;;; package-build.el --- Tools for assembling a package archive ;; Copyright (C) 2011-2013 Donald Ephraim Curtis ;; Copyright (C) 2012-2014 Steve Purcell ;; Copyright (C) 2009 Phil Hagelberg ;; Author: Donald Ephraim Curtis ;; Created: 2011-09-30 ;; Version: 0.1 ;; Keywords: tools ;; Package-Requires: ((cl-lib "0.2")) ;; This file is not (yet) part of GNU Emacs. ;; However, it is distributed under the same license. ;; GNU Emacs is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation; either version 3, or (at your option) ;; any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, ;; Boston, MA 02110-1301, USA. ;;; Commentary: ;; This file allows a curator to publish an archive of Emacs packages. ;; The archive is generated from a set of recipes which describe elisp ;; projects and repositories from which to get them. The term ;; "package" here is used to mean a specific version of a project that ;; is prepared for download and installation. ;;; Code: (require 'cl-lib) (require 'package) (require 'lisp-mnt) (require 'json) (defconst pb/this-dir (file-name-directory (or load-file-name (buffer-file-name)))) (defgroup package-build nil "Facilities for building package.el-compliant packages from upstream source code." :group 'development) (defcustom package-build-working-dir (expand-file-name "working/" pb/this-dir) "Directory in which to keep checkouts." :group 'package-build :type 'string) (defcustom package-build-archive-dir (expand-file-name "packages/" pb/this-dir) "Directory in which to keep compiled archives." :group 'package-build :type 'string) (defcustom package-build-recipes-dir (expand-file-name "recipes/" pb/this-dir) "Directory containing recipe files." :group 'package-build :type 'string) (defcustom package-build-verbose t "When non-nil, `package-build' feels free to print information about its progress." :group 'package-build :type 'boolean) (defcustom package-build-stable nil "When non-nil, `package-build' tries to build packages from versions-tagged code." :group 'package-build :type 'boolean) (defcustom package-build-timeout-executable (let ((prog (or (executable-find "timeout") (executable-find "gtimeout")))) (when (and prog (string-match-p "^ *-k" (shell-command-to-string (concat prog " --help")))) prog)) "Path to a GNU coreutils \"timeout\" command if available. This must be a version which supports the \"-k\" option." :group 'package-build :type '(file :must-match t)) (defcustom package-build-tar-executable (or (executable-find "gtar") (executable-find "tar")) "Path to a (preferably GNU) tar command. Certain package names (e.g. \"@\") may not work properly with a BSD tar." :group 'package-build :type '(file :must-match t)) (defcustom package-build-write-melpa-badge-images nil "When non-nil, write MELPA badge images alongside packages, for use on github pages etc." :group 'package-build :type 'boolean) ;;; Internal Variables (defvar pb/recipe-alist nil "Internal list of package build specs. Do not use this directly. Use `package-build-recipe-alist' function.") (defvar pb/recipe-alist-initialized nil "Determines if `pb/recipe-alist` has been initialized.") (defvar pb/archive-alist nil "Internal list of already-built packages, in the standard package.el format. Do not use this directly. Use `package-build-archive-alist' function for access to this function") (defvar pb/archive-alist-initialized nil "Determines if pb/archive-alist has been initialized.") (defconst package-build-default-files-spec '("*.el" "*.el.in" "dir" "*.info" "*.texi" "*.texinfo" "doc/dir" "doc/*.info" "doc/*.texi" "doc/*.texinfo" (:exclude ".dir-locals.el" "test.el" "tests.el" "*-test.el" "*-tests.el")) "Default value for :files attribute in recipes.") (defun pb/message (format-string &rest args) "Log a message using FORMAT-STRING and ARGS as per `message'." (when package-build-verbose (apply 'message format-string args))) (defun pb/slurp-file (file-name) "Return the contents of FILE-NAME as a string, or nil if no such file exists." (when (file-exists-p file-name) (with-temp-buffer (insert-file-contents file-name) (buffer-substring-no-properties (point-min) (point-max))))) (defun pb/string-rtrim (str) "Remove trailing whitespace from `STR'." (replace-regexp-in-string "[ \t\n]*$" "" str)) (defun pb/parse-time (str) "Parse STR as a time, and format as a YYYYMMDD.HHMM string." ;; We remove zero-padding the HH portion, as it is lost ;; when stored in the archive-contents (let* ((s (substring-no-properties str)) (time (date-to-time (if (string-match "^\\([0-9]\\{4\\}\\)/\\([0-9]\\{2\\}\\)/\\([0-9]\\{2\\}\\) \\([0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\)$" str) (concat (match-string 1 str) "-" (match-string 2 str) "-" (match-string 3 str) " " (match-string 4 str)) str)))) (concat (format-time-string "%Y%m%d." time) (format "%d" (or (string-to-number (format-time-string "%H%M" time)) 0))))) (defun pb/string-match-all (regex str &rest groups) "Find every match for `REGEX' within `STR'. Return a list containing the full match string and match for groups `GROUPS'. The return list is of the form ((FULL GROUP1 GROUP2 ...) ...) where FULL is the complete regexp match and GROUP1, GROUP2, ... are the regex groups specified by the `GROUPS' argument. If `GROUPS' is nil then FULL and GROUP1 will be identical." (let (result (pos 0) (groups (or groups '(0)))) (while (string-match regex str pos) (push (cons (match-string 0 str) (mapcar (lambda (group) (match-string group str)) groups)) result) (setq pos (match-end 0))) result)) (defun pb/find-parse-time (regex &optional bound) "Find REGEX in current buffer and format as a time version, optionally looking only as far as BOUND." (pb/parse-time (progn (re-search-backward regex bound) (match-string-no-properties 1)))) (defun pb/valid-version-string (str) "Return true if STR is a valid version, otherwise