@@ -1173,15 +1173,49 @@ (define (transitive-inputs inputs)
((input rest ...)
(loop rest (cons input result) propagated first? seen)))))
+(define (specification->inputs spec inputs)
+ "Lookup inputs specified by SPEC among INPUTS, an input list. Return an input
+list consists of all matching inputs, or '(). SPEC may be a package name,
+optionally containing a version number or an output name, as in these examples:
+
+ guile
+ guile@2.0.9
+ guile:debug
+ guile@2.0.9:debug
+
+If SPEC does not specify a version number, all versions are matched; if SPEC
+does not specify an output, all outputs are matched.
+
+SPEC can be an input label as well."
+ (let ((name version sub-drv
+ (package-specification->name+version+output spec #f)))
+ (filter-map
+ (lambda (input)
+ (match input
+ (((? string? label) (? package? package) . outputs)
+ (and (or (and (string=? name (package-name package))
+ (when version
+ (string-prefix? version (package-version package)))
+ (when sub-drv
+ (and (not (null? outputs))
+ (string=? sub-drv (first outputs)))))
+ ;; fallback to input label
+ (string=? label spec))
+ input))
+ ;; not a package
+ (((? string? label) _ . _)
+ (and (string=? label spec)
+ input))))
+ inputs)))
+
(define (lookup-input inputs name)
"Lookup NAME among INPUTS, an input list."
;; Note: Currently INPUTS is assumed to be an input list that contains input
;; labels. In the future, input labels will be gone and this procedure will
;; check package names.
- (match (assoc-ref inputs name)
- ((obj) obj)
- ((obj _) obj)
- (#f #f)))
+ (let ((candidates (specification->inputs name inputs)))
+ (and (not (null? candidates))
+ (second (first candidates)))))
(define (lookup-package-input package name)
"Look up NAME among PACKAGE's inputs. Return it if found, #f otherwise."
@@ -1202,17 +1236,25 @@ (define (lookup-package-direct-input package name)
otherwise."
(lookup-input (package-direct-inputs package) name))
+(define (delete-input name inputs)
+ "Delete input NAME within INPUTS."
+ (let ((to-delete (specification->inputs name inputs)))
+ (lset-difference equal? inputs to-delete)))
+
(define (replace-input name replacement inputs)
"Replace input NAME by REPLACEMENT within INPUTS."
- (map (lambda (input)
- (match input
- (((? string? label) _ . outputs)
- (if (string=? label name)
- (match replacement ;does REPLACEMENT specify an output?
- ((_ _) (cons label replacement))
- (_ (cons* label replacement outputs)))
- input))))
- inputs))
+ (let ((to-replace (specification->inputs name inputs)))
+ (append
+ (lset-difference equal? inputs to-replace)
+ (if (null? to-replace)
+ '()
+ (map (lambda (input)
+ (match input
+ ((label _ . outputs)
+ (match replacement ;does REPLACEMENT specify an output?
+ ((_ _) (cons label replacement))
+ (_ (cons* label replacement outputs))))))
+ to-replace)))))
(define-syntax prepend
(lambda (s)
@@ -1244,10 +1286,10 @@ (define-syntax modify-inputs
;; 'package-inputs' & co., is actually an alist with labels. Eventually,
;; it will operate on list of inputs without labels.
((_ inputs (delete name) clauses ...)
- (modify-inputs (alist-delete name inputs)
+ (modify-inputs (delete-input name inputs)
clauses ...))
((_ inputs (delete names ...) clauses ...)
- (modify-inputs (fold alist-delete inputs (list names ...))
+ (modify-inputs (fold delete-input inputs (list names ...))
clauses ...))
((_ inputs (prepend lst ...) clauses ...)
(modify-inputs (append (map add-input-label (list lst ...)) inputs)