GNU bug report logs - #57031
[PATCH] scripts: Show a hint the first time some commands are run as root.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: guix-patches <at> gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH] scripts: Show a hint the first time some commands are run as
 root.
Date: Sun,  7 Aug 2022 12:14:21 +0100

* guix/scripts/package.scm (guix-package*): Add `#:root-hint?` keyword
  argument. Display a hint if Guix is being run as root and `root-hint?`
  is #t.
* guix/scripts/install.scm (guix-install): Use `#:root-hint? #t` here...
* guix/scripts/remove.scm (guix-remove): ...here...
* guix/scripts/upgrade.scm (guix-upgrade): ...and here.
* guix/scripts/pull.scm (guix-pull): (guix-pull): Display a hint if
  Guix is being run as root.

A pretty common beginner mistake, it seems, is assuming that since
every other package manager you've used requires root for installing,
removing, and upgrading packages, Guix must too.

This commit tries to make it harder to make such an assumption, by
making commands such as `pull`, `package`, and `upgrade` display
a hint the first time they are run as root.
---
 guix/scripts/install.scm |  3 ++-
 guix/scripts/package.scm | 16 +++++++++++++---
 guix/scripts/pull.scm    |  7 +++++++
 guix/scripts/remove.scm  |  3 ++-
 guix/scripts/upgrade.scm |  3 ++-
 guix/ui.scm              | 29 +++++++++++++++++++++++++++++
 6 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 63e625f266..bf11fc7b11 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -80,4 +81,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 7d92598efa..8936c70e1f 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Josselin Poiret <dev <at> jpoiret.xyz>
 ;;; Copyright © 2022 Antero Mejr <antero <at> mailbox.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1077,12 +1078,21 @@ (define opts
     (parse-command-line args %options (list %default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
 
-(define (guix-package* opts)
+(define* (guix-package* opts #:key (root-hint? #f))
   "Run the 'guix package' command on OPTS, an alist resulting for command-line
-option processing with 'parse-command-line'."
+option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
+shown on the first usage of this procedure that informs users about Guix's
+support for per-user package management."
   (with-error-handling
+    (when (and root-hint?
+               (not (hint-given? 'package-root-hint))
+               (= (getuid) 0))
+      (record-hint 'package-root-hint)
+      (display-hint (G_ "`guix package' is user-specific, not system-wide,
+so running this command as root will affect only the `root' user.")))
+
     (or (process-query opts)
         (parameterize ((%store  (open-connection))
                        (%graft? (assoc-ref opts 'graft?)))
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index b0cc459d63..6e3d7db7c7 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2013-2015, 2017-2022 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2017 Marius Bakke <mbakke <at> fastmail.com>
 ;;; Copyright © 2020, 2021 Tobias Geerinckx-Rice <me <at> tobias.gr>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -834,6 +835,12 @@ (define (no-arguments arg _)
             (current-channels (profile-channels profile))
             (validate-pull    (assoc-ref opts 'validate-pull))
             (authenticate?    (assoc-ref opts 'authenticate-channels?)))
+       (when (and (not (hint-given? 'pull-root-hint))
+                  (= (getuid) 0))
+         (record-hint 'pull-root-hint)
+         (display-hint (G_ "`guix pull' is user-specific, not system-wide;
+running it as root will only affect the `root' user.")))
+
        (cond
         ((assoc-ref opts 'query)
          (process-query opts profile))
diff --git a/guix/scripts/remove.scm b/guix/scripts/remove.scm
index a46ad04d56..131649eace 100644
--- a/guix/scripts/remove.scm
+++ b/guix/scripts/remove.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -76,4 +77,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/upgrade.scm b/guix/scripts/upgrade.scm
index beb59cbe6f..dd14600fe4 100644
--- a/guix/scripts/upgrade.scm
+++ b/guix/scripts/upgrade.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba <at> kadziolka.net>
 ;;; Copyright © 2020 Simon Tournier <zimon.toutoune <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -87,4 +88,4 @@ (define opts
                               #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/ui.scm b/guix/ui.scm
index a7acd41440..44607d80d2 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -18,6 +18,7 @@
 ;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Taiju HIGASHI <higashi <at> taiju.info>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -136,6 +137,11 @@ (define-module (guix ui)
             switch-to-generation*
             delete-generation*
 
+            hint-directory
+            hint-file
+            record-hint
+            hint-given?
+
             %default-message-language
             current-message-language
 
@@ -2032,6 +2038,29 @@ (define* (package-specification->name+version+output spec
                  (package-name->name+version name)))
     (values name version sub-drv)))
 
