2024-07-02  Sergey Poznyakoff  <gray@gnu.org>

	Version 5.4

2024-06-25  Sergey Poznyakoff  <gray@gnu.org>

	Update copyright years; clean up whitespace.

	Avoid race condition on a delete event.

	* src/direvent.c (main): Call synthetic_event_flush in the main loop.
	* src/direvent.h (synthetic_event_enqueue)
	(synthetic_event_update)
	(synthetic_event_flush)
	(evtxor): New macros.
	* src/ev_inotify.c (process_event): Call synthetic_event_update before
	running handlers.
	* src/ev_kqueue.c: Likewise.
	* src/event.c (evtxor): New function.
	* src/watcher.c (watchpoint_install_sentinel): Avoid race condition
	that occurs if a file is re-created between deleting it and installing
	a sentinel.
	(synthetic_event_enqueue)
	(synthetic_event_update)
	(synthetic_event_flush): New functions.

2024-06-24  Sergey Poznyakoff  <gray@gnu.org>

	Bugfixes

	* src/handler.c (handler_list_remove): Unref hp when removing it
	from the list.
	* src/progman.c (prog_handler_run): Improve diagnostics; avoid
	memory leak.
	* src/watcher.c (watchpoint_init): Remove original watchpoint
	to maintain its reference count.

2024-06-22  Sergey Poznyakoff  <gray@gnu.org>

	Keep track of the number of running handler instances.

	* NEWS: Document changes.
	* doc/direvent.texi: Document the max-instances statement.
	* src/config.c (cb_option): Change handing of wait/nowait options.
	(watcher_kw): New statement: max-instances.
	* src/direvent.h (HF_NOWAIT): Remove. Define HF_WAIT instead. This
	fixes the 'nowait' default.
	(prog_handler): New fields: max_count, run_count.
	* src/progman.c (process): New field: hp.
	(register_process): Take a pointer to the prog_hander as argument.
	Initialize the hp->field.
	(deregister_process): Remove unused function.
	(process_cleanup): Decrease run_count.
	(prog_handler_run): Keep track of the number of running instances.

	Use getgrouplist if available

2024-06-21  Sergey Poznyakoff  <gray@gnu.org>

	Upgrade to newer autoconf and grecs

	* acinclude.m4: Remove.
	* configure.ac: Upgrade for autoconf 2.71.
	* grecs: Upgrade.

	Upgrade grecs

	Revamp directory splitting.

	Until now, splitting a watcher dirname into directory and filename
	components was performed in-place, restoring the original dirname
	when no longer needed.  This caused grief when installing sentinels
	for removed files: if the full file name and its directory part
	yielded the same hash in grecs_symtab_lookup_or_install called from
	watchpoint_install, the original watchpoint would be returned instead
	of creating a new one.  Consequently, the created sentinel would never
	be able to catch file creation.

	* NEWS: Version 5.3.90
	* configure.ac: Likewise.
	* src/direvent.h (watchpoint): New fields: split_dirname, split_filename.
	Remove split_p.
	(split_pathname, unsplit_pathname): Remove protos.
	(watchpoint_extract_filename): New proto.
	* src/ev_inotify.c: Use watchpoint_extract_filename intstead of the
	removed split/unsplit functions.
	* src/ev_kqueue.c: Likewise.
	* src/watcher.c (watchpoint_unref): Free split_dirname and split_filename.
	(watchpoint_install_sentinel): Use watchpoint_extract_filename.
	(split_pathname, unsplit_pathname): Remove.
	(watchpoint_extract_filename): New function.
	* tests/genfile.c (main): Fix improper variable use.

2024-05-28  Sergey Poznyakoff  <gray@gnu.org>

	Fix bug in generic to system event translation

	* src/event.c (evtrans_gen_to_sys): Include original sys_mask bits as well.

2022-01-02  Sergey Poznyakoff  <gray@gnu.org>

	Update copyright year

2021-12-30  Sergey Poznyakoff  <gray@gnu.org>

	Fix typo in doc/webdoc.init

	Version 5.3

	Minor changes

	* doc/.gitignore: Update.
	* tests/shell.at: Force /bin/sh as the shell

2021-12-29  Sergey Poznyakoff  <gray@gnu.org>

	Bugfix

	Unify text of copyright headers

	Fix building online docs

	Update documentation.  Version 5.2.90

2021-12-27  Sergey Poznyakoff  <gray@gnu.org>

	Don't pollute the environment with macro variables.

	* src/config.c (cb_global_environ): Remove unused local variable.
	Disallow legacy syntax.
	* src/progman.c (defenv): Change structure fields.
	(parse_legacy_env): Update accordingly.
	(runcmd): Define macro names as environment variables while processing
	the "environ" configure statements and undefine them afterwards.  If
	"shell" option is set, expand only macro variables in command names,
	otherwise expand both environment and macro variables.

2021-12-26  Sergey Poznyakoff  <gray@gnu.org>

	New configuration statement for manipulating the environment.

	The "environ" statement is now a compound statement. It can contain five
	kinds of substatements: "clear" to clear the environment, "keep" to retain
	certain variables while clearing the environment, "set" to set a variable,
	"unset" to unset a variable or variables, and "eval" to evaluate a variable
	reference for side effects.

	Both "keep" and "unset" can take globbing pattern as their argument,
	in which case they affect all variables matching that pattern.

	The value part in the "set" statement is subject to variable expansion,
	e.g.

	    set "MANPATH=$MANPATH${MANPATH:+:}/usr/local/man"

	The "environ" block can appear in global context as well.  In this case it
	applies to all watchers.

	The support for the old one-line "environ" statement is retained for
	backward compatibility.

	* grecs: Upgrade.
	* src/Makefile.am: Add new files.
	* src/envop.c: New file (fromGNU pies).
	* src/envop.h: Likewise.
	* src/wildmatch.c: Likewise.
	* src/config.c: Add support for block "environ" statement, both global
	and watcher-scope.
	Turn off concatenation of adjacent string literals.
	* src/direvent.h: Include envop.h
	(prog_handler): Remove env.  New field envop.
	(prog_handler_envrealloc): Remove.
	(direvent_envop): New global.
	* src/environ.c: Remove.
	* src/progman.c (parse_legacy_env): New function.
	(runcmd): Rewrite.
	(prog_handler_envrealloc): Remove.
	* tests/Makefile.am: Add new testcases.
	* tests/testsuite.at: Likewise.
	* tests/env00.at: New file.
	* tests/env01.at: New file.
	* tests/env02.at: New file.
	* tests/env03.at: New file.
	* tests/env04.at: New file.
	* tests/env05.at: New file.
	* tests/env06.at: New file.
	* tests/envdump.c: New options: -A and -D.
	* tests/envleg00.at: New file (renamed from env00.at).
	* tests/envleg01.at: New file (renamed from env01.at).
	* tests/envleg02.at: New file (renamed from env02.at).
	* tests/envleg03.at: New file (renamed from env03.at).
	* tests/shell.at: Use backslash continuation instead of
	relying on implicit concatenation of adjacent string literals.

2021-12-25  Sergey Poznyakoff  <gray@gnu.org>

	Rewrite event formatting and logging functions

	* src/direvent.c (trans_stat, flags_format, ev_format): New functions.
	(ev_log): Rewrite.
	* src/direvent.h (ev_format): New prototype.
	(ev_log): Change prototype.
	* src/ev_inotify.c (process_event): Use new logging functions.
	* src/ev_kqueue.c: Likewise.
	* src/progman.c (runcmd): Use ev_format to format values for genev_name
	and sysev_name.

	Minor changes in progman

	Mostly terminology issues: "redirector" process renamed to "logger".

2021-12-24  Sergey Poznyakoff  <gray@gnu.org>

	Change interface for bulk closing of fds

	* configure.ac: Select interface to use for bulk closing of the open
	file descriptors.
	* src/Makefile.am: Add closefds.c
	* src/closefds.c: New file.
	* src/direvent.h (close_fds): New proto.
	* src/progman.c: Use new close_fds.

	Fix tracking of file changed status for inotify.

	* src/direvent.h (watchpoint): Remove the written field.
	[IFACE_KQUEUE] New field file_changed.
	[IFACE_INOTIFY] New field files_changed.
	* src/ev_inotify.c (file_changed): New function.
	(process_event): Use file_changed to verify file status.
	* src/ev_kqueue.c (sysev_add_watch,process_event): written renamed to
	file_changed.
	* src/watcher.c (watchpoint_unref) [IFACE_INOTIFY]: Deallocate
	files_changed.

