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authorPhilip McGrath <philip@philipmcgrath.com>2022-10-19 01:04:49 -0400
committerLudovic Courtès <ludo@gnu.org>2022-11-18 15:44:38 +0100
commitfd5e642513ea08cc9ba3b4197bcbf0b8d37ae966 (patch)
tree454070472bc81b6a822fa8e93a481d9cfa32fd54 /guix
parent07482dc0511350d596fdd25f7645dd6f4f91313b (diff)
downloadguix-fd5e642513ea08cc9ba3b4197bcbf0b8d37ae966.tar
guix-fd5e642513ea08cc9ba3b4197bcbf0b8d37ae966.tar.gz
import/utils: spdx-string->license: Support '+' operator.
Previously, '+' was supported only via special cases for deprecated GNU identifiers like 'GPL-N+'. This commit adds support for other uses of '+', such as 'AFL-2.0+' and 'LPPL-1.0+'. Strictly speaking, '+' is an operator, not part of the SPDX license identifier, but it is useful to handle it here. * guix/import/utils.scm (spdx-string->license): Support '+' operator. * tests/import-utils.scm ("spdx-string->license"): Test it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'guix')
-rw-r--r--guix/import/utils.scm23
1 files changed, 14 insertions, 9 deletions
diff --git a/guix/import/utils.scm b/guix/import/utils.scm
index 9944b606f3..d6b179b57c 100644
--- a/guix/import/utils.scm
+++ b/guix/import/utils.scm
@@ -139,10 +139,11 @@ of the string VERSION is replaced by the symbol 'version."
;; Please update guix/licenses.scm when modifying
;; this list to avoid mismatches.
;;
- ;; "GPL-N+" has been deprecated in favour of "GPL-N-or-later".
- ;; "GPL-N" has been deprecated in favour of "GPL-N-only"
- ;; or "GPL-N-or-later" as appropriate. Likewise for LGPL
- ;; and AGPL.
+ ;; "GPL-N+" has been deprecated in favour of "GPL-N-or-later". "GPL-N" has
+ ;; been deprecated in favour of "GPL-N-only" or "GPL-N-or-later" as
+ ;; appropriate. Likewise for LGPL and AGPL. However, we list the
+ ;; deprecated forms here (with and without the "+" operator) to get better
+ ;; results from old license expressions.
'(("AGPL-1.0" . license:agpl1)
("AGPL-1.0-only" . license:agpl1)
("AGPL-3.0" . license:agpl3)
@@ -255,10 +256,11 @@ of the string VERSION is replaced by the symbol 'version."
("Zlib" . license:zlib)))
(define (spdx-string->license str)
- "Convert STR, an SPDX license identifier, to a symbol like 'license:gpl3+
-giving the prefixed name of a license object exported from (guix licenses).
-Return #f if STR does not match any known SPDX license identifiers. Per the
-SPDX specification, license identifiers are compared case-insensitively."
+ "Convert STR, an SPDX license identifier (possibly with a postfix +
+operator), to a symbol like 'license:gpl3+ giving the prefixed name of a
+license object exported from (guix licenses). Return #f if STR does not match
+any known SPDX license identifiers. Per the SPDX specification, license
+identifiers are compared case-insensitively."
;; https://spdx.github.io/spdx-spec/v2.3/SPDX-license-expressions/#d2-case-sensitivity
;; Operators AND, OR, and WITH are case-sensitive, but identifiers are
;; case-insensitive for matching, though the canonical case is used in URIs.
@@ -266,7 +268,10 @@ SPDX specification, license identifiers are compared case-insensitively."
((_ . license)
license)
(#f
- #f)))
+ (and (string-suffix? "+" str)
+ ;; We try the form with the + to support deprecated identifiers for
+ ;; GNU licenses (see above). Here, we handle other uses of +.
+ (spdx-string->license (string-drop-right str 1))))))
(define (license->symbol license)
"Convert LICENSE object to a prefixed symbol representing the variable the