return nil." (ignore-errors (version-to-list str))) (defun pb/find-tag-version-newest (regex &optional bound &rest additional-groups) "Find the newest version matching REGEX, optionally looking only as far as BOUND." (let* ((text (buffer-substring-no-properties (or bound (point-min)) (point))) (tags (cl-remove-if-not (lambda (tag-version) (pb/valid-version-string (cadr tag-version))) (apply 'pb/string-match-all regex text 1 additional-groups)))) (car (nreverse (sort tags (lambda (v1 v2) (version< (cadr v1) (cadr v2)))))))) (defun pb/find-parse-time-latest (regex &optional bound) "Find the latest timestamp matching REGEX, optionally looking only as far as BOUND." (let* ((text (buffer-substring-no-properties (or bound (point-min)) (point))) (times (mapcar 'pb/parse-time (mapcar 'cadr (pb/string-match-all regex text 1))))) (car (nreverse (sort times 'string<))))) (defun pb/run-process (dir command &rest args) "In DIR (or `default-directory' if unset) run COMMAND with ARGS. Output is written to the current buffer." (let* ((default-directory (file-name-as-directory (or dir default-directory))) (argv (if package-build-timeout-executable (append (list package-build-timeout-executable "-k" "60" "600" command) args) (cons command args)))) (unless (file-directory-p default-directory) (error "Can't run process in non-existent directory: %s" default-directory)) (let ((exit-code (apply 'process-file (car argv) nil (current-buffer) t (cdr argv)))) (or (zerop exit-code) (error "Command '%s' exited with non-zero status %d: %s" argv exit-code (buffer-string)))))) (defun pb/run-process-match (regex dir prog &rest args) "Find match for REGEX when - in DIR, or `default-directory' if unset - we run PROG with ARGS." (with-temp-buffer (apply 'pb/run-process dir prog args) (goto-char (point-min)) (re-search-forward regex) (match-string-no-properties 1))) (defun package-build-checkout (package-name config working-dir) "Check out source for PACKAGE-NAME with CONFIG under WORKING-DIR. In turn, this function uses the :fetcher option in the CONFIG to choose a source-specific fetcher function, which it calls with the same arguments. Returns a last-modification timestamp for the :files listed in CONFIG, if any, or `package-build-default-files-spec' otherwise." (let ((repo-type (plist-get config :fetcher))) (pb/message "Fetcher: %s" (symbol-name repo-type)) (unless (eq 'wiki repo-type) (pb/message "Source: %s\n" (or (plist-get config :repo) (plist-get config :url)))) (funcall (intern (format "pb/checkout-%s" (symbol-name repo-type))) package-name config (file-name-as-directory working-dir)))) (defvar pb/last-wiki-fetch-time 0 "The time at which an emacswiki URL was last requested. This is used to avoid exceeding the rate limit of 1 request per 2 seconds; the server cuts off after 10 requests in 20 seconds.") (defvar pb/wiki-min-request-interval 3 "The shortest permissible interval between successive requests for Emacswiki URLs.") (defmacro pb/with-wiki-rate-limit (&rest body) "Rate-limit BODY code passed to this macro to match EmacsWiki's rate limiting." (let ((now (cl-gensym)) (elapsed (cl-gensym))) `(let* ((,now (float-time)) (,elapsed (- ,now pb/last-wiki-fetch-time))) (when (< ,elapsed pb/wiki-min-request-interval) (let ((wait (- pb/wiki-min-request-interval ,elapsed))) (pb/message "Waiting %.2f secs before hitting Emacswiki again" wait) (sleep-for wait))) (unwind-protect (progn ,@body) (setq pb/last-wiki-fetch-time (float-time)))))) (require 'mm-decode) (defun pb/url-copy-file (url newname &optional ok-if-already-exists) "Copy URL to NEWNAME. Both args must be strings. Like `url-copy-file', but it produces an error if the http response is not 200. Signals a `file-already-exists' error if file NEWNAME already exists, unless a third argument OK-IF-ALREADY-EXISTS is supplied and non-nil. A number as third arg means request confirmation if NEWNAME already exists." (if (and (file-exists-p newname) (not ok-if-already-exists)) (error "Opening output file: File already exists, %s" newname)) (let ((buffer (url-retrieve-synchronously url)) (handle nil)) (if (not buffer) (error "Opening input file: No such file or directory, %s" url)) (with-current-buffer buffer (unless (= 200 url-http-response-status) (error "HTTP error %s fetching %s" url-http-response-status url)) (setq handle (mm-dissect-buffer t))) (mm-save-part-to-file handle newname) (kill-buffer buffer) (mm-destroy-parts handle))) (defun pb/grab-wiki-file (filename) "Download FILENAME from emacswiki, returning its last-modified time." (let* ((download-url (format "http://www.emacswiki.org/emacs/download/%s" filename)) (wiki-url (format "http://www.emacswiki.org/emacs/%s" filename))) (pb/with-wiki-rate-limit (pb/url-copy-file download-url filename t)) (when (zerop (nth 7 (file-attributes filename))) (error "Wiki file %s was empty - has it been removed?" filename)) ;; The Last-Modified response header for the download is actually ;; correct for the file, but we have no access to that ;; header. Instead, we must query the non-raw emacswiki page for ;; the file. ;; Since those Emacswiki lookups are time-consuming, we maintain a ;; foo.el.stamp file containing ("SHA1" . "PARSED_TIME") (let* ((new-content-hash (secure-hash 'sha1 (pb/slurp-file filename))) (stamp-file (concat filename ".stamp")) (stamp-info (pb/read-from-file stamp-file)) (prev-content-hash (car stamp-info))) (if (and prev-content-hash (string-equal new-content-hash prev-content-hash)) ;; File has not changed, so return old timestamp (progn (pb/message "%s is unchanged" filename) (cdr stamp-info)) (pb/message "%s has changed - checking mod time" filename) (let ((new-timestamp (with-current-buffer (pb/with-wiki-rate-limit (url-retrieve-synchronously wiki-url)) (unless (= 200 url-http-response-status) (error "HTTP error %s fetching %s" url-http-response-status wiki-url)) (goto-char (point-max)) (pb/find-parse-time "Last edited \\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\} [A-Z]\\{3\\}\\)" url-http-end-of-headers)))) (pb/dump (cons new-content-hash new-timestamp) stamp-file) new-timestamp))))) (defun pb/checkout-wiki (name config dir) "Checkout package NAME with config CONFIG from the EmacsWiki into DIR." (unless package-build-stable (with-current-buffer (get-buffer-create "*package-build-checkout*") (unless (file-exists-p dir) (make-directory dir)) (let ((files (or (plist-get config :files) (list (format "%s.el" name)))) (default-directory dir)) (car (nreverse (sort (mapcar 'pb/grab-wiki-file files) 'string-lessp))))))) (defun pb/darcs-repo (dir) "Get the current darcs repo for DIR." (pb/run-process-match "Default Remote: \\(.