From ea0e9c7902663251b46e444331e7cdbac8919b4c Mon Sep 17 00:00:00 2001
From: Ryan Chan <rycwo@posteo.net>
Date: Tue, 7 Dec 2021 00:04:44 +0000
Subject: [PATCH] Various dotfile updates and new scripts

Changes include:
- Remove Ruby variables from .bash_profile
- Simplify exclusion paths from backup-host script
- Add screen capture script
- Add barrierc helper script
- Remove xdg config files
---
 bash/.bash_profile   |  1 -
 bin/backup-host      | 13 +-------
 bin/connect-barrier  |  3 ++
 bin/screencap        | 77 ++++++++++++++++++++++++++++++++++++++++++++
 xdg/user-dirs.dirs   | 15 ---------
 xdg/user-dirs.locale |  1 -
 6 files changed, 81 insertions(+), 29 deletions(-)
 create mode 100755 bin/connect-barrier
 create mode 100755 bin/screencap
 delete mode 100644 xdg/user-dirs.dirs
 delete mode 100644 xdg/user-dirs.locale

diff --git a/bash/.bash_profile b/bash/.bash_profile
index 99c7dc6..ff51adf 100644
--- a/bash/.bash_profile
+++ b/bash/.bash_profile
@@ -10,5 +10,4 @@ export npm_config_prefix="$HOME""/.node_modules"
 PATH="$PATH"":""$GOPATH""/bin"                         # Go executables
 PATH="$PATH"":""$HOME""/.local/bin"                    # Python scripts
 PATH="$PATH"":""$HOME""/.node_modules/bin"             # Node scripts
-PATH="$PATH"":""$(ruby -e "puts Gem.user_dir")""/bin"  # Ruby gems
 PATH="$PATH"":""$HOME""/dev/workspace/bin"             # Personal executables
diff --git a/bin/backup-host b/bin/backup-host
index 08a7308..2d823f0 100755
--- a/bin/backup-host
+++ b/bin/backup-host
@@ -26,21 +26,10 @@ readonly paths=(
 )
 readonly exclude_paths=(
     "/home/rycwo/.borg-passphrase"
-    "/home/rycwo/.bundle"
-    "/home/rycwo/.cache"
-    "/home/rycwo/.cmake"
-    "/home/rycwo/.gem"
-    "/home/rycwo/.mozilla"
-    "/home/rycwo/.node_modules"
-    "/home/rycwo/.npm"
-    "/home/rycwo/.renderdoc"
-    "/home/rycwo/.rustup"
     "/home/rycwo/.secret"
     "/home/rycwo/.vagrant.d"
     "/home/rycwo/.virtualbox"
-    "/home/rycwo/go"
-    "/home/rycwo/dev/package"
-    "/home/rycwo/dev/repo/third-party")
+	"/home/rycwo/go")
 exclude_file="$(mktemp)"
 
 exit_() {
diff --git a/bin/connect-barrier b/bin/connect-barrier
new file mode 100755
index 0000000..4709f55
--- /dev/null
+++ b/bin/connect-barrier
@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+barrierc --no-tray "$@" &
+setxkbmap -device "$(xinput list --id-only "Virtual core XTEST keyboard")" "gb"
diff --git a/bin/screencap b/bin/screencap
new file mode 100755
index 0000000..cdbe928
--- /dev/null
+++ b/bin/screencap
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+from collections import OrderedDict
+from contextlib import contextmanager
+from datetime import datetime
+from pathlib import Path
+from tempfile import NamedTemporaryFile
+import argparse
+import os
+import subprocess
+import sys
+
+
+@contextmanager
+def mktemp(**kwargs):
+    tmpfile = NamedTemporaryFile(delete=False, **kwargs)
+    # Immediately close the returned file object so we can write to it elsewhere
+    tmpfile.close()
+    try:
+        yield tmpfile.name
+    finally:
+        # It is the caller's responsibility to close the file after using it
+        os.unlink(tmpfile.name)
+
+
+def output_filename():
+    # Generate output filename
+    timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+    return Path(f"screencap_{timestamp}.mkv")
+
+
+def generate_args(flags):
+    for k, v in flags.items():
+        yield k
+        yield v
+
+
+def main():
+    parser = argparse.ArgumentParser("Record screen contents")
+    parser.add_argument("-o", "--output", type=Path, default=output_filename())
+    parser.add_argument("--resolution", type=str, default="1920x1080")
+    parser.add_argument("--framerate", type=float, default=60.0)
+    parser.add_argument("--monitor", type=str, default=":0.0")
+    parser.add_argument("--quality", type=int, default=18)
+    parser.add_argument("--pixel-format", type=str, default="yuv420p")
+    args = parser.parse_args()
+
+    with mktemp(suffix=".mkv") as tmpfilename:
+        flags = OrderedDict([])
+        flags["-video_size"] = args.resolution
+        flags["-framerate"] = str(args.framerate)
+        flags["-f"] = "x11grab"
+        flags["-i"] = args.monitor
+        flags["-c:v"] = "libx264rgb"
+        flags["-crf"] = "0"  # Lossless quality
+        flags["-preset"] = "ultrafast"  # Low CPU usage
+
+        process_args = list(generate_args(flags))
+        process_args.append(tmpfilename)
+        # FIXME: This presents a security threat as the file can be created
+        # between removal and ffmpeg invocation.
+        os.unlink(tmpfilename)
+        subprocess.run(["ffmpeg"] + process_args)
+
+        flags = OrderedDict([])
+        flags["-i"] = tmpfilename
+        flags["-c:v"] = "libx264"
+        flags["-crf"] = str(args.quality)
+        flags["-pix_fmt"] = args.pixel_format
+        flags["-preset"] = "veryslow"
+
+        process_args = list(generate_args(flags))
+        process_args.append(str(args.output))
+        subprocess.run(["ffmpeg"] + process_args)
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/xdg/user-dirs.dirs b/xdg/user-dirs.dirs
deleted file mode 100644
index 0129169..0000000
--- a/xdg/user-dirs.dirs
+++ /dev/null
@@ -1,15 +0,0 @@
-# This file is written by xdg-user-dirs-update
-# If you want to change or add directories, just edit the line you're
-# interested in. All local changes will be retained on the next run.
-# Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
-# homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
-# absolute path. No other format is supported.
-# 
-XDG_DESKTOP_DIR="$HOME/desktop"
-XDG_DOWNLOAD_DIR="$HOME/download"
-XDG_TEMPLATES_DIR="$HOME/template"
-XDG_PUBLICSHARE_DIR="$HOME/public"
-XDG_DOCUMENTS_DIR="$HOME/doc"
-XDG_MUSIC_DIR="$HOME/media/audio"
-XDG_PICTURES_DIR="$HOME/media/image"
-XDG_VIDEOS_DIR="$HOME/media/video"
diff --git a/xdg/user-dirs.locale b/xdg/user-dirs.locale
deleted file mode 100644
index 7741b83..0000000
--- a/xdg/user-dirs.locale
+++ /dev/null
@@ -1 +0,0 @@
-en_US
-- 
2.45.2