meta: move to public package (#125)

We intend to expose package metadata through the code generation interface
#94. If so, it seems wrong to publically expose an internal package. Instead
of duplicating data we'll just make it public instead.

.goreleaser.yml

@@ -14,7 +14,7 @@ builds:
       - arm64
     ldflags:
       - -s -w
-      - -X github.com/mmcloughlin/addchain/internal/meta.buildversion={{ .Version }}
+      - -X github.com/mmcloughlin/addchain/meta.buildversion={{ .Version }}
 archives:
   - format_overrides:
       - goos: windows

cmd/addchain/cite.go

@@ -8,7 +8,7 @@ import (
 	"github.com/google/subcommands"
 
 	"github.com/mmcloughlin/addchain/internal/cli"
-	"github.com/mmcloughlin/addchain/internal/meta"
+	"github.com/mmcloughlin/addchain/meta"
 )
 
 // cite subcommand.

cmd/addchain/main.go

@@ -9,7 +9,7 @@ import (
 	"github.com/google/subcommands"
 
 	"github.com/mmcloughlin/addchain/internal/cli"
-	"github.com/mmcloughlin/addchain/internal/meta"
+	"github.com/mmcloughlin/addchain/meta"
 )
 
 func main() {

internal/tools/docgen/main.go

@@ -15,8 +15,8 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/mmcloughlin/addchain/internal/meta"
 	"github.com/mmcloughlin/addchain/internal/results"
+	"github.com/mmcloughlin/addchain/meta"
 )
 
 //go:generate bib generate -bib ../../../doc/references.bib -tmpl bibliography.tmpl -output zbibliography.go

internal/tools/release/flags.go

@@ -27,7 +27,7 @@ func (v *VarsFile) SetFlags(f *flag.FlagSet) {
 // DefaultPath returns the path to the default variables file in the meta
 // package. Returns the empty string if the path cannot be determined.
 func (v *VarsFile) DefaultPath() string {
-	return RepoPath("internal/meta/vars.go")
+	return RepoPath("meta/vars.go")
 }
 
 // Get variable from the meta variables file.