+
+;;;
+;;; One-time hints.
+;;;
+
+(define (hint-directory)
+  "Return the directory name where previously given hints are recorded."
+  (string-append (cache-directory #:ensure? #f) "/hints"))
+
+(define (hint-file hint)
+  "Return the name of the file that marks HINT as already printed."
+  (string-append (hint-directory) "/" (symbol->string hint)))
+
+(define (record-hint hint)
+  "Mark HINT as already given."
+  (let ((file (hint-file hint)))
+    (mkdir-p (dirname file))
+    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
+
+(define (hint-given? hint)
+  "Return true if HINT was already given."
+  (file-exists? (hint-file hint)))
+
 
 ;;;
 ;;; Command-line option processing.
-- 
2.37.1

Message #8 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH v2] scripts: Show a hint the first time some commands are run
 as root.
Date: Sun,  7 Aug 2022 12:19:29 +0100

* guix/scripts/shell.scm (hint-given?, hint-directory, hint-file,
  record-hint): Move these...
* guix/ui.scm: ...here. Export them.
* guix/scripts/package.scm (guix-package*): Add `#:root-hint?` keyword
  argument. Display a hint if Guix is being run as root and `root-hint?`
  is #t.
* guix/scripts/install.scm (guix-install): Use `#:root-hint? #t` here...
* guix/scripts/remove.scm (guix-remove): ...here...
* guix/scripts/upgrade.scm (guix-upgrade): ...and here.
* guix/scripts/pull.scm (guix-pull): (guix-pull): Display a hint if
  Guix is being run as root.

A pretty common beginner mistake, it seems, is assuming that since
every other package manager you've used requires root for installing,
removing, and upgrading packages, Guix must too.

This commit tries to make it harder to make such an assumption, by
making commands such as `pull`, `package`, and `upgrade` display
a hint the first time they are run as root.
---
 guix/scripts/install.scm |  3 ++-
 guix/scripts/package.scm | 16 +++++++++++++---
 guix/scripts/pull.scm    |  7 +++++++
 guix/scripts/remove.scm  |  3 ++-
 guix/scripts/shell.scm   | 23 -----------------------
 guix/scripts/upgrade.scm |  3 ++-
 guix/ui.scm              | 29 +++++++++++++++++++++++++++++
 7 files changed, 55 insertions(+), 29 deletions(-)

diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 63e625f266..bf11fc7b11 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -80,4 +81,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 7d92598efa..8936c70e1f 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Josselin Poiret <dev <at> jpoiret.xyz>
 ;;; Copyright © 2022 Antero Mejr <antero <at> mailbox.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1077,12 +1078,21 @@ (define opts
     (parse-command-line args %options (list %default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
 
-(define (guix-package* opts)
+(define* (guix-package* opts #:key (root-hint? #f))
   "Run the 'guix package' command on OPTS, an alist resulting for command-line
-option processing with 'parse-command-line'."
+option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
+shown on the first usage of this procedure that informs users about Guix's
+support for per-user package management."
   (with-error-handling
+    (when (and root-hint?
+               (not (hint-given? 'package-root-hint))
+               (= (getuid) 0))
+      (record-hint 'package-root-hint)
+      (display-hint (G_ "`guix package' is user-specific, not system-wide,
+so running this command as root will affect only the `root' user.")))
+
     (or (process-query opts)
         (parameterize ((%store  (open-connection))
                        (%graft? (assoc-ref opts 'graft?)))
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index b0cc459d63..6e3d7db7c7 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2013-2015, 2017-2022 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2017 Marius Bakke <mbakke <at> fastmail.com>
 ;;; Copyright © 2020, 2021 Tobias Geerinckx-Rice <me <at> tobias.gr>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -834,6 +835,12 @@ (define (no-arguments arg _)
             (current-channels (profile-channels profile))
             (validate-pull    (assoc-ref opts 'validate-pull))
             (authenticate?    (assoc-ref opts 'authenticate-channels?)))
+       (when (and (not (hint-given? 'pull-root-hint))
+                  (= (getuid) 0))
+         (record-hint 'pull-root-hint)
+         (display-hint (G_ "`guix pull' is user-specific, not system-wide;
+running it as root will only affect the `root' user.")))
+
        (cond
         ((assoc-ref opts 'query)
          (process-query opts profile))
diff --git a/guix/scripts/remove.scm b/guix/scripts/remove.scm
index a46ad04d56..131649eace 100644
--- a/guix/scripts/remove.scm
+++ b/guix/scripts/remove.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -76,4 +77,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/shell.scm b/guix/scripts/shell.scm
index c115a00320..3ac7d80eb0 100644
--- a/guix/scripts/shell.scm
+++ b/guix/scripts/shell.scm
@@ -489,29 +489,6 @@ (define (validated-spec spec)
       (exp
        (pretty-print exp port)))))
 
