56 lines
1.2 KiB
Bash
Executable File
56 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# shellcheck source=/dev/null
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#
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# pfetch - Simple POSIX sh fetch script.
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die() {
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printf '\033[31;1merror\033[m: %s.\n' "$@" >&2
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exit 1
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}
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log() {
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printf '\033[3%s;1m%s\033[m%s%s\n' "$1" "$2" "$3" "${4:-unknown}"
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}
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get_os() {
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case $kernel_name in
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Linux|GNU*) os=linux ;;
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*)
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die "Unknown OS detected '$kernel_name'" \
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"Open an issue on GitHub to add support for your OS"
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;;
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esac
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}
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get_distro() {
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case $os in
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linux)
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. /etc/os-release && distro=$PRETTY_NAME
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;;
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esac
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log 1 os " " "$distro"
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}
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main() {
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# Hide 'stderr' unless the first argument is '-v'. This saves
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# polluting the script with '2>/dev/null'.
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[ "$1" = -v ] || exec 2>/dev/null
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# Store the output of 'uname' to avoid calling it multiple times
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# throughout the script. 'read <<EOF' is the simplest way of reading
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# a command into a list of variables.
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#
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# NOTE: To avoid breaking indentation with 'EOF', '-EOF' is used.
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# This has the caveat that the lines be TAB indented.
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read -r kernel_name kernel_version kernel_machine <<-EOF
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$(uname -srm)
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EOF
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get_os
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get_distro
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}
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main "$@"
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