	Various fixes.

	* src/direvent.c (nomem_abend): New function.
	(emalloc,ecalloc,erealloc): Use nomem_abend on out of memory
	error.
	* src/direvent.h (nomem_abend): New proto.
	* src/ev_inotify.c (process_event): The "changed" generic event
	includes creation of the file.
	Add missing gettext markers.
	Don't process events generated for the watchpoint directory itself.
	* src/ev_kqueue.c: Add missing gettext markers.
	* src/progman.c: Revamp debug messages.
	* src/watcher.c (watchpoint_filemask): New function.
	(watchpoint_install): Call nomem_abend on out of memory
	error.
	(watchpoint_suspend): Stop the program if unable to install sentinel.
	(directory_sentinel_handler_run,watch_subdirs): Use watchpoint_filemask.

2021-12-23  Sergey Poznyakoff  <gray@gnu.org>

	Remove debugging messages

	Linux support for the new event handling.  Follows up 048e7379d116

	* src/direvent.h (watchpoint) <written>: Move out of preprocessor
	conditional.
	* src/ev_inotify.c (genev_xlat): GENEV_WRITE maps to GENEV_WRITE.
	(sysev_add_watch): If GENEV_CHANGE is requested, raise
	IN_MODIFY and IN_CLOSE_WRITE.
	(process_event): Translate system events to generic event mask
	prior to distributing the event to handlers.
	* src/progman.c (close_fds): One more fix.  See also cba6578a56
	* tests/change.at: New testcase.
	* tests/Makefile.am: Add change.at
	* tests/testsuite.at: Include change.at
	* tests/createrec2.at: Reorder options to genfile.
	* tests/genfile.c: Accept multiple -s and -t options.

2021-12-23  Sergey Poznyakoff  <gray@gnu.org.ua>

	Rewrite event handling.  Introduce compound events ("change").  BSD-only.

	* src/config.c (cb_watcher): Use evtfill.
	* src/direvent.c (trans_fullmask): New function.
	(genev_init): Remove.  All references changed.
	* src/direvent.h (GENEV_CHANGE): New generic event.
	(handler_matches_event): Remove macro.
	(defevt,event_mask_init,evtsetall,genev_xlat): Remove declarations.
	(evtempty,evtfill)
	(evtrans_sys_to_gen,evtrans_gen_to_sys)
	(trans_fullmask): New protos.
	(watchpoint_run_handlers): Change signature.
	* src/ev_kqueue.c (genev_xlat): Change GENEV_WRITE translation.
	(sysev_add_watch): Change computation of sysmask.
	(process_event): Translate system event flags to generici event mask
	prior to distributing the event to handlers.
	Don't call user handlers for directories.
	* src/event.c (getevt): Rewrite.
	(defevt,event_mask_init): Remove.
	(evtempty,evtfill,evtand,evtrans_sys_to_gen)
	(evtrans_gen_to_sys): New functions.
	(genev_transtab): Declare the "change" event.
	* src/handler.c (watchpoint_run_handlers): Take event_mask as argument.
	Change logic accordingly.
	* src/watcher.c (deliver_ev_create): Use evtand and filpatlist_match
	explicitly, instead of the removed handler_matches_event.

2021-12-21  Sergey Poznyakoff  <gray@gnu.org.ua>

	Remove unnecessary field of struct watcher.

	* src/direvent.h (watcher): Remove watch_written.
	* src/ev_kqueue.c (sysev_add_watch,process_event): Update accordingly.

2021-12-21  Sergey Poznyakoff  <gray@gnu.org>

	Remove spurious comma

2021-12-21  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix test sent.at on Linux

	Minor fix

	* src/ev_kqueue.c (process_event): Protect the use of NOTE_CLOSE_WRITE
	with #ifdef.

	Bugfixes (mostly BSD-related)

	* src/direvent.h (watchpoint): Remove file_mode.
	* src/ev_kqueue.c (sysev_add_watch): Actually register new event to
	minimize the race condition window.
	(check_created): Check for error if readdir returns NULL.
	(process_event): Check for new files and directories after running
	event handlers.
	* src/progman.c (close_fds): Bugfix.  Start from the highest possible fd.
	(open_redirector): Fix loop condition.
	* src/watcher.c (watch_subdirs): Check for error if readdir returns NULL.
	* tests/listname: New auxiliary script.
	* tests/Makefile.am: Distribute listname.
	* tests/createrec.at: Rewrite test.  Use the listname script to monitor
	and govern it.
	* tests/createrec3.at: Likewise.

2021-12-20  Sergey Poznyakoff  <gray@gnu.org.ua>

	Update grecs

	Change handling of GENEV_CREATE on FreeBSD

	* src/direvent.h (event_handler_fn): Additional argument: notify.
	(watchpoint) [USE_IFACE == IFACE_KQUEUE]: New members: watch_written,
	written.
	* src/ev_kqueue.c (sysev_transtab): Define more system events (if
	defined).
	(genev_xlat): Depending on whether NOTE_CLOSE_WRITE is defined,
	change GENEV_WRITE translation.
	(sysev_add_watch) [NOTE_CLOSE_WRITE]: Initialize written and watch_written.
	Update sysmask.
	(process_event): Special handling for watch_written!=0
	* src/handler.c (watchpoint_run_handlers): Pass notify (1) to hp->run.
	* src/progman.c (prog_handler_run): New argument: notify.  Do nothing
	if it's 0.
	* src/watcher.c (sentinel_handler_run): New argument: notify.  Pass it
	deliver_ev_create.
	(directory_sentinel_handler_run): New argument: notify.  Pass it
	to watch_subdirs.
	Call watchpoint_attach_directory_sentinel if using IFACE_KQUEUE.
	(deliver_ev_create): Pass notify to hp->run.

	* tests/createrec3.at: New test.
	* tests/genfile.c: New program.
	* tests/Makefile.am: Add createrec3.at
	(noinst_PROGRAMS): Add genfile.
	* tests/createrec2.at: Use genfile with 1 second delay.
	* tests/sent.at: Update expected output.
	* tests/testsuite.at: Add genfile.

2021-12-20  Sergey Poznyakoff  <gray@gnu.org>

	Upgrade grecs (fixes grecs_symtab_foreach)

	Rewrite the recursive watching support

	* src/config.c (eventconf_flush): Attach directory sentinel
	when recursive whatching is enabled or when using IFACE_KQUEUE
	* src/direvent.h (handler) <notify_always>: New member.
	(recent_head): New type.
	(watchpoint) <rhead>: New member.
	(check_new_watcher): Remove.
	(watchpoint_attach_directory_sentinel): New proto.
	(deliver_ev_create): Change signature.
	(watchpoint_recent_init)
	(watchpoint_recent_deinit)
	(watchpoint_recent_lookup)
	(watchpoint_recent_cleanup): New protos.
	(handler_list_append_cow)
	(handler_list_remove_cow): New protos.
	* src/ev_inotify.c (process_event): When a IN_CREATE is received,
	first check if the created file is in the recent file list (rhead).
	If so, don't deliver the event.  This avoids spurious create events.
	* src/ev_kqueue.c (sysev_filemask): Always return S_IFMT.
	(check_created): Deliver the create event.  Remove call to
	subwatcher_create.  The create event will trigger creation of new
	watchpoints.
	* src/handler.c (handler_list_dup): New function.
	(handler_list_append_cow)
	(handler_list_remove_cow): New copy-on-write interfaces.
	* src/progman.c (process_timeouts): Initialize alarm_time with the
	return from watchpoint_recent_cleanup.  Initialize the notify_always
	member of the struct handler.
	* src/watcher.c (watchpoint_unref): De-initialize the recent object
	list.
	(watchpoint_destroy): Likewise.
	(watchpoint_recent_init)
	(watchpoint_recent_deinit)
	(watchpoint_recent_lookup)
	(watchpoint_recent_cleanup): New functions.  Maintain the list of
	recent objects.
	(watchpoint_install_sentinel): Set notify_always.
	(directory_sentinel_handler_run)
	(watchpoint_attach_directory_sentinel): New functions.
	(watchpoint_init): Don't enforce create event if recursive watching is
	enabled.
	(subwatcher_create,check_new_watcher): Remove.
	(deliver_ev_create): New argument: notify.
	(watch_subdirs): Rewrite.
	* tests/createrec2.at: Re-insert delays between directory and file
	creation.