-
-;;;
-;;; One-time hints.
-;;;
-
-(define (hint-directory)
-  "Return the directory name where previously given hints are recorded."
-  (string-append (cache-directory #:ensure? #f) "/hints"))
-
-(define (hint-file hint)
-  "Return the name of the file that marks HINT as already printed."
-  (string-append (hint-directory) "/" (symbol->string hint)))
-
-(define (record-hint hint)
-  "Mark HINT as already given."
-  (let ((file (hint-file hint)))
-    (mkdir-p (dirname file))
-    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
-
-(define (hint-given? hint)
-  "Return true if HINT was already given."
-  (file-exists? (hint-file hint)))
-
 
 (define-command (guix-shell . args)
   (category development)
diff --git a/guix/scripts/upgrade.scm b/guix/scripts/upgrade.scm
index beb59cbe6f..dd14600fe4 100644
--- a/guix/scripts/upgrade.scm
+++ b/guix/scripts/upgrade.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba <at> kadziolka.net>
 ;;; Copyright © 2020 Simon Tournier <zimon.toutoune <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -87,4 +88,4 @@ (define opts
                               #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/ui.scm b/guix/ui.scm
index a7acd41440..44607d80d2 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -18,6 +18,7 @@
 ;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Taiju HIGASHI <higashi <at> taiju.info>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -136,6 +137,11 @@ (define-module (guix ui)
             switch-to-generation*
             delete-generation*
 
+            hint-directory
+            hint-file
+            record-hint
+            hint-given?
+
             %default-message-language
             current-message-language
 
@@ -2032,6 +2038,29 @@ (define* (package-specification->name+version+output spec
                  (package-name->name+version name)))
     (values name version sub-drv)))
 
+
+;;;
+;;; One-time hints.
+;;;
+
+(define (hint-directory)
+  "Return the directory name where previously given hints are recorded."
+  (string-append (cache-directory #:ensure? #f) "/hints"))
+
+(define (hint-file hint)
+  "Return the name of the file that marks HINT as already printed."
+  (string-append (hint-directory) "/" (symbol->string hint)))
+
+(define (record-hint hint)
+  "Mark HINT as already given."
+  (let ((file (hint-file hint)))
+    (mkdir-p (dirname file))
+    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
+
+(define (hint-given? hint)
+  "Return true if HINT was already given."
+  (file-exists? (hint-file hint)))
+
 
 ;;;
 ;;; Command-line option processing.
-- 
2.37.1

Message #11 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: "(" <paren <at> disroot.org>, <57031 <at> debbugs.gnu.org>
Subject: Re: [PATCH v2] scripts: Show a hint the first time some commands
 are run as root.
Date: Sun, 07 Aug 2022 12:22:41 +0100

This patch tries to solve the same problem as #57016, except instead
of bailing out on `sudo guix pull`, `sudo guix package`, or similar,
it displays a hint the first time they are run advising users that
Guix's package management is per-user.

    -- (

Message #14 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: "(" <paren <at> disroot.org>
Cc: 57031 <at> debbugs.gnu.org
Subject: Re: bug#57031: [PATCH] scripts: Show a hint the first time some
 commands are run as root.
Date: Mon, 05 Sep 2022 23:11:11 +0200

Hello,

"(" <paren <at> disroot.org> skribis:

> * guix/scripts/shell.scm (hint-given?, hint-directory, hint-file,
>   record-hint): Move these...
> * guix/ui.scm: ...here. Export them.
> * guix/scripts/package.scm (guix-package*): Add `#:root-hint?` keyword
>   argument. Display a hint if Guix is being run as root and `root-hint?`
>   is #t.
> * guix/scripts/install.scm (guix-install): Use `#:root-hint? #t` here...
> * guix/scripts/remove.scm (guix-remove): ...here...
> * guix/scripts/upgrade.scm (guix-upgrade): ...and here.
> * guix/scripts/pull.scm (guix-pull): (guix-pull): Display a hint if
>   Guix is being run as root.
>
> A pretty common beginner mistake, it seems, is assuming that since
> every other package manager you've used requires root for installing,
> removing, and upgrading packages, Guix must too.
>
> This commit tries to make it harder to make such an assumption, by
> making commands such as `pull`, `package`, and `upgrade` display
> a hint the first time they are run as root.

I like this change!

One nitpick: Could you make moving the hint code from shell.scm to
ui.scm a separate commit?


[...]

> +         (display-hint (G_ "`guix pull' is user-specific, not system-wide;
> +running it as root will only affect the `root' user.")))

Please use Texinfo markup in hints: @command{guix pull}, etc.  (Likewise
for the second hint.)

