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-rw-r--r--guix/import/utils.scm28
1 files changed, 27 insertions, 1 deletions
diff --git a/guix/import/utils.scm b/guix/import/utils.scm
index 1e2f0c809d..d4cef6b503 100644
--- a/guix/import/utils.scm
+++ b/guix/import/utils.scm
@@ -34,6 +34,8 @@
#:use-module (guix download)
#:use-module (gnu packages)
#:use-module (ice-9 match)
+ #:use-module (ice-9 rdelim)
+ #:use-module (ice-9 receive)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
@@ -56,7 +58,10 @@
snake-case
beautify-description
- alist->package))
+ alist->package
+
+ read-lines
+ chunk-lines))
(define (factorize-uri uri version)
"Factorize URI, a package tarball URI as a string, such that any occurrences
@@ -329,3 +334,24 @@ the expected fields of an <origin> object."
(or (module-ref (resolve-interface '(guix licenses) #:prefix 'license:)
(spdx-string->license l))
(license:fsdg-compatible l))))))
+
+(define* (read-lines #:optional (port (current-input-port)))
+ "Read lines from PORT and return them as a list."
+ (let loop ((line (read-line port))
+ (lines '()))
+ (if (eof-object? line)
+ (reverse lines)
+ (loop (read-line port)
+ (cons line lines)))))
+
+(define* (chunk-lines lines #:optional (pred string-null?))
+ "Return a list of chunks, each of which is a list of lines. The chunks are
+separated by PRED."
+ (let loop ((rest lines)
+ (parts '()))
+ (receive (before after)
+ (break pred rest)
+ (let ((res (cons before parts)))
+ (if (null? after)
+ (reverse res)
+ (loop (cdr after) res))))))