2021-12-09  Sergey Poznyakoff  <gray@gnu.org>

	Out of band events considered a failed experiment

	This also makes createrec2.sh pass on BSD systems

	* src/direvent.h: Remove GENEV_OOB
	* src/event.c (genev_transtab): Likewise.
	* src/ev_kqueue.c (check_created): Set a subwatcher only if
	parent watcher depth is not 0.
	* src/watcher.c (deliver_ev_create) Revert previous commit.
	(watch_subdirs): Clear S_IFDIR bit if parent depth is 0.

2021-12-08  Sergey Poznyakoff  <gray@gnu.org>

	Mark generated CREATE events as out of band.

	Deliver such events to each handler that receives CREATE and WRITE
	events.  This makes sure all handler have a chance to notice creation
	of a file within the time that expires between  creation of a directory
	and creation of a watchpoint for it.  Introduce new marker (flag) for
	such out of band data.

	Make sure out of band CREATE notifications are sent to the deepest
	created watchpoint, in case the recursion depth is limited.

	* src/direvent.h (GENEV_OOB): New macro for out of band events.
	* src/event.c (genev_transtab): Add an entry for GENEV_OOB.
	* src/watcher.c (deliver_ev_create): Deliver out of band CREATE
	event.  Receipients are all handlers that requested CREATE or WRITE
	events.
	(check_new_watcher): Fix misleading comment.
	(watch_subdirs):  Make sure out of band CREATE notifications are sent
	if the watchpoint has zero depth (last directory in a depth-limited
	recusive watchpoint chain).
	* tests/createrec2.at: Remove sleeps between creation of a directory
	and creation of a file in it.

	Format $genev_name in accordance with the documentation.

	I.e., if several events are reported, $genev_name contains a
	whitespace-delimited list of event names.

	* src/progman.c (runcmd): use trans_tokfirst/trans_toknext to format
	genev_name.

	Test recursion depth limit.

	testsuite: don't use syslog

2021-01-06  Sergey Poznyakoff  <gray@gnu.org>

	Update copyright years

2020-07-08  Sergey Poznyakoff  <gray@gnu.org>

	Fix handler reference count

	* src/handler.c: Fix condition

2020-07-06  Sergey Poznyakoff  <gray@gnu.org>

	Fix recursive watchers.

	Recursive watchers silently assumed that the "create" generic event
	was configured for the watcher.  If it wasn't the case, the watcher
	failed to catch mkdir events and install subwatchers.  This patch
	fixes it.

	* src/watcher.c (watchpoint_init): Register the create event if
	recursive watching is requested.

2020-06-29  Sergey Poznyakoff  <gray@gnu.org>

	Upgrade grecs to fix parallel builds

2020-06-28  Sergey Poznyakoff  <gray@gnu.org>

	Use grecs eb98370ae0 to fix bison 3.6.4 warnings

2020-06-14  Sergey Poznyakoff  <gray@gnu.org>

	Use grecs with wordsplit v1.1

2019-07-13  Sergey Poznyakoff  <gray@gnu.org>

	Version 5.2

2019-07-10  Sergey Poznyakoff  <gray@gnu.org>

	Switch to grecs b06fb7d3

2016-08-25  Sergey Poznyakoff  <gray@gnu.org>

	Update the documentation

2016-08-25  Sergey Poznyakoff  <gray@gnu.org.ua>

	Get rid of hashtab.c, use symtab from grecs instead.

	* grecs: Pull new version.
	* src/hashtab.c: Remove.
	* po/POTFILES.in: Remove src/hashtab.c
	* src/Makefile.am (direvent_SOURCES): Remove hashtab.c
	* src/config.c (grecs_parser_options): Set GRECS_OPTION_QUOTED_STRING_CONCAT.
	* src/direvent.h: Remove hashtab prototypes.
	* src/event.c: Use grecs_symtab.
	* src/watcher.c: Likewise.

	Rename a test case

	* tests/Makefile.am: Update.
	* tests/testsuite.at: Update.
	* tests/conv.at: Rename to tests/file.at

	Fix new functionality on BSD hosts.  Some minor fixes.

	* src/direvent.c (main): Call watchpoint_gc in the main loop.
	* src/direvent.h (watchpoint) <isdir>: New member.
	(deliver_ev_create,subwatcher_create): Change signature.
	* src/ev_kqueue.c (sysev_add_watch): Always monitor NOTE_DELETE.
	(process_event): Special handling for file deletion.
	* src/handler.c (handler_list_remove): Return the number of elements
	remaining in the list.
	* src/hashtab.c (hashtab_remove): Ignore unexisting entries
	* src/progman.c (close_fds): Determine the highest used fd by
	dup'ing standard input.
	* src/watcher.c (watchpoint_install): Always increase refcnt.
	(watchpoint_gc_list): New variable.
	(watchpoint_gc): Iterate over watchpoint_gc_list deleting
	elements from it.
	(watchpoint_suspend): Install sentinels only for top-level
	watchpoints that were removed.
	(sentinel_handler_run): Deliver the create event.
	(watchpoint_install_sentinel): Monitor generic create event.
	(convert_watcher): Remove.
	(subwatcher_create): Remove the isdir parameter.
	(watch_subdirs): Exit early if the watchpoint is not a
	directory.
	(deliver_ev_create): Change signature.  Take both directory
	and file name as arguments. All uses changes.
	* tests/conv.at: Clear expected stderr.
	* tests/sent.at: Fix race condition.

	Add new tests + minor fixes.

	* src/direvent.h (filpatlist_is_empty): New proto.
	* src/fnpat.c (filpatlist_is_empty): New function.
	* src/watcher.c (convert_watcher): Fix error handling.
	(watchpoint_init): Remove spurious notice.

	* tests/conv.at: New test.
	* tests/sent.at: New test.
	* tests/Makefile.am: Add new tests.
	* tests/testsuite.at: Likewise.

	Further modify struct handler.

	Instead of accomodating two types of functionality, the new struct handler
	has a pointer to the function that is responsible for handling the event,
	and a pointer to data for that function (closure).  Additionally, a
	pointer to deallocator function is also provided.

	Existing functionality is reimplemented using this new struct.  New
	types of handlers can easily be added.

	* src/config.c (eventconf)<ev_mask,fpat,prog_handler>: New members
	<handler>: Remove.
	All uses changed.
	* src/direvent.h (filpatlist_t)
	(event_handler_fn, handler_free_fn): New data types.
	(handler): Remove union and type.  Add two pointer to functions
	that are to implement the functionality (run and free) and a pointer
	to data for them.
	(prog_handler): New struct.
	(prog_handler_alloc,prog_handler_free)
	(prog_handler_envrealloc)
	(watchpoint_run_handlers): New protos.
	(run_handler,filename_pattern_free)
	(filename_pattern_match): Remove
	(filpatlist_add, filpatlist_add_exact)
	(filpatlist_destroy, filpatlist_match): New protos.
	* src/ev_inotify.c (process_event): Use watchpoint_run_handlers
	* src/ev_kqueue.c: Likewise.
	* src/fnpat.c: Major rewrite.
	* src/handler.c (handler_copy)
	(handler_envrealloc,handler_add_pattern)
	(handler_add_exact_filename): Remove
	(handler_alloc): Change arguments.
	(watchpoint_run_handlers): New function.
	* src/progman.c (prog_handler_alloc)
	(prog_handler_envrealloc): New functions.
	* src/watcher.c: Reimplement sentinel watchers.

	Rename: struct dirwatcher -> struct watchpoint

	Implement sentinel handlers.

	Sentinel handlers wait for a creation of a directory.  When
	the target directory is created, the sentinel handler installs
	the actual handler for that directory and destroys itself.  Thus,
	basically sentinel handlers provide a way to defer setting a
	watchpoint on a directory until it is created.

	* src/handler.c: New source.
	* src/Makefile.am (direvent_SOURCES): Add handler.c
	* src/config.c: Move handler-specific stuff to handler.c
	* src/direvent.h: Rename direvent_handler_ to handler_
	(handler_free, handler_copy)
	(handler_envrealloc)
	(dirwatcher_init,dirwatcher_gc): New protos.
	(dirwatcher_install_ptr)
	(dirwatcher_install_sentinel): New protos.
	* src/ev_inotify.c (process_event): Special handling for
	IN_IGNORED.
	(sysev_select): Ignore signo==0.
	* src/hashtab.c (hashtab_remove): Add missing return statement.
	(hashtab_foreach): Break out of look instead of returning from
	it.
	* src/progman.c (run_sentinel): Implement.
	* src/watcher.c (+dirwatcher_install_ptr): New function.
	(dirwatcher_gc): New function.

	Bugfix

	* src/hashtab.c (hashent_list_append): Fix allocated memory size.

