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//usr/share/doc/libpipeline/ChangeLog

2020-08-13  Colin Watson  <cjwatson@debian.org>

Version: 1.5.3

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to 6:3:5.

2020-08-03  Colin Watson  <cjwatson@debian.org>

Port tests to the modern Check API

Fixes Savannah bug #58883.

* configure.ac: Test for check >= 0.9.10.
	* tests/argstr.c, tests/basic.c, tests/exec.c, tests/inspect.c,
	tests/pump.c, tests/read.c, tests/redirect.c: Replace uses of
	fail_unless and fail_if with appropriate ck_assert_* calls.  In most
	cases these now use more specific equality etc. tests rather than just
	passing arbitrary predicates.
	* README: Document updated dependency.
	* NEWS: Document this.

2020-07-05  Colin Watson  <cjwatson@debian.org>

Fix handling of read/write errors

safe_read and safe_write return size_t and define SAFE_READ_ERROR and
	SAFE_WRITE_ERROR as error return values.  We had previously been
	assigning their result to a signed value.  As a result, whether
	passthrough, pipeline_pump, and get_block would detect read/write errors
	was implementation-defined.

* lib/pipeline.c (passthrough, get_block): Assign safe_read return value
	to a size_t rather than a signed integer type, and check for
	SAFE_READ_ERROR rather than negative values.
	(pipeline_pump): Assign safe_write return value to a size_t rather than
	an ssize_t, and check for SAFE_WRITE_ERROR rather than negative values.
	* NEWS: Document this.

2020-01-01  Colin Watson  <cjwatson@debian.org>

Version: 1.5.2

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to 6:2:5.
	* README: Update copyright dates.

2020-01-01  Colin Watson  <cjwatson@debian.org>

* NEWS: Document pipeline_start doc change

2020-01-01  Colin Watson  <cjwatson@debian.org>

pipecmd_exec: Flush stdio in PIPECMD_FUNCTION case

This fixes a regression in eceb4fc9c1a800739f3876a5c9538376adc77876
	where we could lose some output from functions that write to standard
	output but don't explicitly flush.

* lib/pipeline.c (pipecmd_exec): Flush output streams before exiting in
	the PIPECMD_FUNCTION case.

2020-01-01  Colin Watson  <cjwatson@debian.org>

pipeline_start: Document that standard FDs must be open

Fixes Ubuntu bug #992271.

* lib/pipeline.h (pipeline_start): Document that FDs 0, 1, and 2 must be
	open before calling this function.
	* man/libpipeline.3 (pipeline_start): Likewise.

2019-12-27  Colin Watson  <cjwatson@debian.org>

Use _exit rather than exit in pipecmd_exec

This avoids bugs such as functions registered using atexit being called
	multiple times.

* lib/pipeline.c (pipecmd_exec): Call _exit rather than exit.
	* NEWS: Document this.

2019-08-31  Colin Watson  <cjwatson@debian.org>

Enable many more GCC warnings

* bootstrap.conf (gnulib_modules): Add manywarnings.<Paste>
	* configure.ac: Add gl_MANYWARN_ALL_GCC, with some refinements to disable
	-Wsystem-headers, -Wmissing-field-initializers, and -Winline.

2019-08-31  Colin Watson  <cjwatson@debian.org>

Add several function attributes suggested by GCC

* lib/debug.c (vdebug): Mark first argument as a printf format string.
	* lib/pipeline.c (pipecmd_get_nargs, pipeline_get_ncommands,
	pipeline_get_command, pipeline_get_pid, pipeline_peek_size): Mark as
	pure.

2019-08-31  Colin Watson  <cjwatson@debian.org>

Make several functions static

* tests/argstr.c (argstr_suite): Make static.
	* tests/basic.c (basic_suite): Likewise.
	* tests/exec.c (exec_suite): Likewise.
	* tests/inspect.c (inspect_suite): Likewise.
	* tests/pump.c (pump_suite): Likewise.
	* tests/read.c (read_suite): Likewise.
	* tests/redirect.c (redirect_suite): Likewise.

2019-08-31  Colin Watson  <cjwatson@debian.org>

Simplify some GCC attribute handling

We have to be a little careful, as we can't use Gnulib in the public
	<pipeline.h> header; but we can rely on it for internal compilation
	units.

* lib/pipeline.c (passthrough): Use _GL_UNUSED rather than
	PIPELINE_ATTR_UNUSED.
	* tests/basic.c (pre_exec): Likewise.
	* tests/common.h (MAIN): Likewise.
	* tests/inspect.c (pid_helper): Likewise.
	* tests/pump.c (tee_source): Likewise.
	* lib/pipeline.h (PIPELINE_ATTR_UNUSED): Note that this is unused, but
	preserved to avoid breaking (even undocumented) API.

2019-01-30  Colin Watson  <cjwatson@debian.org>

Use HTTPS URL

* README, lib/libpipeline.pc.in (URL): Update homepage URL to
	https://nongnu.org/libpipeline/.

2019-01-27  Colin Watson  <cjwatson@debian.org>

Version: 1.5.1

* NEWS: Note Gnulib portability improvements.

2019-01-27  Colin Watson  <cjwatson@debian.org>

Update to Gnulib 20190124

* bootstrap.conf (GNULIB_REVISION): Set to
	34881aff4043847f2640d90cf9aa325cc3ad08d6.

2019-01-05  Colin Watson  <cjwatson@debian.org>

Note requirement of Automake 1.11.2

AM_PROG_AR was actually introduced in 1.11.2, not 1.11.

