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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

128
README
View File

@ -1,96 +1,66 @@
--- Bake ---
--- README
Bake scripts into files.
A tool to run embedded scripts.
Executes @BAKE to the end of the line or until @STOP within in any given file.
Bootstrap with ./shake bake.c
then compile further with ./bake,
install by running ./install.sh
You may have multi-line commands, by either including a leading @STOP or by
ending each line with a backslash.
---
The execution takes place at the root of the target file, so if you have:
`test/file.c', and then execution takes place at `test' and the file is simply
regarded as `file.c'.
bake [-chln] [-s <n>] <FILENAME> [ARGS...]; version 20240804
you may see a real example in the primary and only source file: `bake.c'. this
is not targeted toward any language and should be fairly flexible, especially
when multi-line comments are available. You should always consider your usecase
before using a tool like this. Bake is not an all-in-one solution, nor is it
designed to be a sophisticated build system, consider something like GNU Make or
Meson instead.
Bake is a simple tool meant to execute embedded shell commands within
any file. It executes with /bin/sh the command after a "@BAKE " to
the end of the line (a UNIX newline: '\n').
Binary files (files that contain characters < ' ' or > '~') are supported.
It expands some macros,
@NAME - filename
@SHORT - shortened filename
@ARGS - other arguments to the program
@LINE - line number at the selected @BAKE
Manpages are included: bake(1) shake(1)
All macros can be exempted by prefixing them with a backslash,
which'll be subtracted in the expansion. multi-line commands may be
done by a leading backslash, which are NOT subtracted.
--- Building ---
It has five options, this message (-h, --help); prevents the execution
of the shell command (-n, --dry-run); disable color (-c, --color); list
(-l, --list) and select (-s<n>, --select <n>) which respectively lists
all @BAKE commands and select & run the Nth command.
Bootstrapping may be done with Shake, simply run `./shake ./bake.c'
It roots the shell execution in the directory of the given file.
Or simply run `install.sh', you'll need to be a privileged user to install the
files. See the file's content for more details regarding the installation.
Licensed under the public domain.
--- Macro Extension ---
---
Macro provides various descriptive factors about the current context:
Shake
@FILENAME : Filename of the baked file (abc.x.txt)
@SHORT : Shortened version of the Filename (^-> abc.x)
@ARGS : the remaining arguments to Bake
$@, $*, $+, are respectively mapped to @FILENAME, @SHORT, and @ARGS. They have
been partially deprecated, however they'll never be removed, use them if you'd
like.
They are most useful for a general template command, such as:
@BAKE cc @FILENAME -o @{@SHORT} @ARGS
Backslash, while otherwise ignored, will be respected at the end of the line to
concatenate lines together or if added to before any of listed macros will yield
the unfettered text. \SPECIAL_NAME will result in SPECIAL_NAME in the executed
shell command. Backslashes are applicable to all symbols used by Bake.
--- Expunge Extension ---
Removes any singular file or directory non recursively defined within @{...},
this has no effect on the normal processing of the statement and is macro'd out
before it is executed.
This is useful in such cases that you create a temporary file or output file
that may be later recreated or may need to be manually updated. It is most
useful for simple scrubbing of outputs. You could have a directory of toy
programs and wish to clean them all up, and using a command like:
for i in `ls *.c`; do bake -x $i; done
This is of course can also be done with another UNIX command like the following,
assuming the other files outside of the regexp are not important:
ls | egrep -v '.+\.[ch]' | xargs rm
This feature was suggested by the original author of Shake, blame him for this.
--- Options ---
Options must come before the filename, and may be merged together, such as -cxn.
-v, --version: Display versioning and licensing information.
-h, --help: Display the help message, similarly to empty input.
-n, --dry-run: DRYRUN: does NOT run anything!
-x, --expunge: See above Expunge Extension section.
-c, --color: Disables color for a clean output.
--- Shake ---
Bake was inspired by the Bash-based Shake utility (formerly eMake, he liked my
suggestion for a name). It is included under authorization of its creator. The
original version of Shake may be found at:
Bake was inspired by the Bash-based Shake utility (formerly eMake, he
liked my suggestion for a name). It is included under authorization
of its creator. The original version of Shake may be found at:
<http://bis64wqhh3louusbd45iyj76kmn4rzw5ysawyan5bkxwyzihj67c5lid.onion/anon/shake>
Bake includes a modified Shake, both after installation and as a bootstrapper.
The modified version includes all features of Bake with the exceptions of
multi-line commands. It is not a general replacement for Bake.
Bake includes a modified Shake, both after installation and as a
bootstrapper. The modified version includes all features of Bake with
the exceptions of multi-line commands. It is not a general
replacement for Bake.
Bake is licensed under the GPLv3-only, See LICENSE.
