viable first brush at breaking code into modules

Makefile

@@ -1,15 +1,28 @@
 DEPS = utf8 lowdown sxml-transforms clojurian symbol-utils scss srfi-1 srfi-13 srfi-14 ersatz
 SRC = main.scm
+LOCAL_MODULES = utils
 DIR_INSTALL ?= /usr/local/bin
 DIR_BUILD = .
 BIN = repo2html
 
-all: compile
+default: compile
 
-compile:
-	mkdir -p $(DIR_BUILD)/
-	csc -O3 -static ./$(SRC) -o $(DIR_BUILD)/$(BIN)
+foo: foo.scm utils.import.scm utils.o
+	csc -O5 -I . -static -uses utils $< -o $@
+
+# Note: things break if you use -O5 here.
+%.import.scm: %.scm
+	csc -O4 -static -c -unit $* -j $* $<
+
+$(DIR_BUILD)/$(BIN): $(SRC) $(DIR_BUILD) $(addsuffix .import.scm,$(LOCAL_MODULES))
+	csc -I . -static -uses utils $< -o $@ -strip
+
+$(DIR_BUILD):
+	mkdir -p $@/
+
+compile: $(DIR_BUILD)/$(BIN)
 	rm ./$(DIR_BUILD)/$(BIN).link
+	@ls -sh $(DIR_BUILD)/$(BIN)
 	@echo "Finished compiling a static binary in $(DIR_BUILD)/$(BIN)!"
 
 dependencies:
@@ -22,7 +35,7 @@ uninstall:
 	rm $(DIR_INSTALL)/$(PROG)
 
 clean:
-	rm $(DIR_BUILD)/$(BIN)
+	rm -f $(DIR_BUILD)/$(BIN) foo repo2html *.link *.o *.import.scm
 
 compile-on-debian-11:
 	# builds repo2html compatible with systems running glibc-2.31 and higher.

foo.scm

@@ -0,0 +1,5 @@
+#!/usr/bin/csi -s
+
+(import (utils))
+
+(print (substring* "foo" 1 2))

main.scm

@@ -19,88 +19,9 @@
   sxml-transforms
   symbol-utils ;; (unspecified-value)
   utf8
+  utils
   )
 
-;; small utilities ---------------------------------
-
-
-;; (bail [message [exit-status]])
-;; end the program immediately.
-;; if a message is provided, print it to the screen.
-;; exit-status defaults to 1.
-(define (bail #!optional msg (status 1))
-  (when msg (print msg))
-  (exit status))
-
-;; clojureish "debugging by print statement" tool since i still haven't reached
-;; lisp enlightenment
-(define ((inspect #!optional label #!rest args) s)
-  (display (list label ":" args " => " s) (current-error-port))
-  (newline (current-error-port))
-  s)
-
-;; decompose a path s into its constituent parts. returns values:
-;;
-;; root: "/" if it's an absolute path, "" if relative directory-elements: a list
-;; of each directory from root, () if none basename: the filename with extension
-;; removed like "readme" or ".bashrc" extension: the file extension with the
-;; dot, like ".txt" or "" if none relative-root: the relative path from the
-;; given path to the root
-;;  e.g foo/bar/baz.html -> ../../
-;;
-;; this is intended to provide default values that make for easier reassembly
-;; into filenames.
-;;
-;; typical use:
-;; (->> source-file
-;;  (pathparts)
-;;  (define-values (root elements basename extension relative-root)))
-;;
-(define (pathparts s)
-  (define-values (dirname basename extension)
-    (decompose-pathname s))
-  (define-values (origin root directory-elements)
-    (decompose-directory (or dirname "")))
-  ;; discarding origin because idgaf about windows
-  (values (or root "")
-          (or directory-elements '())
-          basename
-          (if extension (string-append "." extension) "")
-          (->>
-           (or directory-elements '())
-           (map (constantly "../"))
-           (apply string-append))))
-
-;; like (substring) but doesn't break if start and end are too big/small
-(define (substring* s start end)
-  (substring s (max start 0) (min end (string-length s))))
-
-;; merge alists a and b. values in b "win"
-(define (alist-merge a b)
-  (lset-union (lambda (x y) (eq? (car x) (car y))) a b))
-
-;; like alist-ref but works on nested alists by specifying a path (list of keys)
-(define (alist-ref-in keys alist #!optional (test eqv?))
-  (if (null? (cdr keys))
-      (alist-ref (car keys) alist test)
-      (alist-ref-in (cdr keys) (alist-ref (car keys) alist test) test)))
-
-;; like alist-update, but works on nested alists by specifying a path (list of
-;; keys)
-(define (alist-update-in keys value alist #!optional (test eqv?))
-  (cond
-   ((not alist) #f)
-   ((null? (cdr keys))
-    (alist-update (car keys) value alist test))
-   (else
-    (alist-update (car keys)
-                  (alist-update-in (cdr keys) value (alist-ref (car keys) alist test) test)
-                  alist test))))
-
-(define (unless-equals s1 s2)
-  ;; if s1 == s2, then s1, otherwise #f
-  (and (equal? s1 s2) s1))
-
 ;; auto-apply ids to headings ---------------------------------
 (define (slugify inner)
   (->