*\\)" dir "darcs" "show" "repo")) (defun pb/checkout-darcs (name config dir) "Check package NAME with config CONFIG out of darcs into DIR." (unless package-build-stable (let ((repo (plist-get config :url))) (with-current-buffer (get-buffer-create "*package-build-checkout*") (cond ((and (file-exists-p (expand-file-name "_darcs" dir)) (string-equal (pb/darcs-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "darcs" "pull")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (pb/run-process nil "darcs" "get" repo dir))) (apply 'pb/run-process dir "darcs" "changes" "--max-count" "1" (pb/expand-source-file-list dir config)) (pb/find-parse-time "\\([a-zA-Z]\\{3\\} [a-zA-Z]\\{3\\} \\( \\|[0-9]\\)[0-9] [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\} [A-Za-z]\\{3\\} [0-9]\\{4\\}\\)"))))) (defun pb/fossil-repo (dir) "Get the current fossil repo for DIR." (pb/run-process-match "\\(.*\\)" dir "fossil" "remote-url")) (defun pb/checkout-fossil (name config dir) "Check package NAME with config CONFIG out of fossil into DIR." (unless package-build-stable (let ((repo (plist-get config :url))) (with-current-buffer (get-buffer-create "*package-build-checkout*") (cond ((and (or (file-exists-p (expand-file-name ".fslckout" dir)) (file-exists-p (expand-file-name "_FOSSIL_" dir))) (string-equal (pb/fossil-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "fossil" "update")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (make-directory dir) (pb/run-process dir "fossil" "clone" repo "repo.fossil") (pb/run-process dir "fossil" "open" "repo.fossil"))) (pb/run-process dir "fossil" "timeline" "-n" "1" "-t" "ci") (or (pb/find-parse-time "=== \\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} ===\n[0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\) ") (error "No valid timestamps found!")))))) (defun pb/svn-repo (dir) "Get the current svn repo for DIR." (pb/run-process-match "URL: \\(.*\\)" dir "svn" "info")) (defun pb/trim (str &optional chr) "Return a copy of STR without any trailing CHR (or space if unspecified)." (if (equal (elt str (1- (length str))) (or chr ? )) (substring str 0 (1- (length str))) str)) (defun pb/princ-exists (dir) "Print a message that the contents of DIR will be updated." (pb/message "Updating %s" dir)) (defun pb/princ-checkout (repo dir) "Print a message that REPO will be checked out into DIR." (pb/message "Cloning %s to %s" repo dir)) (defun pb/checkout-svn (name config dir) "Check package NAME with config CONFIG out of svn into DIR." (unless package-build-stable (with-current-buffer (get-buffer-create "*package-build-checkout*") (let ((repo (pb/trim (plist-get config :url) ?/)) (bound (goto-char (point-max)))) (cond ((and (file-exists-p (expand-file-name ".svn" dir)) (string-equal (pb/svn-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "svn" "up")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (pb/run-process nil "svn" "checkout" repo dir))) (apply 'pb/run-process dir "svn" "info" (pb/expand-source-file-list dir config)) (or (pb/find-parse-time-latest "Last Changed Date: \\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\( [+-][0-9]\\{4\\}\\)?\\)" bound) (error "No valid timestamps found!")))))) (defun pb/cvs-repo (dir) "Get the current CVS root and repository for DIR. Return a cons cell whose `car' is the root and whose `cdr' is the repository." (apply 'cons (mapcar (lambda (file) (pb/string-rtrim (pb/slurp-file (expand-file-name file dir)))) '("CVS/Root" "CVS/Repository")))) (defun pb/checkout-cvs (name config dir) "Check package NAME with config CONFIG out of cvs into DIR." (unless package-build-stable (with-current-buffer (get-buffer-create "*package-build-checkout*") (let ((root (pb/trim (plist-get config :url) ?/)) (repo (or (plist-get config :module) (symbol-name name))) (bound (goto-char (point-max)))) (cond ((and (file-exists-p (expand-file-name "CVS" dir)) (equal (pb/cvs-repo dir) (cons root repo))) (pb/princ-exists dir) (pb/run-process dir "cvs" "update" "-dP")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout (format "%s from %s" repo root) dir) ;; CVS insists on relative paths as target directory for checkout (for ;; whatever reason), and puts "CVS" directories into every subdirectory ;; of the current working directory given in the target path. To get CVS ;; to just write to DIR, we need to execute CVS from the parent ;; directory of DIR, and specific DIR as relative path. Hence all the ;; following mucking around with paths. CVS is really horrid. (let* ((dir (directory-file-name dir)) (working-dir (file-name-directory dir)) (target-dir (file-name-nondirectory dir))) (pb/run-process working-dir "env" "TZ=UTC" "cvs" "-z3" "-d" root "checkout" "-d" target-dir repo)))) (apply 'pb/run-process dir "cvs" "log" (pb/expand-source-file-list dir config)) (or (pb/find-parse-time-latest "date: \\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\( [+-][0-9]\\{4\\}\\)?