Make the script work out-of-directory.

git-portfolio

@@ -1,12 +1,42 @@
 #!/usr/bin/bash
+repos="/tmp/repos-$(cat /dev/urandom | base64 | tr -d '=+/' | head -c 8)"
+mkdir -p "$repos"
+function safely_remove_tmp_repos() {
+	if [ "$repos" ] && [ -d "$repos" ]; then
+		if [ "$(find -name .git -type d | wc -l)" -eq 0 ]; then
+			echo "Warning: No git repositories found in '$repos'. Not deleting to prevent data loss."
+			rmdir "$repos" 2>/dev/null
+			return
+		fi
+		rm -rf "$repos"
+	fi
+}
 function cleanup() {
-	rm -rf repos tmp-portfolio
+	safely_remove_tmp_repos
+	rm -rf tmp-portfolio
 }
 directory="$1"
+script_dir="$(dirname "$0")"
 if [ ! "$directory" ]; then
 	echo "Usage: $0 <directory>"
 	exit 1
 fi
+if ! command -v pass >/dev/null 2>&1; then
+	echo "Error: 'pass' command not found. Please install 'pass' and set up your Gitea API token."
+	exit 1
+fi
+if ! command -v jq >/dev/null 2>&1; then
+	echo "Error: 'jq' command not found. Please install 'jq' to process JSON data."
+	exit 1
+fi
+if ! command -v Rscript >/dev/null 2>&1; then
+	echo "Error: 'Rscript' command not found. Please install R to generate language distribution plots."
+	exit 1
+fi
+if ! command -v quarto >/dev/null 2>&1; then
+	echo "Error: 'quarto' command not found. Please install Quarto to render project pages."
+	exit 1
+fi
 trap cleanup EXIT
 GIT_URL='https://git.seanhealy.ie'
 GIT_USER=sean
@@ -44,7 +74,7 @@ while read project; do
 		awk -v total="$total_bytes" '{print $2 / total"\t"$1}' |
 		sort -n -r
 	)
-	git clone --depth 1 -b main --single-branch "$GIT_URL/$GIT_USER/$name" "repos/$name" 2>/dev/null >/dev/null
+	git clone --depth 1 -b main --single-branch "$GIT_URL/$GIT_USER/$name" "$repos/$name" 2>/dev/null >/dev/null
 	echo $'Percentage\tLanguages' > /tmp/languages.tsv
 	echo "$languages_percentages" >> /tmp/languages.tsv
 	(cat > /tmp/plot.R) <<EOF
@@ -61,7 +91,7 @@ while read project; do
 		theme_void() +
 		scale_fill_brewer(palette="Set3") +
 		theme(legend.text=element_text(size=16), legend.title=element_text(size=18))
-	ggsave("repos/$name/$name-languages.png", plot, width=5, height=5)
+	ggsave("$repos/$name/$name-languages.png", plot, width=5, height=5)
 EOF
 	Rscript /tmp/plot.R
 	language_list="$(
@@ -73,9 +103,8 @@ EOF
 	updated_at=$(date -d "$updated_at" +"%B %d, %Y")
 	avatar_url=$(jq -r ".[$i]" <<< "$project"); i=$((i + 1))
 	licenses=$(jq -r '.['$i'] | join(", ")' <<< "$project"); i=$((i + 1))
-	mkdir -p repos
-	cp project-style.css "repos/$name/"
-	(cd "repos/$name" && (cat > "$name.qmd") <<EOF
+	cp "$script_dir/project-style.css" "$repos/$name/"
+	(cd "$repos/$name" && (cat > "$name.qmd") <<EOF
 ---
 execute:
   enabled: false
@@ -189,5 +218,5 @@ else
 	mkdir -p "$directory"
 fi
 rsync -a "tmp-portfolio/" "$directory/"
-rm -rf repos
+safely_remove_tmp_repos
 rm -r tmp-portfolio