Relativize file names

1 files changed, 17 insertions, 8 deletions

@@ -6,7 +6,8 @@
         (chicken process)
         (chicken process-context)
         (chicken string)
-        (srfi 1))
+        (srfi 1)
+        utf8-srfi-13)
 
 (define egg (make-parameter #f))
 (define build-dir (make-parameter "build"))
@@ -105,9 +106,6 @@
          ((list? (cdr kv))
           (apply alist-walk (cdr kv) (cdr keys)))))))
 
-(define (string-join ss)
-  (string-intersperse ss " "))
-
 (define (find-executable name)
   (let loop ((path (string-split (get-environment-variable "PATH") ":")))
     (cond
@@ -122,9 +120,9 @@
 (define (rule c)
   (let ((deps (alist-ref c (dependency-graph))))
     (sprintf "~a: ~a $(BUILD)\n\t~a\n\t~a"
-             (output-of c)
-             (string-join (cons (source-of (car deps))
-                                (map output-of (cdr deps))))
+             (relativize (output-of c))
+             (string-join (cons (relativize (source-of (car deps)))
+                                (map (o relativize output-of) (cdr deps))))
              (string-append "$(CSC) $(CSC_OPTIONS)"
                             (if (eq? (car (find-component c)) 'extension)
                                 " $(CSC_LIB_OPTIONS)" "")
@@ -134,6 +132,16 @@
                             "echo mv " (->string c) ".import.scm $(BUILD)/;"
                             " fi"))))
 
+(define (relativize pn)
+  (let ((ed (string-append
+             (if (pair? (egg-directory))
+                 (car (egg-directory))
+                 (egg-directory))
+             "/")))
+    (if (string-prefix? ed pn)
+        (substring pn (string-length ed))
+        pn)))
+
 (define (emit-makefile egg-file)
   (parameterize ((egg (read-egg egg-file)))
     (print "# Automatically generated by scramble") (newline)
@@ -148,7 +156,8 @@
     (print "TEST_ENV = env BUILD=$(BUILD) TESTS=$(TESTS)")
     (newline)
     (print ".PHONY: all test clean install uninstall")
-    (print "all: " (string-join (map (o output-of car) (dependency-graph))))
+    (print "all: " (string-join (map (o relativize output-of car)
+                                     (dependency-graph))))
     (print "test: $(BUILD)"
            "\n\t" "cd $(BUILD) && "
            "$(TEST_ENV) $(CSI) -setup-mode -s $(TESTS)/run.scm $(NAME)")