Changelog
Bake was created on September 13th, 2023, and is complete as of 2024/03/02.
Bake was created on 2023/09/13, and is complete as of 2024/03/02.
24/08/04 - Updated version!
Bake is has been finished for a while but I thought the code could use
a checkup with GNU complexity, and this gave me a reason to rewrite
the important parts into a more sane manner. I had, at the same time,
been requested to extend Bake with the @LINE and list/select.
The changeset is large enough to possibly introduce bugs, and the last
version of Bake is, in my opinion, highly reliable. This newer version
needs to be tested a bit more to confirm full compatibility.
changes - Rewrite of the code; Removal of -x --expunge; Addition of
@LINE & @NAME, list, & select.

31
TODO
View File

@ -1,31 +0,0 @@
Select among the @BAKEs in a file? -- EXCESSIVE
This could be user-useful but would require an overhaul of the options.
Specify the shell environment somehow? -- NOT NEEDED
Could be nice, could be easy to implement with some different starter
command, such as @BAKE_ENV /bin/sh [command ...], but the power of
regular old /bin/sh alone should be enough for everything. Calling
a script is perfectly practical considering the rooting facilities.
Use Make or a script, this is nearing overkill.
Enviromental variables? -- WORKS, NO CHANGES NEEDED
No idea how the support is currently, should be fine. Anything more is
overkill, use Make if you need ?= and $(XXX).
Longer @EMBEDDED_BAKE handle? -- NOT NEEDED
Possibly a good idea for large binary files, but I would rather just
write the "Select among @BAKEs" feature than cheap out with an additional
handle. Besides, this is only useful for a gimick autonomous compile
feature. If I decided to write the @BAKE_ENV feature, I'd probably need
to also include a @EMBEDDED_BAKE_ENV which is a little ridiculous.
This will at best make me consider writing/using hashmaps, which would
be a techinical improvement, but definitely is overkill.
More Macros? -- NOT NEEDED
Luckily, with the rewrite to expand, this would be very easy to add.
But I don't know of any that wouldn't be overkill. If I ever think of
any that would be substantially useful, I might add them.
Kill globals. -- DONE
I'd need to first isolate them into bake_expand, which is a bit of a
pain but a thing I'll definitely do.

60
bake.1
View File

@ -1,33 +1,35 @@
.TH BAKE "1" "April 2024" "bake 20240413" "User Commands"
.TH BAKE "1" "August 2024" "bake 20240804" "User Commands"
.SH NAME
.B bake
\- file embeddable scripts
.SH SYNOPSIS
.B bake
[option] target\-file [\fBarguments\fP ...]
[\-chln] [\-s <n>] <FILENAME> [ARGS...]
.SH DESCRIPTION
Use the format \fB@BAKE\fP cmd ... within the target\-file, this will execute the
rest of line, or until the first \fB@STOP\fR marker.
bake is a simple tool meant to execute embedded shell commands within
any file. It executes with /bin/sh the command after a "\fB@BAKE\fP " to
the end of the line (a UNIX newline: '\fB\\n\fP').
This format may be embedded within \fBbinary files\fP, or any file where no unwanted preceding
instance of
.B @BAKE
appears.
instance of \fB@BAKE\fP appears.
\fBShake\fP does not support some features of \fBBake\fP, such as \fB@STOP\fP or \fBbinary files\fP,
please avoid its use.
It roots the shell execution in the directory of the given file.
Options must always be put first, and may be merged together.
Options must always be put first, and short options may be merged together.
.HP
\-v \-\-version, \-h \-\-help, \fB\-n \-\-dry\-run\fP, \fB\-x \-\-expunge\fP,
\fB\-c \-\-color\fP
\fB\-c \-\-color\fP, \-h \-\-help, \fB\-n \-\-dry\-run\fP, \fB\-l \-\-list\fP, \fB\-s \-\-select\fP <\fBn\fP>
.PP
Expansions
Macros
These symbols will expand to their counterpart before execution.
All macros can be exempted by prefixing them with a backslash,
which'll be subtracted in the expansion. multi-line commands may be
done by a leading backslash, which are NOT subtracted.
These macros will expand to their counterpart before execution.
.TP
.B @FILENAME, $@
.B @FILENAME, @NAME, $@
returns target\-file (abc.x.txt)
.TP
.B @SHORT, $*
@ -36,35 +38,21 @@ returns target\-file without suffix (abc.x.txt \-> abc.x)
.B @ARGS, $+
returns
.B arguments
.TP
.B @LINE
returns the line number
.PP
Additional Features And Notes
Shell execution may be disabled with the
.B -n or --dry-run
option.
Shell execution may be disabled with the \fB-n\fP or \fB--dry-run\fP option.
\fB@{\fPEXPUNGE_THIS_FILE\fB}\fP is a inline block to delete files or
directories, non-recursive, only one file per block, removed from left to right.
