Change license, rewrite in C, remove info manual, remove shell tab completion, misc3.0

Signed-off-by: Mattias Andrée <maandree@kth.se>

16 files changed, 470 insertions, 1715 deletions

diff --git a/.gitignore b/.gitignore
index 931ee5c..bf8a15d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,28 +1,5 @@
-_/
-/bin/
-/obj/
-__pycache__/
-\#*\#
-.*
-!.git*
+*\#*
 *~
-*.sw[op]
-*.py[co]
+*.o
+*.su
 /bfind
-*.gz
-*.xz
-*.install
-*.aux
-*.cp
-*.fn
-*.info
-*.ky
-*.log
-*.pdf
-*.ps
-*.dvi
-*.pg
-*.toc
-*.tp
-*.vr
-
diff --git a/COPYING b/COPYING
deleted file mode 100644
index b7ab5fc..0000000
--- a/COPYING
+++ /dev/null
@@ -1,16 +0,0 @@
-bfind – Minimalitic `find` using breadth first crawling
-
-Copyright © 2013, 2015  Mattias Andrée (maandree@member.fsf.org)
-
-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 3 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.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/LICENSE b/LICENSE
index 94a9ed0..a0fc365 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,674 +1,15 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
+ISC License
 
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
+© 2013, 2015, 2021 Mattias Andrée <maandree@kth.se>
 
-                            Preamble
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
 
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-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU Affero General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    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 3 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.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-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
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/Makefile b/Makefile
index 44bbf74..0fc98f5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,177 +1,28 @@
-PREFIX = /usr
-BIN = /bin
-DATA = /share
-BINDIR = $(PREFIX)/bin
-DATADIR = $(PREFIX)/share
-INFODIR = $(DATADIR)/info
-DOCDIR = $(DATADIR)/doc
-MANDIR = $(DATADIR)/man
-MAN1DIR = $(MANDIR)/man1
-LICENSEDIR = $(DATADIR)/licenses
+.POSIX:
 
-COMMAND = bfind
-PKGNAME = bfind
+CONFIGFILE = config.mk
+include $(CONFIGFILE)
 
-PY3_SHEBANG = /usr/bin/env python3
 
+all: bfind
 
+bfind.o: bfind.c arg.h
+	$(CC) -c -o $@ bfind.c $(CPPFLAGS) $(CFLAGS)
 
-.PHONY: default
-default: cmd info shell
+bfind: bfind.o
+	$(CC) -o $@ bfind.o $(LDFLAGS)
 
-.PHONY: all
-all: cmd doc shell
+install: bfind
+	mkdir -p -- "$(DESTDIR)$(PREFIX)/bin"
+	mkdir -p -- "$(DESTDIR)$(MANPREFIX)/man1"
+	cp -- bfind "$(DESTDIR)$(PREFIX)/bin/"
+	cp -- bfind.1 "$(DESTDIR)$(MANPREFIX)/man1/"
 
-.PHONY: cmd
-cmd: bin/bfind
-
-bin/bfind: src/bfind.py
-	@mkdir -p bin
-	cp $< $@
-	sed -i 's:/usr/bin/env/ python3:$(PY3_SHEBANG):' "$@"
-
-.PHONY: doc
-doc: info pdf dvi ps
-
-.PHONY: info
-info: bin/bfind.info
-bin/%.info: doc/info/%.texinfo
-	@mkdir -p bin
-	$(MAKEINFO) $<
-	mv $*.info $@
-
-.PHONY: pdf
-pdf: bin/bfind.pdf
-bin/%.pdf: doc/info/%.texinfo
-	@! test -d obj/pdf || rm -rf obj/pdf
-	@mkdir -p bin obj/pdf
-	cd obj/pdf && texi2pdf ../../"$<" < /dev/null
-	mv obj/pdf/$*.pdf $@
-
-.PHONY: dvi
-dvi: bin/bfind.dvi
-bin/%.dvi: doc/info/%.texinfo
-	@! test -d obj/dvi || rm -rf obj/dvi
-	@mkdir -p bin obj/dvi
-	cd obj/dvi && $(TEXI2DVI) ../../"$<" < /dev/null
-	mv obj/dvi/$*.dvi $@
-
-.PHONY: ps
-ps: bin/bfind.ps
-bin/%.ps: doc/info/%.texinfo
-	@! test -d obj/ps || rm -rf obj/ps
-	@mkdir -p bin obj/ps
-	cd obj/ps && texi2pdf --ps ../../"$<" < /dev/null
-	mv obj/ps/$*.ps $@
-
-.PHONY: shell
-shell: bash fish zsh
-
-.PHONY: bash
-bash: bin/bfind.bash-completion
-
-.PHONY: fish
-fish: bin/bfind.fish-completion
-
-.PHONY: zsh
-zsh: bin/bfind.zsh-completion
-
-obj/bfind.auto-completion: src/bfind.auto-completion
-	@mkdir -p obj
-	cp $< $@
-	sed -i 's/^(bfind$$/($(COMMAND)/' $@
-
-bin/bfind.%sh-completion: obj/bfind.auto-completion
-	@mkdir -p bin
-	auto-auto-complete $*sh --output $@ --source $<
-
-
-
-.PHONY: install
-install: install-core install-info install-man install-shell
-
-.PHONY: install-all
-install-all: install-core install-doc install-shell
-
-.PHONY: install-core
-install-core: install-cmd install-license
-
-.PHONY: install-cmd
-install-cmd: bin/bfind
-	install -dm755 -- "$(DESTDIR)$(BINDIR)"
-	install -m755 --  $< "$(DESTDIR)$(BINDIR)/$(COMMAND)"
-
-.PHONY: install-license
-install-license:
-	install -dm755 -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
-	install -m644 -- COPYING LICENSE "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
-
-.PHONY: install-doc
-install-doc: install-info install-pdf install-dvi install-ps install-man
-
-.PHONY: install-info
-install-info: bin/bfind.info
-	install -dm755 -- "$(DESTDIR)$(INFODIR)"
-	install -m644 $< -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
-
-.PHONY: install-pdf
-install-pdf: bin/bfind.pdf
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 $< -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"
-
-.PHONY: install-dvi
-install-dvi: bin/bfind.dvi
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 $< -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"
-
-.PHONY: install-ps
-install-ps: bin/bfind.ps
-	install -dm755 -- "$(DESTDIR)$(DOCDIR)"
-	install -m644 $< -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"
-
-.PHONY: install-man
-install-man: doc/man/bfind.1
-	install -dm755 -- "$(DESTDIR)$(MAN1DIR)"
-	install -m644 $< -- "$(DESTDIR)$(MAN1DIR)/$(COMMAND).1"
-
-.PHONY: install-shell
-install-shell: install-bash install-fish install-zsh
-
-.PHONY: install-bash
-install-bash: bin/bfind.bash-completion
-	install -dm755 -- "$(DESTDIR)$(DATADIR)/bash-completion/completions"
-	install -m644 $< -- "$(DESTDIR)$(DATADIR)/bash-completion/completions/$(COMMAND)"
-
-.PHONY: install-fish
-install-fish: bin/bfind.fish-completion
-	install -dm755 -- "$(DESTDIR)$(DATADIR)/fish/completions"
-	install -m644 $< -- "$(DESTDIR)$(DATADIR)/fish/completions/$(COMMAND).fish"
-
-.PHONY: install-zsh
-install-zsh: bin/bfind.zsh-completion
-	install -dm755 -- "$(DESTDIR)$(DATADIR)/zsh/site-functions"
-	install -m644 $< -- "$(DESTDIR)$(DATADIR)/zsh/site-functions/_$(COMMAND)"
-
-
-
-.PHONY: uninstall
 uninstall:
-	-rm -- "$(DESTDIR)$(BINDIR)/$(COMMAND)"
-	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/COPYING"
-	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/LICENSE"
-	-rmdir -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
-	-rm -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"
-	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"
-	-rm -- "$(DESTDIR)$(DATADIR)/bash-completion/completions/$(COMMAND)"
-	-rm -- "$(DESTDIR)$(DATADIR)/fish/completions/$(COMMAND).fish"
-	-rm -- "$(DESTDIR)$(DATADIR)/zsh/site-functions/_$(COMMAND)"
-	-rm -- "$(DESTDIR)$(MAN1DIR)/$(COMMAND).1"
-
-
+	-rm -f -- "$(DESTDIR)$(PREFIX)/bin/bfind"
+	-rm -f -- "$(DESTDIR)$(MANPREFIX)/man1/bfind.1"
 