\\)" bound) (pb/find-parse-time-latest "date: \\([0-9]\\{4\\}/[0-9]\\{2\\}/[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\);" bound) (error "No valid timestamps found!")) )))) (defun pb/git-repo (dir) "Get the current git repo for DIR." (pb/run-process-match "Fetch URL: \\(.*\\)" dir "git" "remote" "show" "-n" "origin")) (defun pb/git-head-branch (dir) "Get the current git repo for DIR." (or (ignore-errors (pb/run-process-match "HEAD branch: \\(.*\\)" dir "git" "remote" "show" "origin")) "master")) (defun pb/checkout-git (name config dir) "Check package NAME with config CONFIG out of git into DIR." (let ((repo (plist-get config :url)) (commit (or (plist-get config :commit) (let ((branch (plist-get config :branch))) (when branch (concat "origin/" branch)))))) (with-current-buffer (get-buffer-create "*package-build-checkout*") (goto-char (point-max)) (cond ((and (file-exists-p (expand-file-name ".git" dir)) (string-equal (pb/git-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "git" "remote" "update")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (pb/run-process nil "git" "clone" repo dir))) (if package-build-stable (let* ((bound (goto-char (point-max))) (tag-version (and (pb/run-process dir "git" "tag") (or (pb/find-tag-version-newest "^\\(?:v[.-]?\\)?\\([0-9]+[^ \t\n]*\\)$" bound) (error "No valid stable versions found for %s" name))))) ;; Using reset --hard here to comply with what's used for ;; unstable, but maybe this should be a checkout? (pb/run-process dir "git" "reset" "--hard" (concat "tags/" (car tag-version))) (pb/run-process dir "git" "submodule" "update" "--init" "--recursive") (cadr tag-version)) (pb/run-process dir "git" "reset" "--hard" (or commit (concat "origin/" (pb/git-head-branch dir)))) (pb/run-process dir "git" "submodule" "update" "--init" "--recursive") (apply 'pb/run-process dir "git" "log" "--first-parent" "-n1" "--pretty=format:'\%ci'" (pb/expand-source-file-list dir config)) (pb/find-parse-time "\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\( [+-][0-9]\\{4\\}\\)?\\)"))))) (defun pb/checkout-github (name config dir) "Check package NAME with config CONFIG out of github into DIR." (let* ((url (format "git://github.com/%s.git" (plist-get config :repo)))) (pb/checkout-git name (plist-put (copy-sequence config) :url url) dir))) (defun pb/bzr-expand-repo (repo) "Get REPO expanded name." (pb/run-process-match "\\(?:branch root\\|repository branch\\): \\(.*\\)" nil "bzr" "info" repo)) (defun pb/bzr-repo (dir) "Get the current bzr repo for DIR." (pb/run-process-match "parent branch: \\(.*\\)" dir "bzr" "info")) (defun pb/checkout-bzr (name config dir) "Check package NAME with config CONFIG out of bzr into DIR." (unless package-build-stable (let ((repo (pb/bzr-expand-repo (plist-get config :url)))) (with-current-buffer (get-buffer-create "*package-build-checkout*") (goto-char (point-max)) (cond ((and (file-exists-p (expand-file-name ".bzr" dir)) (string-equal (pb/bzr-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "bzr" "merge")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (pb/run-process nil "bzr" "branch" repo dir))) (apply 'pb/run-process dir "bzr" "log" "-l1" (pb/expand-source-file-list dir config)) (pb/find-parse-time "\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}:[0-9]\\{2\\}\\( [+-][0-9]\\{4\\}\\)?\\)"))))) (defun pb/hg-repo (dir) "Get the current hg repo for DIR." (pb/run-process-match "default = \\(.*\\)" dir "hg" "paths")) (defun pb/checkout-hg (name config dir) "Check package NAME with config CONFIG out of hg into DIR." (let ((repo (plist-get config :url))) (with-current-buffer (get-buffer-create "*package-build-checkout*") (goto-char (point-max)) (cond ((and (file-exists-p (expand-file-name ".hg" dir)) (string-equal (pb/hg-repo dir) repo)) (pb/princ-exists dir) (pb/run-process dir "hg" "pull") (pb/run-process dir "hg" "update")) (t (when (file-exists-p dir) (delete-directory dir t)) (pb/princ-checkout repo dir) (pb/run-process nil "hg" "clone" repo dir))) (if package-build-stable (let* ((bound (goto-char (point-max))) (tag-version (and (pb/run-process dir "hg" "tags") (or (pb/find-tag-version-newest "^\\(?:v[.-]?\\)?\\([0-9]+[^ \t\n]*\\)[ \t]*[0-9]+:\\([[:xdigit:]]+\\)$" bound 2) (error "No valid stable versions found for %s" name))))) (pb/run-process dir "hg" "update" (nth 2 tag-version)) (cadr tag-version)) (apply 'pb/run-process dir "hg" "log" "--style" "compact" "-l1" (pb/expand-source-file-list dir config)) (pb/find-parse-time "\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\} [0-9]\\{2\\}:[0-9]\\{2\\}\\( [+-][0-9]\\{4\\}\\)?\\)"))))) (defun pb/dump (data file &optional pretty-print) "Write DATA to FILE as a Lisp sexp. Optionally PRETTY-PRINT the data." (with-temp-file file (pb/message "File: %s" file) (if pretty-print (pp data (current-buffer)) (print data (current-buffer))))) (defun pb/write-pkg-file (pkg-file pkg-info) "Write PKG-FILE containing PKG-INFO." (with-temp-file pkg-file (pp `(define-package ,(aref pkg-info 0) ,(aref pkg-info 3) ,(aref pkg-info 2) ',(mapcar (lambda (elt) (list (car elt) (package-version-join (cadr elt)))) (aref pkg-info 1)) ;; Append our extra information ,@(apply #'append (mapcar (lambda (entry) (let ((value (cdr entry))) (when (or (symbolp value) (listp value)) ;; We must quote lists and symbols, ;; because Emacs 24.3 and earlier evaluate ;; the package information, which would ;; break for unquoted symbols or lists (setq value (list 'quote value))) (list (car entry) value))) (when (> (length pkg-info) 4) (aref pkg-info 4))))) (current-buffer)) (princ ";; Local Variables:\n;; no-byte-compile: t\n;; End:\n" (current-buffer)))) (defun pb/read-from-file (file-name) "Read and return the Lisp data stored in FILE-NAME, or nil if no such file exists." (when (file-exists-p file-name) (car (read-from-string (pb/slurp-file file-name))))) (defun pb/create-tar (file dir &optional files) "Create a tar FILE containing the contents of DIR, or just FILES if non-nil." (apply 