Has no influence on the normal command execution. The deletion only occurs if
you use the
.B -x or --expunge
option.
Colors may be disabled with the
.B -c or --color
option.
\\SPECIAL_NAME will result in SPECIAL_NAME in the executed shell
command. Backslashes are applicable to all symbols used by Bake, they are
ignored otherwise.
Colors may be disabled with the \fB-c\fP or \fB--color\fP option.
.SH EXAMPLE
.\" SRC BEGIN (example.c)
.EX
// example.c
// @BAKE cc -o @{@SHORT} @FILENAME @ARGS
// or, simply, @BAKE cc -o @{$*} $@ $+
// example.c @BAKE cc -o @SHORT @NAME @ARGS
#include <stdio.h>
int main (void) {
puts("Hello.");
@ -73,4 +61,4 @@ int main (void) {
.EE
.SH COPYRIGHT
.PP
Licensed under the GNU Public License version 3 only, see <https://www.gnu.org/licenses/gpl\-3.0\-standalone.html>.
Licensed under the public domain.

837
bake.c
View File

@ -1,21 +1,12 @@
/* bake.c - Ever burned a cake?
* Copyright 2023 Emil Williams
*
* Licensed under the GNU Public License version 3 only, see LICENSE.
*
* @BAKE cc -std=c89 -O2 @FILENAME -o @{@SHORT} @ARGS @STOP
*/
// @BAKE cc -std=c99 -O2 -Wall -Wextra -Wpedantic -Wno-implicit-fallthrough -o @SHORT @FILENAME @ARGS
#define _GNU_SOURCE
#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <locale.h>
#include <limits.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -23,608 +14,328 @@
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
#include <limits.h>
#include "config.h"
#define BUFFER_SIZE (1 << 12)
#define VERSION "20240413"
#define START ("@" "BAKE" " ")
#define STOP ("@" "STOP")
#define HELP \
BOLD "[option] target-file" RESET " [" GREEN "arguments" RESET " ...]\n" \
"Use the format `" BOLD "@BAKE" RESET " cmd ...' within the target-file, this will execute the\n" \
"rest of line, or if found within the file, until the " BOLD "@STOP" RESET " marker.\n"
#define AUTONOMOUS_COMPILE 0
#define DESC \
"Options [Must always be put first, may be merged together]\n" \
"\t" DIM "-v --version" RESET ", " DIM "-h --help" RESET ", " \
BOLD "-n --dry-run" RESET ", " BOLD "-x --expunge" RESET ", " \
BOLD "-c --color\n" RESET \
"Expansions\n" \
"\t" YELLOW "@FILENAME" RESET " returns target-file (abc.x.txt)\n" \
"\t" YELLOW "@SHORT " RESET " returns target-file without suffix (^-> abc.x)\n" \
"\t" YELLOW "@ARGS " RESET " returns " GREEN "arguments" RESET "\n" \
"Additional Features And Notes\n" \
"\t" YELLOW "@{" RESET BOLD "EXPUNGE_THIS_FILE" YELLOW "}" RESET \
" inline region to delete this or many files or directories,\n" \
"\tnon-recursive, only one file per block, removed from left to right. This has no\n" \
"\tinfluence on the normal command execution.\n" \
"\t" YELLOW "\\" RESET \
"SPECIAL_NAME will result in SPECIAL_NAME in the executed shell command.\n" \
"Backslashing is applicable to all meaningful symbols in Bake, it is ignored otherwise."
#define ENABLE_COLOR 1
#define COPYRIGHT "2023 Emil Williams"
#define LICENSE "Licensed under the GNU Public License version 3 only, see LICENSE."
