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)
38 # For each form we have
40 # module Commitid_Form_2D() { ... }
41 # module Commitid_Form() { ... }
42 # function Commitid_Form_sz() => [ x, y ]
44 # These have their origin in the bottom left corner. The 3D model
45 # is a positive, has its origin halfway through, and is twice the
46 # depth in height, so it can be added or subtracted.
50 # function Commitid_pixelsz() // $Commitid_pixelsz * $Commitid_scale
51 # function Commitid_depth() // see above
53 # We can generate these forms:
56 # if tree is dirty, * is suffixed or prefixed to count or commitid
57 # if tree has untracked files, + is added
58 # (where it is added depends on the Form; in any case it does not
59 # change the size, but steals space from digits)
61 # Small2 Small3 ... Small10:
62 # git rev-list --first-parent --count HEAD
63 # typically 3-4 characters but we allow for up to 6
64 # padded with zeroes; if too long we reduce mod 10^n
65 # eg if the count is 123456
67 # Small8 __123456 (where _ are spaces)
69 # Small2S Small4S ... Small10S:
71 # same but split into two lines (S) or three lines (T) eg
72 # Small4S 45 Small6T _3
76 # Git2 Git3 ... Git10:
77 # Git4S Git6S ... Git10S:
79 # git-rev-parse HEAD (prefix of requested length)
80 # eg if the commitid is abcdef0123...
83 # Full4 Full6 ... Full20:
84 # git-rev-list --first-parent --count HEAD
88 # Full6 abcdef Full8 abcdef01
91 # Full6T Full9T ... Full30T
92 # as Full but commit is split over two lines
93 # for a 3-line message; eg
101 # Strings passed on command line
103 sub p { print @_ or die $!; }
106 // *** AUTOGENERATED - DO NOT EDIT *** //
107 function Commitid_pixelsz() =
108 ($Commitid_pixelsz ? $Commitid_pixelsz : 0.8) *
109 ($Commitid_scale ? $Commitid_scale : 1.0);
110 function Commitid_depth() =
111 ($Commitid_depth ? $Commitid_depth : Commitid_pixelsz()/2) *
112 ($Commitid_depth_scale ? $Commitid_depth_scale : 1.0);
113 function Commitid__scale() =
114 Commitid_pixelsz() / 0.2;
119 my $chrx = sprintf '%#x', ord $chr;
120 return "Commitid__chr_$chrx";
123 our $gtm_demo_i = -1;
127 sub gentextmodule_demo_start_batch () {
132 sub gentextmodule ($@) {
133 my ($form, @lines) = @_;
134 my $modb = "Commitid_$form";
135 p "module ${modb}_2D(){\n";
136 p " // |$_|\n" foreach @lines;
137 p " scale(Commitid__scale()){\n";
140 foreach my $line (@lines) {
143 foreach my $chr (split //, $line) {
144 p sprintf " translate([%d * 0.8, %d * 1.2]) %s();\n",
145 $x, $y, chrmodname $chr
149 $cols = $x if $x > $cols;
153 p "module ${modb}(){\n";
154 p " d=Commitid_depth();\n";
155 p " translate([0,0,-d]) linear_extrude(height=d*2) ${modb}_2D();\n";
158 p sprintf "function %s_sz() = Commitid__scale() * 0.1 * [ %d, %d ];\n",
159 $modb, 2 * ($cols * 4 - 1), 2 * (@lines * 6 - 1);
161 push @gtm_demo_o, <<END;
162 translate([$gtm_demo_i * st[0], $gtm_demo_j * st[1]]) {
164 color("blue") translate([-e,-e]) square(${modb}_sz() + 2*[e,e]);
165 square(${modb}_sz());
179 last if %cellmap && !m/\S/;
189 my @chrs = split / /, $_;
190 <DATA> !~ m/\S/ or die;
191 foreach my $row (reverse 0..4) {
202 foreach my $chr (@chrs) {
203 s{^ }{} or die "$chr $_ ?";
204 foreach my $col (0..2) {
208 my $f = $cellmap{$&};
210 $f =~ s/\b\d/ sprintf '%05d', $col*2000 + $&*1025 /ge;
211 $f =~ s/\d\b/ sprintf '%05d', $row*2000 + $&*1025 /ge;
212 push @{ $chrpolys{$chr} }, [ split / /, $f ];
224 foreach my $chr (sort keys %chrpolys) {
225 my $mod = chrmodname $chr;
226 p "module $mod () {\n";
227 foreach my $poly (@{ $chrpolys{$chr} }) {
230 foreach my $pt (@$poly) {
232 $pt =~ s{\d{5}}{$&,};
233 $pt =~ s{\b\d}{$&.}g;
242 @demo = reverse $demo =~ m{.{1,$democols}}go;
247 our $do_git; # contains may chars 'c' (count) and/or 'o' (object)
248 our $do_git_untracked = 1;
253 sub rjustt ($$;$) { # right justify and truncate (ie, pad and truncate at left)
254 # always includes prefix
255 my ($sz, $whole, $prefix) = @_;
257 my $lw = length $whole;
258 my $spare = $sz - $lw - (length $prefix);
260 ($spare > 0 ? (' ' x $spare) : '').
