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-rw-r--r--doc/guix.texi28
-rw-r--r--guix/scripts/archive.scm55
-rw-r--r--guix/scripts/build.scm140
-rw-r--r--guix/scripts/environment.scm12
-rw-r--r--guix/scripts/pack.scm12
-rw-r--r--guix/scripts/package.scm21
-rw-r--r--guix/scripts/pull.scm12
-rw-r--r--guix/scripts/system.scm15
8 files changed, 178 insertions, 117 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index ed7723c00b..2039ff67cf 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2101,10 +2101,6 @@ By default, @command{guix package} reports as an error @dfn{collisions}
 in the profile.  Collisions happen when two or more different versions
 or variants of a given package end up in the profile.
 
-@item --verbose
-Produce verbose output.  In particular, emit the build log of the
-environment on the standard error port.
-
 @item --bootstrap
 Use the bootstrap Guile to build the profile.  This option is only
 useful to distribution developers.
@@ -6363,10 +6359,15 @@ Likewise, when the build or substitution process lasts for more than
 By default, the daemon's setting is honored (@pxref{Invoking
 guix-daemon, @code{--timeout}}).
 
-@item --verbosity=@var{level}
-Use the given verbosity level.  @var{level} must be an integer between 0
-and 5; higher means more verbose output.  Setting a level of 4 or more
-may be helpful when debugging setup issues with the build daemon.
+@c Note: This option is actually not part of %standard-build-options but
+@c most programs honor it.
+@cindex verbosity, of the command-line tools
+@cindex build logs, verbosity
+@item -v @var{level}
+@itemx --verbosity=@var{level}
+Use the given verbosity @var{level}, an integer.  Choosing 0 means that no
+output is produced, 1 is for quiet output, and 2 shows all the build log
+output on standard error.
 
 @item --cores=@var{n}
 @itemx -c @var{n}
@@ -6379,6 +6380,11 @@ Allow at most @var{n} build jobs in parallel.  @xref{Invoking
 guix-daemon, @code{--max-jobs}}, for details about this option and the
 equivalent @command{guix-daemon} option.
 
+@item --debug=@var{level}
+Produce debugging output coming from the build daemon.  @var{level} must be an
+integer between 0 and 5; higher means more verbose output.  Setting a level of
+4 or more may be helpful when debugging setup issues with the build daemon.
+
 @end table
 
 Behind the scenes, @command{guix build} is essentially an interface to
@@ -6547,9 +6553,9 @@ build}.
 
 @item --quiet
 @itemx -q
-Build quietly, without displaying the build log.  Upon completion, the
-build log is kept in @file{/var} (or similar) and can always be
-retrieved using the @option{--log-file} option.
+Build quietly, without displaying the build log; this is equivalent to
+@code{--verbosity=0}.  Upon completion, the build log is kept in @file{/var}
+(or similar) and can always be retrieved using the @option{--log-file} option.
 
 @item --file=@var{file}
 @itemx -f @var{file}
diff --git a/guix/scripts/archive.scm b/guix/scripts/archive.scm
index fb2f61ce30..950f0f41d8 100644
--- a/guix/scripts/archive.scm
+++ b/guix/scripts/archive.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,6 +23,7 @@
   #:use-module ((guix build utils) #:select (mkdir-p))
   #:use-module ((guix serialization) #:select (restore-file))
   #:use-module (guix store)
+  #:use-module (guix status)
   #:use-module (guix grafts)
   #:use-module (guix packages)
   #:use-module (guix derivations)
@@ -55,7 +56,11 @@
     (substitutes? . #t)
     (build-hook? . #t)
     (graft? . #t)
-    (verbosity . 0)))
+    (print-build-trace? . #t)
+    (print-extended-build-trace? . #t)
+    (multiplexed-build-output? . #t)
+    (verbosity . 2)
+    (debug . 0)))
 
 (define (show-help)
   (display (G_ "Usage: guix archive [OPTION]... PACKAGE...
@@ -85,6 +90,8 @@ Export/import one or more packages from/to the store.\n"))
   -s, --system=SYSTEM    attempt to build for SYSTEM--e.g., \"i686-linux\""))
   (display (G_ "
       --target=TRIPLET   cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
+  (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
 