	Initial preparation for having distinct handler types.

	* src/direvent.h (pattern_type): New enum, instead of
	PAT_* defines.
	(filename_pattern): use enum pattern_type.
	(handler_type): New enum.
	(handler): Can be of two types: HANDLER_EXTERN, which handles
	external programs and is equivalent to the prior content of
	the structure, and HANDLER_SENTINEL, which is planned to be
	a built-in handler for configuring watchpoints for newly created
	directories. All uses changed.
	(dirwatcher) <refcnt>: Change type to size_t.
	(handler_alloc,handler_add_pattern)
	(handler_add_exact_filename): New protos.
	* src/hashtab.c: Provisions for safe adding and removing
	from the hashtable when iterating over it.
	(hashtab) <flags>: Removed.
	<itr_level, list_new, list_del>: New members.
	(hashtab_remove): When iterating, place pointer to the removed
	entry in list_del instead of actually removing it.
	(hashtab_lookup_or_install): When iterating, add a pointer to
	the newly created entry to the list_new list, instead of adding
	it immediately.
	(hashtab_foreach): Flush list_del and list_new at the end of
	the topmost iteration.

	* src/config.c (handler_alloc): Rename to handler_copy
	(handler_alloc): New function.
	(handler_free): Two types of handlers.
	(handler_add_pattern)
	(handler_add_exact_filename): New functions.
	(file_name_pattern): Takes struct handler * as its
	first argument.
	(cb_file_pattern): Change accordingly.
	* src/fnpat.c (filename_pattern_free): Handle PAT_EXACT.
	(filename_pattern_match): Likewise.
	* src/progman.c (run_handler): Two types of handlers.
	* src/watcher.c (dirwatcher_install): Restore missing gettext
	marker.
	Allocate handler_list.
	(dirwatcher_init): Convert non-directory watchpoints to directory
	ones.

2016-08-20  Sergey Poznyakoff  <gray@gnu.org>

	Fix environment modification code

	Port fixes from rush

2016-08-13  Sergey Poznyakoff  <gray@gnu.org>

	Clean-up handler initialization routines.

	In particular, this change allows for placing several environ statements
	in a single watcher statement.  Such environ statements accumulate.

	* src/config.c (eventconf): Simplify the structure.
	(handler_alloc): Take a pointer to struct handler as
	argument.
	(handler_envrealloc): New function.
	(handler_free): Rename to handler_listent_free. All uses updated.
	(handler_free): New function.
	(eventconf_flush,cb_option,cb_user): Reflect changes to struct
	eventconf
	(cb_environ): Likewise. Reallocate env as necessary.

	* doc/direvent.texi: Document the change.

	* NEWS: Document the changes.

	Limit memory usage.

	Don't create duplicates of handler structs for each pathname
	watched.  Instead keep a count of references to each handler
	and handler list and deallocate them when the count falls to
	zero.

	* src/config.c (direvent_handler_list): New struct.
	(direvent_handler_first,direvent_handler_next)
	(direvent_handler_current)
	(direvent_handler_list_create)
	(direvent_handler_list_copy)
	(direvent_handler_list_unref)
	(direvent_handler_list_append): New functions.
	(eventconf_flush): Create a single copy of watcher.
	* src/direvent.c (main): Call shutdown_watchers before terminating.
	* src/direvent.h (handler) <next>: Remove.
	<refcnt>: New member.
	<prog>: Remove const qualifier.
	(direvent_handler_list_t)
	(direvent_handler_iterator_t): New data types.
	(dirwatcher): Remove handler_tail. Change type of
	handler_list to direvent_handler_list_t.
	(shutdown_watchers)
	(direvent_handler_first,direvent_handler_next)
	(direvent_handler_current)
	(direvent_handler_list_create)
	(direvent_handler_list_copy)
	(direvent_handler_list_unref)
	(direvent_handler_list_append): New protos.
	(for_each_handler): New define.
	* src/watcher.c (dirwatcher_unref): Call direvent_handler_list_unref.
	(all functions): Use handler iterators where necessary
	(shutdown_watchers): New function.
	* src/ev_inotify.c: Use handler iterators.
	* src/ev_kqueue.c: Likewise.

	Fix comments

2016-08-12  Sergey Poznyakoff  <gray@gnu.org.ua>

	Version 5.1.90

	* NEWS: Update.
	* configure.ac: Update.
	* src/watcher.c (setwatcher): Fix conditional.
	* src/direvent.h (dirwatcher_pattern_match): Add missing prototype.

	Don't keep watchpoint descriptor table

	During the lifetime of a watcher, its descriptor can change, so
	it cannot be reliably used to identify the watcher outside of
	the ev_*.c module.  E.g. for kqueue interface, descriptors change
	after compacting the event table, which happens when a watcher is
	closed and removed.

	Finding the watcher for the given event is now the responsibility
	of the event module.

	* src/direvent.h (dirwatcher_ref)
	(dirwatcher_unref): New protos.
	(dirwatcher_lookup_wd): Remove.
	* src/watcher.c (dirwatcher_ref): New function.
	(dirwatcher_register, dirwatcher_lookup_wd)
	(dirwatcher_remove_wd): Remove.  All uses updated.
	(setwatcher): Indicate successful initialization for
	the caller.
	(setup_watchers): Check success flag.
	* src/ev_inotify.c (dwreg, dwunreg)
	(dwget): New functions to keep track of the registered
	watchers and their descriptors.
	(sysev_add_watch): Register watcher.
	(sysev_rm_watch): Deregister it.
	* src/ev_kqueue.c (check_created): Skip directory entries
	that don't match pattern.

2016-08-11  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfixes

	* src/Makefile.am (AM_CPPFLAGS): Define SYSCONFDIR.
	* src/direvent.c (mkfilename): Don't append trailing /
	if filename is empty.
	* src/direvent.h (hashtab_count_entries): Remove.
	* src/ev_inotify.c (process_event): Translate IN_IGNORED to IN_DELETE.
	Remove the watcher only after all handlers have been invoked.
	* src/hashtab.c (hashtab) <elcount>: New member. Keep the number
	of actually used elements.
	(hashtab_remove, hashtab_lookup_or_install)
	(hashtab_create,hashtab_clear): Keep track of the number of
	actually used elements.
	(hashtab_count_entries): Remove duplicate function.
	(hashtab_count): Return elcount without recomputing.
	* src/watcher.c (texttab): Rename to nametab for clarity.
	(dirwatcher_pattern_match): New function.
	(watch_subdirs): Ignore subdirs that don't match file name
	pattern.
	(dirwatcher_destroy): Exit immediately if no more watchers
	are left.

2016-07-06  Sergey Poznyakoff  <gray@gnu.org.ua>

	Version 5.1

2016-07-04  Sergey Poznyakoff  <gray@gnu.org.ua>

	Remove unused variables

	Use latest commit of grecs

	Update copyright years

2016-06-20  Sergey Poznyakoff  <gray@gnu.org>

	Update grecs

	Make sure descriptor 0 is allocated before calling detach.

	* grecs: Upgrade to 9161098.

	Bugfix

	* configure.ac (INCLUDE_PATH_ARGS): Quote definition for shell

	Implement search path for #include and #include_once.

	* src/Makefile.am (AM_CPPFLAGS): Define INCLUDE_PATH_ARGS
	* src/cmdline.opt: New option --include-directory (-I).
	(help_hook): Print the actual content of the include search path.
	* src/config.c (config_finish): Remove.
	(config_init): New function. Set up include search path.
	(config_parse): New function.
	* src/direvent.c (main): Call config_init and config_parse.
	* src/direvent.h (config_finish): Remove.
	(config_init,config_parse): New proto.

	* grecs: Upgrade.

	* NEWS: Document changes.
	* README: Document the --with-include-path option.
	* configure.ac: New option --with-include-path.
	* doc/direvent.8: Document the -I option and include search paths.
	* doc/direvent.conf.5: Document include search paths.
	* doc/direvent.texi: Document the -I option and include search paths.

2016-06-18  Sergey Poznyakoff  <gray@gnu.org>

	New option to invoke handlers via /bin/sh

	* src/config.c (cb_option): New option 'shell'.
	* src/direvent.h (HF_SHELL): New flag.
	* src/progman.c (runcmd): Optionally run program via /bin/sh
	* NEWS: Mention new option.
	* doc/direvent.conf.5: Document the 'shell' option.
	* grecs: Update.
	* tests/shell.at: New test case.
	* tests/Makefile.am: Add new test.
	* tests/testsuite.at: Add new test.