#define FILENAME_LIMIT (FILENAME_MAX)
#define BAKE_ERROR 127
enum {
BAKE_UNRECOGNIZED,
BAKE_MISSING_SUFFIX
};
enum {
BAKE_RUN = 0,
BAKE_NORUN = (1 << 0),
BAKE_EXPUNGE = (1 << 1)
};
#define ARRLEN(a) (sizeof(a) / sizeof(a[0]))
#if INCLUDE_AUTONOMOUS_COMPILE
__attribute__((__section__(".text"))) static char autonomous_compile[] =
"@BAKE cc -std=c89 -O2 $@.c -o $@ $+ @STOP";
#endif
static int bake_errno;
typedef struct {
size_t len;
char * buf;
} string_t;
typedef string_t map_t;
/*** nocolor printf ***/
#if ENABLE_COLOR
# define color_printf(...) color_fprintf(stdout, __VA_ARGS__)
/* not perfect, too simple, doesn't work with a var, only a literal. */
# define color_puts(msg) color_fprintf(stdout, msg "\n")
int color = ENABLE_COLOR;
static char * expand(char * buf, char * macro, char * with);
color_fprintf(FILE * fp, char * format, ...) {
va_list ap;
char * buf;
va_start(ap, format);
if (!color) {
vasprintf(&buf, format, ap);
if (buf) {
expand(buf, RED, "");
expand(buf, GREEN, "");
expand(buf, YELLOW, "");
expand(buf, DIM, "");
expand(buf, BOLD, "");
expand(buf, RESET, "");
fwrite(buf, strlen(buf), 1, fp);
}
free(buf);
} else {
vfprintf(fp, format, ap);
}
va_end(ap);
}
#if ENABLE_COLOR == 1
# define RED "\033[91m"
# define GREEN "\033[92m"
# define YELLOW "\033[93m"
# define BOLD "\033[1m"
# define RESET "\033[0m"
#elif ENABLE_COLOR
# define RED "\033[91;5m"
# define GREEN "\033[96;7m"
# define YELLOW "\033[94m"
# define BOLD "\033[1;4m"
# define RESET "\033[0m"
#else
# define color_printf(...) fprintf(stdout, __VA_ARGS__)
# define color_puts(msg) puts(msg)
# define RED
# define GREEN
# define YELLOW
# define BOLD
# define RESET
#endif
/*** root ***/
#define ARRLEN(x) (sizeof (x) / sizeof (x [0]))
#if AUTONOMOUS_COMPILE
__attribute__((__section__(".text"))) static char autonomous_compile [] =
"@BAKE" " cc -w @FILENAME.c -o @FILENAME @ARGS\n";
#endif
static void
swap(char * a, char * b) {
swap (char * a, char * b) {
*a ^= *b;
*b ^= *a;
*a ^= *b;
}
static int
root(char ** rootp) {
char x[1] = {'\0'};
root (char ** rootp) {
char x [1] = {'\0'};
char * root = *rootp;
size_t len = strlen(root);
size_t len = strlen (root);
int ret;
while (len && root[len] != '/') {
--len;
}
if (!len) {
return 0;
}
swap(root + len, x);
ret = chdir(root);
swap(root + len, x);
while (len && root [len] != '/') { --len; }
if (!len) { return 0; }
swap (root + len, x);
ret = chdir (root);
swap (root + len, x);
*rootp += len + 1;
return ret;
}
/*** find region in file ***/
static map_t
map(char * fn) {
struct stat s;
int fd;
map_t m;
m.buf = NULL;
m.len = 0;
fd = open(fn, O_RDONLY);
if (fd != -1) {
if (!fstat(fd, &s)
&& s.st_mode & S_IFREG
&& s.st_size) {
m.len = (size_t) s.st_size;
m.buf = (char *) mmap(NULL, m.len, PROT_READ, MAP_SHARED, fd, 0);
}
close(fd);
}
return m;
}
static char *
find(char * buf, char * x, char * end) {
size_t xlen = strlen(x);
char * start = buf;
for (; buf <= end - xlen; ++buf) {
if (!strncmp(buf, x, xlen)) {
if (start < buf && buf[-1] == '\\') {
continue;
} else {
return buf;
}
}
}
return NULL;
}
static char *
get_region(string_t m, char * findstart, char * findstop) {
char * buf = NULL, * start, * stop, * end = m.len + m.buf;
start = find(m.buf, findstart, end);
if (start) {
start += strlen(findstart);
#ifdef REQUIRE_SPACE
if (!isspace(*start)) {
bake_errno = BAKE_MISSING_SUFFIX;
return NULL;
}
#endif /* REQUIRE_SPACE */
stop = find(start, findstop, end);
if (!stop) {
stop = start;
while (stop < end && *stop != '\n') {
if (stop[0] == '\\'
&& stop[1] == '\n') {
stop += 2;
}
++stop;
}
}
buf = strndup(start, (size_t)(stop - start));
}
return buf;
}
static char *
file_get_region(char * fn, char * start, char * stop) {
map_t m = map(fn);
char * buf = NULL;
