diff options
| -rw-r--r-- | guix/import/utils.scm | 28 |
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)))))) |