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package-build.el
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;;; package-build.el --- Tools for assembling a package archive
;; Copyright (C) 2011-2013 Donald Ephraim Curtis <dcurtis@milkbox.net>
;; Copyright (C) 2012-2014 Steve Purcell <steve@sanityinc.com>
;; Copyright (C) 2009 Phil Hagelberg <technomancy@gmail.com>
;; Author: Donald Ephraim Curtis <dcurtis@milkbox.net>
;; Created: 2011-09-30
;; Version: 0.1
;; Keywords: tools
;; Package-Requires: ((cl-lib "0.5"))
;; 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.
It performs some basic checks on the recipe to ensure that known
keys have values of the right types, and raises an error if that
is the not the case. If invalid combinations of keys are
supplied then errors will only be caught when an attempt is made
to build the recipe."
(let* ((pkg-info (pb/read-from-file file-name))
(pkg-name (car pkg-info))
(rest (cdr pkg-info)))
(cl-assert pkg-name)
(cl-assert (symbolp pkg-name))
(cl-assert (string= (symbol-name pkg-name) (file-name-nondirectory file-name))
nil
"Recipe '%s' contains mismatched package name '%s'"
(file-name-nondirectory file-name)
(car pkg-info))
(cl-assert rest)
(let* ((symbol-keys '(:fetcher))
(string-keys '(:url :repo :module :commit :branch))
(list-keys '(:files :old-names))
(all-keys (append symbol-keys string-keys list-keys)))
(dolist (thing rest)
(when (keywordp thing)
(cl-assert (memq thing all-keys) nil "Unknown keyword %S" thing)))
(cl-assert (plist-get rest :fetcher) nil ":fetcher is missing")
(dolist (key symbol-keys)
(let ((val (plist-get rest key)))
(when val
(cl-assert (symbolp val) nil "%s must be a list but is %S" key val))))
(dolist (key list-keys)
(let ((val (plist-get rest key)))
(when val
(cl-assert (listp val) nil "%s must be a list but is %S" key val ))))
(dolist (key string-keys)
(let ((val (plist-get rest key)))
(when val
(cl-assert (stringp val) nil "%s must be a string but is %S" key val )))))
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 ()