more database content, e.g. for monitoring;

more explicit workers, e.g. for monitoring;

tuned;

tuned;

clarified worker state: always maintain database content via worker_uuid; clarified message;

clarified signature: prefer Build_Process.Context for parameters;

support for "isabelle build -j0": require external workers to make progress;

follow renaming of various Isabelle command-line tools (see b975f5aaf6b8 and before);

require the presence of free variables to do abduction in Sledgehammer

removed exercise solution

merged

new theory Tree_Rotations

proper tool name (amending cbb49fe8e5a2);

proper file-name (amending b975f5aaf6b8);

tuned headers;

eliminated suspicious Unicode characters;

tuned whitespace;

renamed "isabelle build_docker" to "isabelle docker_build" (unrelated to "isabelle build");

renamed administrative tools to build Isabelle components (unrelated to "isabelle build");

renamed "isabelle build_components" to "isabelle components_build" (unrelated to "isabelle build");

sort lines;

renamed "isabelle log" to "isabelle build_log";

clarified structure;

tuned output;

clarified signature: proper abstract type;

clarified signature: support all arguments of Sessions.store();

tuned;

basic setup for "isabelle build_worker";

tuned comments;

tuned structure;

clarified terminology of "session build database", while "build database" is the one underlying Build_Process;

clarified modules;

clarified signature: reduce boilerplate;

clarified messages;

tuned signature;

tuned structure;

clarified signature;

clarified signature;

clarified build process roles: "worker" vs. "build";

clarified database content; tuned signature;

tuned: prefer iterator.nextOption;

tuned whitespace and braces;

clarified signature: more uniform operations;

tuned signature: reduce boilerplate;

tuned signature;

proper clean_build of old data at start of new process --- allow to inspect remains of the last process;

more database content: formal end_build;

more operations;

clarified database content and prepare/init stages;

tuned signature;

tuned;

tuned;

less verbosity, amending 3bc49507bae5;

tuned comments; tuned structure;

tuned signature: avoid totally adhoc overriding;

separate static build_uuid from dynamic worker_uuid, to allow multiple worker processes participate in one build process;