q3aql/pfetch
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pfetch: control stdout

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This commit is contained in:
Dylan Araps 2019-09-25 08:45:23 +03:00
parent 4a0d29c4e3
commit 0a4a100eb3
1 changed files with 41 additions and 41 deletions
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pfetch
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@ -79,12 +79,6 @@ log() {
: $((info_height+=1)) : $((info_height+=1))
} }
# Simple function to avoid '>/dev/null' spam.
# This checks to see if a command is in '$PATH'.
has() {
command -v "$1" >/dev/null
}
get_title() { get_title() {
# Username is retrieved by first checking '$USER' with a fallback # Username is retrieved by first checking '$USER' with a fallback
# to the 'whoami' command. # to the 'whoami' command.
@ -99,7 +93,7 @@ get_title() {
# shellcheck disable=SC2039 # shellcheck disable=SC2039
host=${HOSTNAME:-${hostname:-$(hostname)}} host=${HOSTNAME:-${hostname:-$(hostname)}}
log "[3${PF_COL3:-1}m${user}${c7}@[3${PF_COL3:-1}m${host}" log "[3${PF_COL3:-1}m${user}${c7}@[3${PF_COL3:-1}m${host}" >&6
} }
get_os() { get_os() {
@ -110,23 +104,23 @@ get_os() {
# On first run, this function displays _nothing_, only on the second # On first run, this function displays _nothing_, only on the second
# invocation is 'log()' called. # invocation is 'log()' called.
[ "$distro" ] && { [ "$distro" ] && {
log os "$distro" log os "$distro" >&6
return return
} }
case $os in case $os in
Linux*) Linux*)
has lsb_release && distro=$(lsb_release -sd) command -v lsb_release && distro=$(lsb_release -sd)
# Disable warning about shellcheck not being able # Disable warning about shellcheck not being able
# to read '/etc/os-release'. This is fine. # to read '/etc/os-release'. This is fine.
# shellcheck source=/dev/null # shellcheck source=/dev/null
. /etc/os-release && distro=$PRETTY_NAME . /etc/os-release && distro=$PRETTY_NAME
# Special cases for distributions which don't follow. # Special cases for distributions which don't follow.
# the '/etc/os-release' "standard". # the '/etc/os-release' "standard".
has crux && distro=$(crux) command -v crux && distro=$(crux)
has guix && distro='Guix System' command -v guix && distro='Guix System'
;; ;;
Darwin*) Darwin*)
@ -151,13 +145,13 @@ get_kernel() {
*BSD*) ;; *BSD*) ;;
*) *)
log kernel "$kernel" log kernel "$kernel" >&6
;; ;;
esac esac
} }
get_shell() { get_shell() {
log shell "${SHELL##*/}" log shell "${SHELL##*/}" >&6
} }
get_host() { get_host() {
@ -182,7 +176,7 @@ get_host() {
;; ;;
esac esac
log host "$host" log host "$host" >&6
} }
get_uptime() { get_uptime() {
@ -218,7 +212,7 @@ get_uptime() {
[ "$h" = 0 ] || uptime="${uptime}${h}h " [ "$h" = 0 ] || uptime="${uptime}${h}h "
[ "$m" = 0 ] || uptime="${uptime}${m}m " [ "$m" = 0 ] || uptime="${uptime}${m}m "
log uptime "${uptime:-0m}" log uptime "${uptime:-0m}" >&6
} }
get_pkgs() { get_pkgs() {
@ -233,47 +227,49 @@ get_pkgs() {
case $os in case $os in
Linux*) Linux*)