> +(define* (guix-package* opts #:key (root-hint? #f))
>    "Run the 'guix package' command on OPTS, an alist resulting for command-line
> -option processing with 'parse-command-line'."
> +option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
> +shown on the first usage of this procedure that informs users about Guix's
> +support for per-user package management."
>    (with-error-handling
> +    (when (and root-hint?
> +               (not (hint-given? 'package-root-hint))
> +               (= (getuid) 0))

Unless I’m mistaken, ‘root-hint?’ is always true; should we just remove
it?

BTW, when running ‘sudo guix install’, the hint is going to
~root/.cache/guix, right?

Thanks,
Ludo’.

Message #17 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 57031 <at> debbugs.gnu.org
Subject: Re: bug#57031: [PATCH] scripts: Show a hint the first time some
 commands are run as root.
Date: Sun, 11 Sep 2022 14:05:28 +0100

Hey Ludo,

On Mon Sep 5, 2022 at 10:11 PM BST, Ludovic Courtès wrote:
> One nitpick: Could you make moving the hint code from shell.scm to
> ui.scm a separate commit?

Sure!

> > +         (display-hint (G_ "`guix pull' is user-specific, not system-wide;
> > +running it as root will only affect the `root' user.")))
>
> Please use Texinfo markup in hints: @command{guix pull}, etc.  (Likewise
> for the second hint.)

Oh, I didn't realize you could do that.

> > +(define* (guix-package* opts #:key (root-hint? #f))
> >    "Run the 'guix package' command on OPTS, an alist resulting for command-line
> > -option processing with 'parse-command-line'."
> > +option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
> > +shown on the first usage of this procedure that informs users about Guix's
> > +support for per-user package management."
> >    (with-error-handling
> > +    (when (and root-hint?
> > +               (not (hint-given? 'package-root-hint))
> > +               (= (getuid) 0))
>
> Unless I’m mistaken, ‘root-hint?’ is always true; should we just remove
> it?

No, it's not always true; we don't use `#:root-hint #t' in `guix search' and
`guix show', so that `sudo guix show foobar' doesn't trigger the root hint.

> BTW, when running ‘sudo guix install’, the hint is going to
> ~root/.cache/guix, right?

Probably -.o.-

    -- (

Message #20 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH v2 1/2] ui: Make one-time hint API public.
Date: Sun, 11 Sep 2022 20:59:40 +0100

* guix/scripts/shell.scm (hint-directory, hint-file, record-hint,
  hint-given?): Move these...
* guix/ui.scm (hint-directory, hint-file, record-hint, hint-given?):
  ...here.
---
 guix/scripts/shell.scm | 23 -----------------------
 guix/ui.scm            | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/guix/scripts/shell.scm b/guix/scripts/shell.scm
index c115a00320..3ac7d80eb0 100644
--- a/guix/scripts/shell.scm
+++ b/guix/scripts/shell.scm
@@ -489,29 +489,6 @@ (define (validated-spec spec)
       (exp
        (pretty-print exp port)))))
 
-
-;;;
-;;; One-time hints.
-;;;
-
-(define (hint-directory)
-  "Return the directory name where previously given hints are recorded."
-  (string-append (cache-directory #:ensure? #f) "/hints"))
-
-(define (hint-file hint)
-  "Return the name of the file that marks HINT as already printed."
-  (string-append (hint-directory) "/" (symbol->string hint)))
-
-(define (record-hint hint)
-  "Mark HINT as already given."
-  (let ((file (hint-file hint)))
-    (mkdir-p (dirname file))
-    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
-
-(define (hint-given? hint)
-  "Return true if HINT was already given."
-  (file-exists? (hint-file hint)))
-
 
 (define-command (guix-shell . args)
   (category development)
diff --git a/guix/ui.scm b/guix/ui.scm
index dad2b853ac..3512c761d2 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -19,6 +19,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Taiju HIGASHI <higashi <at> taiju.info>
 ;;; Copyright © 2022 Liliana Marie Prikler <liliana.prikler <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -137,6 +138,11 @@ (define-module (guix ui)
             switch-to-generation*
             delete-generation*
 
+            hint-directory
+            hint-file
+            record-hint
+            hint-given?
+
             %default-message-language
             current-message-language
 
@@ -2057,6 +2063,29 @@ (define* (package-specification->name+version+output spec
                  (package-name->name+version name)))
     (values name version sub-drv)))
 
+
+;;;
+;;; One-time hints.
+;;;
+
+(define (hint-directory)
+  "Return the directory name where previously given hints are recorded."
+  (string-append (cache-directory #:ensure? #f) "/hints"))
+
+(define (hint-file hint)
+  "Return the name of the file that marks HINT as already printed."
+  (string-append (hint-directory) "/" (symbol->string hint)))
+
+(define (record-hint hint)
+  "Mark HINT as already given."
+  (let ((file (hint-file hint)))
+    (mkdir-p (dirname file))
+    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
+
+(define (hint-given? hint)
+  "Return true if HINT was already given."
+  (file-exists? (hint-file hint)))
+
 