   (newline)
   (show-build-options-help)
@@ -161,6 +168,11 @@ Export/import one or more packages from/to the store.\n"))
          (option '(#\e "expression") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'expression arg result)))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '(#\n "dry-run") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
@@ -239,7 +251,6 @@ build and a list of store files to transfer."
 resulting archive to the standard output port."
   (let-values (((drv files)
                 (options->derivations+files store opts)))
-    (set-build-options-from-command-line store opts)
     (show-what-to-build store drv
                         #:use-substitutes? (assoc-ref opts 'substitutes?)
                         #:dry-run? (assoc-ref opts 'dry-run?))
@@ -329,21 +340,23 @@ the input port."
                 ((assoc-ref opts 'authorize)
                  (authorize-key))
                 (else
-                 (with-store store
-                   (cond ((assoc-ref opts 'export)
-                          (export-from-store store opts))
-                         ((assoc-ref opts 'import)
-                          (import-paths store (current-input-port)))
-                         ((assoc-ref opts 'missing)
-                          (let* ((files   (lines (current-input-port)))
-                                 (missing (remove (cut valid-path? store <>)
-                                                  files)))
-                            (format #t "~{~a~%~}" missing)))
-                         ((assoc-ref opts 'extract)
-                          =>
-                          (lambda (target)
-                            (restore-file (current-input-port) target)))
-                         (else
-                          (leave
-                           (G_ "either '--export' or '--import' \
-must be specified~%"))))))))))))
+                 (with-status-verbosity (assoc-ref opts 'verbosity)
+                   (with-store store
+                     (set-build-options-from-command-line store opts)
+                     (cond ((assoc-ref opts 'export)
+                            (export-from-store store opts))
+                           ((assoc-ref opts 'import)
+                            (import-paths store (current-input-port)))
+                           ((assoc-ref opts 'missing)
+                            (let* ((files   (lines (current-input-port)))
+                                   (missing (remove (cut valid-path? store <>)
+                                                    files)))
+                              (format #t "~{~a~%~}" missing)))
+                           ((assoc-ref opts 'extract)
+                            =>
+                            (lambda (target)
+                              (restore-file (current-input-port) target)))
+                           (else
+                            (leave
+                             (G_ "either '--export' or '--import' \
+must be specified~%")))))))))))))
diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm
index 564bdf0ced..5a158799ae 100644
--- a/guix/scripts/build.scm
+++ b/guix/scripts/build.scm
@@ -450,13 +450,13 @@ options handled by 'set-build-options-from-command-line', and listed in
   (display (G_ "
       --timeout=SECONDS  mark the build as failed after SECONDS of activity"))
   (display (G_ "
-      --verbosity=LEVEL  use the given verbosity LEVEL"))
-  (display (G_ "
       --rounds=N         build N times in a row to detect non-determinism"))
   (display (G_ "
   -c, --cores=N          allow the use of up to N CPU cores for the build"))
   (display (G_ "
-  -M, --max-jobs=N       allow at most N build jobs")))
+  -M, --max-jobs=N       allow at most N build jobs"))
+  (display (G_ "
+      --debug=LEVEL      produce debugging output at LEVEL")))
 
 (define (set-build-options-from-command-line store opts)
   "Given OPTS, an alist as returned by 'args-fold' given
@@ -479,7 +479,7 @@ options handled by 'set-build-options-from-command-line', and listed in
                      (assoc-ref opts 'print-extended-build-trace?)
                      #:multiplexed-build-output?
                      (assoc-ref opts 'multiplexed-build-output?)
-                     #:verbosity (assoc-ref opts 'verbosity)))
+                     #:verbosity (assoc-ref opts 'debug)))
 
 (define set-build-options-from-command-line*
   (store-lift set-build-options-from-command-line))
@@ -553,12 +553,12 @@ options handled by 'set-build-options-from-command-line', and listed in
                   (apply values
                          (alist-cons 'timeout (string->number* arg) result)
                          rest)))
-        (option '("verbosity") #t #f
+        (option '("debug") #t #f
                 (lambda (opt name arg result . rest)
-                  (let ((level (string->number arg)))
+                  (let ((level (string->number* arg)))
                     (apply values
-                           (alist-cons 'verbosity level
-                                       (alist-delete 'verbosity result))
+                           (alist-cons 'debug level
+                                       (alist-delete 'debug result))
                            rest))))
         (option '(#\c "cores") #t #f
                 (lambda (opt name arg result . rest)
@@ -590,7 +590,8 @@ options handled by 'set-build-options-from-command-line', and listed in
     (print-build-trace? . #t)
     (print-extended-build-trace? . #t)
     (multiplexed-build-output? . #t)
-    (verbosity . 0)))
+    (verbosity . 2)
+    (debug . 0)))
 
