(address . guix-patches@gnu.org)(name . Attila Lendvai)(address . attila@lendvai.name)
20211221224029.2091-1-attila@lendvai.name
* guix/store.scm (call-with-store): Use raise-continuable to resignal
exceptions. This is needed for a later commit that uses continuable
exceptions from within git-authenticate to signal warnings that are meant to
be displayed for the user. The reason for this is that this way unit tests
can explicitly check with a handler that a warning was indeed signalled.
* guix/ui.scm (call-with-error-handling): Handle &warning type exceptions by
printing them to the user, and then continuing at the place where they were
signalled at.
* guix/diagnostics.scm (emit-formatted-warning): New exported
function.
---
this is used in an upcoming patch, filed under a separate id.
guix/diagnostics.scm | 4 ++++
guix/store.scm | 7 +++++--
guix/ui.scm | 11 ++++++++++-
3 files changed, 19 insertions(+), 3 deletions(-)
Toggle diff (78 lines)
diff --git a/guix/diagnostics.scm b/guix/diagnostics.scm
index 337a73c1a2..8e13e5e30a 100644
--- a/guix/diagnostics.scm
+++ b/guix/diagnostics.scm
@@ -48,6 +48,7 @@ (define-module (guix diagnostics)
formatted-message?
formatted-message-string
formatted-message-arguments
+ emit-formatted-warning
&fix-hint
fix-hint?
@@ -163,6 +164,9 @@ (define-syntax-rule (leave args ...)
(report-error args ...)
(exit 1)))
+(define* (emit-formatted-warning fmt . args)
+ (emit-diagnostic fmt args #:prefix (G_ "warning: ") #:colors %warning-color))
+
(define* (emit-diagnostic fmt args
#:key location (colors (color)) (prefix ""))
"Report diagnostic message FMT with the given ARGS and the specified
diff --git a/guix/store.scm b/guix/store.scm
index a93e9596d9..a2b3b2f05a 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -34,6 +34,8 @@ (define-module (guix store)
#:use-module (guix profiling)
#:autoload (guix build syscalls) (terminal-columns)
#:use-module (rnrs bytevectors)
+ #:use-module ((rnrs conditions) #:select (warning?))
+ #:use-module ((rnrs exceptions) #:select (raise-continuable))
#:use-module (ice-9 binary-ports)
#:use-module ((ice-9 control) #:select (let/ec))
#:use-module (ice-9 atomic)
@@ -661,8 +663,9 @@ (define (thunk)
(apply values results)))))
(with-exception-handler (lambda (exception)
- (close-connection store)
- (raise-exception exception))
+ (unless (warning? exception)
+ (close-connection store))
+ (raise-continuable exception))
thunk)))
(define-syntax-rule (with-store store exp ...)
diff --git a/guix/ui.scm b/guix/ui.scm
index bd999103ff..f492b838d2 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -69,6 +69,8 @@ (define-module (guix ui)
#:use-module (srfi srfi-31)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
+ #:use-module ((rnrs conditions)
+ #:select (warning?))
#:autoload (ice-9 ftw) (scandir)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
@@ -690,7 +692,14 @@ (define (port-filename* port)
(and (not (port-closed? port))
(port-filename port)))
- (guard* (c ((package-input-error? c)
+ (guard* (c ((warning? c)
+ (if (formatted-message? c)
+ (apply emit-formatted-warning
+ (formatted-message-string c)
+ (formatted-message-arguments c))
+ (emit-formatted-warning "~a" c))
+ '())
+ ((package-input-error? c)
(let* ((package (package-error-package c))
(input (package-error-invalid-input c))
(location (package-location package))
--
2.34.0