-.PHONY: clean
 clean:
-	-rm -r obj bin
+	-rm -rf -- bfind *.o
 
+.PHONY: all install uninstall clean
diff --git a/README b/README
index 186c069..759089a 100644
--- a/README
+++ b/README
@@ -1,11 +1,11 @@
 NAME
-	bfind - Minimalitic find using breadth-first crawling
+	bfind - minimalistic find using breadth-first crawling
 
 SYNOPSIS
-	bfind [OPTION]... [--] [DIRECTORY]
+	bfind [-0hsvx] [directory]
 
 DESCRIPTION
-	bfind is a minimalitic alternative to find(1) that is
+	bfind is a minimalistic alternative to find(1) that is
 	designed to be efficient that locating files. To
 	accomplish this, bfind uses breadth-first crawling
 	instead of depth-first crawling.
@@ -18,21 +18,21 @@ DESCRIPTION
 	since to have in the program and can be outright dangerous.
 
 OPTIONS
-	-x, --xdev
-		Do not restrict crawling to one mount point.
+	-0
+		Terminate lines with NUL rather than LF.
 
-	-h, --hardlinks
+	-h
 		Watch out for hardlinked directories.
 
-	-s, --symlinks
+	-s
 		Visit symbolically linked directories, but
 		never visit the same directory twice.
 
-	-v, --visible
+	-v
 		No files starting with a dot will be listed.
 
-	-0, --print0
-		Terminate lines with NUL rather than LF.
+	-x
+		Do not restrict crawling to one mount point.
 
 RATIONALE
 	While bfind is not as fast as find(1) for large
@@ -43,6 +43,3 @@ RATIONALE
 
