diff options
Diffstat (limited to 'emacs/guix-main.scm')
| -rw-r--r-- | emacs/guix-main.scm | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm index c62044056f..5358f3bfa4 100644 --- a/emacs/guix-main.scm +++ b/emacs/guix-main.scm @@ -684,6 +684,8 @@ ENTRIES is a list of installed manifest entries." (license-proc (lambda (_ license-name) (packages-by-license (lookup-license license-name)))) + (location-proc (lambda (_ location) + (packages-by-location-file location))) (all-proc (lambda _ (all-available-packages))) (newest-proc (lambda _ (newest-available-packages)))) `((package @@ -693,6 +695,7 @@ ENTRIES is a list of installed manifest entries." (obsolete . ,(apply-to-first obsolete-package-patterns)) (regexp . ,regexp-proc) (license . ,license-proc) + (location . ,location-proc) (all-available . ,all-proc) (newest-available . ,newest-proc)) (output @@ -702,6 +705,7 @@ ENTRIES is a list of installed manifest entries." (obsolete . ,(apply-to-first obsolete-output-patterns)) (regexp . ,regexp-proc) (license . ,license-proc) + (location . ,location-proc) (all-available . ,all-proc) (newest-available . ,newest-proc))))) @@ -1097,3 +1101,41 @@ Return #t if the shell command was executed successfully." (define (license-entries search-type . search-values) (map license->sexp (apply find-licenses search-type search-values))) + + +;;; Package locations + +(define-values (packages-by-location-file + package-location-files) + (let* ((table (delay (fold-packages + (lambda (package table) + (let ((file (location-file + (package-location package)))) + (vhash-cons file package table))) + vlist-null))) + (files (delay (vhash-fold + (lambda (file _ result) + (if (member file result) + result + (cons file result))) + '() + (force table))))) + (values + (lambda (file) + "Return the (possibly empty) list of packages defined in location FILE." + (vhash-fold* cons '() file (force table))) + (lambda () + "Return the list of file names of all package locations." + (force files))))) + +(define %package-location-param-alist + `((id . ,identity) + (location . ,identity) + (number-of-packages . ,(lambda (location) + (length (packages-by-location-file location)))))) + +(define package-location->sexp + (object-transformer %package-location-param-alist)) + +(define (package-location-entries) + (map package-location->sexp (package-location-files))) |