On 2022-01-14 21:56, Liliana Marie Prikler wrote: > Hi Andrew, > > Am Donnerstag, dem 09.12.2021 um 12:01 +0300 schrieb Andrew Tropin: >> >> * guix/build/emacs-build-system.scm (%default-exclude): Add >> generation of >> -pkg.el files for packages, which do not provide them. >> --- >> Implemented phase, which generates -pkg.el from comments in library >> file.  The solution for finding main el file of the package is a >> little hacky, because package name isn't available build time. >> >> I took a part of the elisp implementation from melpa source code. >> https://github.com/melpa/melpa/blob/master/package-build/package-build.el#L553 > As promised, I took a deeper look at your patch. As already noted, > there were some clean-up actions I had to perform, such as keeping to > our line limit (it was not easy, I tell you) among other things. Also, > confusingly, your condition-case code did not handle errors and wrong > handling of the version field blew up everything for me. Did you test > this code? I thought it was the version I used for past a few weeks, however I could send a little outdated version, not the latest one by accident. Tested it with guix build emacs-paredit. See your fix which wraps both forms in one let, thank you, yep, it's very likely I sent an intermediate version of the patch accidentially. > > In any case, attached is my revised patch. I so far only checked it > with emacs-olivetti -- a package whose description is missing in > current Guix Emacs. I'll give everyone some time to test things before > pushing this however; I don't want to break a bunch of Emacs packages > scattered around various files. > > Cheers > From 9fa6a09a131cfe436ca053c960ed9625263bc650 Mon Sep 17 00:00:00 2001 > From: Andrew Tropin > Date: Thu, 9 Dec 2021 12:01:46 +0300 > Subject: [PATCH] build-system: emacs: Ensure that package descriptions are > generated. > MIME-Version: 1.0 > Content-Type: text/plain; charset=UTF-8 > Content-Transfer-Encoding: 8bit > > This patch addresses the second part of . > While existing -pkg.el files were previously installed, no such files > were generated for packages lacking them, resulting in packages not > being listed as installed and not being available towards > “describe-package”. > > * guix/build/emacs-build-system.scm (find-root-library-file) > (ensure-package-description): New variables. > (%standard-phases): Add ‘ensure-package-description’. > --- > guix/build/emacs-build-system.scm | 77 ++++++++++++++++++++++++++++++- > 1 file changed, 76 insertions(+), 1 deletion(-) > > diff --git a/guix/build/emacs-build-system.scm b/guix/build/emacs-build-system.scm > index ab77e57f33..58d2a9b9f4 100644 > --- a/guix/build/emacs-build-system.scm > +++ b/guix/build/emacs-build-system.scm > @@ -140,6 +140,79 @@ (define (substitute-program-names) > (substitute-program-names)))) > #t)) > > +(define (find-root-library-file name) > + (let loop ((parts (string-split > + (package-name-version->elpa-name-version name) #\-)) > + (candidate "")) > + (cond > + ;; at least one version part is given, so we don't terminate "early" > + ((null? parts) #f) > + ((string-null? candidate) (loop (cdr parts) (car parts))) > + ((file-exists? (string-append candidate ".el")) candidate) > + (else > + (loop (cdr parts) (string-append candidate "-" (car parts))))))) > + > +(define* (ensure-package-description #:key outputs #:allow-other-keys) > + (define (write-pkg-file name) > + (define summary-regexp > + "^;;; [^ ]*\\.el ---[ \t]*\\(.*?\\)[ \t]*\\(-\\*-.*-\\*-[ \t]*\\)?$") > + (define %write-pkg-file-form > + `(progn > + (require 'lisp-mnt) > + (require 'package) > + > + (defun build-package-desc-from-library (name) > + (package-desc-from-define > + name > + ;; Workaround for malformed version string (for example "24 (beta)" > + ;; in paredit.el), try to parse version obtained by lm-version, > + ;; before trying to create package-desc. Otherwis the whole process s/Otherwis/Otherwise, > + ;; of generation -pkg.el will fail. > + (condition-case > + nil > + (let ((version (lm-version))) > + ;; raises an error if version is invalid > + (and (version-to-list version) version)) > + (error "0.0.0")) > + (or (save-excursion > + (goto-char (point-min)) > + (and (re-search-forward ,summary-regexp nil t) > + (match-string-no-properties 1))) > + package--default-summary) > + (let ((require-lines (lm-header-multiline "package-requires"))) > + (and require-lines > + (package--prepare-dependencies > + (package-read-from-string > + (mapconcat 'identity require-lines " "))))) > + :kind 'single > + :url (lm-homepage) > + :keywords (lm-keywords-list) > + :maintainer (lm-maintainer) > + :authors (lm-authors))) > + > + (defun generate-package-description-file (name) > + (package-generate-description-file > + (build-package-desc-from-library name) > + (concat name "-pkg.el"))) > + > + (condition-case > + err > + (let ((name (file-name-base (buffer-file-name)))) > + (generate-package-description-file name) > + (message (concat name "-pkg.el file generated."))) > + (error > + (message "There are some errors during generation of -pkg.el file:") > + (message "%s" (error-message-string err)))))) > + > + (unless (file-exists? (string-append name "-pkg.el")) > + (emacs-batch-edit-file (string-append name ".el") > + %write-pkg-file-form))) > + > + (let* ((out (assoc-ref outputs "out")) > + (elpa-name-ver (store-directory->elpa-name-version out))) > + (with-directory-excursion (elpa-directory out) > + (and=> (find-root-library-file elpa-name-ver) write-pkg-file)))) > + > (define* (check #:key tests? (test-command '("make" "check")) > (parallel-tests? #t) #:allow-other-keys) > "Run the tests by invoking TEST-COMMAND. > @@ -279,8 +352,10 @@ (define %standard-phases > (add-after 'make-autoloads 'enable-autoloads-compilation > enable-autoloads-compilation) > (add-after 'enable-autoloads-compilation 'patch-el-files patch-el-files) > + (add-after 'patch-el-files 'ensure-package-description > + ensure-package-description) > ;; The .el files are byte compiled directly in the store. > - (add-after 'patch-el-files 'build build) > + (add-after 'ensure-package-description 'build build) > (add-after 'build 'validate-compiled-autoloads validate-compiled-autoloads) > (add-after 'validate-compiled-autoloads 'move-doc move-doc))) Looks cleaner than original implementation, thank you!) Applied on my local checkout of guix channel, list-packages now shows 117 external packages =) Will keep it for a while and let you know if any problems will reveal themselves. -- Best regards, Andrew Tropin