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-rw-r--r--guix/build/ruby-build-system.scm45
1 files changed, 23 insertions, 22 deletions
diff --git a/guix/build/ruby-build-system.scm b/guix/build/ruby-build-system.scm
index 3a658e2557..cdabd829e2 100644
--- a/guix/build/ruby-build-system.scm
+++ b/guix/build/ruby-build-system.scm
@@ -86,28 +86,29 @@ operation is not deterministic, we replace it with `find`."
"Remove the original gemspec, if present, and replace it with a new one.
This avoids issues with upstream gemspecs requiring tools such as git to
generate the files list."
- (when (gem-archive? source)
- (let ((gemspec (or (false-if-exception (first-gemspec))
- ;; Make new gemspec if one wasn't shipped.
- ".gemspec")))
-
- (when (file-exists? gemspec) (delete-file gemspec))
-
- ;; Extract gemspec from source gem.
- (let ((pipe (open-pipe* OPEN_READ "gem" "spec" "--ruby" source)))
- (dynamic-wind
- (const #t)
- (lambda ()
- (call-with-output-file gemspec
- (lambda (out)
- ;; 'gem spec' writes to stdout, but 'gem build' only reads
- ;; gemspecs from a file, so we redirect the output to a file.
- (while (not (eof-object? (peek-char pipe)))
- (write-char (read-char pipe) out))))
- #t)
- (lambda ()
- (close-pipe pipe)))))
- #t))
+ (if (gem-archive? source)
+ (let ((gemspec (or (false-if-exception (first-gemspec))
+ ;; Make new gemspec if one wasn't shipped.
+ ".gemspec")))
+
+ (when (file-exists? gemspec) (delete-file gemspec))
+
+ ;; Extract gemspec from source gem.
+ (let ((pipe (open-pipe* OPEN_READ "gem" "spec" "--ruby" source)))
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (call-with-output-file gemspec
+ (lambda (out)
+ ;; 'gem spec' writes to stdout, but 'gem build' only reads
+ ;; gemspecs from a file, so we redirect the output to a file.
+ (while (not (eof-object? (peek-char pipe)))
+ (write-char (read-char pipe) out))))
+ #t)
+ (lambda ()
+ (close-pipe pipe)))))
+ (display "extract-gemspec: skipping as source is not a gem archive\n"))
+ #t)
(define* (build #:key source #:allow-other-keys)
"Build a new gem using the gemspec from the SOURCE gem."