Remove empty strings from AutoYaST values

service/Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    agama-yast (19)
+    agama-yast (19.devel14.752a116e9)
       cfa (~> 1.0.2)
       cfa_grub2 (~> 2.0.0)
       cheetah (~> 1.0.0)

service/lib/agama/autoyast/profile_fetcher.rb

@@ -31,14 +31,28 @@ module AutoYaST
     #
     # It generates an AutoYaST profile that can be converted into an Agama configuration using the
     # {Agama::AutoYaST::Converter} class.
+    #
+    # # Removing empty strings
+    #
+    # It is really uncommon to use empty strings as values in AutoYaST.
+    # Those values are not a problem in AutoYaST, but they can cause
+    # problems in Agama. For instance, an empty <keymap /> element is ignored
+    # in AutoYaST, but not in Agama.
+    #
+    # In order to make the migration from AutoYaST to Agama easier, the
+    # conversion removes empty string values. The exception is the
+    # <partitioning /> section, which is handled by yast2-storage-ng.
+    # Actually, this section contains the <subvolumes_prefix />, which
+    # can be set to an empty string as described in the AutoYaST documentation.
+    #
     class ProfileFetcher
       # @param profile_url [String] Profile URL
       def initialize(profile_url)
         @profile_url = profile_url
       end
 
       # Converts the profile into a set of files that Agama can process.
-      # @return [Hash,nil] an evaluated AutoYaST profile
+      # @return [ProfileHash,nil] an evaluated AutoYaST profile
       def fetch
         import_yast
         read_profile
@@ -71,7 +85,7 @@ def read_profile
           FileUtils.rm(Yast::AutoinstConfig.modified_profile)
         end
 
-        Yast::ProfileHash.new(Yast::Profile.current)
+        Yast::ProfileHash.new(clean_profile(Yast::Profile.current))
       end
 
       def run_pre_scripts
@@ -94,6 +108,55 @@ def tmp_profile_path
         )
       end
 
+      # Removes empty string values from the profile.
+      #
+      # @param profile [Hash]
+      # @return [Hash]
+      def clean_profile(profile)
+        profile.each_with_object({}) do |(key, value), all|
+          if key == "partitioning"
+            all[key] = value
+          else
+            new_value = clean_value(value)
+            all[key] = new_value unless new_value.nil?
+          end
+        end
+      end
+
+      def clean_value(value)
+        case value
+        when Array
+          clean_array(value)
+
+        when Hash
+          clean_hash(value)
+
+        when String
+          value unless value.empty?
+
+        else
+          value
+        end
+      end
+
+      def clean_array(array)
+        array.map do |e|
+          if e.is_a?(Hash)
+            clean_value(e)
+          else
+            e
+          end
+        end
+      end
+
+      def clean_hash(hash)
+        new_hash = hash.each_with_object({}) do |(key, value), all|
+          new_value = clean_value(value)
+          all[key] = new_value unless new_value.nil?
+        end
+        new_hash unless new_hash.empty?
+      end
+
       def import_yast
         Yast.import "AutoinstConfig"
         Yast.import "AutoinstScripts"

service/package/rubygem-agama-yast.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Mar 18 23:44:14 UTC 2026 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>
+
+- Remove empty strings when importing an AutoYaST profile
+  (gh#agama-project/agama#3302).
+
 -------------------------------------------------------------------
 Tue Mar 17 12:15:21 UTC 2026 - Imobach Gonzalez Sosa <igonzalezsosa@suse.com>
 

service/test/agama/autoyast/profile_fetcher_test.rb

@@ -147,4 +147,30 @@
       subject.fetch
     end
   end
+
+  context "when the profile contains empty strings as values" do
+    let(:profile_name) { "empty-values.xml" }
+
+    it "removes them if they are not in the \"partitioning\" section" do
+      result = subject.fetch
+
+      user = result["users"].first
+      expect(user["username"]).to eq("root")
+      expect(user).to_not have_key("password")
+
+      language = result["language"]
+      expect(language).to have_key("language")
+      expect(language).to_not have_key("languages")
+
+      drive = result["partitioning"].first
+      partition = drive["partitions"].first
+      expect(partition).to have_key("subvolumes_prefix")
+    end
+
+    it "removes empty sections" do
+      result = subject.fetch
+
+      expect(result).to_not have_key("keyboard")
+    end
+  end
 end

service/test/fixtures/profiles/empty-values.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE profile>
+<profile xmlns="http://www.suse.com/1.0/yast2ns" xmlns:config="http://www.suse.com/1.0/configns">
+  <software>
+    <products config:type="list">
+      <product>Tumbleweed</product>
+    </products>
+    <patterns config:type="list">
+      <pattern>enhanced_base</pattern>
+    </patterns>
+  </software>
+
+  <language>
+    <language>es_ES.UTF-8</language>
+    <languages></languages>
+  </language>
+
+  <timezone>
+    <timezone>Atlantic/Canary</timezone>
+  </timezone>
+
+  <keyboard>
+    <keymap></keymap>
+  </keyboard>
+
+  <partitioning t="list">
+    <drive t="map">
+      <device>/dev/system</device>
+      <enable_snapshots t="boolean">true</enable_snapshots>
+      <partitions t="list">
+        <partition t="map">
+          <create t="boolean">true</create>
+          <create_subvolumes t="boolean">true</create_subvolumes>
+          <filesystem t="symbol">btrfs</filesystem>
+          <format t="boolean">true</format>
+          <subvolumes_prefix><![CDATA[]]></subvolumes_prefix>
+        </partition>
+      </partitions>
+    </drive>
+  </partitioning>
+
+  <users config:type="list">
+    <user>
+      <username>root</username>
+      <encrypted config:type="boolean">false</encrypted>
+      <user_password></user_password>
+      <authorized_keys config:type="list">
+        <listentry>ssh-rsa ...</listentry>
+      </authorized_keys>
+    </user>
+    <user>
+      <username>jane</username>
+      <uid>1000</uid>
+      <fullname>Jane Doe</fullname>
+      <encrypted config:type="boolean">false</encrypted>
+      <user_password>12345678</user_password>
+    </user>
+  </users>
+</profile>