	Globbing patterns in #include and #include_once

	* grecs: Update.
	* src/direvent.c (main): Allocate tag to avoid coredump if
	redefined in the config.
	* tests/re05.at: Escape backslash.
	* NEWS: Update.
	* doc/direvent.conf.5: Update.
	* doc/direvent.texi: Update.

2015-04-23  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix doc generation.

	Default Config file applied to all output formats, which is wrong.
	Use a dedicated configuration file for html output formats, and
	defaults for the rest.

	* doc/Makefile.am (GENDOCS): Add html-specific configuration file.
	* doc/Config: Rename to doc/html.init (with changes).

2015-04-16  Sergey Poznyakoff  <gray@gnu.org.ua>

	Version 5.0.90

2015-03-01  Sergey Poznyakoff  <gray@gnu.org>

	Switch to Texinfo 5.0

	* doc/Config: Rewrite.
	* doc/Makefile.am: Use Makeinfo 5 instead of texi2htm
	* doc/gendocs_template: Ps is not built
	* imprimatur: Upgrade.

2014-09-18  Sergey Poznyakoff  <gray@gnu.org.ua>

	Minor documentation fixes.

	* doc/direvent.8: Escape dashes in examples.
	* doc/direvent.conf.5: Likewise.
	* doc/direvent.texi: Reword copyright statement (part about covers).

2014-09-06  Sergey Poznyakoff  <gray@gnu.org>

	Version 5.0

2014-09-06  Sergey Poznyakoff  <gray@gnu.org.ua>

	Add new test

	* tests/samepath.at: New file.
	* tests/Makefile.am: Add new testcase.
	* tests/testsuite.at: Likewise.

	* NEWS: Update
	* README: Update

2014-09-01  Sergey Poznyakoff  <gray@gnu.org>

	Version 4.1.91

	Improve I18N

	* po/POTFILES.in: Add grecs sources.
	* src/Makefile.am (AM_CPPFLAGS): Add the definition of LOCALEDIR.
	* src/cmdline.opt (help_hook): Add missing gettext markers.
	* src/direvent.c (maint): Initialize libintl

2014-09-01  Sergey Poznyakoff  <gray@gnu.org.ua>

	Improve and document self-test mode

	* src/direvent.c (self_test): Run the program as /bin/sh -c program.
	* doc/direvent.texi: Document self-test mode and missing options.
	* doc/direvent.8: Document self-test.
	* doc/direvent.conf.5: Likewise.
	* src/cmdline.opt: Fix option declarations.

2014-09-01  Sergey Poznyakoff  <gray@gnu.org>

	bootstrap: add option to get update po files and exit

2014-08-31  Sergey Poznyakoff  <gray@gnu.org>

	Accept multpile watchers for the same path

	* src/direvent.h (dirwatcher)<handler_tail>: New member.
	* src/config.c (eventconf_flush): Use handler_tail to update
	the handler list.
	Remove erroneous check.

2014-08-27  Sergey Poznyakoff  <gray@gnu.org>

	Minor changes

	* src/direvent.c (get_user_groups): Fix typo in a diagnostic
	message.

	bootstrap: download po files

2014-08-25  Sergey Poznyakoff  <gray@gnu.org>

	Update NEWS

	Upgrade grecs

	I18N

	* .gitignore: Add am
	* bootstrap: Create am, unless exists.
	* Makefile.am (SUBDIRS): Add po
	* acinclude.m4: New file.
	* configure.ac: Use gettext
	* doc/direvent.texi: Update
	* po/.gitignore: New file
	* po/POTFILES.in: New file.
	* po/Makevars: New file.
	* src/Makefile.am (LDADD): Add @LIBINTL@
	(noinst_HEADERS): Add gettext.h
	* src/config.c: gettextize
	* src/direvent.c: Likewise.
	* src/environ.c: Likewise.
	* src/hashtab.c: Likewise.
	* src/progman.c: Likewise.
	* src/watcher.c: Likewise.
	* src/gettext.h: New file.

	* src/direvent.h: Add missing prototypes.
	* tests/re05.at: Remove superfluous quoting.

2014-08-22  Sergey Poznyakoff  <gray@gnu.org>

	Update docs

2014-08-21  Sergey Poznyakoff  <gray@gnu.org>

	Minor fix in docs

	Direvent is dubbed GNU program

	* configure.ac: Change package name to GNU Direvent
	* doc/direvent.8: Reflect we are GNU
	* doc/direvent.texi: Likewise.
	* src/cmdline.opt: Likewise.

2014-08-17  Sergey Poznyakoff  <gray@gnu.org>

	Rewrite testsuite.

	Get rid of the kludgy waitpid; use the built-in self-test mode instead.

	* src/cmdline.opt: New option --self-test.
	* src/direvent.c (self_test_prog,self_test_pid)
	(exit_code): New globals.
	(self_test): New function.
	(main): Call self_test if required.
	If stop is set, break the loop immediately.
	Return exit_code.
	* src/direvent.h (stop,self_test_pid,exit_code): New externs.
	* src/environ.c (environ_setup): Always define DIREVENT_SELF_TEST_PID
	when in self-test mode.
	* src/progman.c (process_cleanup): Special handling for termination of
	the self-test script.
	(runcmd): Define self_test_pid envvar in self-test mode.
	* tests/Makefile.am: Remove waitpid.
	* tests/waitfile.c: Removed.
	* tests/printname: Send HUP to the self-test PID if sentinel file is created.
	* tests/envdump.c (read_pid_and_sig): Restore arg to its pristine state
	before exiting.
	* tests/testsuite.at (AT_DIREVENT_TEST): New macro.

	* tests/attrib.at: Rewrite using AT_DIREVENT_TEST.
	* tests/cmdexp.at: Likewise.
	* tests/create.at: Likewise.
	* tests/createrec.at: Likewise.
	* tests/delete.at: Likewise.
	* tests/env00.at: Likewise.
	* tests/env01.at: Likewise.
	* tests/env02.at: Likewise.
	* tests/env03.at: Likewise.
	* tests/glob01.at: Likewise.
	* tests/glob02.at: Likewise.
	* tests/re01.at: Likewise.
	* tests/re02.at: Likewise.
	* tests/re03.at: Likewise.
	* tests/re04.at: Likewise.
	* tests/re05.at: Likewise.
	* tests/write.at: Likewise.
	*   grecs (untracked content)

	Rename project to direvent.

2014-08-10  Sergey Poznyakoff  <gray@gnu.org>

	Version 4.1.90

	* NEWS: Change version number
	* configure.ac: Likewise.
	* doc/dircond.conf.5: Update copyright years.
	* doc/dircond.texi: Update copyright years.
	* src/config.c: Update copyright years.
	* src/dircond.h: Update copyright years.
	* src/fnpat.c: Update copyright years.
	* tests/envdump.c: Update copyright years.

2014-07-29  Sergey Poznyakoff  <gray@gnu.org>

	Introduce pattern negation.

	* doc/dircond.conf.5: Document negated patterns.
	* doc/dircond.texi: Likewise.
	* src/config.c (file_name_pattern): A ! in front of a pattern
	indicates negation.
	* src/dircond.h (filename_pattern)<neg>: New member.
	* src/fnpat.c: Honor neg member.
	* tests/envdump.c (main): don't depend on the order of command
	line options.
	* tests/glob02.at: New test case.
	* tests/re05.at: Likewise.
	* tests/Makefile.am: Add new files.
	* tests/testsuite.at: Include new testcases.

2013-12-27  Sergey Poznyakoff  <gray@gnu.org.ua>

	Remove trailing tabs in doc/dircond.8

	Update gendocs_template

	Update dircond.conf.5

	Version 4.1

	* NEWS: Document new release.

	* Makefile.am
	* configure.ac: Enable silent rules. Set version number 4.1
	* doc/Makefile.am: Add copyleft header.
	* src/Makefile.am: Likewise.
	* tests/Makefile.am: Add missing silent rule markers.

	Fix documentation of the "file" statement.

	Implement filename selection

	* NEWS: Update.
	* doc/dircond.texi: Document the file statement.
	* src/fnpat.c: New file.
	* src/Makefile.am (dircond_SOURCES): Add fnpat.c
	* src/config.c (eventconf) <fnames>: New member.
	(eventconf_free): Free fnames.
	(eventconf_flush): Set fnames.
	(watcher_kw) <file>: New statement.
	* src/dircond.h (filename_pattern): New struct.
	(handler) <fnames>: New member.
	(handler_matches_event): New macro.
	(filename_pattern_free)
	(filename_pattern_match): New proto.
	* src/ev_inotify.c (process_event): Use handler_matches_event.
	* src/ev_kqueue.c: Likewise.
	* src/watcher.c (deliver_ev_create): Likewise.