if (m.buf) {
buf = get_region(m, start, stop);
munmap(m.buf, m.len);
}
return buf;
}
/*** g_short, g_all ***/
static char *
shorten(char * fn) {
shorten (char * filename) {
size_t i, last, len;
static char sh[FILENAME_LIMIT];
len = strlen(fn);
static char sh [FILENAME_MAX];
len = strlen (filename);
for (last = i = 0; i < len; ++i) {
if (fn[i] == '.') {
last = i;
}
if (filename [i] == '.') { last = i; }
}
last = last ? last : i;
strncpy(sh, fn, last);
sh[last] = '\0';
strncpy (sh, filename, last);
sh [last] = '\0';
return sh;
}
static char *
all_args(size_t argc, char ** argv) {
char * all = NULL;
all_args (size_t argc, char ** argv) {
static char buffer [BUFFER_SIZE] = {0};
if (argc > 0) {
size_t i, len = argc;
for (i = 0; i < argc; ++i) {
len += strlen(argv[i]);
}
all = malloc(len + 1);
all[len] = '\0';
for (i = 0; i < argc; ++i) { len += strlen (argv [i]); }
buffer [len] = '\0';
for (len = 0, i = 0; i < argc; ++i) {
strcpy(all + len, argv[i]);
len += strlen(argv[i]) + 1;
if (i + 1 < argc) {
all[len - 1] = ' ';
}
}
}
return all ? all : calloc(1, 1);
strcpy (buffer + len, argv [i]);
len += strlen (argv [i]) + 1;
if (i + 1 < argc) { buffer [len - 1] = ' '; }
}}
return buffer;
}
/*** insert, expand, bake_expand ***/
static void
insert(char * str, char * new, size_t slen, size_t nlen, size_t shift) {
memmove(str + nlen, str + shift, slen + 1 - shift);
memcpy(str, new, nlen);
}
static char *
expand(char * buf, char * macro, char * with) {
ssize_t i,
blen = strlen(buf),
mlen = strlen(macro),
wlen = strlen(with),
nlen;
fflush(stdout);
for (i = 0; i < blen - mlen + 1; ++i) {
if (!strncmp(buf + i, macro, mlen)) {
if (i && buf[i - 1] == '\\') {
memmove(buf + i - 1, buf + i, blen - i);
buf[blen - 1] = '\0';
} else {
nlen = wlen - mlen + 1;
if (nlen > 0) {
buf = realloc(buf, blen + nlen);
}
insert(buf + i, with, blen - i, wlen, mlen);
blen += (nlen > 0) * nlen;
}
}
}
return buf;
}
static char *
bake_expand(char * buf, char * filename, int argc, char ** argv) {
enum {
MACRO_FILENAME,
MACRO_SHORT,
MACRO_ARGS,
MACRO_STOP,
MACRO_NONE
};
char * macro[MACRO_NONE],
* macro_old[MACRO_STOP],
* global[MACRO_NONE];
size_t i;
macro[MACRO_FILENAME] = "@FILENAME";
macro[MACRO_SHORT ] = "@SHORT";
macro[MACRO_ARGS ] = "@ARGS";
macro[MACRO_STOP ] = "@STOP";
macro_old[MACRO_FILENAME] = "$@";
macro_old[MACRO_SHORT ] = "$*";
macro_old[MACRO_ARGS ] = "$+";
global[MACRO_FILENAME] = filename;
global[MACRO_SHORT ] = shorten(filename);
global[MACRO_ARGS ] = all_args((size_t) argc, argv);
global[MACRO_STOP ] = "";
#if NEW_MACROS
for (i = 0; i < ARRLEN(macro); ++i) {
buf = expand(buf, macro[i], global[i]);
}
#endif
#if OLD_MACROS
for (i = 0; i < ARRLEN(macro_old); ++i) {
buf = expand(buf, macro_old[i], global[i]);
}
#endif
free(global[MACRO_ARGS]);
return buf;
}
static void
remove_expand(char * buf, char * argv0, int rm, char * start, char * stop) {
size_t i, f, end = strlen(buf);
size_t startlen = strlen(start), stoplen = strlen(stop);
char x[1] = {'\0'};
for (i = 0; i < end; ++i) {
if (!strncmp(buf + i, start, startlen)) {
if (buf + i > buf && buf[i - 1] == '\\') {
continue;
}
for (f = i; f < end; ++f) {
if (!strncmp(buf + f, stop, stoplen)) {
if (buf + f > buf && buf[f - 1] == '\\') {
continue;
}
insert(buf + f, "", end - f, 0, 1);
i += startlen;
if (rm & BAKE_EXPUNGE) {
swap(buf + i + (f - i), x);
#if !ENABLE_EXPUNGE_REMOVE
color_printf("%s: %sremoving '%s'\n",
argv0, rm & BAKE_NORUN ? "not " : "", buf + i);
if (!(rm & BAKE_NORUN)) {
remove(buf + i);
}
#else
color_printf("%s: not removing '%s'\n", argv0, buf + i);
#endif
swap(buf + i + (f - i), x);
}
goto next;
}
}
goto stop;
}
next:;
}
stop:
expand(buf, start, "");
}
/*** strip, run ***/
/* Strips all prefixing and leading whitespace.
