[bug#56612] [PATCH] guix install: Add '--manifest' option.

[Ludovic Courtès]

* guix/scripts/install.scm (show-help, %options): Add "--manifest".
* tests/guix-package-aliases.sh" Test "guix install -m".
---
 guix/scripts/install.scm      |  8 ++++++--
 tests/guix-package-aliases.sh | 16 +++++++++++++---
 2 files changed, 19 insertions(+), 5 deletions(-)

Hi!

I think it’s convenient and quite natural to be able to type:

  guix install -m manifest.scm

Hence this patch.  Objections?  :-)

Thanks,
Ludo’.

diff --git a/guix/scripts/install.scm b/guix/scripts/install.scm
index 63e625f266..0d24d7c956 100644
--- a/guix/scripts/install.scm
+++ b/guix/scripts/install.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2019, 2020, 2022 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -33,6 +33,9 @@ (define (show-help)
 This is an alias for 'guix package -i'.\n"))
   (display (G_ "
   -p, --profile=PROFILE  use PROFILE instead of the user's default profile"))
+  (display (G_ "
+  -m, --manifest=FILE    create a new profile generation with the manifest
+                         from FILE"))
   ;; '--bootstrap' not shown here.
   (display (G_ "
   -v, --verbosity=LEVEL  use the given verbosity LEVEL"))
@@ -61,7 +64,8 @@ (define %options
          ;; Preserve some of the 'guix package' options.
          (append (filter (lambda (option)
                            (any (cut member <> (option-names option))
-                                '("profile" "dry-run" "verbosity" 
"bootstrap")))
+                                '("profile" "dry-run" "verbosity" "bootstrap"
+                                  "manifest")))
                          %package-options)
 
                  %transformation-options
diff --git a/tests/guix-package-aliases.sh b/tests/guix-package-aliases.sh
index 311838b768..99cb9176cd 100644
--- a/tests/guix-package-aliases.sh
+++ b/tests/guix-package-aliases.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2019, 2020, 2022 Ludovic Courtès <ludo@gnu.org>
 #
 # This file is part of GNU Guix.
 #
@@ -28,9 +28,10 @@ readlink_base ()
 }
 
 profile="t-profile-$$"
-rm -f "$profile"
+manifest="t-manifest-$$"
+rm -f "$profile" "$manifest"
 
-trap 'rm -f "$profile" "$profile-"[0-9]*' EXIT
+trap 'rm -f "$profile" "$profile-"[0-9]* "$manifest"' EXIT
 
 guix install --bootstrap guile-bootstrap -p "$profile"
 test -x "$profile/bin/guile"
@@ -55,6 +56,15 @@ guix remove --bootstrap guile-bootstrap -p "$profile"
 ! test -x "$profile/bin/guile"
 test `guix package -p "$profile" -I | wc -l` -eq 0
 
+# Installing from a manifest.
+cat > "$manifest" <<EOF
+(specifications->manifest '("guile-bootstrap"))
+EOF
+guix install -p "$profile" -m "$manifest" --bootstrap
+test -x "$profile/bin/guile"
+guix remove --bootstrap guile-bootstrap -p "$profile"
+! test -x "$profile/bin/guile"
+
 ! guix remove -p "$profile" this-is-not-installed --bootstrap
 
 ! guix remove -i guile-bootstrap -p "$profile" --bootstrap
-- 
2.36.1