 SEE ALSO
 	find(1), grep(1)
-
-	Full documentation available locally via: info '(bfind)'
-
diff --git a/arg.h b/arg.h
new file mode 100644
index 0000000..4f7b6c0
--- /dev/null
+++ b/arg.h
@@ -0,0 +1,45 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
+					argv[0] && argv[0][0] && argv[0][1];\
+					argc--, argv++) {\
+				char argc_;\
+				char **argv_;\
+				int brk_;\
+				if (argv[0][0] == '-') {\
+					if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+						argv++;\
+						argc--;\
+						break;\
+					}\
+					for (brk_ = 0, argv[0]++, argv_ = argv;\
+							argv[0][0] && !brk_;\
+							argv[0]++) {\
+						if (argv_ != argv)\
+							break;\
+						argc_ = argv[0][0];\
+						switch (argc_)
+
+#define ARGEND				}\
+				} else {\
+					break;\
+				}\
+			}
+
+#define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
+				((x), abort(), (char *)0) :\
+				(brk_ = 1, (argv[0][1] != '\0')?\
+					(&argv[0][1]) :\
+					(argc--, argv++, argv[0])))
+
+
+#endif
diff --git a/doc/man/bfind.1 b/bfind.1
index d0a9b37..3aa03f8 100644
--- a/doc/man/bfind.1
+++ b/bfind.1
@@ -1,15 +1,15 @@
-.TH BFIND 1 BFIND
+.TH BFIND 1 bfind
 .SH NAME
-bfind - Minimalitic find using breadth-first crawling
+bfind - minimalitic find using breadth-first crawling
+
 .SH SYNOPSIS
 .BR bfind
-.RI [ OPTION ]...
-[--]
-.RI [ DIRECTORY ]
-.IR PASSPHRASE_LIST
+[-0hsvx]
+.RI [ directory ]
+
 .SH DESCRIPTION
 .BR bfind
-is a minimalitic alternative to
+is a minimalistic alternative to
 .BR find (1)
 that is designed to be efficient that locating files.
 To accomplish this,
@@ -27,23 +27,78 @@ will never include all features of
 because they are excessive and some other than makes
 not since to have in the program and can be outright
 dangerous.
+
 .SH OPTIONS
+The
+.B bfind
+utility conforms to the Base Definitions volume of POSIX.1-2017,
+.IR "Section 12.2" ,
+.IR "Utility Syntax Guidelines" .
+.PP
+The following options are supported:
 .TP
-.BR \-x ,\  \-\-xdev
-Do not restrict crawling to one mount point.
+.BR \-0
+Terminate lines with NUL rather than LF.
 .TP
-.BR \-h ,\  \-\-hardlinks
+.BR \-h
 Watch out for hardlinked directories.
 .TP
-.BR \-s ,\  \-\-symlinks
+.BR \-s
 Visit symbolically linked directories, but
 never visit the same directory twice.
 .TP
-.BR \-v ,\  \-\-visible
+.BR \-v
 No files starting with a dot will be listed.
 .TP
-.BR \-0 ,\  \-\-print0
-Terminate lines with NUL rather than LF.
+.BR \-x
+Do not restrict crawling to one mount point.
+
+.SH OPERANDS
+The following operand is supported:
+.TP
+.I directory
+The directory to crawl. If not specified, the current
+working directory is crawled.
+
+.SH STDIN
+Not used.
+
+.SH INPUT FILES
+.I directory
+may be of any type.
+
+.SH ENVIRONMENT VARIABLES
+No environment variables affects the execution of
+.BR bfind .
+
+.SH ASYNCHRONOUS EVENTS
+Default.
+
+.SH STDOUT
+The
+.B bfind
+utility prints all visited files to the standard output.
+
+.SH STDERR
+The standard error is only used for diagnostic messages.
+
+.SH OUTPUT FILES
+None.
+
+.SH EXTENDED DESCRIPTION
+None.
+
+.SH EXIT STATUS
+The
+.B bfind
+utility exits with one of the following statuses:
+.TP
+0
+Successful.
+.TP
+1
+On error, including missing permissions to crawl a directory.
+
 .SH RATIONALE
 While
 .BR bfind
@@ -54,22 +109,7 @@ results faster if you are looking for a file (rather
 than listing files), because the file you are looking
 for is probably near the directory you are searching
 from.
-.SH "SEE ALSO"
+
+.SH SEE ALSO
 .BR find (1),
 .BR grep (1)
-.PP
-Full documentation available locally via: info \(aq(bfind)\(aq
-.SH AUTHORS
-Principal author, Mattias Andrée.  See the COPYING file for the full
-list of authors.
-.SH LICENSE
-Copyright \(co 2013, 2015  Mattias Andrée
-.br
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
-.br
-This is free software: you are free to change and redistribute it.
-.br
-There is NO WARRANTY, to the extent permitted by law.
-.SH BUGS
-Please report bugs to https://github.com/maandree/bfind/issues or to
-maandree@member.fsf.org
diff --git a/bfind.c b/bfind.c
new file mode 100644
index 0000000..323ee73
--- /dev/null
+++ b/bfind.c
@@ -0,0 +1,306 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "arg.h"
+
+#define N 500
+
+
+typedef struct queue {
+	char *nodes[N];
+	size_t head;
+	size_t tail;
+	struct queue *next;
+	struct queue *prev;
+} Queue;
+
+typedef union inode {
+	union inode *node[256];
+	uint64_t leaf[256 / 64];
+} INode;
+
+typedef struct device {
+	dev_t dev;
+	INode visited;
+} Device;
+
+
+char *argv0;
+
+static Queue queue_head;
+static Queue queue_tail;
+static Queue queue_pool;
+static Device *devices = NULL;
+static size_t ndevices = 0;
+
+static int status = 0;
+static int xdev = 0;
+static int hardlinks = 0;
+static int symlinks = 0;
+static int visible = 0;
+
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: %s [-0hsvx] [directory]\n", argv0);
+	exit(1);
+}
+
+
+static void
+enqueue(const char *dir, size_t dir_len, const char *file)
+{
+	Queue *node;
+	size_t file_len;
+
+	node = queue_tail.prev;
+	if (!node->prev || node->tail == N) {
+		if (queue_pool.next) {
+			node = queue_pool.next;
+			queue_pool.next = node->next;
+		} else {
+			node = calloc(1, sizeof(*node));
+			if (!node) {
+				perror(argv0);
+				exit(1);
+			}
+		}
+		node->prev = queue_tail.prev;
+		queue_tail.prev->next = node;
+		queue_tail.prev = node;
+		node->next = &queue_tail;
+	}
+
+	file_len = strlen(file);
+	node->nodes[node->tail] = malloc(dir_len + file_len + 2);
+	if (!node->nodes[node->tail]) {
+		perror(argv0);
+		exit(1);
+	}
+	if (dir) {
+		memcpy(&node->nodes[node->tail][0], dir, dir_len);
+		node->nodes[node->tail][dir_len++] = '/';
+	}
+	memcpy(&node->nodes[node->tail][dir_len], file, file_len + 1);
+	node->tail += 1;
+}
+
+
+static char *
+dequeue(void)
+{
+	Queue *node;
+	char *ret;
+
+again:
+	node = queue_head.next;
+	if (!node->next)
+		return NULL;
+
+	if (node->head == node->tail) {
+		node->head = node->tail = 0;
+		node->prev->next = node->next;
+		node->next->prev = node->prev;
+		node->prev = NULL;
+		node->next = queue_pool.next;
+		queue_pool.next = node;
+		goto again;
+	}
+
+	ret = node->nodes[node->head++];
+	if (node->head == node->tail) {
+		node->head = node->tail = 0;
+		node->prev->next = node->next;
+		node->next->prev = node->prev;
+		node->prev = NULL;
+		node->next = queue_pool.next;
+		queue_pool.next = node;
+	}
+
+	return ret;
+}
+
+
+static void
+enqueue_dir(const char *path)
+{
+	DIR *dir;
+	struct dirent *f;
+	size_t path_len = path ? strlen(path) : 0;
+	struct stat st;
+
+	if (path && !symlinks) {
+		if (lstat(path ? path : ".", &st)) {
+			if (errno == ENOENT)
+				return;
+			fprintf(stderr, "%s: lstat %s: %s\n", argv0, path ? path : ".", strerror(errno));
+			status = 1;
+			return;
+		}
+		if (S_ISLNK(st.st_mode))
+			return;
+	}
+
+	dir = opendir(path ? path : ".");
+	if (!dir) {
+		if (errno == ENOTDIR || errno == ENOENT || errno == ELOOP)
+			return;
+		fprintf(stderr, "%s: opendir %s: %s\n", argv0, path ? path : ".", strerror(errno));
