$SIG{__WARN__} = sub { die @_; };
# xxx much of the comment below is TODO
-
+#
+# Usage:
+#
+# .../commitid.scad.pl [OPTION...] [STRING...] >commitid.scad.new \
+# && mv -f commitid.scad.new commitid.scad
+#
+# Options:
+#
+# --git generate git commit indications, as shown below
+# (this is the default if no strings are requested with -t)
+#
+# --git=object
+# generate git commit indication based on commit object only
+# (ie avoid counting commits)
+#
+# -i do not generate `+' if git-untracked files are present
+#
+# [-t[FORM]] TEXT
+# generate a form FORM containing TEXT
+# TEXT can contain newlines (final newline usually undesirable)
+# if FORM not specified, generates Arg0 Arg1 Arg2 in sequence
+# character set is SPC 0-9 a-f + * (`*' glyph is `=/=').
+#
# We generate a physical indication of which commit was used.
#
# We provide for scaling factors with dynamic variables:
-# $Commitid_pixelsz if not set, we use 0.4 } multiplied
+# $Commitid_pixelsz if not set, we use 0.8 } multiplied
# $Commitid_scale if not set, we use 1.0 } together
-# $Commitid_depth if not set, we use xy pixel size from above
+# $Commitid_depth if not set, we use xy pixel size from above / 2
# $Commitid_depth_scale if not set, we use 1.0 (multiplies depth above)
#
# For each form we have
#
-# module Commitid_Form_2D(.4)
-# module Commitid_Form()
+# module Commitid_Form_2D() { ... }
+# module Commitid_Form() { ... }
+# function Commitid_Form_sz() => [ x, y ]
+#
+# These have their origin in the bottom left corner. The 3D model
+# is a positive, has its origin halfway through, and is twice the
+# depth in height, so it can be added or subtracted.
#
# And we provide
#
# Tiny8:
# git rev-list --first-parent --count HEAD
# typically 3-4 characters but we allow for up to 6
+# padded with zeroes; if too long we reduce mod 10^n
# eg
# Tiny4 1070
+# If tree is dirty, + or * is suffixed, reducing number of
+# digits by 1.
#
# Tiny4Q:
# Tiny6Q:
# Tiny4Q 10
# 70
#
-# Git4
-# Git6
-# Git8
-# git-rev-parse HEAD
+# Git4 Git4Q
+# Git6 Git6Q
+# Git8 Git8Q
+# git-rev-parse HEAD (prefix of requested length)
# eg
# Git6 82f2a2
+# If tree is dirty, + or * is suffixed to commitid,
+# reducing number of hex digits by 1.
-# Small4
-# Small6
-# Small8
+# Full3
+# Full4
+# Full5
+# Full6
+# Full7
+# Full8
+# Full9
+# Full10
# git-rev-list --first-parent --count HEAD
# git-rev-parse HEAD
# eg
-# Small6 1070
+# Full6 1070
# 82f2a2
+# If tree is dirty, + or * is suffixed to count (but not to
+# commitid) reducing number of digits by 1.
+#
+# FontDemo
+#
+# Arg0, Arg1, ...
+# Strings passed on command line
sub p { print @_ or die $!; }
p <<'END';
+// *** AUTOGENERATED - DO NOT EDIT *** //
function Commitid_pixelsz() =
- ($Commitid_pixelsz ? $Commitid_pixelsz : 0.4) *
+ ($Commitid_pixelsz ? $Commitid_pixelsz : 0.8) *
($Commitid_scale ? $Commitid_scale : 1.0);
function Commitid_depth() =
- ($Commitid_depth ? $Commitid_depth : Commitid_pixelsz()) *
+ ($Commitid_depth ? $Commitid_depth : Commitid_pixelsz()/2) *
($Commitid_depth_scale ? $Commitid_depth_scale : 1.0);
function Commitid__scale() =
- Commitid_pixelsz() / 0.1;
+ Commitid_pixelsz() / 0.2;
END
sub chrmodname ($) {
return "Commitid__chr_$chrx";
}
+sub gentextmodule ($@) {
+ my ($form, @lines) = @_;
+ my $modb = "Commitid_$form";
+ p "module ${modb}_2D(){\n";
+ p " // |$_|\n" foreach @lines;
+ p " scale(Commitid__scale()){\n";
+ my $y = @lines;
+ my $cols = 1;
+ foreach my $line (@lines) {
+ $y--;
+ my $x = 0;
+ foreach my $chr (split //, $line) {
+ next if $chr !~ m/\S/;
+ p sprintf " translate([%d * 0.8, %d * 1.2]) %s();\n",
+ $x, $y, chrmodname $chr;
+ $x++;
+ }
+ $cols = $x if $x > $cols;
+ }