* Except if the last character beforehand is a newline. */
static size_t
strip(char * buf) {
size_t i = strlen(buf);
if (!i) {
return 0;
lines (char * buffer, size_t off) {
size_t line = 1;
char * end = buffer + off;
while (buffer < end) {
if (*buffer == '\n') { ++line; }
++buffer;
}
while (i && isspace(buf[i - 1])) {
--i;
}
buf[i] = '\0';
for (i = 0; isspace(buf[i]); ++i);
if (i && buf[i - 1] == '\n') {
--i;
}
return i;
return line;
}
static int
run(char * buf, char * argv0) {
static char *
expand (char * buffer, size_t length, char ** pairs, size_t count) {
static char expanded [BUFFER_SIZE] = {0};
size_t old, new, i, f, off = 0;
/* I need to test the bounds checking here, it'll crash normally if this provision doesn't do anything, though. */
length &= (1 << 12) - 1;
for (f = 0; f < length; ++f) {
for (i = 0; i < count; i += 2) {
old = strlen (pairs [i]);
new = strlen (pairs [i + 1]);
if (memcmp (buffer + f - off, pairs [i], old) == 0) {
if (f && buffer [f - off - 1] == '\\')
{ --f; --off; break; }
memcpy (expanded + f, pairs [i + 1], new);
f += new;
length += new - old;
off += new - old;
break;
}}
expanded [f] = buffer [f - off];
}
expanded [f] = '\0';
return expanded;
}
static char *
getmap (char * filename, size_t * length) {
char * buffer = NULL;
int fd = open (filename, O_RDONLY);
if (fd != -1) {
struct stat s;
if (!fstat (fd, &s)
&& s.st_mode & S_IFREG
&& s.st_size) {
*length = (size_t) s.st_size;
buffer = (char *) mmap (NULL, s.st_size, PROT_READ, MAP_SHARED, fd, 0);
}
close (fd);
}
return buffer;
}
# define color_printf(...) color_fprintf (stdout, __VA_ARGS__)
/* not perfect, too simple, doesn't work with a var, only a literal. */
# define color_fputs(fp, msg) color_fprintf (fp, msg "\n")
# define color_puts(msg) color_fputs (stdout, msg)
static int color = ENABLE_COLOR;
static void
color_fprintf (FILE * fp, char * format, ...) {
va_list ap;
char * buf;
va_start (ap, format);
if (color) {
vfprintf (fp, format, ap);
va_end (ap);
return;
}
vasprintf (&buf, format, ap);
if (buf) {
char * expanded, * colors [] = {
YELLOW, "",
GREEN, "",
RED, "",
BOLD, "",
RESET, ""
};
size_t count = ARRLEN (colors);
expanded = expand (buf, strlen (buf), colors, count - 2);
expanded = expand (expanded, strlen (buf), colors + count - 2, 2);
fwrite (expanded, strlen (expanded), 1, fp);
}
free (buf);
va_end (ap);
}
/* -- */
int main (int argc, char ** argv) {
void help (void);
int off, run = 1, list = 0, select_input, select = 1;
size_t length, begin = 0, end = 0;
pid_t pid;
color_puts(BOLD GREEN "output" RESET ":\n");
if ((pid = fork()) == 0) {
execl("/bin/sh", "sh", "-c", buf, NULL);
return 0; /* execl overwrites the process anyways */
} else if (pid == -1) {
color_fprintf(stderr, BOLD RED "%s" RESET ": %s, %s\n",
argv0, "Fork Error", strerror(errno));
return BAKE_ERROR;
} else {
int status;
if (waitpid(pid, &status, 0) < 0) {
color_fprintf(stderr, BOLD RED "%s" RESET ": %s, %s\n",
argv0, "Wait PID Error", strerror(errno));
return BAKE_ERROR;
}
if (!WIFEXITED(status)) {
return BAKE_ERROR;
}
return WEXITSTATUS(status);
}
}
/*** main ***/
int
main(int argc, char ** argv) {
int ret = BAKE_RUN;
char * buf = NULL,
* filename,
* argv0;
argv0 = argv[0];
if (argc < 2) {
goto help;
}
while (++argv, --argc && argv[0][0] == '-') {
++argv[0];
if (argv[0][1] == '-') {
++argv[0];
if (!strcmp(argv[0], "help")) {
goto help;
} else if (!strcmp(argv[0], "version")) {
goto version;
} else if (!strcmp(argv[0], "expunge")) {
ret |= BAKE_EXPUNGE;
} else if (!strcmp(argv[0], "dry-run")) {
ret |= BAKE_NORUN;
} else if (!strcmp(argv[0], "color")) {
#if ENABLE_COLOR
color = 0;
#endif
} else {
goto help;
}
} else do {
switch (argv[0][0]) {
case 'h':
goto help;
case 'v':
goto version;
case 'x':
ret |= BAKE_EXPUNGE;
break;
case 'n':
ret |= BAKE_NORUN;
break;
#if ENABLE_COLOR
