save point

src/yait.c

@@ -8,31 +8,33 @@
 
 // Usage: yait [OPTION]... <PROJECT>
 
+#include <errno.h>
 #include <getopt.h>
+#include <limits.h>
 #include <pwd.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <limits.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdarg.h>
 #include <string.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
-#include <proginfo.h>
-#include <err.h>
-#include <str_dup.h>
-#include <yait.h>
-#include <config.h>
+#include "../config.h"
+#include "../lib/err.h"
+#include "../lib/fs.h"
+#include "../lib/xmem.h"
+#include "../lib/proginfo.h"
+#include "../lib/textc.h"
 
-#include "name.h"
+typedef enum { MIT, GPL, BSD, UNL } licence_t;
 
 static const struct option longopts[] = {
-        { "author", required_argument, 0, 'a' },
-        { "licence", required_argument, 0, 'l' },
-        { "quiet", no_argument, 0, 'q' },
-        { "force", no_argument, 0, 'f' },
-        { 0, 0, 0, 0 } };
+	{ "author", required_argument, 0, 'a' },
+	{ "licence", required_argument, 0, 'l' },
+	{ "quiet", no_argument, 0, 'q' },
+	{ "force", no_argument, 0, 'f' },
+	{ 0, 0, 0, 0 }
+};
 
 static int exit_status;
 
@@ -88,39 +90,41 @@ int main(int argc, char **argv)
 {
 	int optc;
 	int lose = 0;
+	char *package;
 	set_prog_name(argv[0]);
 
 	exit_status = EXIT_SUCCESS;
 	bool quiet = false;
 	bool force = false;
-
-	manifest_t manifest = {
-		.author = get_name(),
-		.editor = NULL,
-		.licence = BSD,
-		.project = "Project",
-	};
+	bool editor = false;
+	const char *author = get_name();
+	licence_t licence;
 
 	parse_standard_options(argc, argv, print_help, print_version);
 
-	while ((optc = getopt_long(argc, argv, "a:l:Eqf", longopts, NULL)) != -1)
+	while ((optc = getopt_long(argc, argv, "a:l:Eqf", longopts, NULL)) !=
+	       -1)
 		switch (optc) {
 		case 'l':
 			if (!strcmp(optarg, "list")) {
-				puts("BSD\nGPL\nMIT");
+				puts("BSD\nGPL\nMIT\nUNL");
 				exit(EXIT_SUCCESS);
 			}
 			if (!strcmp(optarg, "GPL"))
-				manifest.licence = GPL;
+				licence = GPL;
 			else if (!strcmp(optarg, "MIT"))
-				manifest.licence = MIT;
+				licence = MIT;
+			else if (!strcmp(optarg, "BSD"))
+				licence = BSD;
+			else if (!strcmp(optarg, "UNL"))
+				licence = UNL;
 			else {
-				puts("BSD\nGPL\nMIT");
+				puts("BSD\nGPL\nMIT\nUNL");
 				exit(EXIT_FAILURE);
 			}
 			break;
 		case 'E':
-			manifest.editor = getenv("EDITOR");
+			editor = true;
 			break;
 		case 'q':
 			quiet = true;
@@ -131,16 +135,266 @@ int main(int argc, char **argv)
 		default:
 			lose = 1;
 		}
-	if (lose || optind < argc) {
-		errorf("extra operand: %s", argv[optind]);
-		usage();
+	if (lose) {
+		emit_try_help();
 	}
 
