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| author | Matthias Beyer <mail@beyermatthias.de> | 2015-06-06 11:08:11 +0200 |
|---|---|---|
| committer | Matthias Beyer <mail@beyermatthias.de> | 2015-06-06 11:08:11 +0200 |
| commit | c16b3350c7ea4920e44567d4b67bc8614a956f39 (patch) | |
| tree | eac9811ec777d98e2782c458d8e6b948af73643e | |
| parent | b69dffe00dd8d598c988267fe3117c2a5031304b (diff) | |
| parent | 17ba0524409a4a1cc2a6ecbe990bbecd3fdb949e (diff) | |
Merge pull request #16 from matthiasbeyer/add-show-generation
Add show generation
| -rwxr-xr-x | nix-script-show-generation.sh | 49 | ||||
| -rw-r--r-- | nix-utils.sh | 12 |
2 files changed, 61 insertions, 0 deletions
diff --git a/nix-script-show-generation.sh b/nix-script-show-generation.sh new file mode 100755 index 0000000..b08ba83 --- /dev/null +++ b/nix-script-show-generation.sh @@ -0,0 +1,49 @@ +#!/usr/bin/env bash + +source $(dirname ${BASH_SOURCE[0]})/nix-utils.sh + +usage() { + cat <<EOS + $(help_synopsis "${BASH_SOURCE[0]}" "[-s | -u] [-h]") + + -s Show system generation + -u Show user generation (default) + -h Show this help and exit + +$(help_end) +EOS +} + +SYSTEM=0 +USER=1 + +while getopts "suh" OPTION +do + case $OPTION in + s) + SYSTEM=1 + USER=0 + stdout "Showing system generation" + ;; + u) + SYSTEM=0 + USER=1 + stdout "Showing user generation" + ;; + h) + stdout "Showing usage" + usage + exit 0 + ;; + esac +done + +if [[ $SYSTEM -eq 1 ]] +then + current_system_generation +else + current_user_generation +fi + +stdout "Ready" + diff --git a/nix-utils.sh b/nix-utils.sh index b58d86a..49b7b29 100644 --- a/nix-utils.sh +++ b/nix-utils.sh @@ -29,3 +29,15 @@ help_end() { echo "" } +grep_generation() { + $* | grep current | cut -d " " -f 2 +} + +current_system_generation() { + grep_generation "sudo nix-env -p /nix/var/nix/profiles/system --list-generations" +} + +current_user_generation() { + grep_generation "nix-env --list-generations" +} + |