dist/update-copyright.scm: Update files in place.

Start with a clean working tree and you can `git reset --hard HEAD'
when the translation goes badly.

diff --git a/dist/update-copyright.scm b/dist/update-copyright.scm
index 9ae2c59c5b7c8f624e0ab625fd23e7cd6202810a..9c32aa8d1e4b91500582bcd9f072c061e8336396 100644 (file)
--- a/dist/update-copyright.scm
+++ b/dist/update-copyright.scm
@@ -29,31 +29,27 @@ USA.
 (declare (usual-integrations))
 
 (define (translate-standard-dirs root-dir translation)
-  (let* ((root-dir (merge-pathnames (pathname-as-directory root-dir)))
-        (target (merge-pathnames "translated-files" root-dir))
-        (target-dir (pathname-as-directory target)))
-    (make-directory target)
+  (let ((root-dir (merge-pathnames (pathname-as-directory root-dir)))
+       (suffix (string-append "-"
+                              (string-pad-left (number->string
+                                                (random-integer 10000))
+                                               4 #\0))))
     (for-each (lambda (dir)
                (translate-directory (merge-pathnames dir root-dir)
-                                    (merge-pathnames dir target-dir)
+                                    suffix
                                     root-dir
                                     translation))
              '("dist" "doc" "etc" "html" "src" "tests"))))
 \f
-(define (translate-directory source target root-dir translation)
-  (let ((source (pathname-as-directory source))
-       (target (pathname-as-directory target)))
+(define (translate-directory source suffix root-dir translation)
+  (let ((source (pathname-as-directory source)))
     (let loop ((pathnames (list source)))
       (if (pair? pathnames)
-         (let* ((input (car pathnames))
-                (output
-                 (merge-pathnames (enough-pathname input source) target)))
+         (let ((input (car pathnames)))
            (if (file-directory? input)
                (loop (if (match-path input root-dir dirs-to-skip)
                          (cdr pathnames)
                          (begin
-                           (if (not (file-directory? output))
-                               (make-directory output))
                            (append (directory-read
                                     (pathname-as-directory input))
                                    (cdr pathnames)))))
@@ -62,7 +58,7 @@ USA.
                           (not (match-path input root-dir files-to-skip)))
                      (let ((results (translation (read-file-leader input))))
                        (if (pair? results)
-                           (translate-file-1 input output results)
+                           (translate-file input suffix results)
                            (if (not
                                 (match-path input root-dir
                                             suppress-warnings-for))
@@ -115,6 +111,13 @@ USA.
       (let ((leader (make-string 4096)))
        (string-head leader (read-substring! leader 0 4096 port))))))
 
+(define (translate-file input suffix results)
+  (let ((output (pathname-new-name input
+                                  (string-append (pathname-name input)
+                                                 suffix))))
+    (translate-file-1 input output results)
+    (rename-file output input)))
+
 (define (translate-file-1 input output results)
   (call-with-input-file input
     (lambda (input)