diff -r 9055bf115e30 -r 6408fb6f7d81 README_REPOSITORY --- a/README_REPOSITORY Fri Aug 17 17:52:10 2012 +0200 +++ b/README_REPOSITORY Fri Aug 17 17:35:07 2012 +0200 @@ -233,28 +233,34 @@ Building a repository version of Isabelle ----------------------------------------- -A proper Isabelle distribution contains many add-on components that -are important for practical use. Some extra configuration is required -to approximate this system integration from a bare-bones repository -snapshot; see also its directory Admin/ (which is absent in official -releases). +The regular "isabelle build" tool allows to build session images as +usual, but this first requires to resolve add-on components first, +including the ML system. Some extra configuration is required to +approximate some of the system integration of official Isabelle +releases from a bare-bones repository snapshot. The special directory +Admin/ -- which is absent in official releases -- might provide some +further clues. - (1) Admin/components lists potentially relevant components, with - explicit version information for the given repository version. - For example, this allows to bisect over Mercurial history while - the contributing components change accordingly. +Here is a reasonably easy way to include important Isabelle components +on the spot: + + (1) The bash script ISABELLE_HOME_USER/etc/settings is augmented by + some shell function invocations like this: - (2) Admin/init_components is a bash script that can be sourced in - $ISABELLE_HOME_USER/etc/settings to initialize components listed - in Admin/components and present in $ISABELLE_HOME_USER/contrib/. + init_components "$HOME/.isabelle/contrib" "$ISABELLE_HOME/Admin/components/main" + init_components "$HOME/.isabelle/contrib" "$ISABELLE_HOME/Admin/components/optional" + + This uses some central place "$HOME/.isabelle/contrib" to keep + component directories that are shared by all Isabelle versions. + + (2) Missing components are resolved on the command line like this: - (3) http://isabelle.in.tum.de/components/ provides tar.gz archives - of many components, excluding some non-free ones (which are also - not part of Isabelle releases). + isabelle components -a + + This will saturate the "$HOME/.isabelle/contrib" directory structure + from according to $ISABELLE_COMPONENT_REPOSITORY. -Also note that the repository lacks some textual version identifiers -in the sources and scripts; this implies some changed behavior when -processing settings etc. -- especially the location of -$ISABELLE_HOME_USER provided by the system. - -The isabelle build tool allows to build logic images. +Since the given component catalogs in $ISABELLE_HOME/Admin/components +are subject to the Mercurial history, it is possible to bisect over a +range of Isabelle versions while references to the contributing +components change accordingly.