lisp/emacs-lisp/authors.el

   1 ;;; authors.el --- utility for maintaining Emacs' AUTHORS file -*-coding: iso-2022-7bit;-*-
   2
   3 ;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005,
   4 ;;   2006, 2007, 2008 Free Software Foundation, Inc.
   5
   6 ;; Author: Gerd Moellmann <gerd@gnu.org>
   7 ;; Maintainer: Kim F. Storm <storm@cua.dk>
   8 ;; Keywords: maint
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 3, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;; Use M-x authors RET to create an *Authors* buffer that can used as
  30 ;; or merged with Emacs' AUTHORS file.
  31
  32 ;;; Code:
  33
  34 (defvar authors-coding-system 'iso-2022-7bit
  35   "Coding system used in the AUTHORS file.")
  36
  37 (defconst authors-many-files 20
  38   "Maximum number of files for which to print individual information.
  39 If an author has modified more files, only the names of the most
  40 frequently modified files are printed and a count of the additional
  41 files.")
  42
  43 (defconst authors-aliases
  44   '(
  45     ("Andrew Csillag" "Drew Csillag")
  46     ("Anna M. Bigatti" "Anna Bigatti")
  47     ("Barry A. Warsaw" "Barry A. Warsaw, Century Computing, Inc."
  48      "Barry A. Warsaw, ITB" "Barry Warsaw")
  49     ("Bj\e,Av\e(Brn Torkelsson" "Bjorn Torkelsson")
  50     ("Brian Fox" "Brian J. Fox")
  51     ("Christoph Wedler" "Christoph.Wedler@sap.com")
  52     ("Daniel Pfeiffer" "<Daniel.Pfeiffer@Informatik.START.db.de>"
  53      "<Daniel.Pfeiffer@Informatik.START.dbp.de>")
  54     ("David Gillespie" "Dave Gillespie")
  55     ("David K\e,Ae\e(Bgedal" "David K..edal")
  56     ("David M. Koppelman" "David M. Koppelman, Koppel@Ee.Lsu.Edu"
  57      "David Koppelman")
  58     ("David M. Smith" "David Smith" "David M Smith")
  59     ("Ed L. Cashin" "Ed L Cashin")
  60     ("Edward M. Reingold" "Ed Reingold" "Edward M Reingold"
  61      "Reingold Edward M")
  62     ("Eli Zaretskii" "eliz")
  63     ("Emilio C. Lopes" "Emilio Lopes")
  64     ("Era Eriksson" "Era@Iki.Fi")
  65     ("Eric M. Ludlam" "Eric Ludlam")
  66     ("Eric S. Raymond" "Eric Raymond")
  67     ("Eric Youngdale" "(Eric Youngdale at youngdale@v6550c.nrl.navy.mil)")
  68     ("Francis J. Wright" "Dr Francis J. Wright" "Francis Wright")
  69     ("Fran\e,Ag\e(Bois Pinard" "Francois Pinard")
  70     ("Francesco Potort\e,Al\e(B" "Francesco Potorti" "Francesco Potorti`")
  71     ("Frederic Pierresteguy" "Fred Pierresteguy")
  72     ("Geoff Voelker" "voelker")
  73     ("Gerd M\e,Av\e(Bllmann" "Gerd Moellmann")
  74     ("Hallvard B. Furuseth" "Hallvard B Furuseth")
  75     ("Hrvoje Nik\e$,1!!\e(Bi\e$,1 '\e(B" "Hrvoje Niksic")
  76     (nil "(afs@hplb.hpl.hp.com)")
  77     (nil "<Use-Author-Address-Header@\\[127.1\\]>")
  78     (nil "Code Extracted")
  79     (nil "\\`FSF")
  80     (nil "ISO-2022-JP")
  81     ("Jaeyoun Chung" "Jae-youn Chung" "Jae-you Chung" "Chung Jae-youn")
  82     ("Jan Dj\e,Ad\e(Brv" "Jan D." "Jan Djarv")
  83     ("Jay K. Adams" "jka@ece.cmu.edu" "Jay Adams")
  84     ("J\e,Ai\e(Br\e,At\e(Bme Marant" "J\e,Ai\e(Br\e,At\e(Bme Marant" "Jerome Marant")
