v2.3.0

=====================================================================

--- New Scripts --------------------------

zsh )
  latex + latex template engine
   - latex/build-pdf
   - latex/cleanup
   - latex/create-new
   - latex/get-pdf
   - latex/open-pdf

  beta SQL script -- got tired of floating this; works, but only OK
   - db/run-sql/postgres

--- Changes ------------------------------

- Added 'math', 'basic', and 'times-new-roman' templates to latex
- Added 'readlink' to list of required coreutils
- Added __INPUT to read into a variable with prompt (zsh/utils/io)
- Added $EXECUTION_DIR to interact with the user's working directory

--- Bug Fixes ----------------------------

- subscwrypts no longer force stdout/stderr to tty

zsh/latex/common.zsh

@@ -0,0 +1,34 @@
+_DEPENDENCIES+=(
+	rg
+)
+_REQUIRED_ENV+=()
+source ${0:a:h}/../common.zsh
+#####################################################################
+
+GET_MAIN_LATEX_FILENAME() {
+	local FILENAME=$(__GET_PATH_TO_RELATIVE_ARGUMENT "$1")
+	local DIRNAME="$FILENAME"
+
+	for _ in {1..3}
+	do
+		CHECK_IS_MAIN_LATEX_FILE && return 0
+		DIRNAME="$(dirname "$FILENAME")"
+		__STATUS "checking '$DIRNAME'"
+		[[ $DIRNAME =~ ^$HOME$ ]] && break
+		FILENAME=$(
+			rg -l --max-depth 1 'documentclass' "$DIRNAME/" \
+				| grep '\.tex$' \
+				| head -n1 \
+		)
+		__STATUS "here is '$FILENAME'"
+	done
+
+	__WARNING 'unable to find documentclass; pdflatex will probably fail'
+	echo "$1"
+}
+
+CHECK_IS_MAIN_LATEX_FILE() {
+	[ ! $FILENAME ] && return 1
+	grep -q 'documentclass' $FILENAME 2>/dev/null && echo $FILENAME || return 3
+}
+