+	if (optind >= argc) {
+		fatalf("no project name provided");
+	}
+
+	if (optind + 1 < argc) {
+		errorf("extra operand: %s", argv[optind + 1]);
+		emit_try_help();
+	}
+
+	package = str_dup(argv[optind]);
+
+	size_t len = strlen(package);
+	char *pdir = xmalloc(len + 2);
+	memcpy(pdir, package, len);
+	pdir[len] = '/';
+	pdir[len + 1] = '\0';
+
+	fs_write("README", "\
+This is the README for the GCK %s distribution.\n\
+%s does a thing.\n\
+\n\
+  Copyright (C) %d GCK.\n\
+\n\
+  Copying and distribution of this file, with or without modifications\n\
+  are permitted in any medium without royalty provided the copyright\n\
+  notice and this notice are preserved.\n\
+\n\
+See the files ./INSTALL* for building and installation instructions.\n\
+\n\
+Bug reports:\n\
+ Please include enough information for the maintainers to reproduce the\n\
+ problem. Generally speaking, that means:\n\
+- the contents of any input files necessary to reproduce the bug\n\
+  and command line invocations of the program(s) involved (crucial!).\n\
+- a description of the problem and any samples of the erroneous output.\n\
+- the version number of the program(s) involved (use --version).\n\
+- hardware, operating system, and compiler versions (uname -a).\n\
+- unusual options you gave to configure, if any (see config.mak).\n\
+- anything else that you think would be helpful.\n\
+\n\
+See README-dev for information on the development environment -- any\n\
+interested parties are welcome. If you're a programmer and wish to\n\
+contribute, this should get you started. If you're not a programmer,\n\
+your help in writing test cases, checking documentation against the\n\
+implementation, etc., would still be very much appreciated.\n\
+\n\
+GCK %s is free software. See the file COPYING for copying conditions.\n\
+\n",
+		 package, package, YEAR, package);
+
+	fs_write("INSTALL", "\
+Installation Instructions\n\
+*************************\n\
+\n\
+Copyright (C) %d GCK.\n\
+\n\
+   Copying and distribution of this file, with or without modification,\n\
+are permitted in any medium without royalty provided the copyright\n\
+notice and this notice are preserved.  This file is offered as-is,\n\
+without warranty of any kind.\n\
+\n\
+Basic Installation\n\
+==================\n\
+\n\
+   Briefly, the shell command `./configure && make && make install` should\n\
+configure, build, and install this package. The following more-detailed\n\
+instruction are generic; see the `README` file for instructions specific to\n\
+this package.\n\
+\n\
+   The `configure` shell script attempts to guess correct values for\n\
+various system-dependent variables used during compilation. It uses\n\
+those values within a `Makefile` to build for that POSIX system as\n\
+defined by `config.mak` which was generated by `configure`.\n\
+\n\
+Compilers and Options\n\
+=====================\n\
+\n\
+  Some systems require unusal options for compilation or linking that\n\
+the `configure` script does not know about. If you run into an issue\n\
+run `./configure --help` to figure out what you can do to fix the\n\
+behavoir.\n\
+\n\
+Installation Names\n\
+==================\n\
+\n\
+  By default, `make install` installs the package's command under\n\
+`/usr/local/bin`. You can specify an installation prefix other than `/usr/local/`\n\
+by giving `configure` the option `--prefix=PREFIX` to `configure`, the package uses\n\
+PREFIX as the prefix for installation programs and libraries.\n\
+Documentation and other data files still use the regular prefix.\n\
+\n\
+`configure` Invokation\n\
+======================\n\
+\n\
+  `configure` recongizes the following options to control its operations.\n\
+\n\
+  `--help`\n\
+     Prints a summary of all the options to `configure`, and exits.\n\
+  `--prefix=PREFIX`\n\
+     Sets the installation prefix.\n\
+  `CFLAGS`\n\
+    Sets the flags used during compilation.\n\
+\n\
+`configure` also accepts some other options. Run `configure --help` for more\n\
+details\n\
+",
+		 YEAR);
+
+	fs_write("AUTHORS", "\
+Authors of GCK yait.\n\
+\n\
+  Copyright (C) 2025 GCK.\n\
+\n\
+  Copying and distribution of this file, with or without modification,\n\
+  are permitted in any medium without royalty provided the copyright\n\
+  notice and this notice are preserved.\n\
+\n\
+Also see the THANKS files.\n\
+\n\
+%s\n\
+",
+		 author);
+
+	fs_write("THANKS", "\
