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|
/* automatic.{cc,hh} -- code for automatic mode and interfacing with kpathsea
*
* Copyright (c) 2003-2006 Eddie Kohler
*
* 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; either version 2 of the License, or (at your option)
* any later version. 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.
*/
#include <config.h>
#include "automatic.hh"
#include "kpseinterface.h"
#include "util.hh"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <sys/stat.h>
#include <sys/types.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#include <lcdf/error.hh>
#include <lcdf/straccum.hh>
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#include <algorithm>
#ifdef WIN32
# define mkdir(dir, access) mkdir(dir)
#endif
#if HAVE_AUTO_T1DOTLESSJ
enum { T1DOTLESSJ_EXIT_J_NODOT = 2 };
#endif
static String::Initializer initializer;
static String odir[NUMODIR];
static String typeface;
static String vendor;
static String map_file;
#define DEFAULT_VENDOR "lcdftools"
#define DEFAULT_TYPEFACE "unknown"
static const struct {
const char *name;
const char *envvar;
const char *texdir;
} odir_info[] = {
{ "encoding", "ENCODINGDESTDIR", "#fonts/enc/dvips/@#dvips/@" },
{ "TFM", "TFMDESTDIR", "fonts/tfm/%" },
{ "PL", "PLDESTDIR", "fonts/pl/%" },
{ "VF", "VFDESTDIR", "fonts/vf/%" },
{ "VPL", "VPLDESTDIR", "fonts/vpl/%" },
{ "Type 1", "T1DESTDIR", "fonts/type1/%" },
{ "DVIPS map", "DVIPS directory", "#fonts/map/dvips/@#dvips/@" },
{ "DVIPS updmap", "DVIPS directory", "dvips" },
{ "TrueType", "TTFDESTDIR", "fonts/truetype/%" },
{ "OpenType", "OPENTYPEDESTDIR", "fonts/opentype/%" },
{ "Type 42", "T42DESTDIR", "fonts/type42/%" }
};
#if HAVE_KPATHSEA
static String odir_kpathsea[NUMODIR];
static bool writable_texdir_tried = false;
static String writable_texdir; // always ends with directory separator
static int tds_1_1 = -1;
static bool mktexupd_tried = false;
static String mktexupd;
static String
kpsei_string(char* x)
{
String s(x);
free((void*)x);
return s;
}
static void
look_for_writable_texdir(const char *path_variable, bool create)
{
String path = kpsei_string(kpsei_path_expand(path_variable));
while (path && !writable_texdir) {
const char* colon = std::find(path.begin(), path.end(), kpsei_env_sep_char);
String texdir = path.substring(path.begin(), colon);
path = path.substring(colon + 1, path.end());
if (access(texdir.c_str(), W_OK) >= 0)
writable_texdir = texdir;
else if (create && errno != EACCES && mkdir(texdir.c_str(), 0777) >= 0)
// create file if it doesn't exist already
writable_texdir = texdir;
}
if (writable_texdir && writable_texdir.back() != '/')
writable_texdir += "/";
}
static void
find_writable_texdir(ErrorHandler *errh, const char *)
{
look_for_writable_texdir("$TEXMFVAR", true);
if (!writable_texdir)
look_for_writable_texdir("$VARTEXMF", false);
if (!writable_texdir)
look_for_writable_texdir("$TEXMF", false);
if (!writable_texdir) {
errh->warning("no writable directory found in $TEXMFVAR or $TEXMF");
errh->message("(You probably need to set your TEXMF environment variable; see\n\
the manual for more information. The current TEXMF path is\n\
'%s'.)", kpsei_string(kpsei_path_expand("$TEXMF")).c_str());
}
writable_texdir_tried = true;
}
static String
get_vendor()
{
return (vendor ? vendor : String(DEFAULT_VENDOR));
}
static String
get_typeface()
{
return (typeface ? typeface : String(DEFAULT_TYPEFACE));
}
#endif
bool
set_vendor(const String &s)
{
bool had = (bool) vendor;
vendor = s;
return !had;
}
bool
set_typeface(const String &s, bool override)
{
bool had = (bool) typeface;
if (!had || override)
typeface = s;
return !had;
}
String
getodir(int o, ErrorHandler *errh)
{
assert(o >= 0 && o < NUMODIR);
if (!odir[o] && automatic && odir_info[o].envvar)
odir[o] = getenv(odir_info[o].envvar);
#ifdef HAVE_KPATHSEA
if (!odir[o] && automatic && !writable_texdir_tried)
find_writable_texdir(errh, odir_info[o].name);
if (!odir[o] && automatic && writable_texdir) {
String suffix = odir_info[o].texdir;
// May need to behave differently on TDS 1.1 rather than TDS 1.0.