case 'c':
color = 0;
break;
#endif
case 0 :
goto next;
default :
color_puts("UNKNOWN");
goto help;
char line [10], expanded [BUFFER_SIZE], * buffer, * expandedp, * args, * shortened, * filename = NULL;
/* opts */
for (off = 1; off < argc; ++off) {
if (argv [off][0] != '-') { filename = argv [off]; ++off; break; }
if (argv [off][1] != '-') {
while (*(++argv [off]))
switch (argv [off][0]) {
case_select: case 's':
select = atoi (argv [off] + 1);
if (!select) {
++off;
if (off >= argc) { help (); }
select = atoi (argv [off]);
}
} while (++(argv[0]));
if (select) { goto next; }
case_help: default: case 'h': help ();
case_list: case 'l': list = 1;
case_dryrun: case 'n': run = 0; break;
case_color: case 'c': color = 0; break;
}
continue;
}
argv[off] += 2;
if (strcmp(argv[off], "select") == 0) { goto case_select; }
else if (strcmp(argv[off], "list") == 0) { goto case_list; }
else if (strcmp(argv[off], "dry-run") == 0) { goto case_dryrun; }
else if (strcmp(argv[off], "color") == 0) { goto case_color; }
else if (strcmp(argv[off], "help") == 0) { goto case_help; }
next:;
}
if (argc == 1 || !filename) { help (); }
select_input = select;
/* roots to directory of filename and mutates filename with the change */
root (&filename);
if (!argc)
{
color_fprintf(stderr, BOLD RED "%s" RESET
": No filename provided\n",
argv0);
return BAKE_ERROR;
buffer = getmap (filename, &length);
if (!buffer) {
color_fprintf (stderr, RED "%s" RESET ": Could not access '" BOLD "%s" RESET "'\n", argv [0], filename);
return 1;
}
for (begin = 0; (list || select) && begin < length - strlen (START); ++begin) {
if (memcmp (buffer + begin, START, strlen (START)) == 0) {
end = begin;
size_t stop = begin;
while (end < length && buffer[end] != '\n') { ++end; }
if (end && buffer [end - 1] == '\\') { ++end; }
while (stop < length - strlen (STOP)) {
if (memcmp(buffer + stop, STOP, strlen (STOP)) == 0) {
if (stop && buffer[stop - 1] != '\\') {
break;
}
}
++stop;
}
if (list) {
color_printf (GREEN "%d" RESET ": " BOLD, select++);
fwrite (buffer + begin, 1, end - begin, stdout);
color_puts (RESET);
} else { --select; }
}}
begin += strlen (START) - 1;
if (list) { return 0; }
if (end < begin) {
color_fprintf (stderr, RED "%s" RESET ": " BOLD "%d" RESET " is out of range\n", argv [0], select_input);
return 1;
}
filename = argv[0];
++argv, --argc;
/* expansion */
if (strlen(filename) > FILENAME_LIMIT) {
color_fprintf(stderr, BOLD RED "%s" RESET
": Filename too long (exceeds %d)\n",
argv0,
FILENAME_LIMIT);
return BAKE_ERROR;
args = all_args (argc - off, argv + off);
shortened = shorten (filename);
char * pair [] = {
"@FILENAME", filename,
"@FILE", filename,
"$@", filename,
"@SHORT", shortened,
"$*", shortened,
"@ARGS", args,
"$+", args,
"@LINE", line
};
size_t count = ARRLEN (pair);
snprintf (line, 16, "%lu", lines (buffer, begin));
expandedp = expand (buffer + begin, end - begin, pair, count);
memcpy(expanded, expandedp, BUFFER_SIZE);
munmap (buffer, length);
/* print and execute */
color_printf (GREEN "%s" RESET ": " BOLD "%s" RESET, argv [0], expanded);
if (!run) { return 0; }
color_fprintf (stderr, GREEN "output" RESET ":\n");
if ((pid = fork ()) == 0) {
execl ("/bin/sh", "sh", "-c", expanded, NULL);
return 0; /* execl overwrites the process anyways */
}
root(&filename);
buf = file_get_region(filename, START, STOP);
if (!buf) {
char * error[2];
error[0] = "File Unrecognized";
error[1] = "Found start without suffix spacing";
color_fprintf(stderr, BOLD RED "%s" RESET ": '" BOLD "%s" RESET "' %s.\n",
argv0, filename, errno ? strerror(errno) : error[bake_errno]);
return BAKE_ERROR;
if (pid == -1) {
color_fprintf (stderr, GREEN "%s" RESET ": %s, %s\n",
argv [0], "Fork Error", strerror (errno));
return 1;
}
buf = bake_expand(buf, filename, argc, argv);
color_printf(BOLD GREEN "%s" RESET ": %s\n", argv0, buf + strip(buf));