+		status = 1;
+		return;
+	}
+
+	errno = 0;
+	while ((f = readdir(dir))) {
+		if (f->d_name[0] == '.')
+			if (visible || !f->d_name[1 + (f->d_name[1] == '.')])
+				continue;
+		enqueue(path, path_len, f->d_name);
+	}
+
+	if (errno) {
+		fprintf(stderr, "%s: readdir %s: %s\n", argv0, path ? path : ".", strerror(errno));
+		status = 1;
+	}
+
+	closedir(dir);
+}
+
+
+static int
+visit_inode(Device *dev, ino_t inode)
+{
+	size_t levels = sizeof(inode);
+	INode *tree = &dev->visited;
+
+	while (levels) {
+		if (!tree->node[inode & 255])
+			goto not_found;
+		tree = tree->node[inode & 255];
+		inode >>= 8;
+		levels--;
+	}
+
+	if (tree->leaf[inode / 64] & ((uint64_t)1 << (inode & 63)))
+		return 1;
+
+	goto not_visited;
+
+not_found:
+	while (levels > 1) {
+		tree = tree->node[inode & 255] = calloc(1, levels > 1 ? sizeof(tree->node) : sizeof(tree->leaf));
+		if (!tree) {
+			fprintf(stderr, "%s: calloc: %s\n", argv0, strerror(errno));
+			exit(1);
+		}
+		inode >>= 8;
+		levels--;
+	}
+
+not_visited:
+	tree->leaf[inode / 64] |= (uint64_t)1 << (inode & 63);
+	return 0;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+	char ending = '\n', *path;
+	struct stat st;
+	dev_t start_dev;
+	size_t i;
+
+	ARGBEGIN {
+	case '0':
+		ending = '\0';
+		break;
+	case 'h':
+		hardlinks = 1;
+		break;
+	case 's':
+		hardlinks = 1;
+		symlinks = 1;
+		break;
+	case 'v':
+		visible = 1;
+		break;
+	case 'x':
+		xdev = 1;
+		break;
+	default:
+		usage();
+	} ARGEND;
+
+	if (argc > 1)
+		usage();
+
+	queue_head.next = &queue_tail;
+	queue_tail.prev = &queue_head;
+
+	if (!xdev) {
+		if (stat((argc && **argv) ? *argv : ".", &st)) {
+			fprintf(stderr, "%s: stat %s: %s\n", argv0, (argc && **argv) ? *argv : ".", strerror(errno));
+			return 1;
+		}
+		start_dev = st.st_dev;
+	}
+
+	if (argc && **argv)
+		enqueue(NULL, 0, *argv);
+	else
+		enqueue_dir(NULL);
+
+	while ((path = dequeue())) {
+		printf("%s%c", path, ending);
+		if (stat(path, &st)) {
+			if (errno != ENOENT && errno != ELOOP) {
+				fprintf(stderr, "%s: stat %s: %s\n", argv0, path, strerror(errno));
+				status = 1;
+			}
+			continue;
+		}
+		if (S_ISDIR(st.st_mode)) {
+			if (!xdev && st.st_dev != start_dev)
+				continue;
+			if (hardlinks) {
+				for (i = 0; i < ndevices; i++)
+					if (devices[i].dev == st.st_dev)
+						break;
+				if (i == ndevices) {
+					devices = realloc(devices, (ndevices + 1) * sizeof(*devices));
+					if (!devices) {
+						fprintf(stderr, "%s: realloc: %s\n", argv0, strerror(errno));
+						status = 1;
+					}
+					memset(&devices[ndevices], 0, sizeof(*devices));
+					devices[ndevices++].dev = st.st_dev;
+				}
+				if (visit_inode(&devices[i], st.st_ino))
+					continue;
+			}
+			enqueue_dir(path);
+		}
+		free(path);
+	}
+
+	if (fflush(stdout) || ferror(stdout) || fclose(stdout)) {
+		fprintf(stderr, "%s: printf: %s\n", argv0, strerror(errno));
+		return 1;
+	}
+	while (queue_pool.next) {
+		queue_pool.prev = queue_pool.next;
+		queue_pool.next = queue_pool.next->next;
+		free(queue_pool.prev);
+	}
+	return status;
+}
diff --git a/config.mk b/config.mk
new file mode 100644
index 0000000..7c93a9a
--- /dev/null
+++ b/config.mk
@@ -0,0 +1,6 @@
+PREFIX    = /usr
+MANPREFIX = $(PREFIX)/share/man
+
+CPPFLAGS  = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
+CFLAGS    = -std=c99 -Wall
+LDFLAGS   = 
diff --git a/dist/archlinux/stable/.gitignore b/dist/archlinux/stable/.gitignore
deleted file mode 100644
index 8b2689a..0000000
--- a/dist/archlinux/stable/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-*
-!.git*
-!PKGBUILD
-!bfind.install
-
diff --git a/dist/archlinux/stable/PKGBUILD b/dist/archlinux/stable/PKGBUILD
deleted file mode 100644
index bd2ab96..0000000
--- a/dist/archlinux/stable/PKGBUILD
+++ /dev/null
@@ -1,30 +0,0 @@
-# Maintainer: Mattias Andrée <`base64 -d`(bWFhbmRyZWUK)@member.fsf.org>
-
-pkgname=bfind
-pkgver=2.1.1
-pkgrel=1
-pkgdesc="find alternative optimised for finding files rather then listing files"
-url="https://github.com/maandree/bfind"
-arch=(any)
-license=(GPL3)
-depends=(python3)
-makedepends=(make coreutils sed texinfo gzip auto-auto-complete)
-install=bfind.install
-source=("${url}/archive/${pkgver}.tar.gz")
-sha256sums=(2adf446212950b45c800380273f8f04fc3b2365b3e68ca53ac961966844f4c5e)
-
-_prefix=/usr
-
-
-build() {
-	cd "${srcdir}/bfind-${pkgver}"
-	make PREFIX="${_prefix}" PKGNAME="${pkgname}" DESTDIR="${pkgdir}"
-}
-
-package() {
-	cd "${srcdir}/bfind-${pkgver}"
-	make PREFIX="${_prefix}" PKGNAME="${pkgname}" DESTDIR="${pkgdir}" install
-	_dir="${pkgdir}${_prefix}/share/licenses/${pkgname}"
-	ln -sf -- "/usr/share/licenses/common/GPL3" "${_dir}/LICENSE"
-}
-
diff --git a/dist/archlinux/stable/bfind.install b/dist/archlinux/stable/bfind.install
deleted file mode 100644
index 4f81d3e..0000000
--- a/dist/archlinux/stable/bfind.install
+++ /dev/null
@@ -1,20 +0,0 @@
-_file="bfind"
-
-infodir="usr/share/info"
-file="${_file}.info.gz"
-
-
-post_install() {
-  [[ -x "usr/bin/install-info" ]] || return 0
-  install-info -- "${infodir}/${file}" "${infodir}/dir" 2> /dev/null
-}
-
-post_upgrade() {
-  post_install "$1"
-}
-
-pre_remove() {
-  [[ -x "usr/bin/install-info" ]] || return 0
-  install-info --delete -- "${infodir}/${file}" "${infodir}/dir" 2> /dev/null
-}
-
diff --git a/doc/info/bfind.texinfo b/doc/info/bfind.texinfo
deleted file mode 100644
index 203c6ff..0000000
--- a/doc/info/bfind.texinfo
+++ /dev/null
@@ -1,128 +0,0 @@
-\input texinfo   @c -*-texinfo-*-
-
-@c %**start of header
-@setfilename bfind.info
-@settitle bfind
-@afourpaper
-@documentencoding UTF-8
-@documentlanguage en
-@finalout
-@c %**end of header
-
-@c --- start of do not touch ---
-@set COMMAND bfind
-@c --- end of do not touch ---
-
-
-@dircategory General Commands
-@direntry
-* bfind: (bfind).          Locate files using breadth-first search.
-@end direntry
-
-
-@copying
-Copyright @copyright{} 2013 Mattias Andrée
-
-@quotation
-Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.3 or
-any later version published by the Free Software Foundation; with no
-Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
-Texts. A copy of the license is included in the section entitled
-``GNU Free Documentation License''.
-@end quotation
-@end copying
-
-@ifnottex
-@node Top
-@top bfind -- Locate files using breadth-first search
-@insertcopying
-@end ifnottex
-
-@titlepage
-@title bfind
-@subtitle Locate files using breadth-first search
-@author by Mattias Andrée (maandree)
-
-@page
-@vskip 0pt plus 1filll
-@insertcopying
-@end titlepage
-
-@contents
-
-
-
-@menu
-* Overview::                        Brief overview of @command{@value{COMMAND}}.
-* Invoking::                        Running @command{@value{COMMAND}}.
-* GNU Free Documentation License::  Copying and sharing this manual.
-@end menu
-
-
-
-@node Overview
-@chapter Overview
-
-@command{@value{COMMAND}} is a tool similar to @command{find},
-except not as feature rich@footnote{You are encouraged to combine
-with the shell to implement the features missing from @command{find}