if (suffix[0] == '#') {
// check type of TDS
if (tds_1_1 < 0) {
// using a procedure suggested by Olaf Weber
String encfonts = kpsei_string(kpsei_path_expand("$TEXMFMAIN/fonts/enc"));
if (!encfonts)
encfonts = kpsei_string(kpsei_path_expand("$TEXMFDIST/fonts/enc"));
tds_1_1 = (encfonts != String());
}
if (tds_1_1 == 0)
suffix = suffix.substring(std::find(suffix.begin() + 1, suffix.end(), '#') + 1, suffix.end());
else
suffix = suffix.substring(suffix.begin() + 1, std::find(suffix.begin() + 1, suffix.end(), '#'));
}
String dir = writable_texdir + suffix;
if (dir.back() == '%')
dir = dir.substring(0, -1) + get_vendor() + "/" + get_typeface();
else if (dir.back() == '@')
dir = dir.substring(0, -1) + get_vendor();
// create parent directories as appropriate
int slash = writable_texdir.length() - 1;
while (access(dir.c_str(), F_OK) < 0 && slash < dir.length()) {
if ((slash = dir.find_left('/', slash + 1)) < 0)
slash = dir.length();
String subdir = dir.substring(0, slash);
if (access(subdir.c_str(), F_OK) < 0
&& !no_create
&& mkdir(subdir.c_str(), 0777) < 0)
goto kpathsea_done;
}
// that's our answer
odir[o] = dir;
odir_kpathsea[o] = dir;
}
kpathsea_done:
#endif
if (!odir[o]) {
if (automatic)
errh->warning("%s not specified, placing %s files in '.'", odir_info[o].envvar, odir_info[o].name);
odir[o] = ".";
}
while (odir[o].length() && odir[o].back() == '/')
odir[o] = odir[o].substring(0, -1);
if (verbose)
errh->message("placing %s files in '%s'", odir_info[o].name, odir[o].c_str());
return odir[o];
}
bool
setodir(int o, const String &value)
{
assert(o >= 0 && o < NUMODIR);
bool had = (bool) odir[o];
odir[o] = value;
return !had;
}
const char *
odirname(int o)
{
assert(o >= 0 && o < NUMODIR);
return odir_info[o].name;
}
#if HAVE_KPATHSEA
static bool
file_in_kpathsea_odir(int o, const String &file)
{
return odir_kpathsea[o]
&& file.length() > odir[o].length()
&& memcmp(file.data(), odir[o].data(), odir[o].length()) == 0
&& file[odir[o].length()] == '/';
}
#endif
void
update_odir(int o, String file, ErrorHandler *errh)
{
assert(o >= 0 && o < NUMODIR);
#if HAVE_KPATHSEA
if (file.find_left('/') < 0)
file = odir[o] + "/" + file;
// exit if this directory was not found via kpathsea, or the file is not
// in the kpathsea directory
if (!file_in_kpathsea_odir(o, file))
return;
assert(writable_texdir && writable_texdir.length() <= odir[o].length()
&& memcmp(file.data(), writable_texdir.data(), writable_texdir.length()) == 0);
// divide the filename into portions
// file == writable_texdir + directory + file
file = file.substring(writable_texdir.length());
while (file && file[0] == '/')
file = file.substring(1);
int last_slash = file.find_right('/');
String directory = (last_slash >= 0 ? file.substring(0, last_slash) : String());
file = file.substring(last_slash >= 0 ? last_slash + 1 : 0);
if (!file) // no filename to update
return;
// return if nocreate
if (no_create) {
errh->message("would update %sls-R for %s/%s", writable_texdir.c_str(), directory.c_str(), file.c_str());
return;
} else if (verbose)
errh->message("updating %sls-R for %s/%s", writable_texdir.c_str(), directory.c_str(), file.c_str());
// try to update ls-R ourselves, rather than running mktexupd --
// mktexupd's runtime is painful: a half second to update a file
String ls_r = writable_texdir + "ls-R";
bool success = false;
if (access(ls_r.c_str(), R_OK) >= 0) // make sure it already exists
if (FILE *f = fopen(ls_r.c_str(), "a")) {
fprintf(f, "./%s:\n%s\n", directory.c_str(), file.c_str());
success = true;
fclose(f);
}
// otherwise, run mktexupd
if (!success && writable_texdir.find_left('\'') < 0 && directory.find_left('\'') < 0 && file.find_left('\'') < 0) {
