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(if (common:file-exists? mthome-cfgfile)
(read-config mthome-cfgfile view-cfgdat #t))
;; we load the home dir file AFTER the MTRAH file so the user can clobber settings when running the dashboard in read-only areas
(if (common:file-exists? home-cfgfile)
(read-config home-cfgfile view-cfgdat #t))
view-cfgdat))
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(if (common:file-exists? mthome-cfgfile)
(read-config mthome-cfgfile view-cfgdat #t))
;; we load the home dir file AFTER the MTRAH file so the user can clobber settings when running the dashboard in read-only areas
(if (common:file-exists? home-cfgfile)
(read-config home-cfgfile view-cfgdat #t))
view-cfgdat))
;; accept an alist or hash table containing envvar/env value pairs (value of #f causes unset)
;; execute thunk in context of environment modified as per this list
;; restore env to prior state then return value of eval'd thunk.
;; ** this is not thread safe **
(define (common:with-env-vars delta-env-alist-or-hash-table thunk)
(let* ((delta-env-alist (if (hash-table? delta-env-alist-or-hash-table)
(hash-table->alist delta-env-alist-or-hash-table)
delta-env-alist-or-hash-table))
(restore-thunks
(filter
identity
(map (lambda (env-pair)
(let* ((env-var (car env-pair))
(new-val (cadr env-pair))
(current-val (get-environment-variable env-var))
(restore-thunk
(cond
((not current-val) (lambda () (unsetenv env-var)))
((not (string? new-val)) #f)
((eq? current-val new-val) #f)
(else
(lambda () (setenv env-var current-val))))))
;;(when (not (string? new-val))
;; (debug:print 0 *default-log-port* " PROBLEM: not a string: "new-val"\n from env-alist:\n"delta-env-alist)
;; (pp delta-env-alist)
;; (exit 1))
(cond
((not new-val) ;; modify env here
(unsetenv env-var))
((string? new-val)
(setenv env-var new-val)))
restore-thunk))
delta-env-alist))))
(let ((rv (thunk)))
(for-each (lambda (x) (x)) restore-thunks) ;; restore env to original state
rv)))
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