	* tests/Makefile.am: Add new tests.
	* tests/testsuite.at: Likewise.
	* tests/create.at: Add a distinctive keyword.
	* tests/glob01.at: New testcase.
	* tests/re01.at: New testcase.
	* tests/re02.at: Likewise.
	* tests/re03.at: Likewise.
	* tests/re04.at: Likewise.

2013-12-17  Sergey Poznyakoff  <gray@gnu.org>

	Upgrade grecs

2013-10-02  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix the testsuite, bump version number

	* configure.ac: Update version number.
	* NEWS: Update version number.
	* tests/Makefile.am: Distribute printname.
	* tests/printname: New file.
	* tests/atlocal.in (SRCDIR): New variable.
	* tests/createrec.at: Fix path to printname.

2013-09-29  Sergey Poznyakoff  <gray@gnu.org.ua>

	Generate genev_create event for subdirectories.

	A genev_create event is generated for all files and directories below the
	newly created one, if required by the configuration.  At the same time, new
	watchers are installed.  This is illustrated by the testcase "createrec.at",
	which version 4.0 wouldn't pass, because it incorrectly assumed that a
	notification would arrive for each subdirectory or subfile, once the watcher
	is installed for the parent directory.

	* src/watcher.c (subwatcher_create): Return integer.
	Take additional argument (notify).  If it is true, register
	watchers for the subdirectories.
	(deliver_ev_create): New function.
	(watch_subdirs): Return number of watchers installed or -1
	on error.
	(watch_pathname): Remove. All callers use subwatcher_create
	instead.
	* tests/Makefile.am: Add new test.
	* tests/testsuite.at: Likewise.
	* tests/attrib.at: Use pwd -P, instead of plain pwd.
	* tests/cmdexp.at: Likewise.
	* tests/create.at: Likewise.
	* tests/delete.at: Likewise.
	* tests/env00.at: Likewise.
	* tests/env01.at: Likewise.
	* tests/env02.at: Likewise.
	* tests/env03.at: Likewise.
	* tests/write.at: Likewise.

2013-09-15  Sergey Poznyakoff  <gray@gnu.org.ua>

	Minor fixes in the docs.

2013-06-05  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix typos in manpages

	Update scripts for generating documentation output.

2013-06-04  Sergey Poznyakoff  <gray@gnu.org.ua>

	Update dircond manpage

	Finish the docs. Set version number 4.0. Change bug-report address.

	Update docs.

	* NEWS: Update.
	* doc/dircond.conf.5: Update.
	* doc/dircond.texi: Update.
	* src/config.c (cb_watcher): Treat missing "event"
	statement as "all events".
	* src/dircond.h (evtsetall): New prototype.
	* src/event.c (evtsetall): New function.
	* src/environ.c: Minor fix.

	inotify: fix definition of the generic write event

	* src/ev_inotify.c (genev_xlat): Translate IN_MODIFY|IN_CLOSE_WRITE
	to GENEV_WRITE.

	Update docs

2013-06-03  Sergey Poznyakoff  <gray@gnu.org.ua>

	Reorganize namespace.

	Revamp initialization system in a cleaner way.

	* src/Makefile.am: Use the proper detach-*.c source depending
	on the configuration output.
	* src/rdaemon.c: Remove.
	* src/detach-std.c: New file.
	* src/detach-bsd.c: New file.
	* src/detach-darwin.c: New file.
	* src/dircond.c (signal_setup): Use sigv_set_all.
	(sigmain): Do not reinstall the handler.
	(main): Use detach() instead of daemon().
	* src/dircond.h (detach): New proto.
	(NITEMS): New macro.
	(sigv_set_action, sigv_set_all)
	(sigv_set_tab, sigv_set_action_tab): New protos.
	* src/sigv.c: New file.
	* tests/waitfile.c: Remove unused variable.
	* doc/dircond.8: Update.
	* doc/dircond.texi: Update.

	Improve docs

2013-06-02  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix a copy-paste error.

	Write the docs in manpage format:

	* doc/.gitignore
	* doc/Makefile.am: Add rules for texinfo documents.
	* doc/dircond.1: Removed.
	* doc/dircond.8: New file.
	* doc/dircond.conf.5: New file.
	* doc/dircond.texi: New file (a placeholder).
	* doc/fdl.texi: New file.
	* doc/gendocs_template: New file.

	Rename event variables and the corresponding environment
	ones:

	* src/environ.c
	* src/dircond.c
	* src/progman.c
	* tests/.gitignore
	* tests/attrib.at
	* tests/cmdexp.at
	* tests/create.at
	* tests/delete.at
	* tests/env00.at
	* tests/env01.at
	* tests/env03.at
	* tests/remove.at
	* tests/write.at

2013-06-01  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfix

	* src/dircond.c (vdiag): Fix memory allocation

	Uograde grecs

	Upgrade grecs

	Initial support for Darwin.

	Basically the same as BSD, except that it lacks rfork, which
	makes it impossible to initialize watchers before daemonizing.

	* configure.ac: Check for rfork, define the DIRCOND_FORK conditional
	if present.
	* src/Makefile.am [DIRCOND_KQUEUE][DIRCOND_RFORK]: Add rdaemon.c
	to the sources.
	* src/dircond.c: Define INIT_EARLY if it is safe to initialize
	the event system before forking.  Currently the only supported
	system that's not capable of that is Darwin.
	(main): Call setup_watchers conditionally, before or after the
	call to daemon.
	Move call to evsys_init to setup_watchers.
	Reorganize the main loop.
	* src/dircond.h (event_mask_init): Change signature. The third
	argument specifies which mask bits we're interested in.
	All uses changed.
	* src/event.c: Ditto.
	* src/watcher.c (setup_watchers): Call evsys_init.

	Test environment modifications.

	* src/config.c (cb_environ): Accept list argument.
	* tests/Makefile.am: Add new tests.
	* tests/testsuite.at: Add new tests.
	* tests/env00.at: New file.
	* tests/env01.at: New file.
	* tests/env02.at: New file.
	* tests/env03.at: New file.

	Test command line expansions.

	* envdump.c: Accept unrecognized command line parameters.
	Use -f option to redirect output to a file. All uses updated.
	* cmdexp.at: New file.
	* Makefile.am: Add cmdexp.at
	* testsuite.at: Include cmdexp.at

	Fix CREATE detection with kqueue.

	* src/ev_kqueue.c (check_created): Fall back to hash lookup
	to see if the file is recently created.
	* tests/create.at: Remove the sleep. Wait for the pidfile to
	appear before proceding with the test.
	* tests/delete.at: Wait for the pidfile to appear before
	proceding with the test.
	* tests/remove.at: Likewise.
	* tests/write.at: Likewise.

	Minor fixes.

	Minor fixes

	Fix daemon mode on BSD. Provide a testsuite.

	* configure.ac: Initialize the testsuite.
	* src/Makefile.am [DIRCOND_KQUEUE] (dircond_SOURCES): Add rdaemon.c
	* src/rdaemon.c: New file.
	* src/cmdline.opt: New option -l.
	* src/config.c (get_priority): New function.
	* src/dircond.c (log_to_stderr): New variable.
	(vdiag): Optionally output the message both to
	stderr and syslog.
	(stop): New global.
	(sigmain): Set stop.
	(main): Initialize logging early.
	Loop until stop is set.
	Remove pidfile before returning.
	* src/dircond.h (read_facility): Remove.
	(get_facility,get_priority): New protos.
	* src/ev_kqueue.c (evsys_select): Fix error handling.
	* tests/.gitignore: New file.
	* tests/Makefile.am: Provide autotest framework.
	* tests/atlocal.in: New file.
	* tests/attrib.at: New file.
	* tests/create.at: New file.
	* tests/delete.at: New file.
	* tests/remove.at: New file.
	* tests/testsuite.at: New file.
	* tests/envdump.c: Add more features.
	* tests/waitfile.c: New file.

	Add tests directory.

	* Makefile.am (SUBDIRS): Add tests
	* configure.ac: Build tests/Makefile.
	* tests/.gitignore: New file
	* tests/Makefile.am: New file.
	* tests/envdump.c: New file.

	Minor fixes

	* src/cmdline.opt (help_hook): Change wording.
	* src/config.c (config_help): Fix a typo.
	* src/dircond.c (signal_setup): Include SIGCHLD
	(main): Reset grecs_log_to_stderr.
	* src/progman.c (run_handler): SIGCHLD is handled
	by signal_setup.