 (define (show-help)
   (display (G_ "Usage: guix build [OPTION]... PACKAGE-OR-DERIVATION...
@@ -619,6 +620,8 @@ Build the given PACKAGE-OR-DERIVATION and return their output paths.\n"))
   -r, --root=FILE        make FILE a symlink to the result, and register it
                          as a garbage collector root"))
   (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
+  (display (G_ "
   -q, --quiet            do not show the build log"))
   (display (G_ "
       --log-file         return the log file names for the given derivations"))
@@ -694,9 +697,15 @@ must be one of 'package', 'all', or 'transitive'~%")
          (option '(#\r "root") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'gc-root arg result)))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '(#\q "quiet") #f #f
                  (lambda (opt name arg result)
-                   (alist-cons 'quiet? #t result)))
+                   (alist-cons 'verbosity 0
+                               (alist-delete 'verbosity result))))
          (option '("log-file") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'log-file? #t result)))
@@ -819,66 +828,59 @@ needed."
     (parse-command-line args %options
                         (list %default-options)))
 
-  (define quiet?
-    (assoc-ref opts 'quiet?))
-
   (with-error-handling
     ;; Ask for absolute file names so that .drv file names passed from the
     ;; user to 'read-derivation' are absolute when it returns.
     (with-fluids ((%file-port-name-canonicalization 'absolute))
-      (with-store store
-        ;; Set the build options before we do anything else.
-        (set-build-options-from-command-line store opts)
-
-        (parameterize ((current-terminal-columns (terminal-columns))
-                       (current-build-output-port
-                        (if quiet?
-                            (%make-void-port "w")
-                            (build-event-output-port
-                             (build-status-updater print-build-event)))))
-          (let* ((mode  (assoc-ref opts 'build-mode))
-                 (drv   (options->derivations store opts))
-                 (urls  (map (cut string-append <> "/log")
-                             (if (assoc-ref opts 'substitutes?)
-                                 (or (assoc-ref opts 'substitute-urls)
-                                     ;; XXX: This does not necessarily match the
-                                     ;; daemon's substitute URLs.
-                                     %default-substitute-urls)
-                                 '())))
-                 (items (filter-map (match-lambda
-                                      (('argument . (? store-path? file))
-                                       file)
-                                      (_ #f))
-                                    opts))
-                 (roots (filter-map (match-lambda
-                                      (('gc-root . root) root)
-                                      (_ #f))
-                                    opts)))
-
-            (unless (or (assoc-ref opts 'log-file?)
-                        (assoc-ref opts 'derivations-only?))
-              (show-what-to-build store drv
-                                  #:use-substitutes?
-                                  (assoc-ref opts 'substitutes?)
-                                  #:dry-run? (assoc-ref opts 'dry-run?)
-                                  #:mode mode))
-
-            (cond ((assoc-ref opts 'log-file?)
-                   (for-each (cut show-build-log store <> urls)
-                             (delete-duplicates
-                              (append (map derivation-file-name drv)
-                                      items))))
-                  ((assoc-ref opts 'derivations-only?)
-                   (format #t "~{~a~%~}" (map derivation-file-name drv))
-                   (for-each (cut register-root store <> <>)
-                             (map (compose list derivation-file-name) drv)
-                             roots))
-                  ((not (assoc-ref opts 'dry-run?))
-                   (and (build-derivations store drv mode)
-                        (for-each show-derivation-outputs drv)
-                        (for-each (cut register-root store <> <>)
-                                  (map (lambda (drv)
-                                         (map cdr
-                                              (derivation->output-paths drv)))
-                                       drv)
-                                  roots))))))))))
+      (with-status-verbosity (assoc-ref opts 'verbosity)
+        (with-store store
+          ;; Set the build options before we do anything else.
+          (set-build-options-from-command-line store opts)
+
+          (parameterize ((current-terminal-columns (terminal-columns)))
+            (let* ((mode  (assoc-ref opts 'build-mode))
+                   (drv   (options->derivations store opts))
+                   (urls  (map (cut string-append <> "/log")
+                               (if (assoc-ref opts 'substitutes?)
+                                   (or (assoc-ref opts 'substitute-urls)
+                                       ;; XXX: This does not necessarily match the
+                                       ;; daemon's substitute URLs.
+                                       %default-substitute-urls)
+                                   '())))
+                   (items (filter-map (match-lambda
+                                        (('argument . (? store-path? file))
+                                         file)
+                                        (_ #f))
+                                      opts))
+                   (roots (filter-map (match-lambda
+                                        (('gc-root . root) root)
+                                        (_ #f))
+                                      opts)))
+
+              (unless (or (assoc-ref opts 'log-file?)
+                          (assoc-ref opts 'derivations-only?))
+                (show-what-to-build store drv
+                                    #:use-substitutes?
+                                    (assoc-ref opts 'substitutes?)
+                                    #:dry-run? (assoc-ref opts 'dry-run?)
+                                    #:mode mode))
+
+              (cond ((assoc-ref opts 'log-file?)
+                     (for-each (cut show-build-log store <> urls)
+                               (delete-duplicates
+                                (append (map derivation-file-name drv)
+                                        items))))
+                    ((assoc-ref opts 'derivations-only?)
+                     (format #t "~{~a~%~}" (map derivation-file-name drv))
+                     (for-each (cut register-root store <> <>)
+                               (map (compose list derivation-file-name) drv)
+                               roots))
+                    ((not (assoc-ref opts 'dry-run?))
+                     (and (build-derivations store drv mode)
+                          (for-each show-derivation-outputs drv)
+                          (for-each (cut register-root store <> <>)
+                                    (map (lambda (drv)
+                                           (map cdr
+                                                (derivation->output-paths drv)))
+                                         drv)
+                                    roots)))))))))))
diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
index 9461d04976..116b8dcbce 100644
--- a/guix/scripts/environment.scm
+++ b/guix/scripts/environment.scm
@@ -158,6 +158,8 @@ COMMAND or an interactive shell in that environment.\n"))
       --expose=SPEC      for containers, expose read-only host file system
                          according to SPEC"))
   (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
+  (display (G_ "
       --bootstrap        use bootstrap binaries to build the environment"))
   (newline)
   (show-build-options-help)
@@ -179,7 +181,8 @@ COMMAND or an interactive shell in that environment.\n"))
     (print-build-trace? . #t)
     (print-extended-build-trace? . #t)
     (multiplexed-build-output? . #t)
-    (verbosity . 0)))
+    (debug . 0)
+    (verbosity . 2)))
 
