clarified names to emphasize suble differences in meaning;

--- a/src/Pure/Admin/build_history.scala	Sat Jan 28 20:21:55 2023 +0100
+++ b/src/Pure/Admin/build_history.scala	Sat Jan 28 20:50:45 2023 +0100
@@ -103,8 +103,8 @@
     afp_partition: Int = 0,
     isabelle_identifier: String = default_isabelle_identifier,
     ml_statistics_step: Int = 1,
-    component_repository: String = Components.default_component_repository,
-    components_base: String = Components.standard_components_base,
+    component_repository: String = Components.static_component_repository,
+    components_base: String = Components.dynamic_components_base,
     clean_platforms: Option[List[Platform.Family.Value]] = None,
     clean_archives: Boolean = false,
     fresh: Boolean = false,
@@ -402,7 +402,7 @@
     Command_Line.tool {
       var afp = false
       var multicore_base = false
-      var components_base = Components.standard_components_base
+      var components_base = Components.dynamic_components_base
       var heap: Option[Int] = None
       var max_heap: Option[Int] = None
       var multicore_list = List(default_multicore)
@@ -410,7 +410,7 @@
       var clean_platforms: Option[List[Platform.Family.Value]] = None
       var afp_partition = 0
       var clean_archives = false
-      var component_repository = Components.default_component_repository
+      var component_repository = Components.static_component_repository
       var more_settings: List[String] = Nil
       var more_preferences: List[String] = Nil
       var fresh = false
@@ -430,7 +430,7 @@
     -A           include $ISABELLE_HOME/AFP directory
     -B           first multicore build serves as base for scheduling information
     -C DIR       base directory for Isabelle components (default: """ +
-      quote(Components.standard_components_base) + """)
+      quote(Components.dynamic_components_base) + """)
     -H SIZE      minimal ML heap in MB (default: """ + default_heap + """ for x86, """ +
       default_heap * 2 + """ for x86_64)
     -M MULTICORE multicore configurations (see below)
@@ -440,7 +440,7 @@
     -P NUMBER    AFP partition number (0, 1, 2, default: 0=unrestricted)
     -Q           clean archives of downloaded components
     -R URL       remote repository for Isabelle components (default: """ +
-      Components.default_component_repository + """)
+      Components.static_component_repository + """)
     -U SIZE      maximal ML heap in MB (default: unbounded)
     -e TEXT      additional text for generated etc/settings
     -f           fresh build of Isabelle/Scala components (recommended)

--- a/src/Pure/Admin/isabelle_cronjob.scala	Sat Jan 28 20:21:55 2023 +0100
+++ b/src/Pure/Admin/isabelle_cronjob.scala	Sat Jan 28 20:50:45 2023 +0100
@@ -412,7 +412,7 @@
               afp_rev = afp_rev.getOrElse(""),
               options =
                 " -N " + Bash.string(task_name) + (if (i < 0) "" else "_" + (i + 1).toString) +
-                " -R " + Bash.string(Components.default_component_repository) +
+                " -R " + Bash.string(Components.static_component_repository) +
                 " -f " + r.build_history_options,
               args = "-o timeout=10800 " + r.args)
 

--- a/src/Pure/Admin/other_isabelle.scala	Sat Jan 28 20:21:55 2023 +0100
+++ b/src/Pure/Admin/other_isabelle.scala	Sat Jan 28 20:50:45 2023 +0100
@@ -75,7 +75,7 @@
   /* components */
 
   def init_components(
-    components_base: String = Components.standard_components_base,
+    components_base: String = Components.dynamic_components_base,
     catalogs: List[String] = Components.default_catalogs,
     components: List[String] = Nil
   ): List[String] = {
@@ -91,7 +91,7 @@
     echo: Boolean = false,
     clean_platforms: Option[List[Platform.Family.Value]] = None,
     clean_archives: Boolean = false,
-    component_repository: String = Components.default_component_repository
+    component_repository: String = Components.static_component_repository
   ): Unit = {
     val missing = Path.split(getenv("ISABELLE_COMPONENTS_MISSING"))
     for (path <- missing) {
@@ -154,7 +154,7 @@
     echo: Boolean = false,
     clean_platforms: Option[List[Platform.Family.Value]] = None,
     clean_archives: Boolean = false,
-    component_repository: String = Components.default_component_repository
+    component_repository: String = Components.static_component_repository
   ): Unit = {
     init_settings(other_settings)
     resolve_components(

--- a/src/Pure/System/components.scala	Sat Jan 28 20:21:55 2023 +0100
+++ b/src/Pure/System/components.scala	Sat Jan 28 20:50:45 2023 +0100
@@ -59,11 +59,11 @@
 
   /* component collections */
 
-  def default_component_repository: String =
+  def static_component_repository: String =
     Isabelle_System.getenv("ISABELLE_COMPONENT_REPOSITORY")
 
   val default_components_base: Path = Path.explode("$ISABELLE_COMPONENTS_BASE")
-  val standard_components_base: String = "${ISABELLE_COMPONENTS_BASE:-$USER_HOME/.isabelle/contrib}"
+  val dynamic_components_base: String = "${ISABELLE_COMPONENTS_BASE:-$USER_HOME/.isabelle/contrib}"
 
   val default_catalogs: List[String] = List("main")
   val optional_catalogs: List[String] = List("main", "optional")
@@ -125,7 +125,7 @@
     copy_dir: Option[Path] = None,
     clean_platforms: Option[List[Platform.Family.Value]] = None,
     clean_archives: Boolean = false,
-    component_repository: String = Components.default_component_repository,
+    component_repository: String = Components.static_component_repository,
     ssh: SSH.System = SSH.Local,
     progress: Progress = new Progress
   ): Unit = {