Make base URL configurable

2 files changed, 4 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 8356ec6..e6b1d33 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,15 @@
 HUGO ?= hugo
 PORT ?= 1314
+BASE_URL ?= http://localhost:1314/
 
 .PHONY: build serve clean
 
 build: clean
-	$(HUGO)
+	$(HUGO) --baseURL "$(BASE_URL)"
 	./scripts/publish-raw
 
 serve: build
-	$(HUGO) server --disableFastRender --disableLiveReload --port $(PORT)
+	$(HUGO) server --disableFastRender --disableLiveReload --port $(PORT) --baseURL "http://localhost:$(PORT)/"
 
 clean:
 	$(RM) -r public resources .hugo_build.lock
diff --git a/README.md b/README.md
index 8b2d67f..638ea52 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ make serve
 make clean
 ```
 
-`make build` recreates `public/`, runs Hugo, and then copies every public Markdown source and its page-bundle attachments without changing their bytes. `make serve` prepares that same output before starting Hugo at `http://localhost:1314/`; override the port with `make serve PORT=8080`. Hugo rebuilds HTML while serving; restart the command after editing Markdown when the raw `.md` snapshot also needs to change.
+`make build` recreates `public/`, runs Hugo, and then copies every public Markdown source and its page-bundle attachments without changing their bytes. The default `BASE_URL` is `http://localhost:1314/`; pass `BASE_URL=https://example.org/` to generate absolute production URLs. `make serve` prepares that same output before starting Hugo at `http://localhost:1314/`; override the port with `make serve PORT=8080`. Hugo rebuilds HTML while serving; restart the command after editing Markdown when the raw `.md` snapshot also needs to change.
 
 The source repository URL, per-file Git base URL, and public email are configured once in `hugo.toml`.