 (define (tag-package-arg opts arg)
   "Return a two-element list with the form (TAG ARG) that tags ARG with either
@@ -260,6 +263,11 @@ COMMAND or an interactive shell in that environment.\n"))
          (option '(#\r "root") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'gc-root arg result)))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '("bootstrap") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'bootstrap? #t result)))
@@ -674,7 +682,7 @@ message if any test fails."
         (leave (G_ "'--user' cannot be used without '--container'~%")))
 
       (with-store store
-        (with-status-verbosity 1
+        (with-status-verbosity (assoc-ref opts 'verbosity)
           (define manifest
             (options/resolve-packages store opts))
 
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm
index d9e0050159..b19a4ae1b1 100644
--- a/guix/scripts/pack.scm
+++ b/guix/scripts/pack.scm
@@ -598,7 +598,8 @@ please email '~a'~%")
     (print-build-trace? . #t)
     (print-extended-build-trace? . #t)
     (multiplexed-build-output? . #t)
-    (verbosity . 0)
+    (debug . 0)
+    (verbosity . 2)
     (symlinks . ())
     (compressor . ,(first %compressors))))
 
@@ -685,6 +686,11 @@ please email '~a'~%")
                       (alist-cons 'profile-name arg result))
                      (_
                       (leave (G_ "~a: unsupported profile name~%") arg)))))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '("bootstrap") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'bootstrap? #t result)))
@@ -723,6 +729,8 @@ Create a bundle of PACKAGE.\n"))
       --profile-name=NAME
                          populate /var/guix/profiles/.../NAME"))
   (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
+  (display (G_ "
       --bootstrap        use the bootstrap binaries to build the pack"))
   (newline)
   (display (G_ "
@@ -772,7 +780,7 @@ Create a bundle of PACKAGE.\n"))
 
   (with-error-handling
     (with-store store
-      (with-status-verbosity 2
+      (with-status-verbosity (assoc-ref opts 'verbosity)
         ;; Set the build options before we do anything else.
         (set-build-options-from-command-line store opts)
 
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 876787fbe2..7ff6bfd6d8 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -293,7 +293,8 @@ ENTRIES, a list of manifest entries, in the context of PROFILE."
 
