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| author | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2022-12-14 10:31:52 -0500 |
|---|---|---|
| committer | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2023-02-17 02:55:43 +0100 |
| commit | 23d56ba150ddeaa58e96b3ecf9df251fbd05ed00 (patch) | |
| tree | f5156c32c74ef5ac3292039c98772b4ac6949a7f | |
| parent | 28bd26b6b8245c71bc474237b24498caa832cc25 (diff) | |
| download | guix-23d56ba150ddeaa58e96b3ecf9df251fbd05ed00.tar.gz | |
guix-install.sh: Add GUIX_ALLOW_OVERWRITE environment variable.
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. (sys_create_store) [GUIX_ALLOW_OVERWRITE]: Skip pre-existing installation checks and output a warning. Extract the tarball directly to /.
| -rwxr-xr-x | etc/guix-install.sh | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/etc/guix-install.sh b/etc/guix-install.sh index 3ce9affc06..ea10f35250 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 "$0" "$@" @@ -336,16 +352,15 @@ 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 |