Create new octicons.ttf

[why]
The octicons got a lot updates.
But they do not have a font anymore.

[how]
Keep our old codepoints constant, but add the new icons thereafter.

Fixes: #490

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>

src/glyphs/octicons/analyze_octicons

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+# coding=utf8
+
+# This extracts the names and source and destination codepoints
+# of the old octicons font file to keep their codepoints stable
+#
+# You do not need to redo it, the result is in the repo
+#
+# Usage:
+# fontforge analyze_octicons > mapping
+
+import fontforge
+
+octi_orig = "octicons_old.ttf"
+current_cp = 0xF400
+
+print('# Examining {}'.format(octi_orig))
+
+font = fontforge.open(octi_orig)
+for glyph in font.glyphs('encoding'):
+    point = glyph.unicode
+    if point < 0:
+        continue
+    desti = glyph.unicode
+    if point < 0xF000:
+        desti = point
+    else:
+        desti = current_cp
+        current_cp += 1
+    print("{:X} {:X} {}".format(point, desti, glyph.glyphname))
+
+font.close()

src/glyphs/octicons/generate

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+# coding=utf8
+
+import sys
+import os
+import re
+import subprocess
+import fontforge
+
+archive = 'v18.2.0.tar.gz'
+subset = '-24' # use 24 px subset if possible
+
+def renamer(old_name):
+    """ Return new equivalent icon name """
+    return {
+            'trashcan' : 'trash',
+            'cloud-download' : 'download',
+            'cloud-upload' : 'upload',
+            'clippy' : 'paste',
+            'mail-read' : 'read',
+            'primitive-dot' : 'dot-fill',
+            'primitive-square' : 'square-fill',
+            'settings' : 'sliders',
+            'dashboard' : 'meter',
+            'paintcan' : 'paintbrush',
+            'ellipses' : 'ellipsis',
+        }.get(old_name, old_name)
+
+print('\nReading mapping file')
+old_mapping = []
+with open('mapping', 'r') as f:
+    for line in f.readlines():
+        if line.startswith('#'):
+            continue
+        old_mapping.append(tuple(re.split(' +', line.strip())))
+print('Found {} entries'.format(len(old_mapping)))
+
+print('Fetching octicons archive "{}"\n'.format(archive))
+# if subprocess.call('curl -OL https://github.com/primer/octicons/archive/' + archive, shell=True):
+#     sys.exit('Error fetching octicons archive')
+print('\nUnpacking octicons archive')
+if subprocess.call('rm -rf icons octicons-* && tar zxf *.gz && mv octicons-*/icons . && rm -rf octicons-*', shell=True):
+    sys.exit('Error unpacking archive')
+
+svgs = os.listdir('icons') # icons is the subdir we got from the archive
+print('Found {} svgs'.format(len(svgs)))
+names = { s[0:-len('-xx.svg')] for s in svgs if s.endswith('-16.svg') or s.endswith('-24.svg') }
+print('Found {} icons after de-duplicating\n'.format(len(names)))
+
+num_found = 0
+num_missing = 0
+misslist = ''
+renamelist = ''
+
+for [i, j, old_n] in old_mapping:
+    if old_n not in names:
+        new_n = renamer(old_n)
+        if new_n not in names:
+            misslist += 'Missing {}\n'.format(old_n)
+            num_missing += 1
+            continue
+        renamelist += 'Renamed {} -> {}\n'.format(old_n, new_n)
+        old_n = new_n
+    names.remove(old_n)
+    num_found += 1
+
+print(renamelist)
+print(misslist)
+print("Found {} (of {}, missing {}) and new {}".format(num_found, len(old_mapping), num_missing, len(names)))

