gnu-build: Issue a warning unless every phase returns #t.

* guix/build/gnu-build-system.scm (gnu-build): Issue a warning if a phase
returns a value other than #t.
This commit is contained in:
Mark H Weaver 2018-03-16 07:26:13 -04:00
parent daac9c77b9
commit d8a3b1b9e8
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1 changed files with 22 additions and 13 deletions

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@ -746,7 +746,7 @@ in order. Return #t if all the PHASES succeeded, #f otherwise."
;; The trick is to #:allow-other-keys everywhere, so that each procedure in ;; The trick is to #:allow-other-keys everywhere, so that each procedure in
;; PHASES can pick the keyword arguments it's interested in. ;; PHASES can pick the keyword arguments it's interested in.
(every (match-lambda (for-each (match-lambda
((name . proc) ((name . proc)
(let ((start (current-time time-monotonic))) (let ((start (current-time time-monotonic)))
(format #t "starting phase `~a'~%" name) (format #t "starting phase `~a'~%" name)
@ -756,6 +756,15 @@ in order. Return #t if all the PHASES succeeded, #f otherwise."
name result name result
(elapsed-time end start)) (elapsed-time end start))
;; Issue a warning unless the result is #t.
(unless (eqv? result #t)
(format (current-error-port) "\
## WARNING: phase `~a' returned `~s'. Return values other than #t
## are deprecated. Please migrate this package so that its phase
## procedures report errors by raising an exception, and otherwise
## always return #t.~%"
name result))
;; Dump the environment variables as a shell script, for handy debugging. ;; Dump the environment variables as a shell script, for handy debugging.
(system "export > $NIX_BUILD_TOP/environment-variables") (system "export > $NIX_BUILD_TOP/environment-variables")
result)))) result))))