  85     ("Jens-Ulrik Holger Petersen" "Jens-Ulrik Petersen")
  86     ("Jeremy Bertram Maitin-Shepard" "Jeremy Maitin-Shepard")
  87     ("Johan Bockg\e,Ae\e(Brd" "Johan Bockgard")
  88     ("John W. Eaton" "John Eaton")
  89     ("Jonathan I. Kamens" "Jonathan Kamens")
  90     ("Joseph Arceneaux" "Joe Arceneaux")
  91     ("Juan Le\e,As\e(Bn Lahoz Garc\e,Am\e(Ba" "Juan-Leon Lahoz Garcia")
  92     ("K. Shane Hartman" "Shane Hartman")
  93     ("Kai Gro\e,A_\e(Bjohann" "Kai Grossjohann" "Kai Gro\e,A_\e(Bjohann"
  94      "Kai.Grossjohann@Cs.Uni-Dortmund.De"
  95      "Kai.Grossjohann@Gmx.Net")
  96     ("Karl Berry" "K. Berry")
  97     ("K\e,Aa\e(Broly L\e$,1 q\e(Brentey" "K\e,Aa\e(Broly L\e$,1 q\e(Brentey" "L\e$,1 q\e(Brentey K\e,Aa\e(Broly")
  98     ("Kazushi Marukawa" "Kazushi")
  99     ("Ken Manheimer" "Kenneth Manheimer")
 100     ("Kenichi Handa" "Ken'ichi Handa" "Kenichi HANDA")
 101     ("Kevin Greiner" "Kevin J. Greiner")
 102     ("Kim F. Storm" "Kim Storm")
 103     ("Kyle Jones" "Kyle E. Jones")
 104     ("Marcus G. Daniels" "Marcus Daniels")
 105     ("Mark D. Baushke" "Mark D Baushke")
 106     ("Agust\e,Am\e(Bn Mart\e,Am\e(Bn" "Agustin Martin")
 107     ("Martin Lorentzon" "Martin Lorentzson")
 108     ("Matt Swift" "Matthew Swift")
 109     ("Michael R. Mauger" "Michael Mauger")
 110     ("Michael D. Ernst" "Michael Ernst")
 111     ("Micha\e,Ak\e(Bl Cadilhac" "Michael Cadilhac")
 112     ("Michael I. Bushnell" "Michael I Bushnell" "Michael I. Bushnell, P/Bsg")
 113     ("Mikio Nakajima" "Nakajima Mikio")
 114     ("Paul Eggert" "eggert")
 115     ("Paul Reilly" "(pmr@legacy.pajato.com)")
 116     ("Pavel Jan\e,Am\e(Bk" "Pavel Jan\e,Am\e(Bk Ml." "Pavel Jan\e,Am\e(Bk" "Pavel@Janik.Cz")
 117     ("Per Abrahamsen" "Per Abhiddenware")
 118     ("Peter S. Galbraith" "Peter Galbraith")
 119     ("Peter Runestig" "Peter 'luna' Runestig")
 120     ("Peter S. Galbraith" "Peter S Galbraith")
 121     ("Richard M. Stallman" "Richard M. Stallman,,," "Richard Stallman"
 122      "rms" "rms@gnu.org")
 123     ("Robert J. Chassell" "Bob Chassell")
 124     ("Roland B. Roberts" "Roland B Roberts" "Roland Roberts")
 125     ("Rui-Tao Dong" "Rui-Tao Dong ~{6-Hpln~}")
 126     ("Sacha Chua" "Sandra Jean Chua")
 127     ("Sam Steingold" "Sam Shteingold")
 128     ("Satyaki Das" "Indexed search by Satyaki Das")
 129     ("Stefan Monnier" "Stefan")
 130     ("Stephen A. Wood" "(saw@cebaf.gov)")
 131     ("Steven L. Baur" "SL Baur" "Steven L Baur")
 132     ("Takaaki Ota" "Tak Ota")
 133     ("Takahashi Naoto" "Naoto Takahashi")
 134     ("Teodor Zlatanov" "Ted Zlatanov")
 135     ("Torbj\e,Av\e(Brn Axelsson" "Torbjvrn Axelsson")
 136     ("Torbj\e,Av\e(Brn Einarsson" "Torbj.*rn Einarsson")
 137     ("Toru Tomabechi" "Toru Tomabechi,")
 138     ("Vincent Del Vecchio" "Vince Del Vecchio")
 139     ("William M. Perry" "Bill Perry")
 140     ("Wlodzimierz Bzyl" "W.*dek Bzyl")
 141     ("Yutaka NIIBE" "NIIBE Yutaka")
 142     )
 143   "Alist of author aliases.
 144
 145 Each entry is of the form (REALNAME REGEXP...).  If an author's name
 146 matches one of the REGEXPs, use REALNAME instead.
 147 If REALNAME is nil, ignore that author.")
 148
 149
 150 (defvar authors-public-domain-files
 151   '("auto-show\\.el"
 152     "form-d2\\.el"
 153     "emerge\\.el"
 154     "unused\\.el"
 155     "vi\\.el"
 156     "feedmail\\.el"
 157     "mailpost\\.el"
 158     "hanoi\\.el"
 159     "meese\\.el"
 160     "studly\\.el"
 161     "modula2\\.el")
 162   "List of regexps matching files for which the FSF doesn't need papers.")
 163
 164
 165 (defvar authors-obsolete-files-regexps
 166   '("vc-\\*\\.el$"
 167     "spec.txt$"
 168     "vc-\\(rcs\\|cvs\\|sccs\\)-hooks\\.el$")
 169   "List of regexps matching obsolete files.
 170 Changes to files matching one of the regexps in this list are not
 171 listed.")
 172
 173 (defconst authors-ignored-files
 174   '("external-lisp"
 175     "lock" "share-lib" "local-lisp"
 176     "noleim-Makefile.in"
 177     "NEWS" "PROBLEMS" "FAQ" "AUTHORS" "FOR-RELEASE" "TODO")
 178   "List of files and directories to ignore.
 179 Changes to files in this list are not listed.")
 180
 181 (defconst authors-fixed-entries
 182   '(("Richard M. Stallman" :wrote "[The original GNU Emacs and numerous files]")
 183     ("Joseph Arceneaux" :wrote "xrdb.c")
 184     ("Blitz Product Development Corporation" :wrote "ispell.el")
 185     ("Frank Bresz" :wrote "diff.el")
 186     ("David M. Brown" :wrote "array.el")
 187     ("Gary Byers" :changed "xenix.h")
 188     ("Shawn M. Carey" :wrote "freebsd.h")
 189     ("Eric Decker"  :changed "hp9000s800.h" "hpux.h" "sysdep.c")
 190     ("Lawrence R. Dodd" :wrote "dired-x.el")
 191     ("Viktor Dukhovni" :wrote "unexsunos4.c")
 192     ("Paul Eggert" :wrote "rcs2log" "vcdiff")
 193     ("Fred Fish" :changed "unexec.c")
 194     ("Tim Fleehart" :wrote "makefile.nt")
 195     ("Keith Gabryelski" :wrote "hexl.c")
 196     ("Kevin Gallagher" :wrote "flow-ctrl.el")
 197     ("Howard Gayle" :wrote "disp-table.el" "iso-syntax.el" "casetab.c")
 198     ("Stephen Gildea" :wrote "refcard.tex" "mh-funcs.el" "mh-pick.el")
 199     ("David Gillespie" :wrote "cl.texinfo")
 200     ("Hewlett-Packard" :changed "emacsclient.c" "emacsserver.c"
 201      "server.el" "keyboard.c")
 202     ("Thomas Horsley" :wrote "cxux.h" "cxux7.h")
 203     ("Indiana University Foundation" :changed "buffer.c" "buffer.h"
 204      "indent.c" "search.c" "xdisp.c" "region-cache.c" "region-cache.h")
 205     ("International Business Machines" :changed "emacs.c" "fileio.c"
 206      "ibmrt.h" "process.c" "sysdep.c" "unexec.c" "ibmrt-aix.h")
 207     ("Ishikawa Chiaki" :changed "aviion.h" "dgux.h")
 208     ("Michael K. Johnson" :changed "configure.in" "emacs.c" "intel386.h"
 209      "mem-limits.h" "process.c" "template.h" "sysdep.c" "syssignal.h" "systty.h" "unexec.c"
 210       "ymakefile" "linux.h")
 211     ("Kyle Jones" :wrote "mldrag.el")
 212     ("Henry Kautz" :wrote "bib-mode.el")
 213     ("Joseph M. Kelsey" :changed "fileio.c" "vms-pwd.h" "vmsfns.c" "dir.h"
 214      "uaf.h")
 215     ("Sam Kendall" :changed "etags.c" "etags.el")
 216     ("Richard King" :wrote "backquote.el" "userlock.el" "filelock.c")
 217     ("Larry Kolodney" :wrote "cvtmail.c")
 218     ("Sebastian Kremer" :changed "add-log.el")
 219     ("Mark Lambert" :changed "process.c" "process.h")
 220     ("Aaron Larson" :changed "bibtex.el")
 221     ("James R. Larus" :wrote "mh-e.el")
 222     ("Lars Lindberg" :changed "dabbrev.el" :wrote "imenu.el")
 223     ("Lucid, Inc." :changed "bytecode.c" "byte-opt.el" "byte-run.el"
 224      "bytecomp.el" "delsel.el" "disass.el" "faces.el" "font-lock.el"
 225      "lmenu.el" "lselect.el" "mailabbrev.el" "select.el" "xfaces.c"
 226      "xselect.c")
 227     ("MCC" :changed "etags.c" "emacsclient.c" "emacsserver.c" "movemail.c"
 228      "rmail.el" "rmailedit.el" "rmailkwd.el"
 229      "rmailmsc.el" "rmailout.el" "rmailsum.el" "scribe.el"
 230      "server.el" "lisp.h" "sysdep.c" "unexec.c" :wrote "xmenu.c")
 231     ("Niall Mansfield" :changed "etags.c")
 232     ("Brian Marick" :wrote "hideif.el")
 233     ("Marko Kohtala" :changed "info.el")
 234     ("Sidney Markowitz" :changed "doctor.el")
 235     ("Richard Mlynarik" :wrote "env.c" "ehelp.el")
 236     ("Mosur Mohan" :changed "etags.c")
 237     ("Jeff Morgenthaler" :changed "flow-ctrl.el" "vt200.el" "vt201.el"
 238      "vt220.el" "vt240.el")
 239     ("Motorola" :changed "buff-menu.el")
 240     ("Hiroshi Nakano" :changed "ralloc.c")
 241     ("Sundar Narasimhan" :changed "rnewspost.el")
 242     ("NeXT, Inc." :wrote "unexnext.c")
 243     ("Mark Neale" :changed "fortran.el")
 244     ("Martin Neitzel" :changed "sc.el")
 245     ("Andrew Oram" :changed "miscellaneous changes to files in man/"
 246      "man/calendar.texi")
 247     ("Frederic Pierresteguy" :wrote "widget.c")
 248     ("Michael D. Prange" :changed "tex-mode.el")
 249     ("Paul Reilly" :wrote "gux5-4r2.h" "dgux5-4r3.h")
 250     ("Roland B. Roberts" :changed "files.el" "sort.el" "vmsproc.el"
 251      "buffer.h" "callproc.c" "dired.c" "process.c" "sysdep.c" "systty.h"
 252      "vmspaths.h" "build.com" "compile.com" "kepteditor.com" "precomp.com"
 253      :wrote "logout.com" "mailemacs.com")
 254     ("Guillermo J. Rozas" :wrote "fakemail.c")
 255     ("Wolfgang Rupprecht" :changed "lisp-mode.el" "loadup.el"
 256      "sort.el" "alloc.c" "callint.c"
 257      "config.h.in" "crt0.c" "data.c" "fns.c"
 258      "lisp.h" "lread.c" "sun3.h"
 259      "print.c" "ymakefile" :wrote "float-sup.el" "floatfns.c")
 260     ("Schlumberger Technology Corporation" :changed "gud.el")
 261     ("Gregor Schmid" :wrote "tcl-mode.el")
 262     ("Rainer Schoepf" :wrote "alpha.h" "unexalpha.c")
 263     ("William Sommerfeld" :wrote "emacsclient.c" "emacsserver.c" "scribe.el")
 264     ("Leigh Stoller" :changed "emacsclient.c" "emacsserver.c" "server.el")
 265     ("Steve Strassman" :wrote "spook.el")
 266     ("Shinichirou Sugou" :changed "etags.c")
 267     ("Sun Microsystems, Inc" :changed "emacsclient.c" "emacsserver.c"
 268      "server.el" :wrote "emacs.icon" "emacstool.1" "emacstool.c" "sun-curs.el"
 269      "sun-fns.el" "sun-mouse.el" "sun.el" "sunfns.c")
 270     ("Kayvan Sylvan" :changed "sc.el")
 271     ("Spencer Thomas" :changed "emacsclient.c" "emacsserver.c" "server.el"
 272      "dabbrev.el" "unexec.c" "tcp.c" "gnus.texi")
 273     ("Jonathan Vail" :changed "vc.el")
 274     ("James Van Artsdalen" :changed "usg5-4.h" "unexec.c")
 275     ("Geoff Voelker" :wrote "src/makefile.nt" "lisp/makefile.nt" "winnt.el"
 276      "nt.c" "nt.h" "ntheap.c" "ntheap.h" "ntinevt.c"
 277      "ntproc.c" "ntterm.c" "windowsnt.h")
 278     ("Morten Welinder" :wrote "dosfns.c" "[many MSDOS files]" "msdos.h")
 279     ("Pace Willisson" :wrote "ispell.el")
 280     ("Garrett Wollman" :changed "sendmail.el")
 281     ("Dale R. Worley" :changed "mail-extr.el")
 282     ("Jamie Zawinski" :changed "bytecode.c" :wrote "disass.el" "tar-mode.el"))
 283   "Actions taken from the original, manually (un)maintained AUTHORS file.")
 284
 285
 286 (defconst authors-valid-file-names
 287   '("aclocal.m4"
 288     "makedist.bat"
 289     "make-delta")
 290   "File names which are valid, but no longer exists (or cannot be
 291 found) in the repository.")
 292
 293 (defconst authors-renamed-files-alist
 294   '(("nt.c" . "w32.c") ("nt.h" . "w32.h")
 295     ("ntheap.c" . "w32heap.c") ("ntheap.h" . "w32heap.h")
 296     ("ntinevt.c" . "w32inevt.c") ("ntinevt.h" . "w32inevt.h")
 297     ("ntproc.c" . "w32proc.c")
 298     ("w32console.c" . "w32term.c")
 299     ("unexnt.c" . "unexw32.c")
 300     ("s/windowsnt.h" . "s/ms-w32.h")
 301     ("config.emacs" . "configure")
 302     ("GETTING.GNU.SOFTWARE" . "FTP")
 303     ("leim-Makefile" . "leim/Makefile")
 304     ("leim-Makefile.in" . "leim/Makefile.in")
 305     ("emacs-lisp/testcover-ses.el" . "tcover-ses.el")
 306     ("emacs-lisp/testcover-unsafep.el" . "tcover-unsafep.el")
 307     ("INSTALL-CVS" . "INSTALL.CVS")
 308     )
 309   "Alist of files which have been renamed during their lifetime.
 310 Elements are (OLDNAME . NEWNAME).")
 311
 312 (defconst authors-renamed-files-regexps
 313   '(("^m/m-\\(.*\\.h\\)$" . "m/\\1")
 314     ("^m-\\(.*\\.h\\)$" . "\\1")
 315     ("^s/s-\\(.*\\.h\\)$" . "s/\\1")
 316     ("^s-\\(.*\\.h\\)$" . "\\1")
 317     ("^s/[-.a-zA-Z0-9_]+\\.h$" . t)
 318     ("\\(.*\\)\\.cmd$" . "\\1.bat")
 319     ("\\.bat$" . t)
 320     ("\\.[ch]$" . t)
 321     ("\\.el$" . t)
 322     ("\\.ps$" . t)
 323     ("\\.texi?$" . t)
 324     ("\\.texinfo$" . t)
 325     ("\\.xml?$" . t)
 326     ("\\.x[pb]m$" . t)
 327     ("\\.[xp]bm$" . t)
 328     ("^paths\\." . t)
 329     ("^install\\." . t)
 330     )
 331   "List regexps and rewriting rules for renamed files.
 332 Elements are (REGEXP . REPLACE).  If REPLACE is a string, the file
 333 name matching REGEXP is replaced by REPLACE using `replace-string'.
 334 Otherwise, the file name is accepted as is.")
 335
 336 (defvar authors-checked-files-alist)
 337 (defvar authors-invalid-file-names)
 338
 339 (defun authors-canonical-file-name (file log-file pos author)
 340   "Return canonical file name for FILE found in LOG-FILE at POS for AUTHOR.
 341 Checks whether FILE is a valid (existing) file name, has been renamed,
 342 or is on the list of removed files.  Returns the non-diretory part of
 343 the file name."
 344   (let ((entry (assoc file authors-checked-files-alist))
 345         relname
 346         valid)
 347     (if entry
 348         (cdr entry)
 349       (setq relname (file-name-nondirectory file))
 350       (if (or (member relname authors-valid-file-names)
 351               (file-exists-p file)
 352               (file-exists-p relname)
 353               (file-exists-p (concat "etc/" relname)))
 354           (setq valid relname)
 355         (setq valid (assoc file authors-renamed-files-alist))
 356         (if valid
 357             (setq valid (cdr valid))
 358           (let ((rules authors-renamed-files-regexps))
 359             (while rules
 360               (if (string-match (car (car rules)) file)
 361                   (setq valid (if (stringp (cdr (car rules)))
 362                                   (file-name-nondirectory
 363                                    (replace-match (cdr (car rules)) t nil file))
 364                                 relname)
 365                         rules nil))
 366               (setq rules (cdr rules))))))
 367       (setq authors-checked-files-alist
 368             (cons (cons file valid) authors-checked-files-alist))
 369       (unless (or valid
 370                   (string-match "[*]" file)
 371                   (string-match "^[0-9.]+$" file))
 372         (setq authors-invalid-file-names
 373               (cons (format "%s:%d: unrecognized `%s' for %s"
 374                             log-file
 375                             (1+ (count-lines (point-min) pos))
 376                             file author)
 377                     authors-invalid-file-names)))
 378       valid)))
 379
 380 (defun authors-add-fixed-entries (table)
 381   "Add actions from `authors-fixed-entries' to TABLE."
