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| author | Mark H Weaver <mhw@netris.org> | 2013-02-12 01:24:21 -0500 |
|---|---|---|
| committer | Mark H Weaver <mhw@netris.org> | 2013-02-13 22:05:19 -0500 |
| commit | dc5669cd654019994fa59ab26db59c292332ae55 (patch) | |
| tree | c288dbbba737db6b71ca42da37b700b28caa6fac /gnu/packages.scm | |
| parent | c2868b1e0c4155fbeffac9860d69a1ed6041156a (diff) | |
| download | guix-dc5669cd654019994fa59ab26db59c292332ae55.tar.gz | |
Build newest versions unless specified, and implement upgrades.
* gnu/packages.scm (find-newest-available-packages): New exported procedure. * guix-build.in (newest-available-packages, find-best-packages-by-name): New procedures. (find-package): Use find-best-packages-by-name, to guarantee that if a version number is not specified, only the newest versions will be considered. * guix-package.in (%options): Add --upgrade/-u option. (newest-available-packages, find-best-packages-by-name, upgradeable?): New procedures. (find-package): Use find-best-packages-by-name, to guarantee that if a version number is not specified, only the newest versions will be considered. (process-actions): Implement upgrade option. * doc/guix.texi (Invoking guix-package): In the description of --install, mention that if no version number is specified, the newest available version will be selected.
Diffstat (limited to 'gnu/packages.scm')
| -rw-r--r-- | gnu/packages.scm | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/gnu/packages.scm b/gnu/packages.scm index f2f98de476..b639541788 100644 --- a/gnu/packages.scm +++ b/gnu/packages.scm @@ -22,6 +22,7 @@ #:use-module (guix utils) #:use-module (ice-9 ftw) #:use-module (ice-9 vlist) + #:use-module (ice-9 match) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) #:use-module (srfi srfi-39) @@ -30,7 +31,8 @@ %patch-directory %bootstrap-binaries-path fold-packages - find-packages-by-name)) + find-packages-by-name + find-newest-available-packages)) ;;; Commentary: ;;; @@ -153,3 +155,25 @@ then only return packages whose version is equal to VERSION." (cons package result) result)) '())) + +(define (find-newest-available-packages) + "Return a vhash keyed by package names, and with +associated values of the form + + (newest-version newest-package ...) + +where the preferred package is listed first." + + ;; FIXME: Currently, the preferred package is whichever one + ;; was found last by 'fold-packages'. Find a better solution. + (fold-packages (lambda (p r) + (let ((name (package-name p)) + (version (package-version p))) + (match (vhash-assoc name r) + ((_ newest-so-far . pkgs) + (case (version-compare version newest-so-far) + ((>) (vhash-cons name `(,version ,p) r)) + ((=) (vhash-cons name `(,version ,p ,@pkgs) r)) + ((<) r))) + (#f (vhash-cons name `(,version ,p) r))))) + vlist-null)) |