Replaced update-version-string.sh with python version

Makefile

@@ -6,7 +6,7 @@ OCPINDENT = ocp-indent \
 
 .PHONY: all
 all :
-	./update-version-string.sh
+	python3 update-version-string.py
 	dune build @all
 
 .PHONY: podman-build
@@ -15,7 +15,7 @@ podman-build:
 
 .PHONY: release-static
 release-static :
-	./update-version-string.sh
+	python3 update-version-string.py
 	OCAMLPARAM='_,ccopt=-static' dune build --release bin/docfd.exe
 	mkdir -p statically-linked
 	cp -f _build/default/bin/docfd.exe statically-linked/docfd

update-version-string.py

@@ -0,0 +1,34 @@
+import re
+
+ml_path = "bin/version_string.ml"
+
+version = ""
+
+with open("CHANGELOG.md") as f:
+    for line in f:
+        if line.startswith("## "):
+            version = line.split(" ")[1].strip()
+            break
+
+print(f"Detected version for Docfd: {version}")
+
+print(f"Writing to {ml_path}")
+
+with open(ml_path, "w") as f:
+    f.write(f"let s = \"{version}\"")
+    f.write("\n")
+
+print(f"Replacing version string in dune-project")
+
+dune_project_lines = []
+dune_project_new_lines = []
+
+with open("dune-project") as f:
+    dune_project_lines = f.readlines()
+
+for line in dune_project_lines:
+    dune_project_new_lines.append(re.sub(r"\(version.*", f"(version {version})", line))
+
+with open("dune-project", "w") as f:
+    for line in dune_project_new_lines:
+        f.write(line)