// look for mktexupd script
if (!mktexupd_tried) {
mktexupd = kpsei_string(kpsei_find_file("mktexupd", KPSEI_FMT_WEB2C));
mktexupd_tried = true;
}
// run script
if (mktexupd) {
String command = mktexupd + " " + shell_quote(writable_texdir + directory) + " " + shell_quote(file);
int retval = system(command.c_str());
if (retval == 127)
errh->error("could not run '%s'", command.c_str());
else if (retval < 0)
errh->error("could not run '%s': %s", command.c_str(), strerror(errno));
else if (retval != 0)
errh->error("'%s' failed", command.c_str());
}
}
#else
(void) file, (void) errh;
#endif
}
bool
set_map_file(const String &s)
{
bool had = (bool) map_file;
map_file = s;
return !had;
}
String
installed_type1(const String &otf_filename, const String &ps_fontname, bool allow_generate, ErrorHandler *errh)
{
if (!ps_fontname)
return String();
#if HAVE_KPATHSEA
# if HAVE_AUTO_CFFTOT1
if (!(force && allow_generate && otf_filename && otf_filename != "-" && getodir(O_TYPE1, errh))) {
# endif
// look for .pfb and .pfa
String file, path;
if ((file = ps_fontname + ".pfb", path = kpsei_string(kpsei_find_file(file.c_str(), KPSEI_FMT_TYPE1)))
|| (file = ps_fontname + ".pfa", path = kpsei_string(kpsei_find_file(file.c_str(), KPSEI_FMT_TYPE1)))) {
if (verbose)
errh->message("Type 1 file %s found with kpathsea at %s", file.c_str(), path.c_str());
return path;
}
# if HAVE_AUTO_CFFTOT1
}
# endif
#endif
#if HAVE_AUTO_CFFTOT1
// if not found, and can generate on the fly, run cfftot1
if (allow_generate && otf_filename && otf_filename != "-" && getodir(O_TYPE1, errh)) {
String pfb_filename = odir[O_TYPE1] + "/" + ps_fontname + ".pfb";
if (pfb_filename.find_left('\'') >= 0 || otf_filename.find_left('\'') >= 0)
return String();
String command = "cfftot1 " + shell_quote(otf_filename) + " -n " + shell_quote(ps_fontname) + " " + shell_quote(pfb_filename);
int retval = mysystem(command.c_str(), errh);
if (retval == 127)
errh->error("could not run '%s'", command.c_str());
else if (retval < 0)
errh->error("could not run '%s': %s", command.c_str(), strerror(errno));
else if (retval != 0)
errh->error("'%s' failed", command.c_str());
if (retval == 0) {
update_odir(O_TYPE1, pfb_filename, errh);
return pfb_filename;
}
}
#endif
return String();
}
String
installed_type1_dotlessj(const String &otf_filename, const String &ps_fontname, bool allow_generate, ErrorHandler *errh)
{
if (!ps_fontname)
return String();
if (verbose)
errh->message("searching for dotless-j font for %s", ps_fontname.c_str());
String j_ps_fontname = ps_fontname + "LCDFJ";
#if HAVE_KPATHSEA
# if HAVE_AUTO_T1DOTLESSJ
if (!(force && allow_generate && getodir(O_TYPE1, errh))) {
# endif
// look for existing .pfb or .pfa
String file, path;
if ((file = j_ps_fontname + ".pfb", path = kpsei_string(kpsei_find_file(file.c_str(), KPSEI_FMT_TYPE1)))
|| (file = j_ps_fontname + ".pfa", path = kpsei_string(kpsei_find_file(file.c_str(), KPSEI_FMT_TYPE1)))) {
if (verbose)
errh->message("Type 1 file %s found with kpathsea at %s", file.c_str(), path.c_str());
return path;
}
# if HAVE_AUTO_T1DOTLESSJ
}
# endif
#endif
#if HAVE_AUTO_T1DOTLESSJ
// if not found, and can generate on the fly, try running t1dotlessj
if (allow_generate && getodir(O_TYPE1, errh)) {
if (String base_filename = installed_type1(otf_filename, ps_fontname, allow_generate, errh)) {
String pfb_filename = odir[O_TYPE1] + "/" + j_ps_fontname + ".pfb";
if (pfb_filename.find_left('\'') >= 0 || base_filename.find_left('\'') >= 0)
return String();
String command = "t1dotlessj " + shell_quote(base_filename) + " -n " + shell_quote(j_ps_fontname) + " " + shell_quote(pfb_filename);
