$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 + *
+#
# We generate a physical indication of which commit was used.
#
# We provide for scaling factors with dynamic variables:
# $Commitid_scale if not set, we use 1.0 } together
# $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)
+# $Commitid_max_best_scale if not set, we use 2.0 (max mult of xy in Best)
#
# For each form we have
#
#
# We can generate these forms:
#
-# Tiny3:
-# Tiny4:
-# Tiny5:
-# Tiny6:
-# Tiny7:
-# Tiny8:
+# In each case:
+# if tree is dirty, * is suffixed or prefixed to count or commitid
+# if tree has untracked files, + is added
+# (where it is added depends on the Form; in any case it does not
+# change the size, but steals space from digits)
+#
+# Small2 Small3 ... Small10:
# 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
-#
-# Tiny4Q:
-# Tiny6Q:
-# Tiny9Q:
-# same but in two lines eg
-# Tiny4Q 10
-# 70
-#
-# Git4 Git4Q
-# Git6 Git6Q
-# Git8 Git8Q
+# eg if the count is 123456
+# Small5 3456*
+# Small8 __123456 (where _ are spaces)
+# the git objectid is included if it will fit
+# unambiguously and usefully eg
+# Small9 ab*123456
+#
+# Small2S Small4S ... Small10S:
+# Small3T Small9T:
+# same but split into two lines (S) or three lines (T) eg
+# Small4S 45 Small6T _3
+# 6* 45
+# 6*
+#
+# Git2 Git3 ... Git10:
+# Git4S Git6S ... Git10S:
+# Git6T Git9T:
# git-rev-parse HEAD (prefix of requested length)
-# eg
-# Git6 82f2a2
+# eg if the commitid is abcdef0123...
+# Git5 abcd*
-# Small4
-# Small6
-# Small8
+# Full4 Full6 ... Full20:
# git-rev-list --first-parent --count HEAD
# git-rev-parse HEAD
+# (all on two lines)
# eg
-# Small6 1070
-# 82f2a2
+# Full6 abcdef Full8 abcdef01
+# 23456* _123456*
+#
+# Full6T Full9T ... Full30T
+# as Full but commit is split over two lines
+# for a 3-line message; eg
+# Full9T abc
+# de*
+# 456
+#
+# FontDemo
+#
+# Arg0, Arg1, ...
+# Strings passed on command line
sub p { print @_ or die $!; }
return "Commitid__chr_$chrx";
}
+our $gtm_demo_i = -1;
+our $gtm_demo_j;
+our @gtm_demo_o;
+
+sub gentextmodule_demo_start_batch () {
+ $gtm_demo_j = 0;
+ $gtm_demo_i++;
+}
+
sub gentextmodule ($@) {
my ($form, @lines) = @_;
my $modb = "Commitid_$form";
$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, $y, chrmodname $chr
+ if $chr =~ m/\S/;
$x++;
}
$cols = $x if $x > $cols;
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);
+
+ push @gtm_demo_o, <<END;
+ translate([$gtm_demo_i * st[0], $gtm_demo_j * st[1]]) {
+ difference(){
+ color("blue") translate([-e,-e]) square(${modb}_sz() + 2*[e,e]);
+ square(${modb}_sz());
+ }
+ ${modb}_2D();
+}
+END
+ $gtm_demo_j++;
}
our @demo;
parsefont();
+our $do_git; # contains may chars 'c' (count) and/or 'o' (object)
+our $do_git_untracked = 1;
+our $argcounter;
+
+our @forms;
+
+sub rjustt ($$;$) { # right justify and truncate (ie, pad and truncate at left)
+ # always includes prefix
+ my ($sz, $whole, $prefix) = @_;
+ $prefix //= '';
+ my $lw = length $whole;
+ my $spare = $sz - $lw - (length $prefix);
+ return
+ ($spare > 0 ? (' ' x $spare) : '').
+ $prefix.