	Improve command line handling.

	* configure.ac (GRECS_SETUP): Request getopt.
	* src/.gitignore: Add cmdline.h
	* src/cmdline.opt: New file.
	* src/Makefile.am: Add new rules.
	* src/config.c: New statement "user".
	* src/dircond.c: Change command line handling.

	Control execution environment and handler arguments.

	* src/environ.c: New file.
	* src/Makefile.am: Add environ.c
	* src/config.c: Rename "event" compound statement to "watcher".
	New statement "environ".
	* src/dircond.h (handler) <env>: New member.
	(environ_setup): New proto.
	* src/progman.c (event_to_env): Remove function.
	(runcmd): New function.
	(run_handler): Call runcmd to prepare execution environment and
	launch the handler.

	Minor improvements

	* /src/dircond.c (vdiag): Implement print-priority.
	(main): Print version number along with the startup
	and shutdown messages.

	Upgrade grecs

	Add bootstrap

	Rewrite configuration support using grecs.

	* grecs: Incorporate grecs as a submodule
	* .gitmodules: New file.
	* src/config.c: Rewrite.
	* src/dircond.c: Use grecs.
	* src/dircond.h (opt_facility): Remove
	(syslog_include_prio): New global.
	(pathent) <next>: Remove.
	* pathdefn.c: Remove.

	Switch to deep structure.

	Change version number. Update THANKS file.  Improve -h output.

	Make sure directory and filename parts are meaningful when calling the handler.

	* dircond.h (dirwatcher) <split_p>: New member.
	<file_mode>: Change type to mode_t.
	(run_handler): Change signature.
	(split_pathname,unsplit_pathname): New protos.
	* ev_inotify.c (process_event): Use split_pathname
	to obtain file and directory parts if the watched
	object is not a directory.
	* ev_kqueue.c (filename): Remove function.
	(check_created): Change call to run_handler.
	(process_event): Use split_pathname
	to obtain file and directory parts.
	* progman.c (run_handler): Change signature and
	calling convention.
	* watcher.c (watch_subdirs): Fix diagnostics message.
	(split_pathname,unsplit_pathname): New functions.

	One more fix.

	* dircond.c (trans_strtotok): 2nd arg is const
	* dircond.h: Ditto.

	Add missing include.

	Keep separate process entries for redirectors.

	* dircond.h: Remove unneeded prototypes.
	* progman.c (process) <type,v>: New members.
	(register_process): Take process type as the first argument.
	(process_cleanup): Update.
	(open_redirector): Change type of the last argument.
	(run_handler): Reflect changes in open_redirector.

	Move process management functions into a separate module.

	Minor fixes.

	Introduce system-independent event codes.

	* config.c (parse_event, parse_onevent): Use event_mask structure.
	* dircond.c (trans_strtotok, trans_toktostr)
	(trans_toknext,trans_tokfirst)
	(ev_log): New functions
	(event_to_env): New static.
	(run_handler): Take a pointer to event_mask.
	Use event_to_env to construct the environment.
	(man): Initialize system-independent events.
	* dircond.h (SIE_CREATE, SIE_WRITE)
	(SIE_ATTRIB, SIE_DELETE): System-independent event codes.
	(event_mask): New typedef.
	(event): Remove structure.
	(transtab): New structure.
	(handler) <ev_mask>: Change type to event_mask.
	(evsys_filemask): New proto.
	(evsys_add_watch,run_handler): Change signature.
	(defevt, getevt): Likewise,
	(evtnullp, event_mask_init): New protos.
	(sie_xlat, sie_trans, evsys_transtab): New externs.
	(trans_strtotok, trans_toktostr)
	(trans_tokfirst, trans_toknext): New protos.
	* ev_inotify.c (evsys_transtab): New global.
	(sie_xlat): New global.
	(ev_log): Remove.
	(evsys_filemask): Remove variable, add function.
	(evsys_add_watch): Change signature.
	* ev_kqueue.c (events): Remove.
	(evsys_transtab): New global.
	(evsys_name_to_code, evsys_code_to_name): Remove.
	(evsys_filemask): Remove variable, add function.
	(ev_log): Remove.
	(sie_xlat): New global.
	(evsys_add_watch): Change signature.
	Add NOTE_WRITE to directory flags if SIE_CREATE is requested.
	(check_created): Deliver the SIE_CREATE event.
	(process_event): Update.
	* event.c (symevt) <mask>: Change type to event_mask.
	(defevt,getevt): Rewrite taking event_mask as additional
	argument.
	(evtnullp): New function
	(sie_trans): New global.
	(event_mask_init): New function.
	* watcher.c (dirwatcher_init): Initialize both system-dependent
	and system-independent event masks.
	(watch_subdirs): Call evsys_filemask to decide which files to
	watch.

	Use fd_set capable of keeping sysconf(_SC_OPEN_MAX) descriptors.

	* dircond.c (bigfd_set): New type
	(BIGFD_SET_COUNT, BIGFD_SET_ALLOC)
	(BIGFD_SET, BIGFD_ISSET): New macros.
	(close_fds): Use bigfd_set. All callers updated.

	Bugfix

	* dircond.h (dirwatcher_lookup): New proto.
	* watcher.c (dirwatcher_lookup): Remove static qualifier.

	kqueue: handle file creates and deletes.

	* dircond.h (dirwatcher) [USE_IFACE == IFACE_KQUEUE] <file_mode>
	<file_ctime>: New members.
	(remove_watcher): Remove prototype.
	(dirwatcher_destroy,watch_pathname): New protos.
	* ev_inotify.c (remove_watcher): New function (from watcher.c)
	* ev_kqueue.c (evsys_add_watch): Use EV_CLEAR instead of EV_ONESHOT.
	Initialize file_mode and file_ctime.
	(evsys_rm_watch): Fix conditional.
	(check_created): New function.
	(process_event): Handle file additions and deletions.
	* watcher.c (watch_subdirs): Use watch_pathname.
	(watch_pathname): New function.

	Restore default timeout.

	The default timeout setting was inadvertently lost in 02f27691.

	* config.c (opt_timeout): Initialize.
	* dircond.h (DEFAILT_TIMEOUT): New constant.

	Bugfix.

	* ev_kqueue.c (process_event): Strip directory prefix off the
	file name.

	Move commonly used headers to dircond.h

	Change main loop.

	* dircond.c: Change main loop.
	* dircond.h (evsys_loop): Remove.
	(evsys_select): New proto.
	* ev_inotify.c: Likewise.
	* ev_kqueue.c: Likewise.

	Initial implementation of kqueue support.

	* ev_inotify.c: New file.
	* ev_kqueue.c: New file.
	* configure.ac: Set up automake conditionals and defines
	depending on the selected interface. Bail out if no suitable
	interface is found.
	* Makefile.am: Add the right ev_*.c source to dircond_SOURCES.
	* dircond.c (run_handler): Remove static qualifier.
	(process_event): Remove.
	(main): Use evsys_* calls for interface-dependent operations.
	* dircond.h (event): New struct.
	(ifd): Remove extern.
	(signo): New extern.
	(ev_name_to_code): Rename to evsys_name_to_code.
	(ev_code_to_name): Rename to evsys_code_to_name.
	(ev_log): Remove.
	(evsys_init,evsys_add_watch)
	(evsys_rm_watch,evsys_loop): New protos.
	(evsys_filemask): New extern.
	* event.c: Remove interface-dependent stuff.
	* watcher.c (dirwatcher_install): Initialize wd to -1.
	(watch_subdirs): Use evsys_filemask to decide whether to scan the
	directory.
	All functions: Use evsys_* calls for interface-dependent operations.

	Autoconfiscate

	* .gitignore: Update
	* AUTHORS: New file.
	* Makefile.am: New file.
	* THANKS: New file.
	* configure.ac: New file.
	* Makefile: Remove.
	* NEWS: Update.
	* dircond.c: Include config.h
	* event.c: Likewise.
	* hashtab.c: Likewise.
	* pathdefn.c: Likewise.
	* watcher.c: Likewise.

	Update NEWS

2013-05-30  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix a typo

2013-05-29  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfix

	* watcher.c (watch_subdirs): Fix erroneous conversion specifier
	in the diagnostics message.

2013-05-28  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfix.

	* config.c (parse_option): Fix the sense of the nowait option.

	Fix help output.

2013-05-27  Sergey Poznyakoff  <gray@gnu.org.ua>

	Restore default timeout.

