Add glob and some finer tuning of documentation

tool/build/summy.c

@@ -0,0 +1,31 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ This program is free software; you can redistribute it and/or modify         │
+│ it under the terms of the GNU General Public License as published by         │
+│ the Free Software Foundation; version 2 of the License.                      │
+│                                                                              │
+│ This program is distributed in the hope that it will be useful, but          │
+│ WITHOUT ANY WARRANTY; without even the implied warranty of                   │
+│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU             │
+│ General Public License for more details.                                     │
+│                                                                              │
+│ You should have received a copy of the GNU General Public License            │
+│ along with this program; if not, write to the Free Software                  │
+│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
+│ 02110-1301 USA                                                               │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/stdio/stdio.h"
+
+/**
+ * @fileoverview Sums per-line integers from stdin.
+ */
+
+int main(int argc, char *argv[]) {
+  long x, sum = 0;
+  while (scanf("%ld", &x) > 0) sum += x;
+  printf("%,ld\n", sum);
+  return 0;
+}

tool/build/zipobj.c

@@ -62,6 +62,7 @@
 
 char *symbol_;
 char *outpath_;
+char *yoink_;
 
 const size_t kMinCompressSize = 32;
 const char kNoCompressExts[][8] = {".gz",  ".xz",  ".jpg",  ".png",
@@ -70,13 +71,14 @@ const char kNoCompressExts[][8] = {".gz",  ".xz",  ".jpg",  ".png",
 
 noreturn void PrintUsage(int rc, FILE *f) {
   fprintf(f, "%s%s%s\n", "Usage: ", program_invocation_name,
-          " [-o FILE] [-s SYMBOL] [FILE...]\n");
+          " [-o FILE] [-s SYMBOL] [-y YOINK] [FILE...]\n");
   exit(rc);
 }
 
 void GetOpts(int *argc, char ***argv) {
   int opt;
-  while ((opt = getopt(*argc, *argv, "?ho:s:")) != -1) {
+  yoink_ = "__zip_start";
+  while ((opt = getopt(*argc, *argv, "?ho:s:y:")) != -1) {
     switch (opt) {
       case 'o':
         outpath_ = optarg;
@@ -84,6 +86,9 @@ void GetOpts(int *argc, char ***argv) {
       case 's':
         symbol_ = optarg;
         break;
+      case 'y':
+        yoink_ = optarg;
+        break;
       case '?':
       case 'h':
         PrintUsage(EXIT_SUCCESS, stdout);
@@ -273,8 +278,7 @@ void PullEndOfCentralDirectoryIntoLinkage(struct ElfWriter *elf) {
   elfwriter_align(elf, 1, 0);
   elfwriter_startsection(elf, ".yoink", SHT_PROGBITS,
                          SHF_ALLOC | SHF_EXECINSTR);
-  elfwriter_yoink(elf, "__zip_start");
-  elfwriter_yoink(elf, "__zip_end");
+  elfwriter_yoink(elf, yoink_);
   elfwriter_finishsection(elf);
 }
 

tool/emacs/cosmo-asm-mode.el

@@ -337,4 +337,10 @@
   (add-hook 'asm-mode-hook 'cosmo-asm-supplemental-hook)
   (setq asm-font-lock-keywords cosmo-asm-font-lock-keywords))
 
+;; Make -*-unix-assembly-*- mode line work correctly.
+;; TODO(jart): Would be nice to use GitHub's name instead of changing asm-mode.
+(defun unix-assembly-mode ()
+  (interactive)
+  (asm-mode))
+
 (provide 'cosmo-asm-mode)

tool/scripts/install-emacs.sh

@@ -6,7 +6,7 @@ sudo apt build-dep emacs
 cd "$HOME"
 export CFLAGS="-O2"
 rm -rf emacs-26.3
-wget http://mirrors.kernel.org/gnu/emacs/emacs-26.3.tar.gz
+wget https://mirrors.kernel.org/gnu/emacs/emacs-26.3.tar.gz
 tar xf emacs-26.3.tar.gz
 cd emacs-26.3
 ./configure