doc/go1.16: document BuildID in 'go list -export'
This corresponds to the feature in https://golang.org/cl/263542, since
this can be a noteworthy change to people writing tools to inspect Go
builds.
Also amend the wording to clarify that build IDs are for an entire
compiled package, not just their export data or object file.
Change-Id: I2eb295492807d5d2997a35e5e2371914cb3ad3a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/264158
Trust: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
diff --git a/doc/go1.16.html b/doc/go1.16.html
index 9e7ae1d..ba2f80f 100644
--- a/doc/go1.16.html
+++ b/doc/go1.16.html
@@ -131,6 +131,16 @@
being built.
</p>
+<h4 id="list-buildid">The <code>list</code> command</h4>
+
+<p><!-- golang.org/cl/263542 -->
+ When the <code>-export</code> flag is specified, the <code>BuildID</code>
+ field is now set to the build ID of the compiled package. This is equivalent
+ to running <code>go</code> <code>tool</code> <code>buildid</code> on
+ <code>go</code> <code>list</code> <code>-exported</code> <code>-f</code> <code>{{.Export}</code>,
+ but without the extra step.
+</p>
+
<h3 id="cgo">Cgo</h3>
<p> <!-- CL 252378 -->
diff --git a/src/cmd/go/alldocs.go b/src/cmd/go/alldocs.go
index 0827f0c..23d44dd 100644
--- a/src/cmd/go/alldocs.go
+++ b/src/cmd/go/alldocs.go
@@ -796,7 +796,7 @@
// BinaryOnly bool // binary-only package (no longer supported)
// ForTest string // package is only for use in named test
// Export string // file containing export data (when using -export)
-// BuildID string // build ID of the export data (when using -export)
+// BuildID string // build ID of the compiled package (when using -export)
// Module *Module // info about package's containing module, if any (can be nil)
// Match []string // command-line patterns matching this package
// DepOnly bool // package is only a dependency, not explicitly listed
diff --git a/src/cmd/go/internal/list/list.go b/src/cmd/go/internal/list/list.go
index 1c77e4d..89088f5 100644
--- a/src/cmd/go/internal/list/list.go
+++ b/src/cmd/go/internal/list/list.go
@@ -66,7 +66,7 @@
BinaryOnly bool // binary-only package (no longer supported)
ForTest string // package is only for use in named test
Export string // file containing export data (when using -export)
- BuildID string // build ID of the export data (when using -export)
+ BuildID string // build ID of the compiled package (when using -export)
Module *Module // info about package's containing module, if any (can be nil)
Match []string // command-line patterns matching this package
DepOnly bool // package is only a dependency, not explicitly listed
diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go
index 615b5ef..4c541b9 100644
--- a/src/cmd/go/internal/load/pkg.go
+++ b/src/cmd/go/internal/load/pkg.go
@@ -61,7 +61,7 @@
ConflictDir string `json:",omitempty"` // Dir is hidden by this other directory
ForTest string `json:",omitempty"` // package is only for use in named test
Export string `json:",omitempty"` // file containing export data (set by go list -export)
- BuildID string `json:",omitempty"` // build ID of the export data (set by go list -export)
+ BuildID string `json:",omitempty"` // build ID of the compiled package (set by go list -export)
Module *modinfo.ModulePublic `json:",omitempty"` // info about package's module, if any
Match []string `json:",omitempty"` // command-line patterns matching this package
Goroot bool `json:",omitempty"` // is this package found in the Go root?
