Refactor zip generation script and update Makefile.

Author: yegor256

Makefile

@@ -1,36 +1,18 @@
 # SPDX-FileCopyrightText: Copyright (c) 2020-2025 Yegor Bugayenko
 # SPDX-License-Identifier: MIT
 
-.SHELLFLAGS=-e -x -o pipefail -c
+.SHELLFLAGS=-e -o pipefail -c
 .ONESHELL:
+SHELL=bash
+.PHONY: zip all test clean
 
-TLROOT=$$(kpsewhich -var-value TEXMFDIST)
-PACKAGES=ffcode to-be-determined href-ul eolang
-REPO=objectionary/reducing-programs-to-objects
+all: paper.pdf zip
+
+paper.pdf: paper.tex
+	latexmk -pdf -latexoption=-interaction=errorstopmode -latexoption=-halt-on-error paper
 
 zip: *.tex
-	rm -rf package
-	mkdir package
-	cd package
-	cp ../paper.tex .
-	mkdir -p bibliography
-	cp ../bibliography/main.bib ./bibliography/main.bib
-	cp ../goto-pic.pdf .
-	for p in $(PACKAGES); do
-		cp "$(TLROOT)/tex/latex/$${p}/$${p}.sty" .
-	done
-	version=$$(curl --silent -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/$(REPO)/releases/latest" | jq -r '.tag_name')
-	echo "Version is: $${version}"
-	gsed -i "s|0\.0\.0|$${version}|" paper.tex
-	gsed -i "s|REPOSITORY|$(REPO)|" paper.tex
-	pdflatex -shell-escape -halt-on-error paper.tex
-	biber paper
-	pdflatex -halt-on-error paper.tex
-	pdflatex -halt-on-error paper.tex
-	rm -rf ./*.aux ./*.bcf ./*.blg ./*.fdb_latexmk ./*.fls ./*.log ./*.run.xml ./*.out ./*.exc
-	zip -x paper.pdf -r "paper-$${version}.zip" *
-	mv "paper-$${version}.zip" ..
-	cd ..
+	./zip-it.sh
 
 clean:
 	git clean -dfX

zip-it.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# SPDX-FileCopyrightText: Copyright (c) 2020-2025 Yegor Bugayenko
+# SPDX-License-Identifier: MIT
+
+set -ex -o pipefail
+
+REPO=objectionary/on-the-origin-of-objects
+
+TLROOT=$(kpsewhich -var-value TEXMFDIST)
+
+rm -rf package
+mkdir package
+cd package
+cp ../paper.tex .
+cp ../goto-pic.pdf .
+mkdir bibliography
+cp ../bibliography/main.bib bibliography/main.bib
+for p in ffcode to-be-determined href-ul eolang iexec; do
+    cp "${TLROOT}/tex/latex/${p}/${p}.sty" .
+done
+
+version=$(curl --silent -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/${REPO}/releases/latest" | jq -r '.tag_name')
+echo "Version is: ${version}"
+gsed -i "s|0\.0\.0|${version}|g" paper.tex
+gsed -i "s|REPOSITORY|${REPO}|g" paper.tex
+pdflatex -interaction=errorstopmode -halt-on-error -shell-escape paper.tex
+bibtex paper
+pdflatex -interaction=errorstopmode -halt-on-error paper.tex > /dev/null
+pdflatex -interaction=errorstopmode -halt-on-error paper.tex > /dev/null
+rm -rf ./*.aux ./*.bcf ./*.blg ./*.fdb_latexmk ./*.fls ./*.log ./*.run.xml ./*.out ./*.exc
+zip -x paper.pdf -r "paper-${version}.zip" ./*
+mv "paper-${version}.zip" ..
+cd ..