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cmd/go: explain versions better

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Summarize the desiderata for selecting versions of remote packages to get.
Fixes #3394.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5902058
This commit is contained in:
Rob Pike 2012-03-26 17:47:39 +11:00
parent bfdc45a456
commit 6421bdeb71
2 changed files with 18 additions and 2 deletions
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10
src/cmd/go/doc.go
View File

@ -225,7 +225,15 @@ The -u flag instructs get to use the network to update the named packages
and their dependencies. By default, get uses the network to check out
missing packages but does not use it to look for updates to existing packages.
TODO: Explain versions better.
When checking out or updating a package, get looks for a branch or
tag that matches the locally installed version of Go. If the local
version "is release.rNN", it searches for "go.rNN". (For an
installation using Go version "weekly.YYYY-MM-DD", it searches for a
package version labeled "go.YYYY-MM-DD".) If the desired version
cannot be found but others exist with labels in the correct format,
get retrieves the most recent version before the desired label.
Finally, if all else fails it retrieves the most recent version of
the package.
For more about specifying packages, see 'go help packages'.

10
src/cmd/go/get.go
View File

@ -36,7 +36,15 @@ The -u flag instructs get to use the network to update the named packages
and their dependencies. By default, get uses the network to check out
missing packages but does not use it to look for updates to existing packages.
TODO: Explain versions better.
When checking out or updating a package, get looks for a branch or
tag that matches the locally installed version of Go. If the local
version "is release.rNN", it searches for "go.rNN". (For an
installation using Go version "weekly.YYYY-MM-DD", it searches for a
package version labeled "go.YYYY-MM-DD".) If the desired version
cannot be found but others exist with labels in the correct format,
get retrieves the most recent version before the desired label.
Finally, if all else fails it retrieves the most recent version of
the package.
For more about specifying packages, see 'go help packages'.