 (define %default-options
   ;; Alist of default option values.
-  `((verbosity . 0)
+  `((verbosity . 1)
+    (debug . 0)
     (graft? . #t)
     (substitutes? . #t)
     (build-hook? . #t)
@@ -346,7 +347,7 @@ Install, remove, or upgrade packages in a single transaction.\n"))
   (display (G_ "
       --bootstrap        use the bootstrap Guile to build the profile"))
   (display (G_ "
-      --verbose          produce verbose output"))
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
   (newline)
   (display (G_ "
   -s, --search=REGEXP    search in synopsis and description using REGEXP"))
@@ -472,13 +473,21 @@ kind of search path~%")
                    (values (alist-cons 'dry-run? #t
                                        (alist-cons 'graft? #f result))
                            #f)))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result arg-handler)
+                   (let ((level (string->number* arg)))
+                     (values (alist-cons 'verbosity level
+                                         (alist-delete 'verbosity result))
+                             #f))))
          (option '("bootstrap") #f #f
                  (lambda (opt name arg result arg-handler)
                    (values (alist-cons 'bootstrap? #t result)
                            #f)))
-         (option '("verbose") #f #f
+         (option '("verbose") #f #f               ;deprecated
                  (lambda (opt name arg result arg-handler)
-                   (values (alist-cons 'verbose? #t result)
+                   (values (alist-cons 'verbosity 2
+                                       (alist-delete 'verbosity
+                                                     result))
                            #f)))
          (option '("allow-collisions") #f #f
                  (lambda (opt name arg result arg-handler)
@@ -907,14 +916,12 @@ processed, #f otherwise."
   (define opts
     (parse-command-line args %options (list %default-options #f)
                         #:argument-handler handle-argument))
-  (define verbose?
-    (assoc-ref opts 'verbose?))
 
   (with-error-handling
     (or (process-query opts)
         (parameterize ((%store  (open-connection))
                        (%graft? (assoc-ref opts 'graft?)))
-          (with-status-verbosity 1
+          (with-status-verbosity (assoc-ref opts 'verbosity)
             (set-build-options-from-command-line (%store) opts)
             (parameterize ((%guile-for-build
                             (package-derivation
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index 6389d5ec09..6d1914f7c2 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -66,7 +66,8 @@
     (print-extended-build-trace? . #t)
     (multiplexed-build-output? . #t)
     (graft? . #t)
-    (verbosity . 0)))
+    (debug . 0)
+    (verbosity . 2)))
 
 (define (show-help)
   (display (G_ "Usage: guix pull [OPTION]...
@@ -89,6 +90,8 @@ Download and deploy the latest version of Guix.\n"))
   (display (G_ "
   -n, --dry-run          show what would be pulled and built"))
   (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
+  (display (G_ "
   -s, --system=SYSTEM    attempt to build for SYSTEM--e.g., \"i686-linux\""))
   (display (G_ "
       --bootstrap        use the bootstrap Guile to build the new Guix"))
@@ -135,6 +138,11 @@ Download and deploy the latest version of Guix.\n"))
          (option '(#\n "dry-run") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '("bootstrap") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'bootstrap? #t result)))
@@ -510,7 +518,7 @@ Use '~/.config/guix/channels.scm' instead."))
               (process-query opts profile))
              (else
               (with-store store
-                (with-status-verbosity 2
+                (with-status-verbosity (assoc-ref opts 'verbosity)
                   (parameterize ((%current-system (assoc-ref opts 'system))
                                  (%graft? (assoc-ref opts 'graft?))
                                  (%repository-cache-directory cache))
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 9e31baaddb..569b826acd 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -1015,6 +1015,8 @@ Some ACTIONS support additional ARGS.\n"))
       --full-boot        for 'vm', make a full boot sequence"))
   (display (G_ "
       --skip-checks      skip file system and initrd module safety checks"))
+  (display (G_ "
+  -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
   (newline)
   (display (G_ "
   -h, --help             display this help and exit"))
@@ -1074,6 +1076,11 @@ Some ACTIONS support additional ARGS.\n"))
          (option '(#\n "dry-run") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
+         (option '(#\v "verbosity") #t #f
+                 (lambda (opt name arg result)
+                   (let ((level (string->number* arg)))
+                     (alist-cons 'verbosity level
+                                 (alist-delete 'verbosity result)))))
          (option '(#\s "system") #t #f
                  (lambda (opt name arg result)
                    (alist-cons 'system arg
@@ -1092,7 +1099,8 @@ Some ACTIONS support additional ARGS.\n"))
     (print-extended-build-trace? . #t)
     (multiplexed-build-output? . #t)
     (graft? . #t)
-    (verbosity . 0)
+    (debug . 0)
+    (verbosity . #f)                              ;default
     (file-system-type . "ext4")
     (image-size . guess)
     (install-bootloader? . #t)))
@@ -1267,8 +1275,9 @@ argument list and OPTS is the option alist."
            (args     (option-arguments opts))
            (command  (assoc-ref opts 'action)))
       (parameterize ((%graft? (assoc-ref opts 'graft?)))
-        (with-status-verbosity (if (memq command '(init reconfigure))
-                                   1 2)
+        (with-status-verbosity (or (assoc-ref opts 'verbosity)
+                                   (if (memq command '(init reconfigure))
+                                       1 2))
           (process-command command args opts))))))
 
 ;;; Local Variables: