4 $SIG{__WARN__} = sub { die @_; };
6 # xxx much of the comment below is TODO
10 # .../commitid.scad.pl [OPTION...] [STRING...] >commitid.scad.new \
11 # && mv -f commitid.scad.new commitid.scad
15 # --git generate git commit indications, as shown below
16 # (this is the default if no strings are requested with -t)
19 # generate git commit indication based on commit object only
20 # (ie avoid counting commits)
22 # -i do not generate `+' if git-untracked files are present
25 # generate a form FORM containing TEXT
26 # TEXT can contain newlines (final newline usually undesirable)
27 # if FORM not specified, generates Arg0 Arg1 Arg2 in sequence
28 # character set is SPC 0-9 a-f + *
30 # We generate a physical indication of which commit was used.
32 # We provide for scaling factors with dynamic variables:
33 # $Commitid_pixelsz if not set, we use 0.8 } multiplied
34 # $Commitid_scale if not set, we use 1.0 } together
35 # $Commitid_depth if not set, we use xy pixel size from above / 2
36 # $Commitid_depth_scale if not set, we use 1.0 (multiplies depth above)
37 # $Commitid_max_best_scale if not set, we use 2.0 (max mult of xy in Best)
39 # For each form we have
41 # module Commitid_Form_2D() { ... }
42 # module Commitid_Form() { ... }
43 # function Commitid_Form_sz() => [ x, y ]
45 # These have their origin in the bottom left corner. The 3D model
46 # is a positive, has its origin halfway through, and is twice the
47 # depth in height, so it can be added or subtracted.
51 # function Commitid_pixelsz() // $Commitid_pixelsz * $Commitid_scale
52 # function Commitid_depth() // see above
54 # We can generate these forms:
57 # if tree is dirty, * is suffixed or prefixed to count or commitid
58 # if tree has untracked files, + is added
59 # (where it is added depends on the Form; in any case it does not
60 # change the size, but steals space from digits)
62 # Small2 Small3 ... Small10:
63 # git rev-list --first-parent --count HEAD
64 # typically 3-4 characters but we allow for up to 6
65 # padded with zeroes; if too long we reduce mod 10^n
66 # eg if the count is 123456
68 # Small8 __123456 (where _ are spaces)
70 # Small2S Small4S ... Small10S:
72 # same but split into two lines (S) or three lines (T) eg
73 # Small4S 45 Small6T _3
77 # Git2 Git3 ... Git10:
78 # Git4S Git6S ... Git10S:
80 # git-rev-parse HEAD (prefix of requested length)
81 # eg if the commitid is abcdef0123...
84 # Full4 Full6 ... Full20:
85 # git-rev-list --first-parent --count HEAD
89 # Full6 abcdef Full8 abcdef01
92 # Full6T Full9T ... Full30T
93 # as Full but commit is split over two lines
94 # for a 3-line message; eg
102 # Strings passed on command line
104 sub p { print @_ or die $!; }
107 // *** AUTOGENERATED - DO NOT EDIT *** //
108 function Commitid_pixelsz() =
109 ($Commitid_pixelsz ? $Commitid_pixelsz : 0.8) *
110 ($Commitid_scale ? $Commitid_scale : 1.0);
111 function Commitid_depth() =
112 ($Commitid_depth ? $Commitid_depth : Commitid_pixelsz()/2) *
113 ($Commitid_depth_scale ? $Commitid_depth_scale : 1.0);
114 function Commitid__scale() =
115 Commitid_pixelsz() / 0.2;
120 my $chrx = sprintf '%#x', ord $chr;
121 return "Commitid__chr_$chrx";
124 our $gtm_demo_i = -1;
128 sub gentextmodule_demo_start_batch () {
133 sub gentextmodule ($@) {
134 my ($form, @lines) = @_;
135 my $modb = "Commitid_$form";
136 p "module ${modb}_2D(){\n";
137 p " // |$_|\n" foreach @lines;
138 p " scale(Commitid__scale()){\n";
141 foreach my $line (@lines) {
144 foreach my $chr (split //, $line) {
145 p sprintf " translate([%d * 0.8, %d * 1.2]) %s();\n",
146 $x, $y, chrmodname $chr
150 $cols = $x if $x > $cols;
154 p "module ${modb}(){\n";
155 p " d=Commitid_depth();\n";
156 p " translate([0,0,-d]) linear_extrude(height=d*2) ${modb}_2D();\n";
159 p sprintf "function %s_sz() = Commitid__scale() * 0.1 * [ %d, %d ];\n",
160 $modb, 2 * ($cols * 4 - 1), 2 * (@lines * 6 - 1);
162 push @gtm_demo_o, <<END;
163 translate([$gtm_demo_i * st[0], $gtm_demo_j * st[1]]) {
165 color("blue") translate([-e,-e]) square(${modb}_sz() + 2*[e,e]);
166 square(${modb}_sz());
180 last if %cellmap && !m/\S/;
190 my @chrs = split / /, $_;
191 <DATA> !~ m/\S/ or die;
192 foreach my $row (reverse 0..4) {
203 foreach my $chr (@chrs) {
204 s{^ }{} or die "$chr $_ ?";
205 foreach my $col (0..2) {
209 my $f = $cellmap{$&};
211 $f =~ s/\b\d/ sprintf '%05d', $col*2000 + $&*1025 /ge;
212 $f =~ s/\d\b/ sprintf '%05d', $row*2000 + $&*1025 /ge;
213 push @{ $chrpolys{$chr} }, [ split / /, $f ];
225 foreach my $chr (sort keys %chrpolys) {
226 my $mod = chrmodname $chr;
227 p "module $mod () {\n";
228 foreach my $poly (@{ $chrpolys{$chr} }) {
231 foreach my $pt (@$poly) {
233 $pt =~ s{\d{5}}{$&,};
234 $pt =~ s{\b\d}{$&.}g;
243 @demo = reverse $demo =~ m{.{1,$democols}}go;
248 our $do_git; # contains may chars 'c' (count) and/or 'o' (object)
249 our $do_git_untracked = 1;
254 sub rjustt ($$;$) { # right justify and truncate (ie, pad and truncate at left)
255 # always includes prefix
256 my ($sz, $whole, $prefix) = @_;
258 my $lw = length $whole;
259 my $spare = $sz - $lw - (length $prefix);
261 ($spare > 0 ? (' ' x $spare) : '').
263 substr($whole, ($spare < 0 ? -$spare : 0));
267 my ($sz, $whole, $suffix) = @_;
269 $sz -= length $suffix;
270 return sprintf "%-${sz}.${sz}s%s", $whole, $suffix;
274 my ($form, @lines) = @_;
275 gentextmodule($form, @lines);
278 Chars => (length join '', @lines),
279 Lines => (scalar @lines),
280 Ambiguous => ($form =~ m/Full/ && !grep { m/\W/ } @lines),
285 sub genform_q ($$$) {
286 my ($form, $s, $lines) = @_;
289 return if $l % $lines;
293 genform($form, $s =~ m/.{$e}/g);
296 sub genform_plusq ($$) {
299 genform_q("${form}S", $s, 2);
300 genform_q("${form}T", $s, 3);
305 sub gitrun_start () {
306 open F, "-|", @gcmd or die "$gcmd[0]: start: $!";
309 sub gitrun_done (;$) {
315 die "@gcmd failed ($?)\n";
319 (@gcmd) = (qw(git), @_);
323 defined or die "@gcmd produced no output";
324 chomp or die "@gcmd produced no final newline";
329 return unless $do_git;
331 @gcmd = qw(git status --porcelain);
332 push @gcmd, qw(--untracked=no) unless $do_git_untracked;
337 if (m/^\?\?/ && $do_git_untracked) {
344 gitrun_done($git_dirty eq '*');
349 if ($do_git =~ m/c/) {
350 $git_count = gitoutput qw(rev-list --first-parent --count HEAD);
352 if ($do_git =~ m/o/) {
353 $git_object = gitoutput qw(rev-parse HEAD);
356 foreach my $sz (2..10) {
357 gentextmodule_demo_start_batch();
359 genform_plusq("Small$sz", rjustt($sz, $git_count, $git_dirty))
360 if defined $git_count;
362 genform_plusq("Git$sz", ljustt($sz, $git_object, $git_dirty))
363 if defined $git_object;
365 if (defined $git_count && defined $git_object) {
366 genform("Full".($sz*2),
367 ljustt($sz, $git_object),
368 rjustt($sz, $git_count, $git_dirty));
371 genform("Full".($e*3)."T",
372 ljustt($e*2, $git_object, $git_dirty)
374 rjustt($e, $git_count));
379 sub do_some_best ($$) {
380 my ($modname, $formre) = @_;
381 my $fullmodname = "Commitid_${modname}_2D";
382 p "module $fullmodname(max_sz) {\n";
383 p ' sc_max = $Commitid_max_best_scale ? $Commitid_max_best_scale : 2;'."\n";
387 $b->{Chars} <=> $a->{Chars} or
388 $a->{Lines} <=> $b->{Chars}
391 $_->{Form} =~ m/$formre/ &&
396 my $form = $f->{Form};
397 p " sz_$form = Commitid_${form}_sz();\n";
398 foreach my $rot (qw(0 1)) {
399 my $id = "${form}_r${rot}";
400 p " sc_$id = min(sc_max";
401 foreach my $xy (qw(0 1)) {
402 p ",max_sz[$xy]/sz_$form","[",(($xy xor $rot)+0),"]";
405 push @do, " if (sc_$id >= 1.0) {\n";
406 push @do, " scale(sc_$id)\n";
407 push @do, " rotate(90) translate([0,-sz_$form"."[1]])\n" if $rot;
408 push @do, " Commitid_${form}_2D();\n";
414 echo("$fullmodname could not fit anything in", max_sz);
422 return unless $do_git;
424 # Auto-computer for `best fit'
426 # We have two best fit approaches: with count, and git-object-id-only
428 # For `with count', we only ever include the git object id if the
429 # result would be unambigous. That means that at least one space
430 # or punctuation was generated.
432 # We sort the options by firstly number of characters
433 # (decreasing), and then by number of lines (increasing) and
434 # try each one both ways round.
436 do_some_best('BestCount', 'Small|Full') if $do_git =~ m/c/;
437 do_some_best('BestObjid', 'Git|Full') if $do_git =~ m/o/;
442 if (m/^--(no)?-git$/) {
443 $do_git = $1 ? '' : 'co';
444 } elsif (m/^---git=object$/) {
447 $do_git_untracked = 0;
448 } elsif (m/^-t(.*)$/) {
450 die "bad usage: -t needs string argument\n";
452 gentextmodule($form, split /\n/, $_);
455 gentextmodule("Arg$argcounter", $_);
458 die "bad usage: unknown option \`$_'\n";
462 $do_git //= defined($argcounter) ? '' : 'co';
464 gentextmodule_demo_start_batch();
465 gentextmodule('FontDemo', @demo);
470 p "module Commitid_2DDemo(){\n";
471 p " st = Commitid__scale() * [ 10, 5 ];\n";
472 p " e = Commitid_pixelsz();\n";
473 p $_ foreach @gtm_demo_o;
476 flush STDOUT or die $!;
477 close STDOUT or die $!;
491 /#\ r /#\ ##\ # # ### // ### /#\ /#\
492 # # /# # # # # # # # # # # #
493 # # # /#/ ##< \## ##\ ##\ // >#< \##
494 # # # # # # # # # # # # #
495 \#/ /#\ ### ##/ # ##/ \#/ # \#/ ##/
501 /## ##\ # /## #r# ###
503 \## ##/ \## \## \#/ #