On 6/17/16 Jun 17 -11:04 AM, Javier Olaechea wrote: > Hi Frank, > You are looking for asdf:component-version. See for example > how Shuffletron > <https://github.com/ahefner/shuffletron/blob/39c7d8af6577e9cbd39da656598f98c6eb6c3f14/src/global.lisp#L6> > does > it
Yes, that is because all components can have versions, not just systems. Actually, Faré and I have in the past talked about moving the versioning from arbitrary components (including files and modules) up to systems, which is the only place I have seen it used in the wild. As a half-measure, perhaps we should add SYSTEM-VERSION as an exported function. Having only COMPONENT-VERSION requires users of ASDF to know stuff about the inheritance structure of the COMPONENT subclasses that seems inappropriate. Best, r > > > > On Fri, Jun 17, 2016 at 10:59 AM, Frank <f...@riseup.net > <mailto:f...@riseup.net>> wrote: > > Hello, > > In the system definition we can specify a version; for example: > > (asdf:defsystem :foo > :description "foo utility" > :license "LGPL" > > :version (:read-file-form "VERSION") > > :serial t > :components ((:file "foo"))) > > For example I can query the system license like this: > (asdf:system-licence (asdf:find-system "foo")) > > How can I query the version of system foo at run time? > > Thanks, > Frank > > > > > > -- > "I object to doing things that computers can do." — Olin Shivers
