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Refactor Alacritty scripts
This includes some changes to the scripts `README.md` to provide some more information on the different Alacritty scripts. A new script for testing the 24 bit support of Alacritty has been added with the `24-bit-color.sh` name. This should help with troubleshooting truecolor support issues. Since `perf` is a standard tool which is available in the official repositories for most distributions, it doesn't make much sense to provide an installation script specifically for Ubuntu. As a result of this, the script has been removed.
This commit is contained in:
Nathan Lilienthal
Christian Duerr
parent
6b61e96739
commit
f32facfbfd
5 changed files with 156 additions and 30 deletions
101
scripts/24-bit-color.sh
Executable file
101
scripts/24-bit-color.sh
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#!/bin/bash
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# This file was originally taken from iterm2 https://github.com/gnachman/iTerm2/blob/master/tests/24-bit-color.sh
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#
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# This file echoes a bunch of 24-bit color codes
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# to the terminal to demonstrate its functionality.
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# The foreground escape sequence is ^[38;2;<r>;<g>;<b>m
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# The background escape sequence is ^[48;2;<r>;<g>;<b>m
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# <r> <g> <b> range from 0 to 255 inclusive.
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# The escape sequence ^[0m returns output to default
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setBackgroundColor()
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{
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#printf '\x1bPtmux;\x1b\x1b[48;2;%s;%s;%sm' $1 $2 $3
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printf '\x1b[48;2;%s;%s;%sm' $1 $2 $3
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}
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resetOutput()
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{
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echo -en "\x1b[0m\n"
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}
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# Gives a color $1/255 % along HSV
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# Who knows what happens when $1 is outside 0-255
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# Echoes "$red $green $blue" where
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# $red $green and $blue are integers
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# ranging between 0 and 255 inclusive
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rainbowColor()
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{
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let h=$1/43
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let f=$1-43*$h
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let t=$f*255/43
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let q=255-t
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if [ $h -eq 0 ]
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then
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echo "255 $t 0"
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elif [ $h -eq 1 ]
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then
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echo "$q 255 0"
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elif [ $h -eq 2 ]
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then
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echo "0 255 $t"
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elif [ $h -eq 3 ]
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then
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echo "0 $q 255"
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elif [ $h -eq 4 ]
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then
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echo "$t 0 255"
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elif [ $h -eq 5 ]
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then
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echo "255 0 $q"
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else
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# execution should never reach here
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echo "0 0 0"
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fi
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}
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for i in `seq 0 127`; do
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setBackgroundColor $i 0 0
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echo -en " "
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done
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resetOutput
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for i in `seq 255 -1 128`; do
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setBackgroundColor $i 0 0
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echo -en " "
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done
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resetOutput
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for i in `seq 0 127`; do
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setBackgroundColor 0 $i 0
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echo -n " "
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done
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resetOutput
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for i in `seq 255 -1 128`; do
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setBackgroundColor 0 $i 0
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echo -n " "
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done
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resetOutput
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for i in `seq 0 127`; do
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setBackgroundColor 0 0 $i
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echo -n " "
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done
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resetOutput
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for i in `seq 255 -1 128`; do
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setBackgroundColor 0 0 $i
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echo -n " "
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done
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resetOutput
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for i in `seq 0 127`; do
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setBackgroundColor `rainbowColor $i`
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echo -n " "
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done
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resetOutput
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for i in `seq 255 -1 128`; do
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setBackgroundColor `rainbowColor $i`
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echo -n " "
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done
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resetOutput
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@ -1,20 +1,26 @@
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scripts
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Scripts
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=======
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There are two scripts included at the time this README was written, and they
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both support flamegraph generation on Ubuntu. The first script installs the
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required dependencies:
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## Flamegraph
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Run the release version of Alacritty while recording call stacks. After the
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Alacritty process exits, a flamegraph will be generated and it's URI printed
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as the only output to STDOUT.
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```sh
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scripts/ubuntu-install-perf.sh
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./create-flamegraph.sh
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```
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The second script will run Alacritty while recording call stacks. After the
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Alacritty process exits, a flamegraph will be generated and its URI printed.
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Running this script depends on an installation of `perf`.
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## ANSI Color Tests
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We include a few scripts for testing the color of text inside a terminal. The
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first shows various foreground and background varients. The second enumerates
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all the colors of a standard terminal. The third enumerates the 24-bit colors.
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```sh
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scripts/create-flamegraph.sh
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./fg-bg.sh
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./colors.sh
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./24-bit-colors.sh
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```
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**NOTE**: The _create-flamegraph.sh_ script is intended to be run from the
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alacritty project root.
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11
scripts/colors.sh
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11
scripts/colors.sh
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#!/bin/bash
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for x in {0..8}; do
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for i in {30..37}; do
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for a in {40..47}; do
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echo -ne "\e[$x;$i;$a""m\\\e[$x;$i;$a""m\e[0;37;40m "
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done
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echo
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done
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done
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echo ""
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@ -1,19 +1,38 @@
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#!/usr/bin/env bash
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# Make sure FlameGraph scripts are available
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if [ ! -e ./FlameGraph ]
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# The full path to the script directory, regardless of pwd.
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DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# Current UNIX time.
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TIME=$(date +%s)
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# Make sure FlameGraph scripts are available.
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if [ ! -e $DIR/FlameGraph ]
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then
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git clone https://github.com/BrendanGregg/FlameGraph
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git clone https://github.com/BrendanGregg/FlameGraph \
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$DIR/create-flamegraph/FlameGraph
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fi
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if [ ! -e target/release/alacritty ]
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# Make sure a release build of Alacritty is available.
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if [ ! -e $DIR/../target/release/alacritty ]
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then
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echo "Must build alacritty first: cargo build --release"
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exit 1
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fi
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# This will block while alacritty runs
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perf record -g -F 99 target/release/alacritty
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perf script | ./FlameGraph/stackcollapse-perf.pl | ./FlameGraph/flamegraph.pl --width 1920 > alacritty.svg
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# Make sure perf is available.
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if [ ! -x "$(command -v perf)" ]
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then
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echo "Cannot find perf, please make sure it's installed"
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exit 1
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fi
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echo "Flame graph created at file://$(pwd)/alacritty.svg"
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# Run perf, this will block while alacritty runs.
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perf record -g -F 99 $DIR/../target/release/alacritty
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perf script \
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| $DIR/create-flamegraph/FlameGraph/stackcollapse-perf.pl \
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| $DIR/create-flamegraph/FlameGraph/flamegraph.pl --width 1920 \
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> flame-$TIME.svg
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# Tell users where the file is.
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echo "Flame graph created at: file://$(pwd)/flame-$TIME.svg"
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@ -1,11 +0,0 @@
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#!/usr/bin/env bash
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set -v
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# Get kernel info
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UNAME=$(uname -r)
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# Install linux tools for the perf binary
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sudo apt-get install -y \
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linux-tools-common \
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linux-tools-generic \
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linux-tools-$UNAME
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