# Commands which print packages one per line. # Commands which print packages one per line.
has kiss && kiss l command -v kiss && kiss l
has bonsai && bonsai list command -v bonsai && bonsai list
has pacman-key && pacman -Qq command -v pacman-key && pacman -Qq
has dpkg && dpkg-query -f '.\n' -W command -v dpkg && dpkg-query -f '.\n' -W
has rpm && rpm -qa command -v rpm && rpm -qa
has xbps-query && xbps-query -l command -v xbps-query && xbps-query -l
has apk && apk info command -v apk && apk info
# Directories containing packages. # Directories containing packages.
has brew && printf '%s\n' "$(brew --cellar)/"* command -v brew && printf '%s\n' "$(brew --cellar)/"*
has emerge && printf '%s\n' /var/db/pkg/*/*/ command -v emerge && printf '%s\n' /var/db/pkg/*/*/
# GUIX requires two commands. # GUIX requires two commands.
has guix && guix package -p /run/current-system/profile -I command -v guix && {
has guix && guix package -I guix package -p /run/current-system/profile -I
guix package -I
}
;; ;;
Darwin*) Darwin*)
# Commands which print packages one per line. # Commands which print packages one per line.
has pkgin && pkgin list command -v pkgin && pkgin list
has port && port installed command -v port && port installed
# Directories containing packages. # Directories containing packages.
has brew && printf '%s\n' /usr/local/Cellar/* command -v brew && printf '%s\n' /usr/local/Cellar/*
;; ;;
FreeBSD*) FreeBSD*)
# Commands which print packages one per line. # Commands which print packages one per line.
has pkg && pkg info command -v pkg && pkg info
;; ;;
*BSD*) *BSD*)
# Commands which print packages one per line. # Commands which print packages one per line.
has pkginfo && pkginfo -i command -v pkginfo && pkginfo -i
has pkg && pkg list command -v pkg && pkg list
has pkg_info && pkg_info command -v pkg_info && pkg_info
;; ;;
esac | wc -l esac | wc -l
) )
log pkgs "$packages" log pkgs "$packages" >&6
} }
get_memory() { get_memory() {
@ -345,7 +341,7 @@ get_memory() {
;; ;;
esac esac
log memory "${mem_used:-?}MiB / ${mem_full:-?}MiB" log memory "${mem_used:-?}MiB / ${mem_full:-?}MiB" >&6
} }
get_ascii() { get_ascii() {
@ -718,8 +714,8 @@ get_ascii() {
return return
} }
printf 'error: %s is not currently supported.\n' "$os" printf 'error: %s is not currently supported.\n' "$os" >&6
printf 'error: Open an issue on GitHub for support to be added.\n' printf 'error: Open an issue for support to be added.\n' >&6
exit 1 exit 1
;; ;;
esac esac
@ -757,19 +753,23 @@ get_ascii() {
# '[1m': Print the ascii in bold. # '[1m': Print the ascii in bold.
# '[m': Clear bold. # '[m': Clear bold.
# '[%sA: Move the cursor up '$ascii_height' amount of lines. # '[%sA: Move the cursor up '$ascii_height' amount of lines.
printf '[?7l[?25l%s[%sA' "$ascii" "$ascii_height" printf '[?7l[?25l%s[%sA' "$ascii" "$ascii_height" >&6
} }
main() { main() {
# Leave the terminal how we found it on exit or Ctrl+C. # Leave the terminal how we found it on exit or Ctrl+C.
# '[?7h': Enable line-wrapping. # '[?7h': Enable line-wrapping.
# '[?25h': Un-hide the cursor. # '[?25h': Un-hide the cursor.
trap 'printf [?7h[?25h' EXIT trap 'printf [?7h[?25h >&6' EXIT
# Hide 'stderr' unless the first argument is '-v'. This saves # Hide 'stderr' unless the first argument is '-v'. This saves
# polluting the script with '2>/dev/null'. # polluting the script with '2>/dev/null'.
[ "$1" = -v ] || exec 2>/dev/null [ "$1" = -v ] || exec 2>/dev/null
# Hide 'stdout' and selectively print to it using '>&6'.
# This gives full control over what it displayed on the screen.
exec 6>&1 >/dev/null
# Generic color list. # Generic color list.
# Disable warning about unused variables. # Disable warning about unused variables.
# shellcheck disable=2034 # shellcheck disable=2034
@ -823,7 +823,7 @@ main() {
# Print '$cursor_pos' amount of newlines. Using cursor down doesn't scroll # Print '$cursor_pos' amount of newlines. Using cursor down doesn't scroll
# the screen correctly if this causes the cursor to hit the bottom of the # the screen correctly if this causes the cursor to hit the bottom of the
# window. Using '0' gives us an extra iteration, adding a bottom line gap. # window. Using '0' gives us an extra iteration, adding a bottom line gap.
printf '%0.s\n' $(seq 0 "$cursor_pos") printf '%0.s\n' $(seq 0 "$cursor_pos") >&6
} }
main "$@" main "$@"