 ;;;
 ;;; Command-line option processing.
-- 
2.37.3

Message #23 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH v2 2/2] scripts: Warn the first time pull or package is run as
 root.
Date: Sun, 11 Sep 2022 20:59:41 +0100

* guix/scripts/pull.scm (guix-pull): Warn the first time it's being
  run as root.
* guix/scripts/package.scm (guix-package*): Likewise if the new
  `root-hint?' argument is `#t'.
(guix-package): Use `#:root-hint? #t' in invocation of `guix-package*'.
* guix/scripts/install.scm (guix-install): Likewise.
* guix/scripts/remove.scm (guix-remove): Likewise.
* guix/scripts/remove.scm (guix-upgrade): Likewise.

A pretty common beginner mistake, it seems, is assuming that since
every other package manager you've used requires root for installing,
removing, and upgrading packages, Guix must too.

This commit tries to make it harder to make such an assumption, by
making commands such as `pull`, `package`, and `upgrade` display
a warning the first time they are run as root.
---
 guix/scripts/install.scm |  3 ++-
 guix/scripts/package.scm | 15 ++++++++++++---
 guix/scripts/pull.scm    |  6 ++++++
 guix/scripts/remove.scm  |  3 ++-
 guix/scripts/upgrade.scm |  3 ++-
 5 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 63e625f266..bf11fc7b11 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -80,4 +81,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 7ba2661bbb..7379e69388 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Josselin Poiret <dev <at> jpoiret.xyz>
 ;;; Copyright © 2022 Antero Mejr <antero <at> mailbox.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1079,12 +1080,20 @@ (define opts
     (parse-command-line args %options (list %default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
 
-(define (guix-package* opts)
+(define* (guix-package* opts #:key (root-hint? #f))
   "Run the 'guix package' command on OPTS, an alist resulting for command-line
-option processing with 'parse-command-line'."
+option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
+shown on the first usage of this procedure that informs users about Guix's
+support for per-user package management."
   (with-error-handling
+    (when (and root-hint?
+               (not (hint-given? 'package-root-hint))
+               (zero? (getuid)))
+      (record-hint 'package-root-hint)
+      (warning (G_ "this command is user-specific, so running it as root \
+will affect only the 'root' user~%")))
     (or (process-query opts)
         (parameterize ((%store  (open-connection))
                        (%graft? (assoc-ref opts 'graft?)))
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index 19224cf70b..188b632450 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2013-2015, 2017-2022 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2017 Marius Bakke <mbakke <at> fastmail.com>
 ;;; Copyright © 2020, 2021 Tobias Geerinckx-Rice <me <at> tobias.gr>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -827,6 +828,11 @@ (define (no-arguments arg _)
     (leave (G_ "~A: extraneous argument~%") arg))
 
   (with-error-handling
+    (when (and (not (hint-given? 'pull-root-hint))
+               (zero? (getuid)))
+      (record-hint 'pull-root-hint)
+      (warning (G_ "this command is user-specific, so running it as root \
+will affect only the 'root' user~%")))
     (with-git-error-handling
      (let* ((opts         (parse-command-line args %options
                                               (list %default-options)
diff --git a/guix/scripts/remove.scm b/guix/scripts/remove.scm
index a46ad04d56..131649eace 100644
--- a/guix/scripts/remove.scm
+++ b/guix/scripts/remove.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -76,4 +77,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/upgrade.scm b/guix/scripts/upgrade.scm
index beb59cbe6f..dd14600fe4 100644
--- a/guix/scripts/upgrade.scm
+++ b/guix/scripts/upgrade.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba <at> kadziolka.net>
 ;;; Copyright © 2020 Simon Tournier <zimon.toutoune <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -87,4 +88,4 @@ (define opts
                               #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
-- 
2.37.3

Message #26 received at submit <at> debbugs.gnu.org (full text, mbox):

From: zimoun <zimon.toutoune <at> gmail.com>
To: "( via Guix-patches via" <guix-patches <at> gnu.org>, 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: Re: [bug#57031] [PATCH v2 2/2] scripts: Warn the first time pull or
 package is run as root.
Date: Wed, 26 Oct 2022 20:14:49 +0200

Hi,

On Sun, 11 Sep 2022 at 20:59, "\( via Guix-patches" via <guix-patches <at> gnu.org> wrote:

> * guix/scripts/pull.scm (guix-pull): Warn the first time it's being
>   run as root.
> * guix/scripts/package.scm (guix-package*): Likewise if the new
>   `root-hint?' argument is `#t'.
> (guix-package): Use `#:root-hint? #t' in invocation of `guix-package*'.
> * guix/scripts/install.scm (guix-install): Likewise.
> * guix/scripts/remove.scm (guix-remove): Likewise.
> * guix/scripts/remove.scm (guix-upgrade): Likewise.
>
> A pretty common beginner mistake, it seems, is assuming that since
> every other package manager you've used requires root for installing,
> removing, and upgrading packages, Guix must too.
>
> This commit tries to make it harder to make such an assumption, by
> making commands such as `pull`, `package`, and `upgrade` display
> a warning the first time they are run as root.