 382   (dolist (entry authors-fixed-entries)
 383     (let ((author (car entry))
 384           action)
 385       (dolist (item (cdr entry))
 386         (if (symbolp item)
 387             (setq action item)
 388           (authors-add author item action table))))))
 389
 390
 391 (defun authors-obsolete-file-p (file)
 392   "Return non-nil if FILE is obsolete.
 393 FILE is considered obsolete if it matches one of the regular expressions
 394 from `authors-obsolete-files-regexps'."
 395   (let (obsolete-p
 396         (regexps authors-obsolete-files-regexps))
 397     (while (and regexps (not obsolete-p))
 398       (setq obsolete-p (string-match (car regexps) file)
 399             regexps (cdr regexps)))
 400     obsolete-p))
 401
 402
 403 (defun authors-add (author file action table)
 404   "Record that AUTHOR worked on FILE.
 405 ACTION is a keyword symbol describing what he did.  Record file,
 406 author and what he did in hash table TABLE.  See the description of
 407 `authors-scan-change-log' for the structure of the hash table."
 408   (unless (or (member file authors-ignored-files)
 409               (authors-obsolete-file-p file)
 410               (equal author ""))
 411     (let* ((value (gethash author table))
 412            (entry (assoc file value))
 413            slot)
 414       (if (null entry)
 415           (puthash author (cons (list file (cons action 1)) value) table)
 416         (if (setq slot (assoc action (cdr entry)))
 417             (setcdr slot (1+ (cdr slot)))
 418           (nconc entry (list (cons action 1))))))))
 419
 420
 421 (defun authors-canonical-author-name (author)
 422   "Return a canonicalized form of AUTHOR, an author name.
 423 If AUTHOR has an alias, use that.  Remove email addresses.  Capitalize
 424 words in the author's name."
 425   (let* ((aliases authors-aliases)
 426          regexps realname)
 427     (while aliases
 428       (setq realname (car (car aliases))
 429             regexps (cdr (car aliases))
 430             aliases (cdr aliases))
 431       (while regexps
 432         (if (string-match (car regexps) author)
 433             (setq author realname
 434                   regexps nil
 435                   aliases nil)
 436           (setq regexps (cdr regexps))))))
 437   (when author
 438     (setq author (replace-regexp-in-string "[ \t]*[(<].*$" "" author))
 439     (setq author (replace-regexp-in-string "\`[ \t]+" "" author))
 440     (setq author (replace-regexp-in-string "[ \t]+$" "" author))
 441     (setq author (replace-regexp-in-string "[ \t]+" " " author))
 442     (unless (string-match "[-, \t]" author)
 443       (setq author ""))
 444     (capitalize author)))
 445
 446 (defun authors-scan-change-log (log-file table)
 447   "Scan change log LOG-FILE for author information.
 448
 449 For each change mentioned in the log, add an entry to hash table TABLE
 450 under the author's canonical name.
 451
 452 Keys of TABLE are author names.  Values are alists of entries (FILE
 453 \(ACTION . COUNT) ...).  FILE is one file the author worked on.  The
 454 rest of the entry is a list of keyword symbols describing what he did
 455 with the file and the number of each action.
 456
 457 :wrote          means the author wrote the file
 458 :changed        means he changed the file COUNT times."