262 substr($whole, ($spare < 0 ? -$spare : 0));
266 my ($sz, $whole, $suffix) = @_;
268 $sz -= length $suffix;
269 return sprintf "%-${sz}.${sz}s%s", $whole, $suffix;
273 my ($form, @lines) = @_;
274 gentextmodule($form, @lines);
277 Chars => (length join '', @lines),
278 Lines => (scalar @lines),
279 Ambiguous => ($form =~ m/Full/ && !grep { m/\W/ } @lines),
284 sub genform_q ($$$) {
285 my ($form, $s, $lines) = @_;
288 return if $l % $lines;
292 genform($form, $s =~ m/.{$e}/g);
295 sub genform_plusq ($$) {
298 genform_q("${form}S", $s, 2);
299 genform_q("${form}T", $s, 3);
304 sub gitrun_start () {
305 open F, "-|", @gcmd or die "$gcmd[0]: start: $!";
308 sub gitrun_done (;$) {
314 die "@gcmd failed ($?)\n";
318 (@gcmd) = (qw(git), @_);
322 defined or die "@gcmd produced no output";
323 chomp or die "@gcmd produced no final newline";
328 return unless $do_git;
330 @gcmd = qw(git status --porcelain);
331 push @gcmd, qw(--untracked=no) unless $do_git_untracked;
336 if (m/^\?\?/ && $do_git_untracked) {
343 gitrun_done($git_dirty eq '*');
348 if ($do_git =~ m/c/) {
349 $git_count = gitoutput qw(rev-list --first-parent --count HEAD);
351 if ($do_git =~ m/o/) {
352 $git_object = gitoutput qw(rev-parse HEAD);
355 foreach my $sz (2..10) {
356 gentextmodule_demo_start_batch();
358 genform_plusq("Small$sz", rjustt($sz, $git_count, $git_dirty))
359 if defined $git_count;
361 genform_plusq("Git$sz", ljustt($sz, $git_object, $git_dirty))
362 if defined $git_object;
364 if (defined $git_count && defined $git_object) {
365 genform("Full".($sz*2),
366 ljustt($sz, $git_object),
367 rjustt($sz, $git_count, $git_dirty));
370 genform("Full".($e*3)."T",
371 ljustt($e*2, $git_object, $git_dirty)
373 rjustt($e, $git_count));
378 sub do_some_best ($$) {
379 my ($modname, $formre) = @_;
380 p "module Commitid_$modname(max_sz) {\n";
383 $b->{Chars} <=> $a->{Chars} or
384 $a->{Lines} <=> $b->{Chars}
387 $_->{Form} =~ m/$formre/ &&
398 return unless $do_git;
400 # Auto-computer for `best fit'
402 # We have two best fit approaches: with count, and git-object-id-only
404 # For `with count', we only ever include the git object id if the
405 # result would be unambigous. That means that at least one space
406 # or punctuation was generated.
408 # We sort the options by firstly number of characters
409 # (decreasing), and then by number of lines (increasing) and
410 # try each one both ways round.
412 do_some_best('BestCount', 'Small|Full') if $do_git =~ m/c/;
413 do_some_best('BestObjid', 'Git|Full') if $do_git =~ m/o/;
418 if (m/^--(no)?-git$/) {
419 $do_git = $1 ? '' : 'co';
420 } elsif (m/^---git=object$/) {
423 $do_git_untracked = 0;
424 } elsif (m/^-t(.*)$/) {
426 die "bad usage: -t needs string argument\n";
428 gentextmodule($form, split /\n/, $_);
431 gentextmodule("Arg$argcounter", $_);
434 die "bad usage: unknown option \`$_'\n";
438 $do_git //= defined($argcounter) ? '' : 'co';
440 gentextmodule_demo_start_batch();
441 gentextmodule('FontDemo', @demo);
446 p "module Commitid_2DDemo(){\n";
447 p " st = Commitid__scale() * [ 10, 5 ];\n";
448 p " e = Commitid_pixelsz();\n";
449 p $_ foreach @gtm_demo_o;
452 flush STDOUT or die $!;
453 close STDOUT or die $!;
467 /#\ r /#\ ##\ # # ### // ### /#\ /#\
468 # # /# # # # # # # # # # # #
469 # # # /#/ ##< \## ##\ ##\ // >#< \##
470 # # # # # # # # # # # # #
471 \#/ /#\ ### ##/ # ##/ \#/ # \#/ ##/
477 /## ##\ # /## #r# ###
479 \## ##/ \## \## \#/ #