'process-file package-build-tar-executable nil (get-buffer-create "*package-build-checkout*") nil "-cvf" file "--exclude=.svn" "--exclude=CVS" "--exclude=.git*" "--exclude=_darcs" "--exclude=.fslckout" "--exclude=_FOSSIL_" "--exclude=.bzr" "--exclude=.hg" (or (mapcar (lambda (fn) (concat dir "/" fn)) files) (list dir)))) (defun pb/find-package-commentary (file-path) "Get commentary section from FILE-PATH." (when (file-exists-p file-path) (with-temp-buffer (insert-file-contents file-path) (lm-commentary)))) (defun pb/write-pkg-readme (target-dir commentary file-name) "In TARGET-DIR, write COMMENTARY to a -readme.txt file prefixed with FILE-NAME." (when commentary (with-temp-buffer (insert commentary) ;; Adapted from `describe-package-1'. (goto-char (point-min)) (save-excursion (when (re-search-forward "^;;; Commentary:\n" nil t) (replace-match "")) (while (re-search-forward "^\\(;+ ?\\)" nil t) (replace-match "")) (goto-char (point-min)) (when (re-search-forward "\\`\\( *\n\\)+" nil t) (replace-match ""))) (delete-trailing-whitespace) (let ((coding-system-for-write buffer-file-coding-system)) (write-region nil nil (pb/readme-file-name target-dir file-name)))))) (defun pb/readme-file-name (target-dir file-name) "Name of the readme file in TARGET-DIR for the package FILE-NAME." (expand-file-name (concat file-name "-readme.txt") target-dir)) (defun pb/update-or-insert-version (version) "Ensure current buffer has a \"Version: VERSION\" header." (goto-char (point-min)) (if (let ((case-fold-search t)) (re-search-forward "^;+* *Version *: *" nil t)) (progn (move-beginning-of-line nil) (search-forward "V" nil t) (backward-char) (insert "X-Original-") (move-beginning-of-line nil)) (forward-line)) (insert (format ";; Version: %s" version)) (newline)) (defun pb/ensure-ends-here-line (file-path) "Add a 'FILE-PATH ends here' trailing line if missing." (save-excursion (goto-char (point-min)) (let* ((fname (file-name-nondirectory file-path)) (trailer (concat ";;; " fname " ends here"))) (unless (search-forward trailer nil t) (goto-char (point-max)) (newline) (insert trailer) (newline))))) (defun pb/get-package-info (file-path) "Get a vector of package info from the docstrings in FILE-PATH." (when (file-exists-p file-path) (ignore-errors (with-temp-buffer (insert-file-contents file-path) ;; next few lines are a hack for some packages that aren't ;; commented properly. (pb/update-or-insert-version "0") (pb/ensure-ends-here-line file-path) (cl-flet ((package-strip-rcs-id (str) "0")) (pb/package-buffer-info-vec)))))) (defun pb/get-pkg-file-info (file-path) "Get a vector of package info from \"-pkg.el\" file FILE-PATH." (when (file-exists-p file-path) (let ((package-def (pb/read-from-file file-path))) (if (eq 'define-package (car package-def)) (let* ((pkgfile-info (cdr package-def)) (descr (nth 2 pkgfile-info))) (when (string-match "[\r\n]" descr) (error "Illegal multi-line package description in %s" file-path)) (vector (nth 0 pkgfile-info) (mapcar (lambda (elt) (list (car elt) (version-to-list (cadr elt)))) (eval (nth 3 pkgfile-info))) descr (nth 1 pkgfile-info))) (error "No define-package found in %s" file-path))))) (defun pb/merge-package-info (pkg-info name version) "Return a version of PKG-INFO updated with NAME, VERSION and info from CONFIG. If PKG-INFO is nil, an empty one is created." (let* ((merged (or (copy-sequence pkg-info) (vector name nil "No description available." version)))) (aset merged 0 name) (aset merged 3 version) merged)) (defun pb/archive-entry (pkg-info type) "Return the archive-contents cons cell for PKG-INFO and TYPE." (let* ((name (intern (aref pkg-info 0))) (requires (aref pkg-info 1)) (desc (or (aref pkg-info 2) "No description available.")) (version (aref pkg-info 3)) (extras (when (> (length pkg-info) 4) (aref pkg-info 4)))) (cons name (vector (version-to-list version) requires desc type extras)))) (defun pb/archive-file-name (archive-entry) "Return the path of the file in which the package for ARCHIVE-ENTRY is stored." (let* ((name (car archive-entry)) (pkg-info (cdr archive-entry)) (version (package-version-join (aref pkg-info 0))) (flavour (aref pkg-info 3))) (expand-file-name (format "%s-%s.%s" name version (if (eq flavour 'single) "el" "tar")) package-build-archive-dir))) (defun pb/entry-file-name (archive-entry) "Return the path of the file in which the package for ARCHIVE-ENTRY is stored." (let* ((name (car archive-entry)) (pkg-info (cdr archive-entry)) (version (package-version-join (aref pkg-info 0)))) (expand-file-name (format "%s-%s.entry" name version) package-build-archive-dir))) (defun pb/delete-file-if-exists (file) "Delete FILE if it exists." (when (file-exists-p file) (delete-file file))) (defun pb/remove-archive-files (archive-entry) "Remove ARCHIVE-ENTRY from archive-contents, and delete associated file. Note that the working directory (if present) is not deleted by this function, since the archive list may contain another version of the same-named package which is to be kept." (pb/message "Removing archive: %s" archive-entry) (mapcar 'pb/delete-file-if-exists (list (pb/archive-file-name archive-entry) (pb/entry-file-name archive-entry)))) (defun pb/read-recipe (file-name) "Return the plist of recipe info for the package called FILE-NAME." (let ((pkg-info (pb/read-from-file file-name))) (if (string= (symbol-name (car pkg-info)) (file-name-nondirectory file-name)) pkg-info (error "Recipe '%s' contains mismatched package name '%s'" (file-name-nondirectory file-name) (car pkg-info))))) (defun pb/read-recipes () "Return a list of data structures for all recipes in `package-build-recipes-dir'." (cl-loop for file-name in (directory-files package-build-recipes-dir t "^[^.]") collect (pb/read-recipe file-name))) (defun pb/read-recipes-ignore-errors () "Return a list of data structures for all recipes in `package-build-recipes-dir'." (cl-loop for file-name in (directory-files package-build-recipes-dir t "^[^.]") for pkg-info = (condition-case err (pb/read-recipe file-name) (error (pb/message "Error reading recipe %s: %s" file-name (error-message-string err)) nil)) when pkg-info collect pkg-info)) (defun package-build-expand-file-specs (dir specs &optional subdir allow-empty) "In DIR, expand SPECS, optionally under SUBDIR. The result is a list of (SOURCE . DEST), where SOURCE is a source file path and DEST is the relative path to which it should be copied. If the resulting list is empty, an error will be reported. Pass t for ALLOW-EMPTY to prevent this error." (let ((default-directory dir) (prefix (if subdir (format "%s/" subdir) "")) (lst)) (dolist (entry specs lst) (setq lst (if (consp entry) (if (eq :exclude (car entry)) (cl-nset-difference lst (package-build-expand-file-specs dir (cdr entry) nil t) :key 'car :test 'equal) (nconc lst (package-build-expand-file-specs dir (cdr entry) (concat prefix (car entry)) t))) (nconc lst (mapcar (lambda (f) (let ((destname))) (cons f (concat prefix (replace-regexp-in-string "\\.in\\'" "" (file-name-nondirectory f))))) (file-expand-wildcards entry)))))) (when (and (null lst) (not allow-empty)) (error "No matching file(s) found in %s: %s" dir specs)) lst)) (defun pb/config-file-list (config) "Get the :files spec from CONFIG, or return `package-build-default-files-spec'." (let ((file-list (plist-get config :files))) (cond ((null file-list) package-build-default-files-spec) ((eq :defaults (car file-list)) (append package-build-default-files-spec (cdr file-list))) (t file-list)))) (defun pb/expand-source-file-list (dir config) "Shorthand way to expand paths in DIR for source files listed in CONFIG." (mapcar 'car (package-build-expand-file-specs dir (pb/config-file-list config)))) (defun pb/generate-info-files (files source-dir target-dir) "Create .info files from any .texi files listed in FILES. The source and destination file paths are expanded in SOURCE-DIR and TARGET-DIR respectively. Any of the original .texi(nfo) files found in TARGET-DIR are deleted." (dolist (spec files) (let* ((source-file (car spec)) (source-path (expand-file-name source-file source-dir)) (dest-file (cdr spec)) (info-path (expand-file-name (concat (file-name-sans-extension dest-file) ".info") target-dir))) (when (string-match ".texi\\(nfo\\)?$" source-file) (when (not (file-exists-p info-path)) (with-current-buffer (get-buffer-create "*package-build-info*") (ignore-errors (pb/run-process (file-name-directory source-path) "makeinfo" source-path "-o" info-path) (pb/message "Created %s" info-path)))) (pb/message "Removing %s" (expand-file-name dest-file target-dir)) (delete-file (expand-file-name dest-file target-dir)))))) (defun pb/generate-dir-file (files target-dir) "Create dir file from any .info files listed in FILES in TARGET-DIR." (dolist (spec files) (let* ((source-file (car spec)) (dest-file (cdr spec)) (info-path (expand-file-name (concat (file-name-sans-extension dest-file) ".info") target-dir))) (when (and (or (string-match ".info$" source-file) (string-match ".texi\\(nfo\\)?$" source-file)) (file-exists-p info-path)) (with-current-buffer (get-buffer-create "*package-build-info*") (ignore-errors (pb/run-process nil "install-info" (concat "--dir=" (expand-file-name "dir" target-dir)) info-path))))))) (defun pb/copy-package-files (files source-dir target-dir) "Copy FILES from SOURCE-DIR to TARGET-DIR. FILES is a list of (SOURCE . DEST) relative filepath pairs." (cl-loop for (source-file . dest-file) in files do (pb/copy-file (expand-file-name source-file source-dir) (expand-file-name dest-file target-dir)))) (defun pb/copy-file (file newname) "Copy FILE to NEWNAME and create parent directories for NEWNAME if they don't exist." (let ((newdir (file-name-directory newname))) (unless (file-exists-p newdir) (make-directory newdir t))) (cond ((file-regular-p file) (pb/message "%s -> %s" file newname) (copy-file file newname)) ((file-directory-p file) (pb/message "%s => %s" file newname) (copy-directory file newname)))) (defun pb/package-name-completing-read () "Prompt for a package name, returning a symbol." (intern (completing-read "Package: " (package-build-recipe-alist)))) (defun pb/find-source-file (target files) "Search for source of TARGET in FILES." (let* ((entry (rassoc target files))) (when entry (car entry)))) (defun pb/find-package-file (name) "Return the filename of the most recently built package of NAME." (pb/archive-file-name (assoc name (package-build-archive-alist)))) (defun pb/package-buffer-info-vec () "Return a vector of package info. `package-buffer-info' returns a vector in older Emacs versions, and a cl struct in Emacs HEAD. This wrapper normalises the results." (let ((desc (package-buffer-info)) (keywords (lm-keywords-list))) (if (fboundp 'package-desc-create) (let ((extras (package-desc-extras desc))) (when (and keywords (not (assq :keywords extras))) ;; Add keywords to package properties, if not already present (push (cons :keywords keywords) extras)) (vector (package-desc-name desc) (package-desc-reqs desc) (package-desc-summary desc) (package-desc-version desc) extras)) ;; The regexp and the processing is taken from `lm-homepage' in Emacs 24.4 (let* ((page (lm-header "\\(?:x-\\)?\\(?:homepage\\|url\\)")) (homepage (if (and page (string-match "^<.