[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[bug#60068] [PATCH 1/2] guix-install.sh: Add GUIX_ALLOW_OVERWRITE enviro
From: |
Maxim Cournoyer |
Subject: |
[bug#60068] [PATCH 1/2] guix-install.sh: Add GUIX_ALLOW_OVERWRITE environment variable. |
Date: |
Wed, 14 Dec 2022 10:56:02 -0500 |
The need for this use case appeared when attempting to install Guix on a truly
minimal image made with Buildroot, which lacked enough GNU components that I
had to extract a guix pack to /gnu before attempting installation, which would
then refuse to proceed because of the existing /gnu.
* etc/guix-install.sh: Document environment variables.
(REQUIRE): Add missing "useradd" command.
(sys_create_store) [GUIX_ALLOW_OVERWRITE]: Skip pre-existing installation
checks and output a warning. Extract the tarball directly to /.
---
etc/guix-install.sh | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/etc/guix-install.sh b/etc/guix-install.sh
index fb9006b3e2..06730f7e3f 100755
--- a/etc/guix-install.sh
+++ b/etc/guix-install.sh
@@ -29,6 +29,22 @@
# We require Bash but for portability we'd rather not use /bin/bash or
# /usr/bin/env in the shebang, hence this hack.
+
+# Environment variables
+#
+# GUIX_BINARY_FILE_NAME
+#
+# Can be used to override the automatic download mechanism and point
+# to a local Guix binary archive filename like
+# "/tmp/guix-binary-1.4.0rc2.armhf-linux.tar.xz"
+#
+# GUIX_ALLOW_OVERWRITE
+#
+# Instead of aborting to avoid overwriting a previous installations,
+# allow copying over /var/guix or /gnu. This can be useful when the
+# installation required the user to extract Guix packs under /gnu to
+# satisfy its dependencies.
+
if [ "x$BASH_VERSION" = "x" ]
then
exec bash "$0" "$@"
@@ -53,6 +69,7 @@ REQUIRE=(
"chmod"
"uname"
"groupadd"
+ "useradd"
"tail"
"tr"
"xz"
@@ -337,16 +354,15 @@ sys_create_store()
_debug "--- [ ${FUNCNAME[0]} ] ---"
- if [[ -e "/var/guix" || -e "/gnu" ]]; then
+ if [[ -z $GUIX_ALLOW_OVERWRITE && (-e /var/guix || -e /gnu) ]]; then
die "A previous Guix installation was found. Refusing to overwrite."
+ else
+ _msg "${WAR}Overwriting existing installation!"
fi
cd "$tmp_path"
- tar --extract --file "$pkg" && _msg "${PAS}unpacked archive"
-
_msg "${INF}Installing /var/guix and /gnu..."
- mv "${tmp_path}/var/guix" /var/
- mv "${tmp_path}/gnu" /
+ tar --extract --file "$pkg" -C /
_msg "${INF}Linking the root user's profile"
mkdir -p ~root/.config/guix
base-commit: 1b6e251ed1bae7aa2f544e8ccb6b4aaf872e77e6
--
2.38.1