src/glyphs/octicons/mapping

@@ -0,0 +1,173 @@
+# Examining octicons_old.ttf
+2665 2665 heart
+26A1 26A1 zap
+F000 F400 light-bulb
+F001 F401 repo
+F002 F402 repo-forked
+F005 F403 repo-push
+F006 F404 repo-pull
+F007 F405 book
+F008 F406 octoface
+F009 F407 git-pull-request
+F00A F408 mark-github
+F00B F409 cloud-download
+F00C F40A cloud-upload
+F00D F40B keyboard
+F00E F40C gist
+F010 F40D file-code
+F011 F40E file-text
+F012 F40F file-media
+F013 F410 file-zip
+F014 F411 file-pdf
+F015 F412 tag
+F016 F413 file-directory
+F017 F414 file-submodule
+F018 F415 person
+F019 F416 jersey
+F01F F417 git-commit
+F020 F418 git-branch
+F023 F419 git-merge
+F024 F41A mirror
+F026 F41B issue-opened
+F027 F41C issue-reopened
+F028 F41D issue-closed
+F02A F41E star
+F02B F41F comment
+F02C F420 question
+F02D F421 alert
+F02E F422 search
+F02F F423 gear
+F030 F424 radio-tower
+F031 F425 tools
+F032 F426 sign-out
+F033 F427 rocket
+F034 F428 rss
+F035 F429 clippy
+F036 F42A sign-in
+F037 F42B organization
+F038 F42C device-mobile
+F039 F42D unfold
+F03A F42E check
+F03B F42F mail
+F03C F430 mail-read
+F03D F431 arrow-up
+F03E F432 arrow-right
+F03F F433 arrow-down
+F040 F434 arrow-left
+F041 F435 pin
+F042 F436 gift
+F043 F437 graph
+F044 F438 triangle-left
+F045 F439 credit-card
+F046 F43A clock
+F047 F43B ruby
+F048 F43C broadcast
+F049 F43D key
+F04A F43E repo-force-push
+F04C F43F repo-clone
+F04D F440 diff
+F04E F441 eye
+F04F F442 comment-discussion
+F051 F443 mail-reply
+F052 F444 primitive-dot
+F053 F445 primitive-square
+F056 F446 device-camera
+F057 F447 device-camera-video
+F058 F448 pencil
+F059 F449 info
+F05A F44A triangle-right
+F05B F44B triangle-down
+F05C F44C link
+F05D F44D plus
+F05E F44E three-bars
+F05F F44F code
+F060 F450 location
+F061 F451 list-unordered
+F062 F452 list-ordered
+F063 F453 quote
+F064 F454 versions
+F068 F455 calendar
+F06A F456 lock
+F06B F457 diff-added
+F06C F458 diff-removed
+F06D F459 diff-modified
+F06E F45A diff-renamed
+F070 F45B horizontal-rule
+F071 F45C arrow-small-right
+F075 F45D milestone
+F076 F45E checklist
+F077 F45F megaphone
+F078 F460 chevron-right
+F07B F461 bookmark
+F07C F462 settings
+F07D F463 dashboard
+F07E F464 history
+F07F F465 link-external
+F080 F466 mute
+F081 F467 x
+F084 F468 circle-slash
+F085 F469 pulse
+F087 F46A sync
+F088 F46B telescope
+F08C F46C gist-secret
+F08D F46D home
+F08F F46E stop
+F091 F46F bug
+F092 F470 logo-github
+F094 F471 file-binary
+F096 F472 database
+F097 F473 server
+F099 F474 diff-ignored
+F09A F475 ellipsis
+F09C F476 no-newline
+F09D F477 hubot
+F09F F478 arrow-small-up
+F0A0 F479 arrow-small-down
+F0A1 F47A arrow-small-left
+F0A2 F47B chevron-up
+F0A3 F47C chevron-down
+F0A4 F47D chevron-left
+F0AA F47E triangle-up
+F0AC F47F git-compare
+F0AD F480 logo-gist
+F0B0 F481 file-symlink-file
+F0B1 F482 file-symlink-directory
+F0B2 F483 squirrel
+F0B6 F484 globe
+F0BA F485 unmute
+F0BE F486 mention
+F0C4 F487 package
+F0C5 F488 browser
+F0C8 F489 terminal
+F0C9 F48A markdown
+F0CA F48B dash
+F0CC F48C fold
+F0CF F48D inbox
+F0D0 F48E trashcan
+F0D1 F48F paintcan
+F0D2 F490 flame
+F0D3 F491 briefcase
+F0D4 F492 plug
+F0D6 F493 circuit-board
+F0D7 F494 mortar-board
+F0D8 F495 law
+F0DA F496 thumbsup
+F0DB F497 thumbsdown
+F0DC F498 desktop-download
+F0DD F499 beaker
+F0DE F49A bell
+F0E0 F49B watch
+F0E1 F49C shield
+F0E2 F49D bold
+F0E3 F49E text-size
+F0E4 F49F italic
+F0E5 F4A0 tasklist
+F0E6 F4A1 verified
+F0E7 F4A2 smiley
+F0E8 F4A3 unverified
+F101 F4A4 ellipses
+F102 F4A5 file
+F103 F4A6 grabber
+F104 F4A7 plus-small
+F105 F4A8 reply
+F27C F4A9 device-desktop