+ substr($whole, ($spare < 0 ? -$spare : 0));
+}
+
+sub ljustt ($$;$) {
+ my ($sz, $whole, $suffix) = @_;
+ $suffix //= '';
+ $sz -= length $suffix;
+ return sprintf "%-${sz}.${sz}s%s", $whole, $suffix;
+}
+
+sub genform ($@) {
+ my ($form, @lines) = @_;
+ gentextmodule($form, @lines);
+ my $f = {
+ Form => $form,
+ Chars => (length join '', @lines),
+ Lines => (scalar @lines),
+ Ambiguous => ($form =~ m/Full/ && !grep { m/\W/ } @lines),
+ };
+ push @forms, $f;
+}
+
+sub genform_q ($$$) {
+ my ($form, $s, $lines) = @_;
+ $gtm_demo_j++;
+ my $l = length $s;
+ return if $l % $lines;
+ my $e = $l/$lines;
+ return if $e < 2;
+ $gtm_demo_j--;
+ genform($form, $s =~ m/.{$e}/g);
+}
+
+sub genform_plusq ($$) {
+ my ($form, $s) = @_;
+ genform($form, $s);
+ genform_q("${form}S", $s, 2);
+ genform_q("${form}T", $s, 3);
+}
+
+our @gcmd;
+
+sub gitrun_start () {
+ open F, "-|", @gcmd or die "$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 $sz (2..10) {
+ gentextmodule_demo_start_batch();
+
+ if (defined($git_count)) {
+ my $smallstr = rjustt($sz, $git_count, $git_dirty);
+ if (defined($git_object) && $sz >= length($git_count) + 3) {
+ $smallstr = $git_object;
+ $smallstr .= ($git_dirty || ' ');
+ $smallstr .= $git_count;
+ $smallstr = rjustt($sz, $smallstr);
+ }
+ genform_plusq("Small$sz", $smallstr);
+ }
+
+ genform_plusq("Git$sz", ljustt($sz, $git_object, $git_dirty))
+ if defined $git_object;
+
+ if (defined $git_count && defined $git_object) {
+ genform("Full".($sz*2),
+ ljustt($sz, $git_object),
+ rjustt($sz, $git_count, $git_dirty));
+
+ my $e = $sz;
+ genform("Full".($e*3)."T",
+ ljustt($e*2, $git_object, $git_dirty)
+ =~ m/.{$e}/g,
+ rjustt($e, $git_count));
+ }
+ }
+}
+
+sub do_some_best ($$) {
+ my ($modname, $formre) = @_;
+ my $fullmodname = "Commitid_${modname}_2D";
+ p "module $fullmodname(max_sz) {\n";
+ p ' sc_max = $Commitid_max_best_scale ? $Commitid_max_best_scale : 2;'."\n";
+ my @do;
+ foreach my $f (
+ sort {
+ $b->{Chars} <=> $a->{Chars} or
+ $a->{Lines} <=> $b->{Chars}
+ }
+ grep {
+ $_->{Form} =~ m/$formre/ &&
+ !$_->{Ambiguous}
+ }
+ @forms
+ ) {
+ my $form = $f->{Form};
+ p " sz_$form = Commitid_${form}_sz();\n";
+ foreach my $rot (qw(0 1)) {
+ my $id = "${form}_r${rot}";
+ p " sc_$id = min(sc_max";
+ foreach my $xy (qw(0 1)) {
+ p ",max_sz[$xy]/sz_$form","[",(($xy xor $rot)+0),"]";
+ }
+ p ");\n";
+ push @do, " if (sc_$id >= 1.0) {\n";
+ push @do, " scale(sc_$id)\n";
+ push @do, " rotate(90) translate([0,-sz_$form"."[1]])\n" if $rot;
+ push @do, " Commitid_${form}_2D();\n";
+ push @do, " } else";
+ }
+ }
+ push @do, <<END;
+ {
+ echo("$fullmodname could not fit anything in", max_sz);
+ }
+END
+ p $_ foreach @do;
+ p "}\n";
+}
+
+sub do_git_best () {
+ return unless $do_git;
+
+ # Auto-computer for `best fit'
+ #
+ # We have two best fit approaches: with count, and git-object-id-only
+ #
+ # For `with count', we only ever include the git object id if the
+ # result would be unambigous. That means that at least one space
+ # or punctuation was generated.
+ #
+ # We sort the options by firstly number of characters
+ # (decreasing), and then by number of lines (increasing) and
+ # try each one both ways round.
+
+ do_some_best('BestCount', 'Small|Full') if $do_git =~ m/c/;
+ do_some_best('BestObjid', 'Git|Full') if $do_git =~ m/o/;
+}
+
+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_demo_start_batch();
gentextmodule('FontDemo', @demo);
+do_git();
+do_git_best();
+
+p "module Commitid_2DDemo(){\n";
+p " st = Commitid__scale() * [ 10, 5 ];\n";
+p " e = Commitid_pixelsz();\n";
+p $_ foreach @gtm_demo_o;
+p "}\n";
+
flush STDOUT or die $!;
close STDOUT or die $!;
+ *
- r
- # ###
-### #
- # ###
- L
+ # #
+ # \#/
+### ###
+ # /#\
+ # #
~ianmdlvl / reprap-play.git / blobdiff