using Bzlmod
The [Bazel Central Registry](https://github.com/bazelbuild/bazel-central-registry/tree/main/modules/fmt) also provides support for {fmt}.