-in @command{bfind}, even when using @command{find}}, and using
-breadth-first crawling instead of depth-first crawling making
-@command{@value{COMMAND}} optimised for search files rather the
-listing files as @command{find} as optimised for.
-
-
-
-@node Invoking
-@chapter Invoking
-
-@command{@value{COMMAND}} supports a small of options and
-only crawling of one directory per invocation.
-
-@table @option
-@item -x
-@itemx --xdev
-Do not restricted to crawling to one mount point.
-
-@item -h
-@itemx --hardlinks
-You should use this if your filesystem supports
-hardlinked directories. (It probably does not.)
-
-@item -s
-@itemx --symlinks
-Visit directories symlinks points. Directories
-will never be revisited. Visited directories
-Will be memorised by absolute real path name.
-
-@item -v
-@itemx --visible
-Do not list files starting with a dot. This
-a generally a good idea as the file your are
-searching for is probably not in a hidden
-directory and is probably not a hidden file.
-
-@item -0
-@itemx --print0
-Use NUL (\0) character for file separation rather
-than LF (\n).
-
-@item --
-Stop parsing arguments as options.
-@end table
-
-If no directory is specified the current directory will
-be crawled, but the directory will not be printed in the
-beginning of each line nor will it appear as the first
-found file. Each line will always start with specified
-as directory exactly as writen in the argument
-
-
-
-@node GNU Free Documentation License
-@appendix GNU Free Documentation License
-@include fdl.texinfo
-
-@bye
-
diff --git a/doc/info/fdl.texinfo b/doc/info/fdl.texinfo
deleted file mode 100644
index cb71f05..0000000
--- a/doc/info/fdl.texinfo
+++ /dev/null
@@ -1,505 +0,0 @@
-@c The GNU Free Documentation License.
-@center Version 1.3, 3 November 2008
-
-@c This file is intended to be included within another document,
-@c hence no sectioning command or @node.
-
-@display
-Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
-@uref{http://fsf.org/}
-
-Everyone is permitted to copy and distribute verbatim copies
-of this license document, but changing it is not allowed.
-@end display
-
-@enumerate 0
-@item
-PREAMBLE
-
-The purpose of this License is to make a manual, textbook, or other
-functional and useful document @dfn{free} in the sense of freedom: to
-assure everyone the effective freedom to copy and redistribute it,
-with or without modifying it, either commercially or noncommercially.
-Secondarily, this License preserves for the author and publisher a way
-to get credit for their work, while not being considered responsible
-for modifications made by others.
-
-This License is a kind of ``copyleft'', which means that derivative
-works of the document must themselves be free in the same sense.  It
-complements the GNU General Public License, which is a copyleft
-license designed for free software.
-
-We have designed this License in order to use it for manuals for free
-software, because free software needs free documentation: a free
-program should come with manuals providing the same freedoms that the
-software does.  But this License is not limited to software manuals;
-it can be used for any textual work, regardless of subject matter or
-whether it is published as a printed book.  We recommend this License
-principally for works whose purpose is instruction or reference.
-
-@item
-APPLICABILITY AND DEFINITIONS
-
-This License applies to any manual or other work, in any medium, that
-contains a notice placed by the copyright holder saying it can be
-distributed under the terms of this License.  Such a notice grants a
-world-wide, royalty-free license, unlimited in duration, to use that
-work under the conditions stated herein.  The ``Document'', below,
-refers to any such manual or work.  Any member of the public is a
-licensee, and is addressed as ``you''.  You accept the license if you
-copy, modify or distribute the work in a way requiring permission
-under copyright law.
-
-A ``Modified Version'' of the Document means any work containing the
-Document or a portion of it, either copied verbatim, or with
-modifications and/or translated into another language.
-
-A ``Secondary Section'' is a named appendix or a front-matter section
-of the Document that deals exclusively with the relationship of the
-publishers or authors of the Document to the Document's overall
-subject (or to related matters) and contains nothing that could fall
-directly within that overall subject.  (Thus, if the Document is in
-part a textbook of mathematics, a Secondary Section may not explain
-any mathematics.)  The relationship could be a matter of historical
-connection with the subject or with related matters, or of legal,
-commercial, philosophical, ethical or political position regarding
-them.
-
-The ``Invariant Sections'' are certain Secondary Sections whose titles
-are designated, as being those of Invariant Sections, in the notice
-that says that the Document is released under this License.  If a
-section does not fit the above definition of Secondary then it is not
-allowed to be designated as Invariant.  The Document may contain zero
-Invariant Sections.  If the Document does not identify any Invariant
-Sections then there are none.
-
-The ``Cover Texts'' are certain short passages of text that are listed,
-as Front-Cover Texts or Back-Cover Texts, in the notice that says that
-the Document is released under this License.  A Front-Cover Text may
-be at most 5 words, and a Back-Cover Text may be at most 25 words.
-
-A ``Transparent'' copy of the Document means a machine-readable copy,
-represented in a format whose specification is available to the
-general public, that is suitable for revising the document
-straightforwardly with generic text editors or (for images composed of
-pixels) generic paint programs or (for drawings) some widely available
-drawing editor, and that is suitable for input to text formatters or
-for automatic translation to a variety of formats suitable for input
-to text formatters.  A copy made in an otherwise Transparent file
-format whose markup, or absence of markup, has been arranged to thwart
-or discourage subsequent modification by readers is not Transparent.
-An image format is not Transparent if used for any substantial amount
-of text.  A copy that is not ``Transparent'' is called ``Opaque''.
-
-Examples of suitable formats for Transparent copies include plain
-ASCII without markup, Texinfo input format, La@TeX{} input
-format, SGML or XML using a publicly available
-DTD, and standard-conforming simple HTML,
-PostScript or PDF designed for human modification.  Examples
-of transparent image formats include PNG, XCF and
-JPG.  Opaque formats include proprietary formats that can be
-read and edited only by proprietary word processors, SGML or
-XML for which the DTD and/or processing tools are
-not generally available, and the machine-generated HTML,
-PostScript or PDF produced by some word processors for
-output purposes only.
-