int retval = mysystem(command.c_str(), errh);
if (retval == 127)
errh->warning("could not run '%s'", command.c_str());
else if (retval < 0)
errh->warning("could not run '%s': %s", command.c_str(), strerror(errno));
else if (WEXITSTATUS(retval) == T1DOTLESSJ_EXIT_J_NODOT)
return String("\0", 1);
else if (retval != 0)
errh->warning("'%s' failed (%d)", command.c_str(), retval);
if (retval == 0) {
update_odir(O_TYPE1, pfb_filename, errh);
return pfb_filename;
} else
errh->warning("output font will not contain a dotless-j character");
}
}
#endif
return String();
}
String
installed_truetype(const String &otf_filename, bool allow_generate, ErrorHandler *errh)
{
String file = pathname_filename(otf_filename);
#if HAVE_KPATHSEA
if (String path = kpsei_string(kpsei_find_file(file.c_str(), KPSEI_FMT_TRUETYPE))) {
if (verbose)
errh->message("TrueType file %s found with kpathsea at %s", file.c_str(), path.c_str());
return path;
}
#endif
#if HAVE_AUTO_CFFTOT1
// if not found, and can generate on the fly, run cfftot1
if (allow_generate && otf_filename && otf_filename != "-" && getodir(O_TRUETYPE, errh)) {
String ttf_filename = odir[O_TRUETYPE] + "/" + file;
if (ttf_filename.find_left('\'') >= 0 || ttf_filename.find_left('\'') >= 0)
return String();
String command = "cp " + shell_quote(otf_filename) + " " + shell_quote(ttf_filename);
int retval = mysystem(command.c_str(), errh);
if (retval == 127)
errh->error("could not run '%s'", command.c_str());
else if (retval < 0)
errh->error("could not run '%s': %s", command.c_str(), strerror(errno));
else if (retval != 0)
errh->error("'%s' failed", command.c_str());
if (retval == 0) {
update_odir(O_TRUETYPE, ttf_filename, errh);
return ttf_filename;
}
}
#endif
return String();
}
int
update_autofont_map(const String &fontname, String mapline, ErrorHandler *errh)
{
#if HAVE_KPATHSEA
if (automatic && !map_file && getodir(O_MAP, errh))
map_file = odir[O_MAP] + "/" + get_vendor() + ".map";
#endif
if (map_file == "" || map_file == "-")
fputs(mapline.c_str(), stdout);
else {
// report no_create/verbose
if (no_create) {
errh->message("would update %s for %s", map_file.c_str(), String(fontname).c_str());
return 0;
} else if (verbose)
errh->message("updating %s for %s", map_file.c_str(), String(fontname).c_str());
int fd = open(map_file.c_str(), O_RDWR | O_CREAT, 0666);
if (fd < 0)
return errh->error("%s: %s", map_file.c_str(), strerror(errno));
FILE *f = fdopen(fd, "r+");
// NB: also change encoding logic if you change this code
#if defined(F_SETLKW) && defined(HAVE_FTRUNCATE)
{
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
lock.l_start = 0;
lock.l_len = 0;
int result;
while ((result = fcntl(fd, F_SETLKW, &lock)) < 0 && errno == EINTR)
/* try again */;
if (result < 0) {
result = errno;
fclose(f);
return errh->error("locking %s: %s", map_file.c_str(), strerror(result));
}
}
#endif
// read old data from map file
StringAccum sa;
while (!feof(f))
if (char *x = sa.reserve(8192)) {
int amt = fread(x, 1, 8192, f);
sa.forward(amt);
} else {
fclose(f);
return errh->error("Out of memory!");
}
String text = sa.take_string();
// add comment if necessary
bool created = (!text);
if (created)
text = "% Automatically maintained by otftotfm or other programs. Do not edit.\n\n";
if (text.back() != '\n')
text += "\n";
// append old encodings
int fl = 0;
int nl = text.find_left('\n') + 1;
bool changed = created;
while (fl < text.length()) {
if (fl + fontname.length() + 1 < nl
&& memcmp(text.data() + fl, fontname.data(), fontname.length()) == 0
&& text[fl + fontname.length()] == ' ') {
// found the old name
if (text.substring(fl, nl - fl) == mapline) {
// duplicate of old name, don't change it