+Additional contributors to GCK %s.\n\
+\n\
+  Copyright (C) %d GCK.\n\
+\n\
+  Copying and distribution of this file, with or without modification,\n\
+  are permitted in any medium without royalty provided the copyright\n\
+  notice and this notice are preserved.\n\
+\n\
+Thanks to:\n\
+\n\
+    GCK yait for project initialization.\n\
+\n\
+See also the AUTHORS file.\n\
+			",
+		 package, YEAR);
+
+	fs_write("config.h", "\
+#ifndef CONFIG_H\n\
+#define CONFIG_H\n\
+\n\
+/* Program information */\n\
+#define PROGRAM \"%s\"\n\
+#define AUTHORS \"GCK\"\n\
+#define VERSION \"beta\"\n\
+#define YEAR %d\n\
+\n\
+#endif\n\
+			",
+		 package, YEAR);
+
+	fs_write("configure", "\
+#!/bin/sh\n\
+\n\
+usage() {\n\
+cat <<EOF\n\
+Usage: $0 [OPTION]... [VAR=VALUE]...\n\
+\n\
+To assign environment variables (e.g., CC, CFLAGS...), specify them as\n\
+VAR=VALUE.\n\
+\n\
+CC              C compiler command [detected]\n\
+CFLAGS          C compiler flags [-g, ...]\n\
+LDFLAGS         C linker flags\n\
+\n\
+--prefix=<path> Set the install path\n\
+--debug         Flags for debug build, overrides CFLAGS\n\
+\n\
+EOF\n\
+exit 0\n\
+}\n\
+\n\
+cmdexists() { type \"$1\" >/dev/null 2>&1 ; }\n\
+trycc() { [ -z \"$CC\" ] && cmdexists \"$1\" && CC=$1 ; }\n\
+\n\
+prefix=/usr/local\n\
+CFLAGS=\"-std=c23\"\n\
+LDFLAGS=\n\
+CC=\n\
+\n\
+printf \"checking for C compiler... \"\n\
+trycc gcc\n\
+trycc clang\n\
+trycc cc\n\
+trycc icx\n\
+printf \"%s\n\" \"$CC\"\n\
+\n\
+DEBUG=false\n\
+for arg; do\n\
+case \"$arg\" in\n\
+--help|-h) usage ;;\n\
+--prefix=*) prefix=${arg#*=} ;;\n\
+--debug) DEBUG=true ;;\n\
+CFLAGS=*) CFLAGS=${arg#*=} ;;\n\
+LDFLAGS=*) LDFLAGS=${arg#*=} ;;\n\
+CC=*) CC=${arg#*=} ;;\n\
+*) printf \"Unrecognized option %s\n\" \"$arg\" ;;\n\
+esac\n\
+done\n\
+\n\
+printf \"checking whether C compiler works... \"\n\
+tmpc=\"$(mktemp -d)/test.c\"\n\
+echo \"typedef int x;\" > \"$tmpc\"\n\
+if output=$($CC $CFLAGS -c -o /dev/null \"$tmpc\" 2>&1); then\n\
+printf \"yes\n\"\n\
+else\n\
+printf \"no; %%s\n\" \"$output\"\n\
+exit 1\n\
+fi\n\
+\n\
+GDEBUGCFLAGS=\"-std=c23 -O0 -g3 -Wall -Wextra -Wpedantic -Werror -Wshadow -Wdouble-promotion -Wformat=2 -Wnull-dereference -Wconversion -Wsign-conversion -Wcast-qual -Wcast-align=strict -Wpointer-arith -Wstrict-overflow=5 -Wstrict-aliasing=2 -Wundef -Wunreachable-code -Wswitch-enum -fanalyzer -fsanitize=undefined,address -fstack-protector-strong -D_FORTIFY_SOURCE=3\"\n\
+CDEBUGCFLAGS=\"-std=gnu2x -O0 -g3 -Wall -Wextra -Wpedantic -Werror -Wshadow -Wdouble-promotion -Wformat=2 -Wnull-dereference -Wconversion -Wsign-conversion -Wcast-qual -Wcast-align=strict -Wpointer-arith -Wstrict-overflow=5 -Wstrict-aliasing=2 -Wundef -Wunreachable-code -Wswitch-enum -fanalyzer -fsanitize=undefined,address -fstack-protector-strong -D_FORTIFY_SOURCE=3\"\n\
+\n\
+if [ -z \"$DEBUG\" ]; then\n\
+case \"$CC\" in\n\
+gcc) CFLAGS=\"$GDEBUGFLAGS\";;\n\
+clang) CFLAGS=\"$CDEBUGFLAGS\";;\n\
+*) ;;\n\
+esac\n\
+else\n\
+case \"$CC\" in\n\
+gcc) ;;\n\
+clang) ;;\n\
+*) ;;\n\
+esac\n\
+fi\n\
+\n\
+case \"$OSTYPE\" in\n\
+cygwin|msys) \n\
+echo \"enabling windows specific flags\"\n\
+CFLAGS=\"-v $CFLAGS\"\n\
+;;\n\
+esac\n\
+\n\
+printf \"creating config.mak... \"\n\
+{\n\
+printf \"PREFIX=%%s\n\" \"$prefix\"\n\
+printf \"CFLAGS=%%s\n\" \"$CFLAGS\"\n\
+printf \"LDFLAGS=%%s\n\" \"$LDFLAGS\"\n\
+printf \"CC=%%s\n\" \"$CC\"\n\
+} > config.mak\n\
+printf \"done\n\"\n\
+");
+
 	char *cwd = getcwd(NULL, 0);
-	if (!cwd) {
+	if (cwd == NULL) {
 		fatalfa(errno);
 	}
-	fprintf(stderr, "Created %s at\n %s\n", manifest.project, cwd);
+
+	if (!quiet) {
+		fprintf(stderr, "Created %s at\n %s\n", package, cwd);
+	}
+
 	free(cwd);
 
 	return exit_status;
@@ -168,15 +422,13 @@ Generates an optionated C project.\n",
 	exit(exit_status);
 }
 
-/* Print version and copyright information.  */
-
 static void print_version()
 {
-  printf("%s %s %d\n", prog_name, VERSION, COMMIT);
-	
-  printf("Copyright (C) %d GCK.\n", YEAR);
+	printf("%s %s %d\n", prog_name, VERSION, COMMIT);
 
-  puts("This is free software: you are free to change and redistribute it.");
-  puts("There is NO WARRNTY, to the extent permitted by law.");
-  exit(exit_status);
+	printf("Copyright (C) %d GCK.\n", YEAR);
+
+	puts("This is free software: you are free to change and redistribute it.");
+	puts("There is NO WARRNTY, to the extent permitted by law.");
+	exit(exit_status);
 }