Make reloaders in turn reloadable
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@ -36,14 +36,18 @@
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(stop-when (asserted (reload-pending '#,(path->string (syntax-source stx))))
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body ...))]))
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(define-syntax-rule (spawn-reloader module-path)
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(spawn-reloader* 'module-path))
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(define-syntax (spawn-reloader stx)
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(syntax-case stx ()
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[(_ module-path)
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(quasisyntax/loc stx
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(spawn-reloader* 'module-path '#,(path->string (syntax-source stx))))]))
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(define (spawn-reloader* module-path)
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(define (spawn-reloader* module-path loading-module-pathstr)
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(match (module-path->path-string module-path)
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[#f #f]
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[pathstr
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(supervise #:name (reloader pathstr)
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(stop-when (asserted (reload-pending loading-module-pathstr)))
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(reloader-mixin** module-path pathstr))
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#t]))
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@ -74,9 +78,10 @@
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(define (reload!)
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(when (not (reloading?))
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(reloading? #t)
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(react (field [obstacles-cleared? #f])
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(react (field [obstacles-cleared? #f] [obstacles-existed? #f])
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(define/query-value obstacles-exist? #f (observe (reload-pending pathstr)) #t
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#:on-add (log-syndicate/reload-info "waiting to reload ~v" pathstr)
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#:on-add (begin (log-syndicate/reload-info "waiting to reload ~v" pathstr)
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(obstacles-existed? #t))
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#:on-remove (obstacles-cleared? #t))
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(assert #:when (obstacles-exist?) (reload-pending pathstr))
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(on-start (flush!)
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@ -85,11 +90,17 @@
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(flush!) ;; Wait one turn for effects of newly-cleared obstacles
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(log-syndicate/reload-info "(re)loading ~v" pathstr)
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(dynamic-rerequire module-path)
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(let ((force-reactivation? (obstacles-existed?)))
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(when force-reactivation?
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(log-syndicate/reload-info "forcing reactivation of ~v" pathstr))
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(spawn* #:name module-path
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((dynamic-require `(submod ,module-path syndicate-main)
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'activate!)))
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(if force-reactivation? 'activate!* 'activate!)))))
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(reloading? #f)))))
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(on-start (log-syndicate/reload-debug "reloader ~v starting" pathstr))
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(on-stop (log-syndicate/reload-debug "reloader ~v stopping" pathstr))
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(field [previous-version 'unknown])
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(define/query-value latest-version 'unknown (file-content pathstr file->sha1 $p) p)
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(begin/dataflow
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