X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=commitid.scad.pl;h=053bcc32f91fe6f7d5051cd26edfb4fed785df08;hb=d9f979afb3faa0ba92f86d5c5221a59f0dd8a89f;hp=9a7667dc82c9b4f1339451522e11bb6b0dc60529;hpb=37ee8edb162304dbd4db9a91b951ac2602c116ef;p=reprap-play.git

diff --git a/commitid.scad.pl b/commitid.scad.pl
index 9a7667d..053bcc3 100755
--- a/commitid.scad.pl
+++ b/commitid.scad.pl
@@ -52,64 +52,47 @@ $SIG{__WARN__} = sub { die @_; };
 #
 # We can generate these forms:
 #
-#   Small3:
-#   Small4:
-#   Small5:
-#   Small6:
-#   Small7:
-#   Small8:
-#   Small9:
-#   Small10:
+#  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
-#            Small4    1070
-#       If tree is dirty, + or * is suffixed, reducing number of
-#       digits by 1.
+#       eg if the count is 123456
+#            Small5    3456*
+#            Small8    __123456    (where _ are spaces)
 #
-#   Small4S:
-#   Small6S:   Small6T:
-#   Small8S:   Small9T:
-#   Small10S:
+#   Small2S Small4S ... Small10S:
+#   Small3T Small9T:
 #       same but split into two lines (S) or three lines (T) eg
-#            Small4S  10     Small6t    1
-#                     70               07
-#                                      0*
+#            Small4S  45     Small6T   _3
+#                     6*               45
+#                                      6*
 #
-#   Git4   Git4S
-#   Git6   Git6S   Git6T
-#   Git8   Git8S
-#   Git9           Git9T
-#   Git10  Git10S
+#   Git2 Git3 ... Git10:
+#   Git4S Git6S ... Git10S:
+#   Git6T Git9T:
 #       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.
-
-#   Full3
-#   Full4
-#   Full5
-#   Full6
-#   Full7
-#   Full8
-#   Full9
-#   Full10
+#       eg if the commitid is abcdef0123...
+#            Git5    abcd*
+
+#   Full4 Full6 ... Full10:
 #       git-rev-list --first-parent --count HEAD
 #       git-rev-parse HEAD
 #       eg
-#            Full6    82f2a2
-#                       1070
-#       If tree is dirty, + or * is suffixed to count (but not to
-#       commitid) reducing number of digits by 1.
+#            Full6    abcdef       Full8     abcdef01
+#                     23456*                 _123456*
 #
-#   Full6T
-#   Full9T
-#   Full12T
-#   Full15T
-#       As Full but commit is split over two lines for a 3-line message;
-#       dirty marker is in commitid.
+#   Full6T Full9T ... Full30T
+#       as Full but commit is split over two lines
+#       for a 3-line message; eg
+#             Full9T    abc
+#                       de*
+#                       456
 #
 #   FontDemo
 #
@@ -140,9 +123,9 @@ our $gtm_demo_i = -1;
 our $gtm_demo_j;
 our @gtm_demo_o;
 
-sub gentextmodule_demo_start_batch ($;$) {
-    ($gtm_demo_i, $gtm_demo_j) = @_;
-    $gtm_demo_j //= 0;
+sub gentextmodule_demo_start_batch () {
+    $gtm_demo_j = 0;
+    $gtm_demo_i++;
 }
 
 sub gentextmodule ($@) {
@@ -264,16 +247,21 @@ our $do_git; # contains may chars 'c' (count) and/or 'o' (object)
 our $do_git_untracked = 1;
 our $argcounter;
 
-sub rjustt ($$) { # right justify and truncate (ie, pad and truncate at left)
-    my ($sz, $whole) = @_;
+sub rjustt ($$;$) { # right justify and truncate (ie, pad and truncate at left)
+                    # always includes prefix
+    my ($sz, $whole, $prefix) = @_;
+    $prefix //= '';
     my $lw = length $whole;
-    return $lw > $sz
-	? substr($whole, $lw-$sz)
-	: sprintf "%${sz}s", $whole;
+    my $spare = $sz - $lw - (length $prefix);
+    return
+	($spare > 0 ? (' ' x $spare) : '').
+	$prefix.
+	substr($whole, ($spare < 0 ? -$spare : 0));
 }
 
-sub ljustt ($$$) { # always includes $suffix
+sub ljustt ($$;$) {
     my ($sz, $whole, $suffix) = @_;
+    $suffix //= '';
     $sz -= length $suffix;
     return sprintf "%-${sz}.${sz}s%s", $whole, $suffix;
 }
@@ -349,10 +337,10 @@ sub do_git () {
 	$git_object = gitoutput qw(rev-parse HEAD);
     }
 
-    foreach my $sz (3..10) {
-	gentextmodule_demo_start_batch($sz-3);
+    foreach my $sz (2..10) {
+	gentextmodule_demo_start_batch();
 
-	gentextmodule_plusq("Small$sz", rjustt($sz, $git_count.$git_dirty))
+	gentextmodule_plusq("Small$sz", rjustt($sz, $git_count, $git_dirty))
 	    if defined $git_count;
 
 	gentextmodule_plusq("Git$sz", ljustt($sz, $git_object, $git_dirty))
@@ -360,16 +348,14 @@ sub do_git () {
 
 	if (defined $git_count && defined $git_object) {
 	    gentextmodule("Full$sz",
-			  ljustt($sz, $git_object, ''),
-			  rjustt($sz, $git_count.$git_dirty));
-
-	    if (!($sz % 2)) {
-		my $e = $sz/2;
-		gentextmodule("Full".($e*3)."T",
-			      ljustt($e*2, $git_object, $git_dirty)
-			      =~ m/.{$e}/g,
-			      rjustt($e, $git_count));
-	    }
+			  ljustt($sz, $git_object),
+			  rjustt($sz, $git_count, $git_dirty));
+
+	    my $e = $sz;
+	    gentextmodule("Full".($e*3)."T",
+			  ljustt($e*2, $git_object, $git_dirty)
+			  =~ m/.{$e}/g,
+			  rjustt($e, $git_count));
 	}
     }
 }    
@@ -398,7 +384,7 @@ while (@ARGV) {
 
 $do_git //= defined($argcounter) ? '' : 'co';
 
-gentextmodule_demo_start_batch(-1);
+gentextmodule_demo_start_batch();
 gentextmodule('FontDemo', @demo);
 
 do_git();