131 lines
4.4 KiB
Diff
131 lines
4.4 KiB
Diff
From 752dff853186dc334c519a86fa92f087795fea02 Mon Sep 17 00:00:00 2001
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From: Moritz Heidkamp <moritz.heidkamp@bevuta.com>
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Date: Wed, 1 Oct 2014 22:41:30 +0200
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Subject: [PATCH] Introduce CHICKEN_REPOSITORY_EXTRA
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This environment variable works like CHICKEN_REPOSITORY but supports
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multiple paths separated by `:'. Those paths are searched after
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CHICKEN_REPOSITORY when loading extensions via `require-library' and
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friends. It can be accessed and changed at runtime via the new procedure
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`repository-extra-paths' which is analog to `repository-path'.
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---
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chicken-install.scm | 11 +++++++----
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chicken.import.scm | 1 +
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eval.scm | 37 +++++++++++++++++++++++++++++++------
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3 files changed, 39 insertions(+), 10 deletions(-)
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diff --git a/chicken-install.scm b/chicken-install.scm
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index 2ef6ef4..b5c6bf8 100644
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--- a/chicken-install.scm
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+++ b/chicken-install.scm
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@@ -109,10 +109,10 @@
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(define *show-foreign-depends* #f)
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(define *hacks* '())
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- (define (repo-path)
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+ (define (repo-paths)
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(if (and *cross-chicken* (not *host-extension*))
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- (make-pathname C_TARGET_LIB_HOME (sprintf "chicken/~a" C_BINARY_VERSION))
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- (repository-path)))
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+ (list (make-pathname C_TARGET_LIB_HOME (sprintf "chicken/~a" C_BINARY_VERSION)))
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+ (cons (repository-path) (repository-extra-paths))))
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(define (get-prefix #!optional runtime)
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(cond ((and *cross-chicken*
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@@ -757,7 +757,10 @@
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"installed extension has no information about which egg it belongs to"
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(pathname-file sf))
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#f))))
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- (glob (make-pathname (repo-path) "*" "setup-info")))
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+ (append-map
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+ (lambda (path)
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+ (glob (make-pathname path "*" "setup-info")))
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+ (repo-paths)))
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equal?))
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(define (list-available-extensions trans locn)
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diff --git a/chicken.import.scm b/chicken.import.scm
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index baa7316..2839b16 100644
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--- a/chicken.import.scm
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+++ b/chicken.import.scm
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@@ -201,6 +201,7 @@
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repl
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repl-prompt
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repository-path
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+ repository-extra-paths
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require
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reset
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reset-handler
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diff --git a/eval.scm b/eval.scm
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index bbcd86c..838588d 100644
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--- a/eval.scm
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+++ b/eval.scm
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@@ -81,6 +81,7 @@
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(define-constant source-file-extension ".scm")
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(define-constant setup-file-extension "setup-info")
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(define-constant repository-environment-variable "CHICKEN_REPOSITORY")
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+(define-constant repository-extra-environment-variable "CHICKEN_REPOSITORY_EXTRA")
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(define-constant prefix-environment-variable "CHICKEN_PREFIX")
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; these are actually in unit extras, but that is used by default
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@@ -1180,6 +1181,25 @@
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(define repository-path ##sys#repository-path)
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+(define ##sys#repository-extra-paths
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+ (let* ((repaths (get-environment-variable repository-extra-environment-variable))
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+ (repaths (if repaths
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+ (let ((len (string-length repaths)))
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+ (let loop ((i 0) (offset 0) (res '()))
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+ (cond ((> i len)
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+ (reverse res))
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+ ((or (= i len) (eq? #\: (string-ref repaths i)))
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+ (loop (+ i 1) (+ i 1) (cons (substring repaths offset i) res)))
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+ (else
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+ (loop (+ i 1) offset res)))))
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+ '())))
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+ (lambda (#!optional val)
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+ (if val
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+ (set! repaths val)
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+ repaths))))
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+
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+(define repository-extra-paths ##sys#repository-extra-paths)
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+
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(define ##sys#setup-mode #f)
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(define ##sys#find-extension
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@@ -1197,6 +1217,7 @@
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(let loop ((paths (##sys#append
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(if ##sys#setup-mode '(".") '())
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(if rp (list rp) '())
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+ (##sys#repository-extra-paths)
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(if inc? ##sys#include-pathnames '())
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(if ##sys#setup-mode '() '("."))) ))
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(and (pair? paths)
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@@ -1256,12 +1277,16 @@
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[string-append string-append]
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[read read] )
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(lambda (id loc)
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- (and-let* ((rp (##sys#repository-path)))
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- (let* ((p (##sys#canonicalize-extension-path id loc))
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- (rpath (string-append rp "/" p ".")) )
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- (cond ((file-exists? (string-append rpath setup-file-extension))
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- => (cut with-input-from-file <> read) )
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- (else #f) ) ) ) ) ))
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+ (let loop ((rpaths (cons (##sys#repository-path) (##sys#repository-extra-paths))))
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+ (and (pair? rpaths)
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+ (let ((rp (car rpaths)))
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+ (if (not rp)
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+ (loop (cdr rpaths))
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+ (let* ((p (##sys#canonicalize-extension-path id loc))
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+ (rpath (string-append rp "/" p ".")) )
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+ (cond ((file-exists? (string-append rpath setup-file-extension))
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+ => (cut with-input-from-file <> read) )
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+ (else (loop (cdr rpaths))) ) )) ))) ) ))
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(define (extension-information ext)
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(##sys#extension-information ext 'extension-information) )
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--
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2.1.0
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