-The ``Title Page'' means, for a printed book, the title page itself,
-plus such following pages as are needed to hold, legibly, the material
-this License requires to appear in the title page.  For works in
-formats which do not have any title page as such, ``Title Page'' means
-the text near the most prominent appearance of the work's title,
-preceding the beginning of the body of the text.
-
-The ``publisher'' means any person or entity that distributes copies
-of the Document to the public.
-
-A section ``Entitled XYZ'' means a named subunit of the Document whose
-title either is precisely XYZ or contains XYZ in parentheses following
-text that translates XYZ in another language.  (Here XYZ stands for a
-specific section name mentioned below, such as ``Acknowledgements'',
-``Dedications'', ``Endorsements'', or ``History''.)  To ``Preserve the Title''
-of such a section when you modify the Document means that it remains a
-section ``Entitled XYZ'' according to this definition.
-
-The Document may include Warranty Disclaimers next to the notice which
-states that this License applies to the Document.  These Warranty
-Disclaimers are considered to be included by reference in this
-License, but only as regards disclaiming warranties: any other
-implication that these Warranty Disclaimers may have is void and has
-no effect on the meaning of this License.
-
-@item
-VERBATIM COPYING
-
-You may copy and distribute the Document in any medium, either
-commercially or noncommercially, provided that this License, the
-copyright notices, and the license notice saying this License applies
-to the Document are reproduced in all copies, and that you add no other
-conditions whatsoever to those of this License.  You may not use
-technical measures to obstruct or control the reading or further
-copying of the copies you make or distribute.  However, you may accept
-compensation in exchange for copies.  If you distribute a large enough
-number of copies you must also follow the conditions in section 3.
-
-You may also lend copies, under the same conditions stated above, and
-you may publicly display copies.
-
-@item
-COPYING IN QUANTITY
-
-If you publish printed copies (or copies in media that commonly have
-printed covers) of the Document, numbering more than 100, and the
-Document's license notice requires Cover Texts, you must enclose the
-copies in covers that carry, clearly and legibly, all these Cover
-Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
-the back cover.  Both covers must also clearly and legibly identify
-you as the publisher of these copies.  The front cover must present
-the full title with all words of the title equally prominent and
-visible.  You may add other material on the covers in addition.
-Copying with changes limited to the covers, as long as they preserve
-the title of the Document and satisfy these conditions, can be treated
-as verbatim copying in other respects.
-
-If the required texts for either cover are too voluminous to fit
-legibly, you should put the first ones listed (as many as fit
-reasonably) on the actual cover, and continue the rest onto adjacent
-pages.
-
-If you publish or distribute Opaque copies of the Document numbering
-more than 100, you must either include a machine-readable Transparent
-copy along with each Opaque copy, or state in or with each Opaque copy
-a computer-network location from which the general network-using
-public has access to download using public-standard network protocols
-a complete Transparent copy of the Document, free of added material.
-If you use the latter option, you must take reasonably prudent steps,
-when you begin distribution of Opaque copies in quantity, to ensure
-that this Transparent copy will remain thus accessible at the stated
-location until at least one year after the last time you distribute an
-Opaque copy (directly or through your agents or retailers) of that
-edition to the public.
-
-It is requested, but not required, that you contact the authors of the
-Document well before redistributing any large number of copies, to give
-them a chance to provide you with an updated version of the Document.
-
-@item
-MODIFICATIONS
-
-You may copy and distribute a Modified Version of the Document under
-the conditions of sections 2 and 3 above, provided that you release
-the Modified Version under precisely this License, with the Modified
-Version filling the role of the Document, thus licensing distribution
-and modification of the Modified Version to whoever possesses a copy
-of it.  In addition, you must do these things in the Modified Version:
-
-@enumerate A
-@item
-Use in the Title Page (and on the covers, if any) a title distinct
-from that of the Document, and from those of previous versions
-(which should, if there were any, be listed in the History section
-of the Document).  You may use the same title as a previous version
-if the original publisher of that version gives permission.
-
-@item
-List on the Title Page, as authors, one or more persons or entities
-responsible for authorship of the modifications in the Modified
-Version, together with at least five of the principal authors of the
-Document (all of its principal authors, if it has fewer than five),
-unless they release you from this requirement.
-
-@item
-State on the Title page the name of the publisher of the
-Modified Version, as the publisher.
-
-@item
-Preserve all the copyright notices of the Document.
-
-@item
-Add an appropriate copyright notice for your modifications
-adjacent to the other copyright notices.
-
-@item
-Include, immediately after the copyright notices, a license notice
-giving the public permission to use the Modified Version under the
-terms of this License, in the form shown in the Addendum below.
-
-@item
-Preserve in that license notice the full lists of Invariant Sections
-and required Cover Texts given in the Document's license notice.
-
-@item
-Include an unaltered copy of this License.
-
-@item
-Preserve the section Entitled ``History'', Preserve its Title, and add
-to it an item stating at least the title, year, new authors, and
-publisher of the Modified Version as given on the Title Page.  If
-there is no section Entitled ``History'' in the Document, create one
-stating the title, year, authors, and publisher of the Document as
-given on its Title Page, then add an item describing the Modified
-Version as stated in the previous sentence.
-
-@item
-Preserve the network location, if any, given in the Document for
-public access to a Transparent copy of the Document, and likewise
-the network locations given in the Document for previous versions
-it was based on.  These may be placed in the ``History'' section.
-You may omit a network location for a work that was published at
-least four years before the Document itself, or if the original
-publisher of the version it refers to gives permission.
-
-@item
-For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
-the Title of the section, and preserve in the section all the
-substance and tone of each of the contributor acknowledgements and/or
