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revert changes from a2d1c5c. replace directives should not be used like this.

Jay Conrod 2020-01-24 11:37:43 -08:00
parent 1c091638bb
commit ace75253fc
1 changed files with 1 additions and 20 deletions
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21
Modules.md

@ -218,34 +218,15 @@ mymod
| `-- bar.go
|-- foo
| `-- foo.go
|-- zot.go
`-- go.mod
```
In Go source code, packages are imported using the full path including the module path. For example, if in our example above, we declared the modile identity in `go.mod` as `module github.com/user/mymod`, a consumer could do:
In Go source code, packages are imported using the full path including the module path. For example, if in our example above, we declared the module identity in `go.mod` as `module github.com/user/mymod`, a consumer could do:
```
import "github.com/user/mymod/bar"
```
This imports package `bar` from the module `github.com/user/mymod`.
When including packages from other packages within the same repository, you probably want to use `replace` to tell `go build` to look for those packages in the current directory, rather than re-cloning the public repo. In the example above, for instance, you'd add a line like this to your `go.mod` file:
```
replace (
github.com/user/mymod/bar => ./bar
github.com/user/mymod/foo => ./foo
)
```
And then in `zot.go`, you'd import the packages like this:
```
import (
"github.com/user/mymod/bar"
"github.com/user/mymod/foo"
)
```
`exclude` and `replace` directives only operate on the current (“main”) module. `exclude` and `replace` directives in modules other than the main module are ignored when building the main module. The `replace` and `exclude` statements, therefore, allow the main module complete control over its own build, without also being subject to complete control by dependencies. (See FAQ [below](https://github.com/golang/go/wiki/Modules#when-should-i-use-the-replace-directive) for a discussion of when to use a `replace` directive).
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