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-rw-r--r--modules/packages/conan/reference.go155
1 files changed, 155 insertions, 0 deletions
diff --git a/modules/packages/conan/reference.go b/modules/packages/conan/reference.go
new file mode 100644
index 0000000..58f268b
--- /dev/null
+++ b/modules/packages/conan/reference.go
@@ -0,0 +1,155 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package conan
+
+import (
+ "fmt"
+ "regexp"
+ "strings"
+
+ "code.gitea.io/gitea/modules/log"
+ "code.gitea.io/gitea/modules/util"
+)
+
+const (
+ // taken from https://github.com/conan-io/conan/blob/develop/conans/model/ref.py
+ minChars = 2
+ maxChars = 51
+
+ // DefaultRevision if no revision is specified
+ DefaultRevision = "0"
+)
+
+var (
+ namePattern = regexp.MustCompile(fmt.Sprintf(`^[a-zA-Z0-9_][a-zA-Z0-9_\+\.-]{%d,%d}$`, minChars-1, maxChars-1))
+ revisionPattern = regexp.MustCompile(fmt.Sprintf(`^[a-zA-Z0-9]{1,%d}$`, maxChars))
+
+ ErrValidation = util.NewInvalidArgumentErrorf("could not validate one or more reference fields")
+)
+
+// RecipeReference represents a recipe <Name>/<Version>@<User>/<Channel>#<Revision>
+type RecipeReference struct {
+ Name string
+ Version string
+ User string
+ Channel string
+ Revision string
+}
+
+func NewRecipeReference(name, version, user, channel, revision string) (*RecipeReference, error) {
+ log.Trace("Conan Recipe: %s/%s(@%s/%s(#%s))", name, version, user, channel, revision)
+
+ if user == "_" {
+ user = ""
+ }
+ if channel == "_" {
+ channel = ""
+ }
+
+ if (user != "" && channel == "") || (user == "" && channel != "") {
+ return nil, ErrValidation
+ }
+
+ if !namePattern.MatchString(name) {
+ return nil, ErrValidation
+ }
+
+ v := strings.TrimSpace(version)
+ if v == "" {
+ return nil, ErrValidation
+ }
+ if user != "" && !namePattern.MatchString(user) {
+ return nil, ErrValidation
+ }
+ if channel != "" && !namePattern.MatchString(channel) {
+ return nil, ErrValidation
+ }
+ if revision != "" && !revisionPattern.MatchString(revision) {
+ return nil, ErrValidation
+ }
+
+ return &RecipeReference{name, v, user, channel, revision}, nil
+}
+
+func (r *RecipeReference) RevisionOrDefault() string {
+ if r.Revision == "" {
+ return DefaultRevision
+ }
+ return r.Revision
+}
+
+func (r *RecipeReference) String() string {
+ rev := ""
+ if r.Revision != "" {
+ rev = "#" + r.Revision
+ }
+ if r.User == "" || r.Channel == "" {
+ return fmt.Sprintf("%s/%s%s", r.Name, r.Version, rev)
+ }
+ return fmt.Sprintf("%s/%s@%s/%s%s", r.Name, r.Version, r.User, r.Channel, rev)
+}
+
+func (r *RecipeReference) LinkName() string {
+ user := r.User
+ if user == "" {
+ user = "_"
+ }
+ channel := r.Channel
+ if channel == "" {
+ channel = "_"
+ }
+ return fmt.Sprintf("%s/%s/%s/%s/%s", r.Name, r.Version, user, channel, r.RevisionOrDefault())
+}
+
+func (r *RecipeReference) WithRevision(revision string) *RecipeReference {
+ return &RecipeReference{r.Name, r.Version, r.User, r.Channel, revision}
+}
+
+// AsKey builds the additional key for the package file
+func (r *RecipeReference) AsKey() string {
+ return fmt.Sprintf("%s|%s|%s", r.User, r.Channel, r.RevisionOrDefault())
+}
+
+// PackageReference represents a package of a recipe <Name>/<Version>@<User>/<Channel>#<Revision> <Reference>#<Revision>
+type PackageReference struct {
+ Recipe *RecipeReference
+ Reference string
+ Revision string
+}
+
+func NewPackageReference(recipe *RecipeReference, reference, revision string) (*PackageReference, error) {
+ log.Trace("Conan Package: %v %s(#%s)", recipe, reference, revision)
+
+ if recipe == nil {
+ return nil, ErrValidation
+ }
+ if reference == "" || !revisionPattern.MatchString(reference) {
+ return nil, ErrValidation
+ }
+ if revision != "" && !revisionPattern.MatchString(revision) {
+ return nil, ErrValidation
+ }
+
+ return &PackageReference{recipe, reference, revision}, nil
+}
+
+func (r *PackageReference) RevisionOrDefault() string {
+ if r.Revision == "" {
+ return DefaultRevision
+ }
+ return r.Revision
+}
+
+func (r *PackageReference) LinkName() string {
+ return fmt.Sprintf("%s/%s", r.Reference, r.RevisionOrDefault())
+}
+
+func (r *PackageReference) WithRevision(revision string) *PackageReference {
+ return &PackageReference{r.Recipe, r.Reference, revision}
+}
+
+// AsKey builds the additional key for the package file
+func (r *PackageReference) AsKey() string {
+ return fmt.Sprintf("%s|%s|%s|%s|%s", r.Recipe.User, r.Recipe.Channel, r.Recipe.RevisionOrDefault(), r.Reference, r.RevisionOrDefault())
+}