worker: Add search job implementation to worker client

This is similar to the depsolve job, and it shares the solver (which
supports locking, as does DNF itself). This will allow searching for
specific package names, names with globs, or names as substrings of
other names using * as the wildcard.

Related: RHEL-60136

internal/worker/json.go

@@ -217,6 +217,25 @@ type DepsolveJobResult struct {
 	JobResult
 }
 
+// SearchPackagesJob defines the parameters for a dnf metadata search
+// It will search the included repositories for packages matching the
+// package strings
+// Package names support globs using '*' and will search for a substring
+// match if '*foopkg*' is used.
+type SearchPackagesJob struct {
+	Packages         []string           `json:"packages"`
+	Repositories     []rpmmd.RepoConfig `json:"repos"`
+	ModulePlatformID string             `json:"module_platform_id"`
+	Arch             string             `json:"arch"`
+	Releasever       string             `json:"releasever"`
+}
+
+// SearchPackagesJobResult returns the details of the search packages
+type SearchPackagesJobResult struct {
+	Packages rpmmd.PackageList `json:"packages"`
+	JobResult
+}
+
 type ManifestJobByID struct{}
 
 // OSBuildComposerDepModule contains information about a module used by

internal/worker/server.go

@@ -33,6 +33,7 @@ const (
 	JobTypeKojiInit         string = "koji-init"
 	JobTypeKojiFinalize     string = "koji-finalize"
 	JobTypeDepsolve         string = "depsolve"
+	JobTypeSearchPackages   string = "search-packages"
 	JobTypeManifestIDOnly   string = "manifest-id-only"
 	JobTypeContainerResolve string = "container-resolve"
 	JobTypeFileResolve      string = "file-resolve"