From f32facfbfd3d46b76744d118fd2fa5123501f900 Mon Sep 17 00:00:00 2001
From: Nathan Lilienthal <nathan@nixpulvis.com>
Date: Sat, 8 Dec 2018 15:28:57 -0500
Subject: 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.
---
 scripts/create-flamegraph.sh | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

(limited to 'scripts/create-flamegraph.sh')

diff --git a/scripts/create-flamegraph.sh b/scripts/create-flamegraph.sh
index 8c03aa28..71af6a93 100755
--- a/scripts/create-flamegraph.sh
+++ b/scripts/create-flamegraph.sh
@@ -1,19 +1,38 @@
 #!/usr/bin/env bash
 
-# Make sure FlameGraph scripts are available
-if [ ! -e ./FlameGraph ]
+# The full path to the script directory, regardless of pwd.
+DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+
+# Current UNIX time.
+TIME=$(date +%s)
+
+# Make sure FlameGraph scripts are available.
+if [ ! -e $DIR/FlameGraph ]
 then
-    git clone https://github.com/BrendanGregg/FlameGraph
+    git clone https://github.com/BrendanGregg/FlameGraph \
+        $DIR/create-flamegraph/FlameGraph
 fi
 
-if [ ! -e target/release/alacritty ]
+# Make sure a release build of Alacritty is available.
+if [ ! -e $DIR/../target/release/alacritty ]
 then
     echo "Must build alacritty first: cargo build --release"
     exit 1
 fi
 
-# This will block while alacritty runs
-perf record -g -F 99 target/release/alacritty
-perf script | ./FlameGraph/stackcollapse-perf.pl | ./FlameGraph/flamegraph.pl --width 1920 > alacritty.svg
+# Make sure perf is available.
+if [ ! -x "$(command -v perf)" ]
+then
+    echo "Cannot find perf, please make sure it's installed"
+    exit 1
+fi
+
+# Run perf, this will block while alacritty runs.
+perf record -g -F 99 $DIR/../target/release/alacritty
+perf script \
+    | $DIR/create-flamegraph/FlameGraph/stackcollapse-perf.pl \
+    | $DIR/create-flamegraph/FlameGraph/flamegraph.pl --width 1920 \
+    > flame-$TIME.svg
 
-echo "Flame graph created at file://$(pwd)/alacritty.svg"
+# Tell users where the file is.
+echo "Flame graph created at: file://$(pwd)/flame-$TIME.svg"
-- 
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