utils.scm

@@ -0,0 +1,102 @@
+
+;; small utilities ---------------------------------
+
+(module utils *
+  (import
+    scheme
+    (chicken base)
+    (chicken file)
+    (chicken format)
+    (chicken io)
+    (chicken pathname)
+    (chicken port)
+    (chicken process)
+    (chicken process-context)
+    (chicken string)
+    (clojurian syntax)
+    ersatz
+    lowdown
+    scss
+    srfi-1  ;; list utils
+    srfi-13 ;; string utils
+    srfi-14 ;; charsets
+    sxml-transforms
+    symbol-utils ;; (unspecified-value)
+    utf8)
+;; (bail [message [exit-status]])
+;; end the program immediately.
+;; if a message is provided, print it to the screen.
+;; exit-status defaults to 1.
+(define (bail #!optional msg (status 1))
+  (when msg (print msg))
+  (exit status))
+
+;; clojureish "debugging by print statement" tool since i still haven't reached
+;; lisp enlightenment
+(define ((inspect #!optional label #!rest args) s)
+  (display (list label ":" args " => " s) (current-error-port))
+  (newline (current-error-port))
+  s)
+
+;; decompose a path s into its constituent parts. returns values:
+;;
+;; root: "/" if it's an absolute path, "" if relative directory-elements: a list
+;; of each directory from root, () if none basename: the filename with extension
+;; removed like "readme" or ".bashrc" extension: the file extension with the
+;; dot, like ".txt" or "" if none relative-root: the relative path from the
+;; given path to the root
+;;  e.g foo/bar/baz.html -> ../../
+;;
+;; this is intended to provide default values that make for easier reassembly
+;; into filenames.
+;;
+;; typical use:
+;; (->> source-file
+;;  (pathparts)
+;;  (define-values (root elements basename extension relative-root)))
+;;
+(define (pathparts s)
+  (define-values (dirname basename extension)
+    (decompose-pathname s))
+  (define-values (origin root directory-elements)
+    (decompose-directory (or dirname "")))
+  ;; discarding origin because idgaf about windows
+  (values (or root "")
+          (or directory-elements '())
+          basename
+          (if extension (string-append "." extension) "")
+          (->>
+           (or directory-elements '())
+           (map (constantly "../"))
+           (apply string-append))))
+
+;; like (substring) but doesn't break if start and end are too big/small
+(define (substring* s start end)
+  (substring s (max start 0) (min end (string-length s))))
+
+;; merge alists a and b. values in b "win"
+(define (alist-merge a b)
+  (lset-union (lambda (x y) (eq? (car x) (car y))) a b))
+
+;; like alist-ref but works on nested alists by specifying a path (list of keys)
+(define (alist-ref-in keys alist #!optional (test eqv?))
+  (if (null? (cdr keys))
+      (alist-ref (car keys) alist test)
+      (alist-ref-in (cdr keys) (alist-ref (car keys) alist test) test)))
+
+;; like alist-update, but works on nested alists by specifying a path (list of
+;; keys)
+(define (alist-update-in keys value alist #!optional (test eqv?))
+  (cond
+   ((not alist) #f)
+   ((null? (cdr keys))
+    (alist-update (car keys) value alist test))
+   (else
+    (alist-update (car keys)
+                  (alist-update-in (cdr keys) value (alist-ref (car keys) alist test) test)
+                  alist test))))
+
+(define (unless-equals s1 s2)
+  ;; if s1 == s2, then s1, otherwise #f
+  (and (equal? s1 s2) s1))
+)