+>$" page)) (substring page 1 -1) page)) extras) (when keywords (push (cons :keywords keywords) extras)) (when homepage (push (cons :url homepage) extras)) (vector (aref desc 0) (aref desc 1) (aref desc 2) (aref desc 3) extras))))) ;;; Public interface ;;;###autoload (defun package-build-archive (name) "Build a package archive for package NAME." (interactive (list (pb/package-name-completing-read))) (let* ((file-name (symbol-name name)) (rcp (or (cdr (assoc name (package-build-recipe-alist))) (error "Cannot find package %s" file-name))) (pkg-working-dir (file-name-as-directory (expand-file-name file-name package-build-working-dir)))) (unless (file-exists-p package-build-archive-dir) (pb/message "Creating directory %s" package-build-archive-dir) (make-directory package-build-archive-dir)) (pb/message "\n;;; %s\n" file-name) (let* ((version (package-version-join (version-to-list (or (package-build-checkout name rcp pkg-working-dir) (error "No valid package version found!"))))) (default-directory package-build-working-dir) (start-time (current-time)) (archive-entry (package-build-package (symbol-name name) version (pb/config-file-list rcp) pkg-working-dir package-build-archive-dir))) (pb/dump archive-entry (pb/entry-file-name archive-entry)) (when package-build-write-melpa-badge-images (pb/write-melpa-badge-image (symbol-name name) version package-build-archive-dir)) (pb/message "Built in %.3fs, finished at %s" (time-to-seconds (time-since start-time)) (current-time-string)) file-name))) ;;;###autoload (defun package-build-package (package-name version file-specs source-dir target-dir) "Create PACKAGE-NAME with VERSION. The information in FILE-SPECS is used to gather files from SOURCE-DIR. The resulting package will be stored as a .el or .tar file in TARGET-DIR, depending on whether there are multiple files. Argument FILE-SPECS is a list of specs for source files, which should be relative to SOURCE-DIR. The specs can be wildcards, and optionally specify different target paths. They extended syntax is currently only documented in the MELPA README. You can simply pass `package-build-default-files-spec' in most cases. Returns the archive entry for the package." (when (symbolp package-name) (setq package-name (symbol-name package-name))) (let ((files (package-build-expand-file-specs source-dir file-specs))) (unless (equal file-specs package-build-default-files-spec) (when (equal files (package-build-expand-file-specs source-dir package-build-default-files-spec nil t)) (pb/message "Note: this :files spec is equivalent to the default."))) (cond ((not version) (error "Unable to check out repository for %s" package-name)) ((= 1 (length files)) (pb/build-single-file-package package-name version (caar files) source-dir target-dir)) ((< 1 (length files)) (pb/build-multi-file-package package-name version files source-dir target-dir)) (t (error "Unable to find files matching recipe patterns"))))) (defun pb/build-single-file-package (package-name version file source-dir target-dir) (let* ((pkg-source (expand-file-name file source-dir)) (pkg-target (expand-file-name (concat package-name "-" version ".el") target-dir)) (pkg-info (pb/merge-package-info (pb/get-package-info pkg-source) package-name version))) (unless (string-equal (downcase (concat package-name ".el")) (downcase (file-name-nondirectory pkg-source))) (error "Single file %s does not match package name %s" (file-name-nondirectory pkg-source) package-name)) (when (file-exists-p pkg-target) (delete-file pkg-target)) (copy-file pkg-source pkg-target) (let ((enable-local-variables nil) (make-backup-files nil)) (with-current-buffer (find-file pkg-target) (pb/update-or-insert-version version) (pb/ensure-ends-here-line pkg-source) (write-file pkg-target nil) (condition-case err (pb/package-buffer-info-vec) (error (pb/message "Warning: %S" err))) (kill-buffer))) (pb/write-pkg-readme target-dir (pb/find-package-commentary pkg-source) package-name) (pb/archive-entry pkg-info 'single))) (defun pb/build-multi-file-package (package-name version files source-dir target-dir) (let* ((tmp-dir (file-name-as-directory (make-temp-file package-name t))) (pkg-dir-name (concat package-name "-" version)) (pkg-tmp-dir (expand-file-name pkg-dir-name tmp-dir)) (pkg-file (concat package-name "-pkg.el")) (pkg-file-source (or (pb/find-source-file pkg-file files) pkg-file)) (file-source (concat package-name ".el")) (pkg-source (or (pb/find-source-file file-source files) file-source)) (pkg-info (pb/merge-package-info (let ((default-directory source-dir)) (or (pb/get-pkg-file-info pkg-file-source) ;; some packages (like magit) provide name-pkg.el.in (pb/get-pkg-file-info (expand-file-name (concat pkg-file ".in") (file-name-directory pkg-source))) (pb/get-package-info pkg-source))) package-name version))) (pb/copy-package-files files source-dir pkg-tmp-dir) (pb/write-pkg-file (expand-file-name pkg-file (file-name-as-directory pkg-tmp-dir)) pkg-info) (pb/generate-info-files files source-dir pkg-tmp-dir) (pb/generate-dir-file files pkg-tmp-dir) (let ((default-directory tmp-dir)) (pb/create-tar (expand-file-name (concat package-name "-" version ".tar") target-dir) pkg-dir-name)) (let ((default-directory source-dir)) (pb/write-pkg-readme target-dir (pb/find-package-commentary pkg-source) package-name)) (delete-directory pkg-tmp-dir t nil) (pb/archive-entry pkg-info 'tar))) ;; In future we should provide a hook, and perform this step in a separate package. ;; Note also that it would be straightforward to generate the SVG ourselves, which would ;; save the network overhead. (defun pb/write-melpa-badge-image (package-name version target-dir) (pb/url-copy-file (concat "http://img.shields.io/badge/" (if package-build-stable "melpa stable" "melpa") "-" (url-hexify-string version) "-" (if package-build-stable "3e999f" "922793") ".svg") (expand-file-name (concat package-name "-badge.svg") target-dir) t)) ;;; Helpers for recipe authors (defvar package-build-minor-mode-map (let ((m (make-sparse-keymap))) (define-key m (kbd "C-c C-c") 'package-build-current-recipe) m) "Keymap for `package-build-minor-mode'.") (define-minor-mode package-build-minor-mode "Helpful functionality for building packages." nil " PBuild" package-build-minor-mode-map) ;;;###autoload (defun package-build-create-recipe (name