	The default timeout setting was inadvertently lost in 02f27691.

	* config.c (opt_timeout): Initialize.
	* dircond.h (DEFAILT_TIMEOUT): New constant.

	Bugfix.

	* pathdefn.c (pathdefn_get): Fix return value.

2013-05-26  Sergey Poznyakoff  <gray@gnu.org.ua>

	Lint mode

	* dircond.c (main): Use the -L option to introduce syslog tag
	and the -t option to request "lint" behavior.
	* dircond.1: Update.

2013-03-22  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfix

	* dircond.c (setuser): Set up supplementary groups of the user.

2013-03-08  Sergey Poznyakoff  <gray@gnu.org.ua>

	New feature: run handler as a specified user.

	* config.c (parse_onevent): Change "call" to "run".  Retain
	the latter for compatibility.
	Hanlde optional "as USER" clause.
	Bugfix: initialize hp->next.
	* dircond.1: Document changes.
	* dircond.c (run_handler): Switch to the requested user
	privileges before running the handler.
	* dircond.h (handler) <uid,gidv,gidc>: New members.

2013-03-07  Sergey Poznyakoff  <gray@gnu.org.ua>

	Fix syslog vs. stderr inconsistency.

	* config.c (opt_facility): new global.
	(parse_syslog): Set opt_facility, unless
	it is already set (in the command line).
	* dircond.c (main) <opt_facility>: Remove (now global).
	* dircond.h (opt_facility): New extern.

	* Makefile (clean): add dircond

2013-03-06  Sergey Poznyakoff  <gray@gnu.org.ua>

	More fixes.

	* dircond.c (print_status): Take sigset_t* as the
	second argument.  Mask out diagnostic messages
	according to it.
	(process_cleanup): Mask out SIGTERM and SIGKILL
	as needed.
	(run_handler): Swap redirectors syslog priorities:
	stderr goes to LOG_ERR, and stdout to LOG_INFO.

	Bugfixes.

	* config.c (read_facility): Fix return value.
	* dircond.c: Fix help output.
	* dircond.1: Fix incorrect example.

2013-02-14  Sergey Poznyakoff  <gray@gnu.org.ua>

	Update docs.

	New option -V

	* Makefile (CPPFLAGS): Define VERSION
	* dircond.c: New option -V (print version).
	* dircond.1: Document new option.

	Bugfixes.

	* Makefile (DISTFILES): Bugfix.
	* config.c (parse_event): Bugfix.
	* NEWS: Update (version 3.0, preliminary)

2013-01-29  Sergey Poznyakoff  <gray@gnu.org.ua>

	Bugfixes.

	* config.c (nextln): Fix out of range read.
	* dircond.1: Update.
	* event.c (ev_code_to_name): Find first matching event.
	Do not rely on exact match, because the even mask may
	have several bits set.

	Improve error handling.

	* config.c (parse_path): Bail out if incorrect option
	is given.
	* dircond.h (hashtab_count): New proto.
	* hashtab.c (hashtab_count): New function.
	* watcher.c (setup_watchers): Bail out if no handlers configured
	or if unable to install any.

	Improve configuration syntax, document the changes.

	* config.c (path statement): New keyword "recursive".
	* dircond.c (process_event): Provide a detailed
	event logging.
	* event.c (ev_log): New function.

	* dircond.1: Document all changes.

	* dircond.h: Add file.

	Major revamp

	All configuration moved to configuration file (default: /etc/dircond.conf).
	Only a few command line options have been retained.

	Watcher structures are kept in hash tables, which allows for faster
	lookups, especially if there are many watchers.

	* Makefile: Add new source.
	* config.c: New file.
	* dircond.c (conffile): New global.
	(facility): Default to stderr. Will be changed by main if
	going daemon.
	(handler_timeout, autowatch): Remove.
	Move datatype definitions and macros to dircond.h
	(ev_name_to_code, ev_code_to_name): Move to event.c
	(erealloc, estrdup): New functions.
	(proc_unlink, proc_pop, proc_push): Define explicitly, now
	that dlist.c is gone.
	(read_facility): Move to config.c, changing signature.
	(set_handler): Remove.
	(dirwatcher_free, dirwatcher_create)
	(dirwatcher_destroy, dirwatcher_find_wd)
	(dirwatcher_find_name): Remove. See watcher.c
	(remove_watcher, subwatcher_create)
	(check_new_watcher, watch_subdirs): Move to watcher.c
	(get_facility): New function.
	(process_event): New function.
	(main): Parse configuration file. Use command line options
	to override its settings.
	* dlist.c: Remove.
	* event.c: New file.
	* hashtab.c: New file.
	* pathdefn.c: New file.
	* watcher.c: New file.

2013-01-17  Sergey Poznyakoff  <gray@gnu.org.ua>

	Revamp the event and handler system.

	Events are directly mapped to those of inotify. Handlers are kept in a
	doubly-linked list; a special field keeps the mask of supported events.
	The accepted '-p' syntax is changed accordingly. Docs are not yet
	updated.

	* dircond.c (event): New struct.
	(evtab): New global.
	(handler) <prev,next,ev_mask>: New members.
	(dirwatcher) <handler_list>: New member (instead of the
	handler array).
	(handler_list,handler_mask): New globals.
	(ev_name_to_code,ev_code_to_name): New functions.
	(set_handler): Change accepted syntax. The new syntax is

	event[,event...][:flag[,flag...]]:pathname

	(dirwatcher_create): Use handler_mask instead of the hardcoded
	mask.
	(dirwatcher_destroy): Free the handler list, if this is a top-level
	watcher.
	(subwatcher_create): Update to use new variables.
	(main): Likewise.

2013-01-10  Sergey Poznyakoff  <gray@gnu.org.ua>

	Improve error reporting.

	* dircond.c (run_handler,set_handler): Check if the handler can
	be executed.

	Update documentation

	Watch existing subdirectories, as requested by the autowatch option.

	* dircond.c (subwatcher_create): New function.
	(check_new_watcher): Use subwatcher_create.
	(watch_subdirs): New function.
	(main): Recursively add directories after watchpoint if autowatch
	requests so.

	Make autowatch feature watchpoint-specific.

	Each particular watchpount can have its own setting of autowatch, as
	specified by the -a option.

	* dircond.c (dirwatcher) <autowatch>: New member.
	(dirwatcher_create): Fill allocated structure with zeroes.
	(dirlevel): Remove function.
	(check_new_watcher): Use dirwatcher->autowatch to determine
	whether to watch the new directory.  Inherit autowatch setting.
	(main): Set dirwatcher->autowatch.

	New flag "timeout="

	* dircond.c (set_handler): The timeout=N flag sets timeout
	for that particular handler (equivalent to -T option used
	before -p).
	* dircond.1: Document the new flag.

2013-01-09  Sergey Poznyakoff  <gray@gnu.org.ua>

	Add documentation files. Raise version to 2.0

	* .gitignore: Update.
	* Makefile: Add NEWS and ChangeLog, generate the latter.
	* NEWS: New file.
	* git2chg.awk: New file.

	Fix help output.

	Support multiple per-directory handlers.

	* dircond.c (handler) <timeout>: New member.
	(dirwatcher) <handler>: New member.
	(process) <master>: Remove.
	<timeout>: New member.
	Fix comments.
	(set_handler): Change supported syntax. The program name
	is separated from the event spec and optional flags by
	a semicolon. It can be empty, allowing to cancel a prior
	definition of the same handler.
	(register_process): Take timeout as the third argument.
	(process_timeouts): Use per-process timeout.
	(open_redirector): Fix the use of facility.
	(run_handler): Change signature.
	(main): Change option handling, allowing to intermix
	handler and watchpoint definitions.
	* README: Update.
	* dircond.1: Update.
	* dlist.c: Add copyright header.

	Fix a "fencepost" error in close_fds.

	* dircond.c (close_fds): Start iterating from max_fd-1.

2012-12-31  Sergey Poznyakoff  <gray@gnu.org.ua>

	Minor fixes.

	* COPYING: New file.
	* Makefile: Distribute COPYING.
	* dircond.c (main): tag is now const char *.

	Switch to user privileges only if -u option is explicitly given.

	Improve documentation.

2012-12-24  Sergey Poznyakoff  <gray@gnu.org.ua>

	Add a manpage.

	* Makefile: Add a manpage.
	* dircond.c (run_handler): Pass event code and
	event symbolic name to the handler.

	Add support for IN_MOVED_FROM and IN_MOVED_TO.

	Initial commit

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