 459
 460   (let* ((enable-local-variables :safe)
 461          (enable-local-eval nil)
 462          (existing-buffer (get-file-buffer log-file))
 463          (buffer (find-file-noselect log-file))
 464          author file pos)
 465     (save-excursion
 466       (set-buffer buffer)
 467       (save-restriction
 468         (widen)
 469         (goto-char (point-min))
 470         (while (re-search-forward "^[0-9]\\|^[ \t]+\\* " nil t)
 471           (beginning-of-line)
 472           (setq pos (point))
 473           (cond ((looking-at "^[0-9]+-[0-9]+-[0-9]+")
 474                  (skip-chars-forward " \t+:0-9-")
 475                  (setq author (buffer-substring-no-properties
 476                                (point) (line-end-position)))
 477                  (setq author (authors-canonical-author-name author))
 478                  (forward-line 1))
 479                 ((looking-at "^[ \t]+\\*")
 480                  (let ((line (buffer-substring-no-properties
 481                               (match-end 0) (line-end-position))))
 482                    (while (and (not (string-match ":" line))
 483                                (forward-line 1)
 484                                (not (looking-at ":\\|^[ \t]*$")))
 485                      (setq line (concat line
 486                                         (buffer-substring-no-properties
 487                                          (line-beginning-position)
 488                                          (line-end-position)))))
 489                    (when (string-match ":" line)
 490                      (setq line (substring line 0 (match-beginning 0)))
 491                      (setq line (replace-regexp-in-string "[[(<{].*$" "" line))
 492                      (setq line (replace-regexp-in-string "," "" line))
 493                      (dolist (file (split-string line))
 494                        (when (setq file (authors-canonical-file-name file log-file pos author))
 495                          ;;(message "%s changed %s" author file)
 496                          (authors-add author file :changed table))))
 497                    (forward-line 1)))))))
 498     (unless existing-buffer
 499       (kill-buffer buffer))))
 500
 501
 502 (defun authors-scan-el (file table)
 503   "Scan Lisp file FILE for author information.
 504 TABLE is a hash table to add author information to."
 505   (let* ((existing-buffer (get-file-buffer file))
 506          (enable-local-variables :safe)
 507          (enable-local-eval nil)
 508          (buffer (find-file-noselect file)))
 509     (save-excursion
 510       (set-buffer buffer)
 511       (save-restriction
 512         (widen)
 513         (goto-char (point-min))
 514         (while (and (re-search-forward
 515                      "^;+[ \t]*\\(Author\\|Commentary\\):[ \t]*" nil t)
 516                     (not (string= (match-string 1) "Commentary")))
 517           ;; Some entries contain a year range in front of the
 518           ;; author's name.
 519           (skip-chars-forward "-0-9 \t")
 520           (let ((author (buffer-substring-no-properties
 521                          (point) (line-end-position))))
 522             (setq author (authors-canonical-author-name author))
 523             (setq file (file-name-nondirectory file))
 524             (authors-add author file :wrote table)))))
 525     (unless existing-buffer
 526       (kill-buffer buffer))))
 527
 528
 529 (defun authors-public-domain-p (file)
 530   "Return t if FILE is a file that was put in public domain."
 531   (let ((public-domain-p nil)
 532         (list authors-public-domain-files))
 533     (while (and list (not public-domain-p))
 534       (when (string-match (car list) file)
 535         (setq public-domain-p t))
 536       (setq list (cdr list)))
 537     public-domain-p))
 538
 539 (defvar authors-author-list)
 540
 541 (defun authors-add-to-author-list (author changes)
 542   "Insert information about AUTHOR's work on Emacs into `authors-author-list'.
 543 CHANGES is an alist of entries (FILE (ACTION . COUNT) ...), as produced by
 544 `authors-scan-change-log'.
 545 The element added to `authors-author-list' is (AUTHOR WROTE CHANGED), where
 546 WROTE and CHANGED are lists of the files written and changed by AUTHOR."
 547   (when author
 548     (let ((nchanged 0)
 549           wrote-list
 550           changed-list)
 551       (dolist (change changes)
 552         (let ((actions (cdr change))
 553               (file (car change))
 554               slot)
 555           (if (assq :wrote actions)
 556               (setq wrote-list
 557                     (cons
 558                      (if (authors-public-domain-p file)
 559                          (concat file " (public domain)")
 560                        file)
 561                      wrote-list))
 562             (setq changed-list
 563                   (cons (cons file (cdr (assq :changed actions)))
 564                         changed-list)))))
 565       (if wrote-list
 566           (setq wrote-list (sort wrote-list 'string-lessp)))
 567       (when changed-list
 568         (setq changed-list (sort changed-list
 569                                  (lambda (a b)
 570                                    (if (= (cdr a) (cdr b))
 571                                        (string-lessp (car a) (car b))
 572                                      (> (cdr a) (cdr b))))))
 573         (setq nchanged (length changed-list))
 574         (setq changed-list (mapcar 'car changed-list)))
 575       (if (> (- nchanged authors-many-files) 2)
 576           (setcdr (nthcdr authors-many-files changed-list)
 577                   (list (format "and %d other files" (- nchanged authors-many-files)))))
 578       (setq authors-author-list
 579             (cons (list author wrote-list changed-list)
 580                   authors-author-list)))))
 581
 582 (defun authors (root)
 583   "Extract author information from change logs and Lisp source files.
