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raco pkg install: drop redundant "COPYING.txt" and "COPYING_LESSER.txt"

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When adding a package installation-wide, drop redundant "COPYING.txt"
and "COPYING_LESSER.txt" files (i.e., ones that are the same as the
ones the "share" directory of a Racket installation).

This rule is ad hoc, but it avoids almost 150 copies of the file in
the main distribution.
This commit is contained in:
Matthew Flatt 2013-09-06 09:52:08 -06:00
parent e2ee051adc
commit 7969eea3a2
1 changed files with 18 additions and 0 deletions
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18
racket/collects/pkg/lib.rkt
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@ -819,6 +819,21 @@
given-checksum
checksum)))
(define (drop-redundant-files pkg-dir)
;; Ad hoc space-saving rule: for an installation-wide package, remove
;; any redundant "COPYING.txt" or "COPYING_LESSER.txt" files.
(when (and (eq? 'installation (current-pkg-scope))
(find-share-dir))
(for ([i (in-list '("COPYING.txt" "COPYING_LESSER.txt"))])
(define pkg-file (build-path pkg-dir i))
(define share-file (build-path (find-share-dir) i))
(when (and (file-exists? pkg-file)
(file-exists? share-file)
(equal? (file->bytes pkg-file)
(file->bytes share-file)))
;; This file would be redundant, so drop it
(delete-file pkg-file)))))
;; Downloads a package (if needed) and unpacks it (if needed) into a
;; temporary directory.
(define (stage-package/info pkg
@ -1128,6 +1143,9 @@
(make-parent-directory* pkg-dir)
(copy-directory/files pkg pkg-dir #:keep-modify-seconds? #t)))
pkg-dir)))
(when (or (not in-place?)
in-place-clean?)
(drop-redundant-files pkg-dir))
(install-info pkg-name
`(dir ,(simple-form-path* pkg))
pkg-dir