Switch to flamegraph-rs script

This cleans up the Alacritty scripts a bit by removing some of them
which are not recommended to be used anymore and switching from the
official FlameGraph tool to the more specialized Rust FlameGraph
implementation.

3 files changed, 19 insertions, 172 deletions

diff --git a/scripts/apply-tilix-colorscheme.py b/scripts/apply-tilix-colorscheme.py
deleted file mode 100755
index 1474ab3a..00000000
--- a/scripts/apply-tilix-colorscheme.py
+++ /dev/null
@@ -1,112 +0,0 @@
-#!/usr/bin/env python3
-
-import collections
-import logging
-import shutil
-import json
-import sys
-import os
-
-import yaml
-
-log = logging.getLogger(__name__)
-
-XDG_CONFIG_HOME = os.environ.get('XDG_CONFIG_HOME', os.path.expanduser('~/.config'))
-ALACONF_FN = os.path.join(XDG_CONFIG_HOME, 'alacritty', 'alacritty.yml')
-
-Palette = collections.namedtuple('Pallete', ['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white'])
-
-
-class AttrDict(dict):
-    """
-    >>> m = AttrDict(omg=True, whoa='yes')
-    """
-
-    def __init__(self, *args, **kwargs):
-        super(AttrDict, self).__init__(*args, **kwargs)
-        self.__dict__ = self
-
-
-def slurp_yaml(fn):
-    with open(fn, 'r') as fh:
-        # JSON is a subset of YAML.
-        contents = yaml.load(fh)
-    return contents
-
-
-def fixup_hex_color(*args):
-    for arg in args:
-        val = '0x%s' % arg.strip('#')
-        yield val
-
-
-def convert(tilix_scheme):
-    j = AttrDict(tilix_scheme)
-    palette = list(fixup_hex_color(*j.palette))
-
-    pal_normal = Palette(*palette[:8])
-    pal_bold = Palette(*palette[8:])
-
-    colors = {
-        'primary': dict(zip(
-            ['background', 'foreground'],
-            fixup_hex_color(j['background-color'], j['foreground-color']),
-        )),
-        'cursor': dict(zip(
-            ['text', 'cursor'],
-            fixup_hex_color(j['cursor-background-color'], j['cursor-foreground-color']),
-        )),
-        'normal': dict(pal_normal._asdict()),
-        'bright': dict(pal_bold._asdict()),
-    }
-
-    return colors
-
-
-def patch_alaconf_colors(colors, alaconf_fn=ALACONF_FN):
-    with open(alaconf_fn, 'r') as fh:
-        ac_raw = fh.read()
-
-    # Write config file taking care to not remove delicious comments.
-    # Sure, it's janky, but less so than losing comments.
-    skipping = False
-    lines = []
-    for line in ac_raw.splitlines():
-        if skipping:
-            if line and line[0].isalpha():
-                skipping = False
-
-        elif line.startswith('colors:'):
-            skipping = True
-
-        if not skipping:
-            if not line and lines and not lines[-1]:
-                continue
-            lines.append(line)
-
-    temp_fn = '%s.tmp' % alaconf_fn
-    backup_fn = '%s.bak' % alaconf_fn
-
-    with open(temp_fn, 'w') as fh:
-        fh.write('\n'.join(lines))
-        fh.write('\n')
-        yaml.safe_dump(dict(colors=colors), fh)
-
-    shutil.copyfile(alaconf_fn, backup_fn)
-    os.rename(temp_fn, alaconf_fn)
-
-
-def main(argv=sys.argv):
-    if len(argv) != 2:
-        print("Usage: %s TILIX_SCHEME_JSON_FILE" % sys.executable, file=sys.stderr)
-        sys.exit(1)
-
-    fn = argv[1]
-
-    tilix_scheme = slurp_yaml(fn)
-    colors = convert(tilix_scheme)
-    patch_alaconf_colors(colors)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/scripts/create-flamegraph.sh b/scripts/create-flamegraph.sh
index 71af6a93..921cee8a 100755
--- a/scripts/create-flamegraph.sh
+++ b/scripts/create-flamegraph.sh
@@ -3,36 +3,29 @@
 # 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 \
-        $DIR/create-flamegraph/FlameGraph
-fi
-
-# Make sure a release build of Alacritty is available.
-if [ ! -e $DIR/../target/release/alacritty ]
-then
-    echo "Must build alacritty first: cargo build --release"
-    exit 1
-fi
-
 # Make sure perf is available.
 if [ ! -x "$(command -v perf)" ]
 then
-    echo "Cannot find perf, please make sure it's installed"
+    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
+# Install cargo-flamegraph
+installed_flamegraph=0
+if [ ! -x "$(command -v cargo-flamegraph)" ]; then
+    echo "cargo-flamegraph not installed; installing ..."
+    cargo install flamegraph
+    installed_flamegraph=1
+fi
 
-# Tell users where the file is.
-echo "Flame graph created at: file://$(pwd)/flame-$TIME.svg"
+# Create flamegraph
+cargo flamegraph --bin=alacritty -- $@
+
+# Unintall cargo-flamegraph if it has been installed with this script
+if [ $installed_flamegraph == 1 ]; then
+    read -p "Would you like to uninstall cargo-flamegraph? [Y/n] " -n 1 -r
+    echo
+    if [[ "$REPLY" =~ ^[^Nn]*$ ]]; then
+        cargo uninstall flamegraph
+    fi
+fi
diff --git a/scripts/migrate_ref_tests.rb b/scripts/migrate_ref_tests.rb
deleted file mode 100755
index 5ed02893..00000000
--- a/scripts/migrate_ref_tests.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'json'
-
-Dir.glob('./tests/ref/**/grid.json').each do |path|
-  puts "Migrating #{path}"
-
-  # Read contents
-  s = File.open(path) { |f| f.read }
-
-  # Parse
-  grid = JSON.parse(s)
-
-  # Normalize Storage serialization
-  if grid['raw'].is_a? Array
-    grid['raw'] = {
-      'inner' => grid['raw'][0],
-      'zero' => grid['raw'][1],
-      'visible_lines' => grid['raw'][2]
-    }
-  end
-
-  # Migrate Row serialization
-  grid['raw']['inner'].map! do |row|
-    if row.is_a? Hash
-      row
-    else
-      { inner: row, occ: row.length }
-    end
-  end
-
-  # Write updated grid
-  File.open(path, 'w') { |f| f << JSON.generate(grid) }
-end