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authorRicardo Wurmus <rekado@elephly.net>2020-04-15 00:43:39 +0200
committerRicardo Wurmus <rekado@elephly.net>2020-04-16 23:41:52 +0200
commit7cef499bb060aabf3d59cc4eca37350e5c79ff7d (patch)
treeacf8511d8a652f4249e6a457c75f35bd3dc1ddbc
parent3532fc39fff41eabd061370ee36a1d42b9fac0e6 (diff)
import/json: json->code: Handle files with more than one definition.
* guix/import/json.scm (json->code): Convert JSON arrays to lists of package definitions. (json->scheme-file): Write all expressions to the target file.
-rw-r--r--guix/import/json.scm35
1 files changed, 30 insertions, 5 deletions
diff --git a/guix/import/json.scm b/guix/import/json.scm
index 8f8dbbd05d..0c98bb25b8 100644
--- a/guix/import/json.scm
+++ b/guix/import/json.scm
@@ -24,8 +24,11 @@
#:use-module (guix http-client)
#:use-module (guix import utils)
#:use-module (guix import print)
+ #:use-module (ice-9 match)
#:use-module (ice-9 rdelim)
+ #:use-module (srfi srfi-1)
#:use-module (srfi srfi-2)
+ #:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:export (json-fetch
json->code
@@ -50,19 +53,41 @@ the query."
result)))
(define (json->code file-name)
- "Read FILE-NAME containing a JSON package definition and return an
-S-expression, or return #F when the JSON is invalid."
+ "Read FILE-NAME containing one ore more JSON package definitions and return
+a list of S-expressions, or return #F when the JSON is invalid."
(catch 'json-invalid
(lambda ()
(let ((json (json-string->scm
(with-input-from-file file-name read-string))))
- (package->code (alist->package json))))
+ (match json
+ (#(packages ...)
+ ;; To allow definitions to refer to one another, collect references
+ ;; to local definitions and tell alist->package to ignore them.
+ (second
+ (memq #:result
+ (fold
+ (lambda (pkg names+result)
+ (match names+result
+ ((#:names names #:result result)
+ (list #:names
+ (cons (assoc-ref pkg "name") names)
+ #:result
+ (append result
+ (list
+ (package->code (alist->package pkg names))
+ (string->symbol (assoc-ref pkg "name"))))))))
+ (list #:names '()
+ #:result '())
+ packages))))
+ (package
+ (list (package->code (alist->package json))
+ (string->symbol (assoc-ref json "name")))))))
(const #f)))
(define (json->scheme-file file)
"Convert the FILE containing a JSON package definition to a Scheme
representation and return the new file name (or #F on error)."
- (and-let* ((json (json->code file))
+ (and-let* ((sexprs (json->code file))
(file* (let* ((tempdir (or (getenv "TMPDIR") "/tmp"))
(template (string-append tempdir "/guix-XXXXXX"))
(port (mkstemp! template)))
@@ -74,5 +99,5 @@ representation and return the new file name (or #F on error)."
(guix)
((guix licenses) #:prefix license:))
port)
- (write json port)))
+ (for-each (cut write <> port) sexprs)))
file*))