 584 ROOT is the root directory under which to find the files.  If called
 585 interactively, ROOT is read from the minibuffer.
 586 Result is a buffer *Authors* containing authorship information, and a
 587 buffer *Authors Errors* containing references to unknown files."
 588   (interactive "DEmacs source directory: ")
 589   (setq root (expand-file-name root))
 590   (let ((logs (process-lines find-program root "-name" "ChangeLog*"))
 591         (table (make-hash-table :test 'equal))
 592         (buffer-name "*Authors*")
 593         authors-checked-files-alist
 594         authors-invalid-file-names)
 595     (authors-add-fixed-entries table)
 596     (unless (file-exists-p (expand-file-name "src/emacs.c" root))
 597       (error "Not the root directory of Emacs: %s" root))
 598     (dolist (log logs)
 599       (when (string-match "ChangeLog\\(.[0-9]+\\)?$" log)
 600         (message "Scanning %s..." log)
 601         (authors-scan-change-log log table)))
 602     (let ((els (process-lines find-program root "-name" "*.el")))
 603       (dolist (file els)
 604         (message "Scanning %s..." file)
 605         (authors-scan-el file table)))
 606     (message "Generating buffer %s..." buffer-name)
 607     (set-buffer (get-buffer-create buffer-name))
 608     (erase-buffer)
 609     (set-buffer-file-coding-system authors-coding-system)
 610     (insert
 611 "Many people have contributed code included in the Free Software
 612 Foundation's distribution of GNU Emacs.  To show our appreciation for
 613 their public spirit, we list here in alphabetical order a condensed
 614 list of their contributions.\n")
 615     (let (authors-author-list a)
 616       (maphash #'authors-add-to-author-list table)
 617       (setq authors-author-list
 618             (sort authors-author-list
 619                   (lambda (a b) (string-lessp (car a) (car b)))))
 620       (dolist (a authors-author-list)
 621         (let ((author (car a))
 622               (wrote (nth 1 a))
 623               (changed (nth 2 a))
 624               file)
 625         (insert "\n" author ": ")
 626         (when wrote
 627           (insert "wrote")
 628           (dolist (file wrote)
 629             (if (> (+ (current-column) (length file)) 72)
 630               (insert "\n "))
 631             (insert " " file))
 632           (insert "\n"))
 633         (when changed
 634           (if wrote
 635               (insert "and "))
 636           (insert "changed")
 637           (dolist (file changed)
 638             (if (> (+ (current-column) (length file)) 72)
 639                 (insert "\n "))
 640             (insert " " file))
 641           (insert "\n")))))
 642     (insert "\nLocal" " Variables:\ncoding: "
 643             (symbol-name authors-coding-system) "\nEnd:\n")
 644     (message "Generating buffer %s... done" buffer-name)
 645     (unless noninteractive
 646       (when authors-invalid-file-names
 647         (with-current-buffer (get-buffer-create "*Authors Errors*")
 648           (erase-buffer)
 649           (set-buffer-file-coding-system authors-coding-system)
 650           (insert "Unrecognized file entries found:\n\n")
 651           (mapc (lambda (f) (if (not (string-match "^[A-Za-z]+$" f)) (insert f "\n")))
 652                 (sort authors-invalid-file-names 'string-lessp))
 653           (goto-char (point-min))
 654           (compilation-mode)
 655           (message "Errors were found.  See buffer %s" (buffer-name))))
 656       (pop-to-buffer buffer-name))))
 657
 658
 659 (defun batch-update-authors ()
 660   "Produce an AUTHORS file.
 661 Call this function in batch mode with two command line arguments FILE
 662 and ROOT.  FILE is the file to write, ROOT is the root directory of
 663 the Emacs source tree, from which to build the file."
 664   (unless noninteractive
 665     (error "`batch-update-authors' is to be used only with -batch"))
 666   (when (/= (length command-line-args-left) 2)
 667     (error "Call `batch-update-authors' with the name of the file to write"))
 668   (let* ((file (pop command-line-args-left))
 669          (root (pop command-line-args-left)))
 670     (authors root)
 671     (write-file file)))
 672
 673 (provide 'authors)
 674
 675 ;; arch-tag: 659d5900-5ff2-43b0-954c-a315cc1e4dc1
 676 ;;; authors.el ends here