This patch LGTM aside…


> -  (guix-package* opts))
> +  (guix-package* opts #:root-hint? #t))

[...]

> -  (guix-package* opts))
> +  (guix-package* opts #:root-hint? #t))

[...]

> -(define (guix-package* opts)
> +(define* (guix-package* opts #:key (root-hint? #f))

Why this ’root-hint?’ argument?  Is it useful or can we drop it?


> +    (when (and root-hint?
> +               (not (hint-given? 'package-root-hint))
> +               (zero? (getuid)))
> +      (record-hint 'package-root-hint)
> +      (warning (G_ "this command is user-specific, so running it as root \
> +will affect only the 'root' user~%")))

[...]

> +    (when (and (not (hint-given? 'pull-root-hint))
> +               (zero? (getuid)))
> +      (record-hint 'pull-root-hint)
> +      (warning (G_ "this command is user-specific, so running it as root \
> +will affect only the 'root' user~%")))

It looks pretty similar.  Is it possible to avoid the duplication?


Cheers,
simon

Message #32 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: "zimoun" <zimon.toutoune <at> gmail.com>, "( via Guix-patches via"
 <guix-patches <at> gnu.org>, <57031 <at> debbugs.gnu.org>
Subject: Re: [bug#57031] [PATCH v2 2/2] scripts: Warn the first time pull or
 package is run as root.
Date: Thu, 27 Oct 2022 06:52:36 +0100

Heya,

On Wed Oct 26, 2022 at 7:14 PM BST, zimoun wrote:
> > -  (guix-package* opts))
> > +  (guix-package* opts #:root-hint? #t))
>
> [...]
>
> > -  (guix-package* opts))
> > +  (guix-package* opts #:root-hint? #t))
>
> [...]
>
> > -(define (guix-package* opts)
> > +(define* (guix-package* opts #:key (root-hint? #f))
>
> Why this ’root-hint?’ argument?  Is it useful or can we drop it?

This allows us to disable root hints for ``guix package'' variants, so eg
``sudo guix show'' will not trigger the root hint.

> > +    (when (and root-hint?
> > +               (not (hint-given? 'package-root-hint))
> > +               (zero? (getuid)))
> > +      (record-hint 'package-root-hint)
> > +      (warning (G_ "this command is user-specific, so running it as root \
> > +will affect only the 'root' user~%")))
>
> [...]
>
> > +    (when (and (not (hint-given? 'pull-root-hint))
> > +               (zero? (getuid)))
> > +      (record-hint 'pull-root-hint)
> > +      (warning (G_ "this command is user-specific, so running it as root \
> > +will affect only the 'root' user~%")))
>
> It looks pretty similar.  Is it possible to avoid the duplication?

...I guess? Maybe we could do something like this?:

  ;;;; guix/scripts.scm

  (define (warn-if-root hint-name)
    (when (and (not (hint-given hint-name))
               (zero? (getuid)))
      (record-hint hint-name)
      (warning (G_ "this command is user-specific, so running it as root \
  > > +will affect only the 'root' user~%"))))

  ;;;; guix/scripts/package.scm

  (when root-hint?
    (warn-if-root 'package-root-hint))

  ;;;; guix/scripts/pull.scm

  (warn-if-root 'pull-root-hint)

    -- (

Message #38 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH v3 1/2] ui: Make one-time hint API public.
Date: Thu, 27 Oct 2022 20:42:42 +0100

* guix/scripts/shell.scm (hint-directory, hint-file, record-hint,
  hint-given?): Move these...
* guix/ui.scm (hint-directory, hint-file, record-hint, hint-given?):
  ...here.
---
 guix/scripts/shell.scm | 23 -----------------------
 guix/ui.scm            | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/guix/scripts/shell.scm b/guix/scripts/shell.scm
index a2836629ad..c66ff4e5c4 100644
--- a/guix/scripts/shell.scm
+++ b/guix/scripts/shell.scm
@@ -505,29 +505,6 @@ (define (validated-spec spec)
       (exp
        (pretty-print exp port)))))
 
-
-;;;
-;;; One-time hints.
-;;;
-
-(define (hint-directory)
-  "Return the directory name where previously given hints are recorded."
-  (string-append (cache-directory #:ensure? #f) "/hints"))
-
-(define (hint-file hint)
-  "Return the name of the file that marks HINT as already printed."
-  (string-append (hint-directory) "/" (symbol->string hint)))
-
-(define (record-hint hint)
-  "Mark HINT as already given."
-  (let ((file (hint-file hint)))
-    (mkdir-p (dirname file))
-    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
-
-(define (hint-given? hint)
-  "Return true if HINT was already given."
-  (file-exists? (hint-file hint)))
-
 