-dedications given therein.
-
-@item
-Preserve all the Invariant Sections of the Document,
-unaltered in their text and in their titles.  Section numbers
-or the equivalent are not considered part of the section titles.
-
-@item
-Delete any section Entitled ``Endorsements''.  Such a section
-may not be included in the Modified Version.
-
-@item
-Do not retitle any existing section to be Entitled ``Endorsements'' or
-to conflict in title with any Invariant Section.
-
-@item
-Preserve any Warranty Disclaimers.
-@end enumerate
-
-If the Modified Version includes new front-matter sections or
-appendices that qualify as Secondary Sections and contain no material
-copied from the Document, you may at your option designate some or all
-of these sections as invariant.  To do this, add their titles to the
-list of Invariant Sections in the Modified Version's license notice.
-These titles must be distinct from any other section titles.
-
-You may add a section Entitled ``Endorsements'', provided it contains
-nothing but endorsements of your Modified Version by various
-parties---for example, statements of peer review or that the text has
-been approved by an organization as the authoritative definition of a
-standard.
-
-You may add a passage of up to five words as a Front-Cover Text, and a
-passage of up to 25 words as a Back-Cover Text, to the end of the list
-of Cover Texts in the Modified Version.  Only one passage of
-Front-Cover Text and one of Back-Cover Text may be added by (or
-through arrangements made by) any one entity.  If the Document already
-includes a cover text for the same cover, previously added by you or
-by arrangement made by the same entity you are acting on behalf of,
-you may not add another; but you may replace the old one, on explicit
-permission from the previous publisher that added the old one.
-
-The author(s) and publisher(s) of the Document do not by this License
-give permission to use their names for publicity for or to assert or
-imply endorsement of any Modified Version.
-
-@item
-COMBINING DOCUMENTS
-
-You may combine the Document with other documents released under this
-License, under the terms defined in section 4 above for modified
-versions, provided that you include in the combination all of the
-Invariant Sections of all of the original documents, unmodified, and
-list them all as Invariant Sections of your combined work in its
-license notice, and that you preserve all their Warranty Disclaimers.
-
-The combined work need only contain one copy of this License, and
-multiple identical Invariant Sections may be replaced with a single
-copy.  If there are multiple Invariant Sections with the same name but
-different contents, make the title of each such section unique by
-adding at the end of it, in parentheses, the name of the original
-author or publisher of that section if known, or else a unique number.
-Make the same adjustment to the section titles in the list of
-Invariant Sections in the license notice of the combined work.
-
-In the combination, you must combine any sections Entitled ``History''
-in the various original documents, forming one section Entitled
-``History''; likewise combine any sections Entitled ``Acknowledgements'',
-and any sections Entitled ``Dedications''.  You must delete all
-sections Entitled ``Endorsements.''
-
-@item
-COLLECTIONS OF DOCUMENTS
-
-You may make a collection consisting of the Document and other documents
-released under this License, and replace the individual copies of this
-License in the various documents with a single copy that is included in
-the collection, provided that you follow the rules of this License for
-verbatim copying of each of the documents in all other respects.
-
-You may extract a single document from such a collection, and distribute
-it individually under this License, provided you insert a copy of this
-License into the extracted document, and follow this License in all
-other respects regarding verbatim copying of that document.
-
-@item
-AGGREGATION WITH INDEPENDENT WORKS
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-A compilation of the Document or its derivatives with other separate
-and independent documents or works, in or on a volume of a storage or
-distribution medium, is called an ``aggregate'' if the copyright
-resulting from the compilation is not used to limit the legal rights
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-When the Document is included in an aggregate, this License does not
-apply to the other works in the aggregate which are not themselves
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-If the Cover Text requirement of section 3 is applicable to these
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-the entire aggregate, the Document's Cover Texts may be placed on
-covers that bracket the Document within the aggregate, or the
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-Otherwise they must appear on printed covers that bracket the whole
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-
-@item
-TRANSLATION
-
-Translation is considered a kind of modification, so you may
-distribute translations of the Document under the terms of section 4.
-Replacing Invariant Sections with translations requires special
-permission from their copyright holders, but you may include
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-translation of this License, and all the license notices in the
-Document, and any Warranty Disclaimers, provided that you also include
-the original English version of this License and the original versions
-of those notices and disclaimers.  In case of a disagreement between
-the translation and the original version of this License or a notice
-or disclaimer, the original version will prevail.
-
-If a section in the Document is Entitled ``Acknowledgements'',
-``Dedications'', or ``History'', the requirement (section 4) to Preserve
-its Title (section 1) will typically require changing the actual
-title.
-
-@item
-TERMINATION
-
-You may not copy, modify, sublicense, or distribute the Document
-except as expressly provided under this License.  Any attempt
-otherwise to copy, modify, sublicense, or distribute it is void, and
-will automatically terminate your rights under this License.
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-However, if you cease all violation of this License, then your license
-from a particular copyright holder is reinstated (a) provisionally,
-unless and until the copyright holder explicitly and finally
-terminates your license, and (b) permanently, if the copyright holder
-fails to notify you of the violation by some reasonable means prior to
-60 days after the cessation.
-
-Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
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-your receipt of the notice.
-
-Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
-reinstated, receipt of a copy of some or all of the same material does
-not give you any rights to use it.
-
