mkvmerge-add-subtitles:fixed a bug in which one pattern returning null would stop the entire function.

Something happened.

functions/get-ssh-agent

@@ -0,0 +1,37 @@
+## get-ssh-agent
+# A pretty simple function intended to convince multiple shell sessions to connect to the same
+# ssh-agent instance.
+
+AGENT_FILE_NAME='ssh-agent.env'
+# XDG runtime path by default is /run/user/$UID
+default_runtime_path="/run/user/$UID"
+
+if [[ "$XDG_RUNTIME_DIR" ]]; then
+	ssh_agent_env_file="${XDG_RUNTIME_DIR}/${AGENT_FILE_NAME}"
+else
+	ssh_agent_env_file="${default_runtime_path}/${AGENT_FILE_NAME}"
+fi
+
+function _start_new_ssh_agent () {
+	ssh_agent_file=$1
+	killall ssh-agent
+	# start a new ssh-agent and write its output to the env file.
+	ssh-agent | grep -v echo >& "$ssh_agent_file"
+	source "$ssh_agent_file"
+	echo "New ssh-agent started."
+	ssh-add
+}
+
+if [[ -e "$ssh_agent_env_file" ]]; then
+	# determine if the pid in the env file is still alive
+	if [[ -n "$(source "$ssh_agent_env_file"; ps -p "$SSH_AGENT_PID")" ]]; then
+		source "$ssh_agent_env_file"
+		echo "Existing ssh-agent environment configured with pid ${SSH_AGENT_PID}."
+	else
+		echo "Existing ssh-agent appears to be dead."
+		_start_new_ssh_agent "$ssh_agent_env_file"
+	fi
+else
+	echo "No existing ssh-agent found."
+	_start_new_ssh_agent "$ssh_agent_env_file"
+fi

functions/journal

@@ -0,0 +1,6 @@
+## journal
+# A simple function to automatically select the correct journal file.
+
+journal_file="$(xdg-user-dir DOCUMENTS)/journal/$(date +%F).md"
+
+"$EDITOR" "$journal_file"

functions/mkvmerge-add-subtitles

@@ -6,6 +6,11 @@ DEFAULT_LANGUAGE_CODE="eng"
 # TODO: This needs to be used in the glob, but I don't know how.
 VIDEO_EXTENSIONS="mkv,mp4,avi"
 
+typeset -A LANGUAGE_NAMES
+LANGUAGE_NAMES=( \
+	'english' 'en' \
+	)
+
 _mkvmerge_add_subtitles_mkvmerge () {
 	original_file="$1"
 	results_directory="$2"
@@ -26,21 +31,61 @@ _mkvmerge_add_subtitles_mkvmerge () {
 	# TODO: Support the other patterns listed in the above comment.
 	video_basename="$1"
 
+	# Include subtitles without language codes, assuming $DEFAULT_LANGUAGE_CODE is correct.
+	# For example: [basename].srt
+	uncoded_subtitle_name="${original_file:r}.srt"
+	if [[ -f "$uncoded_subtitle_name" ]]; then
+		subtitle_options_array+=("--language" "0:${DEFAULT_LANGUAGE_CODE}" "$uncoded_subtitle_name")
+		echo "Found uncoded subtitle file ${uncoded_subtitle_name}, assuming \
+			${DEFAULT_LANGUAGE_CODE}."
+	fi
+
 	# Include subtitles with language codes in their filenames.
 	# For example [basename].[language code].srt
 	coded_subtitle_files=(${original_file:r}.*.srt(N))
 	if [[ ! -z $coded_subtitle_files ]]; then
-		for fname in "$coded_subtitle_files"; do
+		for fname in $coded_subtitle_files; do
 			language_code="${${fname:r}:e}"
 			subtitle_options_array+=("--language" "0:${language_code}" "$fname")
+			echo "Found coded subtitle file ${fname} for language ${language_code}."
 		done
 	fi
 
-	# Include subtitles without language codes, assuming $DEFAULT_LANGUAGE_CODE is correct.
-	# For example: [basename].srt
-	uncoded_subtitle_name="${original_file:r}.srt"
-	if [[ -f "$uncoded_subtitle_name" ]]; then
-		subtitle_options_array+=("--language" "0:${DEFAULT_LANGUAGE_CODE}" "$uncoded_subtitle_name")
+	# Include subtitles in the Subs directory
+	named_subtitle_files=(${original_file:h}/Subs/*.srt(N))
+	if [[ ! -z $named_subtitle_files ]]; then
+		existing_language_codes=()
+		for fname in $named_subtitle_files; do
+			file_basename=${fname:t}
+
+			# determine language code from filenames like 2_English.srt
+			# This character soup does three things
+			#	* #[0-9]*_ removes the preceding track number, such as 2_ or 13_
+			#	* :r removes the file extension
+			#	* :l makes it all lowercase
+			language_name="${${file_basename#[0-9]*_}:r:l}"
+			echo "Found subtitle file ${fname}."
+
+			if [[ $LANGUAGE_NAMES[$language_name] ]]; then
+				language_code=$LANGUAGE_NAMES[$language_name]
+				echo "Checking if subtitle file ${fname} is usable."
+
+				# TODO: This is absolutely an ugly way to do this, but this is what works.
+				if $(echo ${existing_language_codes} > grep ${language_code}); then
+					subtitle_options_array+=("--language" "0:${language_code}" "$fname")
+					existing_language_codes+=$language_code
+					echo "Found ${language_code} subtitles at ${fname}."
+
+				else
+					echo "Duplicate subtitle files for ${language_code}."
+					exit 1
+				fi
+
+			else
+				echo "Unknown language name ${language_name}."
+				exit 1
+			fi
+		done
 	fi
 
 	# Finally, actually mux all the subtitles in if there are any.
@@ -48,7 +93,7 @@ _mkvmerge_add_subtitles_mkvmerge () {
 		echo "No subtitles found for file ${original_file}"
 	else
 		echo "Remuxing ${original_file}..."
-		mkvmerge --quiet -o "$partial_file" "$original_file" ${(@)subtitle_options_array} \
+		mkvmerge --quiet -o "$partial_file" "$original_file" ${^subtitle_options_array} \
 			|| rm "$partial_file"
 		echo "Done!"