 (define-command (guix-shell . args)
   (category development)
diff --git a/guix/ui.scm b/guix/ui.scm
index dad2b853ac..3512c761d2 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -19,6 +19,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Taiju HIGASHI <higashi <at> taiju.info>
 ;;; Copyright © 2022 Liliana Marie Prikler <liliana.prikler <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -137,6 +138,11 @@ (define-module (guix ui)
             switch-to-generation*
             delete-generation*
 
+            hint-directory
+            hint-file
+            record-hint
+            hint-given?
+
             %default-message-language
             current-message-language
 
@@ -2057,6 +2063,29 @@ (define* (package-specification->name+version+output spec
                  (package-name->name+version name)))
     (values name version sub-drv)))
 
+
+;;;
+;;; One-time hints.
+;;;
+
+(define (hint-directory)
+  "Return the directory name where previously given hints are recorded."
+  (string-append (cache-directory #:ensure? #f) "/hints"))
+
+(define (hint-file hint)
+  "Return the name of the file that marks HINT as already printed."
+  (string-append (hint-directory) "/" (symbol->string hint)))
+
+(define (record-hint hint)
+  "Mark HINT as already given."
+  (let ((file (hint-file hint)))
+    (mkdir-p (dirname file))
+    (close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
+
+(define (hint-given? hint)
+  "Return true if HINT was already given."
+  (file-exists? (hint-file hint)))
+
 
 ;;;
 ;;; Command-line option processing.

base-commit: f928abac369f699f425ddee925d0d0c2dc0a635d
-- 
2.38.0

Message #41 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: 57031 <at> debbugs.gnu.org
Cc: "\(" <paren <at> disroot.org>
Subject: [PATCH v3 2/2] scripts: Warn the first time pull or package is run as
 root.
Date: Thu, 27 Oct 2022 20:42:43 +0100

* guix/ui.scm (root-warning): New variable.
* guix/scripts/pull.scm (guix-pull): Warn the first time it's being
  run as root.
* guix/scripts/package.scm (guix-package*): Likewise if the new
  `root-hint?' argument is `#t'.
(guix-package): Use `#:root-hint? #t' in invocation of `guix-package*'.
* guix/scripts/install.scm (guix-install): Likewise.
* guix/scripts/remove.scm (guix-remove): Likewise.
* guix/scripts/remove.scm (guix-upgrade): Likewise.

A pretty common beginner mistake, it seems, is assuming that since
every other package manager you've used requires root for installing,
removing, and upgrading packages, Guix must too.

This commit tries to make it harder to make such an assumption, by
making commands such as `pull`, `package`, and `upgrade` display
a warning the first time they are run as root.
---
 guix/scripts/install.scm |  3 ++-
 guix/scripts/package.scm | 11 ++++++++---
 guix/scripts/pull.scm    |  2 ++
 guix/scripts/remove.scm  |  3 ++-
 guix/scripts/upgrade.scm |  3 ++-
 guix/ui.scm              |  8 ++++++++
 6 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 63e625f266..bf11fc7b11 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -80,4 +81,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index b9090307ac..10cf32475b 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -12,6 +12,7 @@
 ;;; Copyright © 2018 Steve Sprang <scs <at> stevesprang.com>
 ;;; Copyright © 2022 Josselin Poiret <dev <at> jpoiret.xyz>
 ;;; Copyright © 2022 Antero Mejr <antero <at> mailbox.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1078,12 +1079,16 @@ (define opts
     (parse-command-line args %options (list %default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
 
-(define (guix-package* opts)
+(define* (guix-package* opts #:key (root-hint? #f))
   "Run the 'guix package' command on OPTS, an alist resulting for command-line
-option processing with 'parse-command-line'."
+option processing with 'parse-command-line'.  If ROOT-HINT? is #T, a hint is
+shown on the first usage of this procedure that informs users about Guix's
+support for per-user package management."
   (with-error-handling
+    (when root-hint?
+      (root-warning 'package-root-hint))
     (or (process-query opts)
         (parameterize ((%store  (open-connection))
                        (%graft? (assoc-ref opts 'graft?)))
diff --git a/guix/scripts/pull.scm b/guix/scripts/pull.scm
index 7b6c58dbc3..98aaf0b377 100644
--- a/guix/scripts/pull.scm
+++ b/guix/scripts/pull.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2013-2015, 2017-2022 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2017 Marius Bakke <mbakke <at> fastmail.com>
 ;;; Copyright © 2020, 2021 Tobias Geerinckx-Rice <me <at> tobias.gr>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -826,6 +827,7 @@ (define (no-arguments arg _)
     (leave (G_ "~A: extraneous argument~%") arg))
 