fetcher) "Create a new recipe for package NAME using FETCHER." (interactive (list (intern (read-string "Package name: ")) (intern (let ((fetcher-types (mapcar #'symbol-name '(github git wiki bzr hg cvs svn)))) (completing-read "Fetcher: " fetcher-types nil t nil nil (car fetcher-types)))))) (let ((recipe-file (expand-file-name (symbol-name name) package-build-recipes-dir))) (when (file-exists-p recipe-file) (error "Recipe already exists")) (find-file recipe-file) (let* ((extra-params (cond ((eq 'github fetcher) '(:repo "USER/REPO")) ((eq 'wiki fetcher) '()) (t '(:url "SCM_URL_HERE")))) (template `(,name :fetcher ,fetcher ,@extra-params))) (insert (pp-to-string template)) (emacs-lisp-mode) (package-build-minor-mode) (goto-char (point-min))))) ;;;###autoload (defun package-build-current-recipe () "Build archive for the recipe defined in the current buffer." (interactive) (unless (and (buffer-file-name) (file-equal-p (file-name-directory (buffer-file-name)) package-build-recipes-dir)) (error "Buffer is not visiting a recipe")) (when (buffer-modified-p) (if (y-or-n-p (format "Save file %s? " buffer-file-name)) (save-buffer) (error "Aborting"))) (check-parens) (package-build-reinitialize) (let ((pkg-name (intern (file-name-nondirectory (buffer-file-name))))) (package-build-archive pkg-name) (package-build-dump-archive-contents) (let ((output-buffer-name "*package-build-result*")) (with-output-to-temp-buffer output-buffer-name (princ ";; Please check the following package descriptor.\n") (princ ";; If the correct package description or dependencies are missing,\n") (princ ";; then the source .el file is likely malformed, and should be fixed.\n") (pp (assoc pkg-name (package-build-archive-alist)))) (with-current-buffer output-buffer-name (emacs-lisp-mode) (view-mode))) (when (yes-or-no-p "Install new package? ") (package-install-file (pb/find-package-file pkg-name))))) (defun package-build-archive-ignore-errors (pkg) "Build archive for package PKG, ignoring any errors." (interactive (list (pb/package-name-completing-read))) (let* ((debug-on-error t) (debug-on-signal t) (pb/debugger-return nil) (debugger (lambda (&rest args) (setq pb/debugger-return (with-output-to-string (backtrace)))))) (condition-case err (package-build-archive pkg) (error (pb/message "%s" (error-message-string err)) nil)))) ;;;###autoload (defun package-build-all () "Build all packages in the `package-build-recipe-alist'." (interactive) (let ((failed (cl-loop for pkg in (mapcar 'car (package-build-recipe-alist)) when (not (package-build-archive-ignore-errors pkg)) collect pkg))) (if (not failed) (princ "\nSuccessfully Compiled All Packages\n") (princ "\nFailed to Build the Following Packages\n") (princ (mapconcat 'symbol-name failed "\n")) (princ "\n"))) (package-build-cleanup)) (defun package-build-cleanup () "Remove previously-built packages that no longer have recipes." (interactive) (let* ((known-package-names (mapcar 'car (package-build-recipe-alist))) (stale-archives (cl-loop for built in (pb/archive-entries) when (not (memq (car built) known-package-names)) collect built))) (mapc 'pb/remove-archive-files stale-archives) (package-build-dump-archive-contents))) (defun package-build-recipe-alist () "Retun the list of avalailable packages." (unless pb/recipe-alist-initialized (setq pb/recipe-alist (pb/read-recipes-ignore-errors) pb/recipe-alist-initialized t)) pb/recipe-alist) (defun package-build-archive-alist () "Return the archive list." (cdr (pb/read-from-file (expand-file-name "archive-contents" package-build-archive-dir)))) (defun package-build-reinitialize () "Forget any information about packages which have already been built." (interactive) (setq pb/recipe-alist-initialized nil)) (defun package-build-dump-archive-contents (&optional file-name) "Dump the list of built packages to FILE-NAME. If FILE-NAME is not specified, the default archive-contents file is used." (pb/dump (cons 1 (pb/archive-entries)) (or file-name (expand-file-name "archive-contents" package-build-archive-dir)))) (defun pb/archive-entries () "Read all .entry files from the archive directory and return a list of all entries." (let ((entries '())) (dolist (new (mapcar 'pb/read-from-file (directory-files package-build-archive-dir t ".*\.entry$")) entries) (let ((old (assq (car new) entries))) (when old (when (version-list-< (elt (cdr new) 0) (elt (cdr old) 0)) ;; swap old and new (cl-rotatef old new)) (pb/remove-archive-files old) (setq entries (remove old entries))) (add-to-list 'entries new))))) ;;; Exporting data as json (defun package-build-recipe-alist-as-json (file-name) "Dump the recipe list to FILE-NAME as json." (interactive) (with-temp-file file-name (insert (json-encode (package-build-recipe-alist))))) (defun pb/sym-to-keyword (s) "Return a version of symbol S as a :keyword." (intern (concat ":" (symbol-name s)))) (defun pb/pkg-info-for-json (info) "Convert INFO into a data structure which will serialize to JSON in the desired shape." (let* ((ver (elt info 0)) (deps (elt info 1)) (desc (elt info 2)) (type (elt info 3)) (props (when (> (length info) 4) (elt info 4)))) (list :ver ver :deps (apply 'append (mapcar (lambda (dep) (list (pb/sym-to-keyword (car dep)) (cadr dep))) deps)) :desc desc :type type :props props))) (defun pb/archive-alist-for-json () "Return the archive alist in a form suitable for JSON encoding." (apply 'append (mapcar (lambda (entry) (list (pb/sym-to-keyword (car entry)) (pb/pkg-info-for-json (cdr entry)))) (package-build-archive-alist)))) (defun package-build-archive-alist-as-json (file-name) "Dump the build packages list to FILE-NAME as json." (interactive) (with-temp-file file-name (insert (json-encode (pb/archive-alist-for-json))))) (provide 'package-build) ;; Local Variables: ;; coding: utf-8 ;; eval: (checkdoc-minor-mode 1) ;; End: ;;; package-build.el ends here