-@item
-FUTURE REVISIONS OF THIS LICENSE
-
-The Free Software Foundation may publish new, revised versions
-of the GNU Free Documentation License from time to time.  Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.  See
-@uref{http://www.gnu.org/copyleft/}.
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-Each version of the License is given a distinguishing version number.
-If the Document specifies that a particular numbered version of this
-License ``or any later version'' applies to it, you have the option of
-following the terms and conditions either of that specified version or
-of any later version that has been published (not as a draft) by the
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-number of this License, you may choose any version ever published (not
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-version permanently authorizes you to choose that version for the
-Document.
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-
-``Massive Multiauthor Collaboration Site'' (or ``MMC Site'') means any
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-provides prominent facilities for anybody to edit those works.  A
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-``Incorporate'' means to publish or republish a Document, in whole or
-in part, as part of another Document.
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-An MMC is ``eligible for relicensing'' if it is licensed under this
-License, and if all works that were first published under this License
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-or in part into the MMC, (1) had no cover texts or invariant sections,
-and (2) were thus incorporated prior to November 1, 2008.
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-The operator of an MMC Site may republish an MMC contained in the site
-under CC-BY-SA on the same site at any time before August 1, 2009,
-provided the MMC is eligible for relicensing.
-
-@end enumerate
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-@page
-@heading ADDENDUM: How to use this License for your documents
-
-To use this License in a document you have written, include a copy of
-the License in the document and put the following copyright and
-license notices just after the title page:
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-@smallexample
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-  Permission is granted to copy, distribute and/or modify this document
-  under the terms of the GNU Free Documentation License, Version 1.3
-  or any later version published by the Free Software Foundation;
-  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
-  Texts.  A copy of the license is included in the section entitled ``GNU
-  Free Documentation License''.
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-@end smallexample
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-If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
-replace the ``with@dots{}Texts.''@: line with this:
-
-@smallexample
-@group
-    with the Invariant Sections being @var{list their titles}, with
-    the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
-    being @var{list}.
-@end group
-@end smallexample
-
-If you have Invariant Sections without Cover Texts, or some other
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-situation.
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-If your document contains nontrivial examples of program code, we
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-to permit their use in free software.
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-@c Local Variables:
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-@c End:
diff --git a/src/bfind.auto-completion b/src/bfind.auto-completion
deleted file mode 100644
index ecc95f8..0000000
--- a/src/bfind.auto-completion
+++ /dev/null
@@ -1,17 +0,0 @@
-(bfind
-	(unargumented  (options -x --xdev)  (complete --xdev)
-	(desc 'Crawl across mount points'))
-
-	(unargumented  (options -h --hardlinks)  (complete --hardlinks)
-	(desc 'Be aware of hardlinked directories'))
-
-	(unargumented  (options -s --symlinks)  (complete --symlinks)
-	(desc 'Crawl symbolically linked directories, but never visit more than once'))
-
-	(unargumented  (options -v --visible)  (complete --visible)
-	(desc 'Do not list files starting with a dot'))
-
-	(unargumented  (options -0 --print0)  (complete --print0)
-	(desc 'Terminate lines with NUL instead of LF'))
-)
-
diff --git a/src/bfind.py b/src/bfind.py
deleted file mode 100755
index ccedfd3..0000000
--- a/src/bfind.py
+++ /dev/null
@@ -1,87 +0,0 @@
-#!/usr/bin/env python3
-'''
-bfind – Minimalitic `find` using breadth first crawling
-
-Copyright © 2013  Mattias Andrée (maandree@member.fsf.org)
-
-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 3 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.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-'''
-
-import sys
-import os
-
-xdev = False
-hardlinks = False
-symlinks = False
-visible = False
-ending = '\n'.encode('utf-8')
-dashed = False
-path = ''
-
-for arg in sys.argv[1:]:
-    if dashed or arg[:1] != '-':  path   = arg
-    elif arg == '':               dashed = True
-    else:
-        if arg == '--xdev'      or (arg[:2] != '--' and 'x' in arg):  xdev      = True
-        if arg == '--hardlinks' or (arg[:2] != '--' and 'h' in arg):  hardlinks = True
-        if arg == '--symlinks'  or (arg[:2] != '--' and 's' in arg):  symlinks  = True
-        if arg == '--visible'   or (arg[:2] != '--' and 'v' in arg):  visible   = True
-        if arg == '--print0'    or (arg[:2] != '--' and '0' in arg):  ending    = '\0'.encode('utf-8')
-
-visited_name = set()
-visited_id = set()
-queue = None
-start_dev = os.stat(path if path != '' else '.').st_dev
-start_len = len(path)
-
-if path == '':
-    queue = os.listdir()
-else:
-    queue = [path]
-
-while len(queue) > 0:
-    path = queue[0]
-    queue[:] = queue[1:]
-    if visible:
-        if (os.sep + '.') in path[start_len:]:
-            continue
-        elif (start_len == 0) and path.startswith('.'):
-            continue
-    if hardlinks:
-        stat = os.stat(path)
-        stat = (stat.st_dev, stat.st_ino)
-        if stat in visited_id:
-            continue
-        visited_id.add(stat)
-    elif symlinks: ## no need if dev/ino is tested
-        if os.path.realpath(path) in visited_name:
-            continue
-        visited_name.add(os.path.realpath(path))
-    sys.stdout.buffer.write(path.encode('utf-8'))
-    sys.stdout.buffer.write(ending)
-    sys.stdout.buffer.flush()
-    if not xdev:
-        try:
-            if os.stat(path).st_dev != start_dev:
-                continue
-        except:
-            pass # link is broken
-    if os.path.isdir(path) and (symlinks or not os.path.islink(path)):
-        try:
-            for subd in os.listdir(path):
-                subd = path + os.sep + subd
-                queue.append(subd)
-        except PermissionError:
-            print('Permission denied: %s' % path)
-