   (with-error-handling
+    (root-warning 'pull-root-hint)
     (with-git-error-handling
      (let* ((opts         (parse-command-line args %options
                                               (list %default-options)
diff --git a/guix/scripts/remove.scm b/guix/scripts/remove.scm
index a46ad04d56..131649eace 100644
--- a/guix/scripts/remove.scm
+++ b/guix/scripts/remove.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -76,4 +77,4 @@ (define opts
                         (list %package-default-options #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/scripts/upgrade.scm b/guix/scripts/upgrade.scm
index beb59cbe6f..dd14600fe4 100644
--- a/guix/scripts/upgrade.scm
+++ b/guix/scripts/upgrade.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2019, 2020 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2020 Jakub Kądziołka <kuba <at> kadziolka.net>
 ;;; Copyright © 2020 Simon Tournier <zimon.toutoune <at> gmail.com>
+;;; Copyright © 2022 ( <paren <at> disroot.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -87,4 +88,4 @@ (define opts
                               #f)
                         #:argument-handler handle-argument))
 
-  (guix-package* opts))
+  (guix-package* opts #:root-hint? #t))
diff --git a/guix/ui.scm b/guix/ui.scm
index 3512c761d2..0f1a603025 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -142,6 +142,7 @@ (define-module (guix ui)
             hint-file
             record-hint
             hint-given?
+            root-warning
 
             %default-message-language
             current-message-language
@@ -2086,6 +2087,13 @@ (define (hint-given? hint)
   "Return true if HINT was already given."
   (file-exists? (hint-file hint)))
 
+(define (root-warning hint-name)
+  (when (and (not (hint-given? hint-name))
+             (zero? (getuid)))
+    (record-hint hint-name)
+    (warning (G_ "this command is user-specific, so running it as root \
+will affect only the 'root' user~%"))))
+
 
 ;;;
 ;;; Command-line option processing.
-- 
2.38.0

Message #44 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: zimoun <zimon.toutoune <at> gmail.com>
To: "(" <paren <at> disroot.org>, 57031 <at> debbugs.gnu.org
Subject: Re: [bug#57031] [PATCH v2 2/2] scripts: Warn the first time pull or
 package is run as root.
Date: Thu, 27 Oct 2022 10:23:19 +0200

Hi,

On Thu, 27 Oct 2022 at 06:52, "\( via Guix-patches" via <guix-patches <at> gnu.org> wrote:
> On Wed Oct 26, 2022 at 7:14 PM BST, zimoun wrote:
>> > -  (guix-package* opts))
>> > +  (guix-package* opts #:root-hint? #t))
>>
>> [...]
>>
>> > -  (guix-package* opts))
>> > +  (guix-package* opts #:root-hint? #t))
>>
>> [...]
>>
>> > -(define (guix-package* opts)
>> > +(define* (guix-package* opts #:key (root-hint? #f))
>>
>> Why this ’root-hint?’ argument?  Is it useful or can we drop it?
>
> This allows us to disable root hints for ``guix package'' variants, so eg
> ``sudo guix show'' will not trigger the root hint.

Ah, I see.  But then,

    guix package --show=hello

would print the hint, no?

>   ;;;; guix/scripts.scm
>
>   (define (warn-if-root hint-name)
>     (when (and (not (hint-given hint-name))
>                (zero? (getuid)))
>       (record-hint hint-name)
>       (warning (G_ "this command is user-specific, so running it as root \
>   > > +will affect only the 'root' user~%"))))
>
>   ;;;; guix/scripts/package.scm
>
>   (when root-hint?
>     (warn-if-root 'package-root-hint))
>
>   ;;;; guix/scripts/pull.scm
>
>   (warn-if-root 'pull-root-hint)

Something like that SGTM.


Cheers,
simon

Message #47 received at 57031 <at> debbugs.gnu.org (full text, mbox):

From: "(" <paren <at> disroot.org>
To: "zimoun" <zimon.toutoune <at> gmail.com>, <57031 <at> debbugs.gnu.org>
Subject: Re: [bug#57031] [PATCH v2 2/2] scripts: Warn the first time pull or
 package is run as root.
Date: Fri, 28 Oct 2022 15:33:35 +0100

On Thu Oct 27, 2022 at 9:23 AM BST, zimoun wrote:
> Ah, I see.  But then,
>
>     guix package --show=hello
>
> would print the hint, no?

Sadly, yes. I'm not sure how to remedy this, and it doesn't seem too
consequential; I've never seen someone using ``--show'' or ``--search''
in practice.

    -- (

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