remove_expand(buf, argv0, ret, EXPUNGE_START, EXPUNGE_STOP);
if (!ret) {
ret = run(buf, argv0);
if (ret) {
color_printf(BOLD RED "result" RESET ": " BOLD "%d\n" RESET, ret);
}
} else { ret = 0; }
free(buf);
return ret;
help:
color_fprintf(stderr, YELLOW "%s" RESET ": %s\n", argv0, HELP DESC);
return BAKE_ERROR;
version:
color_fprintf(stderr,
YELLOW "%s" RESET ": v" VERSION "\n"
"Copyright " COPYRIGHT "\n" LICENSE "\n",
argv0);
return BAKE_ERROR;
/* reuse of run as status return */
if (waitpid (pid, &run, 0) < 0) {
color_fprintf (stderr, GREEN "%s" RESET ": " RED "%s" RESET ", %s\n",
argv [0], "Wait PID Error", strerror (errno));
return 1;
}
if (!WIFEXITED (run)) {
return 1;
}
return WEXITSTATUS (run);
}
void help (void) {
char * help =
BOLD "bake [-chln] [-s <n>] <FILENAME> [ARGS...]; version 20240804\n\n" RESET
GREEN "Bake" RESET " is a simple tool meant to execute embedded shell commands within\n"
"any file. It executes with /bin/sh the command after a \"" BOLD "@BAKE" RESET " \" to\n"
"the end of the line (a UNIX newline: '\\n').\n\n"
"It expands some macros,\n"
YELLOW "\t@NAME " RESET "- filename\n"
YELLOW "\t@SHORT " RESET "- shortened filename\n"
YELLOW "\t@ARGS " RESET "- other arguments to the program\n"
YELLOW "\t@LINE " RESET "- line number at the selected @BAKE\n\n"
"All macros can be exempted by prefixing them with a backslash,\n"
"which'll be subtracted in the expansion. multi-line commands may be\n"
"done by a leading backslash, which are NOT subtracted.\n\n"
"It has five options, this message (-h, --help); prevents the execution\n"
"of the shell command (-n, --dry-run); disable color (-c, --color); list\n"
"(-l, --list) and select (-s<n>, --select <n>) which respectively lists\n"
"all @BAKE commands and select & run the Nth command.\n\n"
"It roots the shell execution in the directory of the given file.\n\n"
"Licensed under the public domain.\n";
color_printf ("%s", help);
exit (1);
}

61
config.h
View File

@ -1,61 +0,0 @@
/* Require space after START */
#define REQUIRE_SPACE
/* colorize output */
#define ENABLE_COLOR 1
/* preferred, @FILENAME @SHORT @ARGS */
#define NEW_MACROS 1
/* $@ $* $+ */
#define OLD_MACROS 1
/* Disables the possibility of remove(1) ever being ran */
#define ENABLE_EXPUNGE_REMOVE 0
/* ./bake bake will compile bake.c, basically just proves that binary files
* really are supported, the bake.c file must exist next to the executable for
* this work correctly. Not meant as a serious feature, DO NOT enable this by
* default or in user builds.
*/
#define INCLUDE_AUTONOMOUS_COMPILE 0
#if ENABLE_COLOR == 1
# define RED "\033[91m"
# define GREEN "\033[92m"
# define YELLOW "\033[93m"
# define DIM "\033[2m"
# define BOLD "\033[1m"
# define RESET "\033[0m"
#elif ENABLE_COLOR
# define RED "\033[91;5m"
# define GREEN "\033[96;7m"
# define YELLOW "\033[94m"
# define DIM "\033[7m"
# define BOLD "\033[1;4m"
# define RESET "\033[0m"
#else
# define RED
# define GREEN
# define YELLOW
# define DIM
# define BOLD
# define RESET
#endif
/* It's best if you don't change these */
/* sed -i 's/@COMPILECMD/@BAKE/g' <<<YOUR FILES...>>> */
#define I_USE_LEGACY_CODE_AND_REFUSE_TO_UPGRADE 0
#if I_USE_LEGACY_CODE_AND_REFUSE_TO_UPGRADE
# define START "@COMPILECMD"
# warning | use sed -i 's/@COMPILECMD/@BAKE/g' <YOUR LEGACY FILES...> instead
#endif /* I_USE_LEGACY_CODE_AND_REFUSE_TO_UPGRADE */
#undef START
#define START "@BAKE"
#define STOP "@STOP"
#define EXPUNGE_START "@{"
#define EXPUNGE_STOP "}"

14
dist.sh
View File

@ -1,14 +0,0 @@
#!/bin/sh
# distribution tarball
cd "$(dirname "$(readlink -f "$0")")"
FILES='LICENSE README shake install.sh bake.c config.h bake.1'
VERSION="$(cat VERSION)"
TARGET="bake-$VERSION"
mkdir -p $TARGET
cp -f $FILES $TARGET
tar cf $TARGET.tar $TARGET
gzip -f $TARGET.tar
rm -rf $TARGET