+ p " }\n";
+ p "}\n";
+ p "module ${modb}(){\n";
+ p " d=Commitid_depth();\n";
+ p " translate([0,0,-d]) linear_extrude(height=d*2) ${modb}_2D();\n";
+ p "}\n";
+ p sprintf "function %s_sz() = Commitid__scale() * 0.1 * [ %d, %d ];\n",
+ $modb, 2 * ($cols * 4 - 1), 2 * (@lines * 6 - 1);
+}
+
+our @demo;
+
sub parsefont () {
my %cellmap;
for (;;) {
}
}
- my @demo;
+ my $demo = '';
my $democols = 6;
foreach my $chr (sort keys %chrpolys) {
my $mod = chrmodname $chr;
p "]);\n";
}
p "}\n";
- my $px = @demo % $democols;
- my $py = int(@demo / $democols);
- push @demo, " scale( Commitid__scale() ) translate([$px * 0.800, $py * 1.200])
- $mod ();\n";
+ $demo .= $chr;
}
- p "module Commitid_FontDemo(){\n";
- p $_ foreach @demo;
- p "}\n";
-
-# use Data::Dumper;
-# print Dumper(\%chrpolys);
+ @demo = reverse $demo =~ m{.{1,$democols}}go;
}
parsefont();
-#p "Commitid_FontDemo();\n";
+our $do_git; # contains may chars 'c' (count) and/or 'o' (object)
+our $do_git_untracked = 1;
+our $argcounter;
+
+sub rjustt ($$) { # right justify and truncate (ie, pad and truncate at left)
+ my ($sz, $whole) = @_;
+ my $lw = length $whole;
+ return $lw > $sz
+ ? substr($whole, $lw-$sz)
+ : sprintf "%${sz}s", $whole;
+}
+
+sub ljustt ($$$) { # always includes $suffix
+ my ($sz, $whole, $suffix) = @_;
+ $sz -= length $suffix;
+ return sprintf "%-${sz}.${sz}s%s", $whole, $suffix;
+}
+
+sub gentextmodule_plusq ($$) {
+ my ($form, $s) = @_;
+ my $l = length $s;
+ gentextmodule($form, $s);
+ if (!($l & 1) && $l>=4) {
+ gentextmodule("${form}Q", substr($s,0,$l/2), substr($s,$l/2));
+ }
+}
+
+our @gcmd;
+
+sub gitrun_start () {
+ open F, "-|", @gcmd or die "$gcmd[0]: start: $!";
+}
+
+sub gitrun_done (;$) {
+ my ($errok) = @_;
+ $?=0; $!=0;
+ return if close F;
+ return if $errok;
+ die $! if $!;
+ die "@gcmd failed ($?)\n";
+}
+
+sub gitoutput (@) {
+ (@gcmd) = (qw(git), @_);
+ gitrun_start;
+ $_ = <F>;
+ gitrun_done;
+ defined or die "@gcmd produced no output";
+ chomp or die "@gcmd produced no final newline";
+ $_;
+}
+
+sub do_git () {
+ return unless $do_git;
+
+ @gcmd = qw(git status --porcelain);
+ push @gcmd, qw(--untracked=no) unless $do_git_untracked;
+
+ my $git_dirty = '';
+ gitrun_start;
+ while (<F>) {
+ if (m/^\?\?/ && $do_git_untracked) {
+ $git_dirty = '+';
+ next;
+ }
+ $git_dirty = '*';
+ last;
+ }
+ gitrun_done($git_dirty eq '*');
+
+ my $git_count;
+ my $git_object;
+
+ if ($do_git =~ m/c/) {
+ $git_count = gitoutput qw(rev-list --first-parent --count HEAD);
+ }
+ if ($do_git =~ m/o/) {
+ $git_object = gitoutput qw(rev-parse HEAD);
+ }
+
+ foreach my $sz (3..8) {
+ gentextmodule_plusq("Tiny$sz", rjustt($sz, $git_count.$git_dirty))
+ if defined $git_count;
+
+ gentextmodule_plusq("Git$sz", ljustt($sz, $git_object, $git_dirty))
+ if defined $git_object;
+
+ gentextmodule("Full$sz",
+ rjustt($sz, $git_count.$git_dirty),
+ ljustt($sz, $git_object, ''))
+ if defined $git_count && defined $git_object;
+ }
+}
+
+while (@ARGV) {
+ $_ = shift;
+ if (m/^--(no)?-git$/) {
+ $do_git = $1 ? '' : 'co';
+ } elsif (m/^---git=object$/) {
+ $do_git = 'o';
+ } elsif (m/^-i$/) {
+ $do_git_untracked = 0;
+ } elsif (m/^-t(.*)$/) {
+ my $form = $1;
+ die "bad usage: -t needs string argument\n";
+ $_ = shift;
+ gentextmodule($form, split /\n/, $_);
+ $argcounter //= 0;
+ } elsif (m/^[^-]/) {
+ gentextmodule("Arg$argcounter", $_);
+ $argcounter++;
+ } else {
+ die "bad usage: unknown option \`$_'\n";
+ }
+}
+
+$do_git //= defined($argcounter) ? '' : 'co';
+
+gentextmodule('FontDemo', @demo);
+
+do_git();
+
+flush STDOUT or die $!;
+close STDOUT or die $!;
__DATA__
# # # # # # # #/ #
\## ##/ \## \## \#/ #
++ *
+
+ r
+ # ###
+### #
+ # ###
+ L