fclose(f);
if (verbose)
errh->message("%s unchanged", map_file.c_str());
return 0;
} else {
text = text.substring(0, fl) + text.substring(nl);
nl = fl;
changed = true;
}
}
fl = nl;
nl = text.find_left('\n', fl) + 1;
}
// special case: empty mapline, unchanged file
if (!mapline && !changed) {
fclose(f);
if (verbose)
errh->message("%s unchanged", map_file.c_str());
return 0;
}
// add our text
text += mapline;
// rewind file
#ifdef HAVE_FTRUNCATE
rewind(f);
ftruncate(fd, 0);
#else
fclose(f);
f = fopen(map_file.c_str(), "w");
#endif
// write data
fwrite(text.data(), 1, text.length(), f);
fclose(f);
// inform about the new file if necessary
if (created)
update_odir(O_MAP, map_file, errh);
#if HAVE_KPATHSEA && !WIN32
// run 'updmap' if present
String updmap_dir, updmap_file;
if (automatic && (output_flags & G_UPDMAP))
updmap_dir = getodir(O_MAP_PARENT, errh);
if (updmap_dir && (updmap_file = updmap_dir + "/updmap")
&& access(updmap_file.c_str(), X_OK) >= 0) {
// want to run 'updmap' from its directory, can't use system()
if (verbose)
errh->message("running %s", updmap_file.c_str());
pid_t child = fork();
if (child < 0)
errh->fatal("%s during fork", strerror(errno));
else if (child == 0) {
// change to updmap directory, run it
if (chdir(updmap_dir.c_str()) < 0)
errh->fatal("%s: %s during chdir", updmap_dir.c_str(), strerror(errno));
if (execl("./updmap", updmap_file.c_str(), (const char*) 0) < 0)
errh->fatal("%s: %s during exec", updmap_file.c_str(), strerror(errno));
exit(1); // should never get here
}
# if HAVE_WAITPID
// wait for updmap to finish
int status;
while (1) {
pid_t answer = waitpid(child, &status, 0);
if (answer >= 0)
break;
else if (errno != EINTR)
errh->fatal("%s during wait", strerror(errno));
}
if (!WIFEXITED(status))
errh->warning("%s exited abnormally", updmap_file.c_str());
else if (WEXITSTATUS(status) != 0)
errh->warning("%s exited with status %d", updmap_file.c_str(), WEXITSTATUS(status));
# else
# error "need waitpid() support: report this bug to the maintainer"
# endif
goto ran_updmap;
}
# if HAVE_AUTO_UPDMAP
// run system updmap
if (output_flags & G_UPDMAP) {
String filename = map_file;
int slash = filename.find_right('\'');
if (slash >= 0)
filename = filename.substring(slash + 1);
String command = "updmap --nomkmap --enable Map " + shell_quote(filename) + "; updmap";
if (verbose)
command += " 1>&2";
else
command += " >/dev/null 2>&1";
int retval = mysystem(command.c_str(), errh);
if (retval == 127)
errh->warning("could not run '%s'", command.c_str());
else if (retval < 0)
errh->warning("could not run '%s': %s", command.c_str(), strerror(errno));
else if (retval != 0)
errh->warning("'%s' exited with status %d;\nrun it manually to check for errors", command.c_str(), WEXITSTATUS(retval));
goto ran_updmap;
}
# endif
if (verbose)
errh->message("not running updmap");
ran_updmap: ;
#endif
}
return 0;
}
String
locate_encoding(String encfile, ErrorHandler *errh, bool literal)
{
if (!encfile || encfile == "-")
return encfile;
if (!literal) {
int slash = encfile.find_right('/');
int dot = encfile.find_left('.', slash >= 0 ? slash : 0);
if (dot < 0)
if (String file = locate_encoding(encfile + ".enc", errh, true))
return file;
}
#if HAVE_KPATHSEA
if (String file = kpsei_string(kpsei_find_file(encfile.c_str(), KPSEI_FMT_ENCODING))) {
if (verbose)
errh->message("encoding file %s found with kpathsea at %s", encfile.c_str(), file.c_str());
return file;
} else if (verbose)
errh->message("encoding file %s not found with kpathsea", encfile.c_str());
#endif
if (access(encfile.c_str(), R_OK) >= 0)
return encfile;
else
return String();
}
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