* bootstrap.conf (buildreq): Bump required automake version to 1.11.2.
	* NEWS: Clarify.

2019-01-05  Colin Watson  <cjwatson@debian.org>

Upgrade to Gnulib 20190105

In line with Gnulib, we now require Autoconf 2.63 and Automake 1.11.

* bootstrap: Sync to Gnulib d271f868a8df9bbec29049d01e056481b7a1a263.
	* bootstrap.conf (GNULIB_REVISION): Set to
	d271f868a8df9bbec29049d01e056481b7a1a263.
	(buildreq): Bump required autoconf version to 2.63.
	* configure.ac (AM_INIT_AUTOMAKE): Bump to 1.11.
	(AM_SILENT_RULES, AM_PROG_AR): Remove conditionals, which were there for
	Automake 1.10 support.
	(AC_PREREQ): Bump to 2.63.
	* NEWS: Document this.

2019-01-05  Colin Watson  <cjwatson@debian.org>

Use tar --sort=name if available

* m4/pipeline-tar-sort-name.m4: New file.
	* configure.ac: Call PIPELINE_TAR_SORT_NAME.

2018-12-24  Colin Watson  <cjwatson@debian.org>

More (void *) 0 as variadic sentinel

* tests/basic.c (test_basic_status, test_basic_args,
	test_basic_pipeline, test_basic_wait_all, test_basic_setenv,
	test_basic_unsetenv, test_basic_clearenv, test_basic_chdir,
	test_basic_fchdir, test_basic_pre_exec, test_basic_sequence): Use
	(void *) rather than NULL as a sentinel for variadic functions.
	* tests/common.c (temp_dir_teardown): Likewise.
	* tests/exec.c (test_exec_process): Likewise.
	* tests/inspect.c (test_inspect_command, test_inspect_pipeline):
	Likewise.
	* tests/pump.c (fail_unless_files_equal,
	test_pump_connect_attaches_correctly, test_pump_tee): Likewise.
	* tests/redirect.c (test_redirect_files, test_redirect_outfile):
	Likewise.

2018-12-24  Colin Watson  <cjwatson@debian.org>

Use (void *) 0 as a variadic sentinel

NULL is formally incorrect here since the standard allows it to be an
	integer constant expression.

* lib/pipeline.c (argstr_get_word, pipecmd_tostring, pipeline_tostring):
	Use (void *) rather than NULL as a sentinel for variadic functions.

2018-05-29  Colin Watson  <cjwatson@debian.org>

Avoid gl directory confusion

* bootstrap.conf (local_gl_dir): Set to 'gnulib-local'.

2018-05-28  Colin Watson  <cjwatson@debian.org>

Prefer the Gnulib versions of some more files

* bootstrap.conf (gnulib_extra_files): Remove.  (This has the effect of
	reverting to bootstrap's default of also copying some files in
	build-aux/ from Gnulib.)

2018-05-28  Colin Watson  <cjwatson@debian.org>

Clean up bootstrap configuration slightly

* bootstrap.conf (gnulib_name, source_base, m4_base): Set these instead
	of the corresponding options in gnulib_tool_option_extras.

2018-05-28  Colin Watson  <cjwatson@debian.org>

Upgrade to Gnulib 20180527

* bootstrap.conf (GNULIB_URL): Remove.
	(GNULIB_REVISION): Set to 90f289f249a266b1afb9c63e182f5d979d17df5f.
	* configure.ac (AM_PROG_AR, LT_INIT): Move below gl_EARLY.

2018-05-28  Colin Watson  <cjwatson@debian.org>

Switch to bootstrap

We no longer keep autogenerated files in git.

* .gitignore: Add **/Makefile.in, /INSTALL, /aclocal.m4, /build-aux,
	/config.h.in, /configure, /gl, and /gnulib.  Remove gnulib/*.
	* INSTALL, Makefile.in, aclocal.m4, autogen.sh, build-aux, config.h.in,
	configure, gnulib, lib/Makefile.in, man/Makefile.in, tests/Makefile.in:
	Remove.
	* bootstrap, bootstrap.conf: New files.
	* Makefile.am (SUBDIRS, EXTRA_DIST, ACLOCAL_AMFLAGS): Refer to gl/
	rather than gnulib/ (gnulib/ now contains pristine source).
	(EXTRA_DIST): Replace autogen.sh with bootstrap and bootstrap.conf.
	Remove gnulib/m4/gnulib-cache.m4 and gnulib/m4/gnulib-tool.m4.
	* configure.ac (AC_CONFIG_FILES): Refer to gl/ rather than gnulib/.
	* lib/Makefile.am (libpipeline_la_CPPFLAGS, libpipeline_la_LIBADD):
	Likewise.
	* tests/Makefile.am (LIBS, AM_CPPFLAGS): Likewise.
	* release.sh: Call ./bootstrap rather than ./autogen.sh.

2017-11-14  Colin Watson  <cjwatson@debian.org>

Version: 1.5.0.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to 6:0:5.

2017-11-14  Colin Watson  <cjwatson@debian.org>

Add pipecmd_pre_exec function

* lib/pipeline-private.h (struct pipecmd): Add pre_exec_func,
	pre_exec_free_func, and pre_exec_data.
	* lib/pipeline.c (pipecmd_new, pipecmd_new_function,
	pipecmd_new_sequencev): Initialise cmd->pre_exec_func,
	cmd->pre_exec_free_func, and cmd->pre_exec_data.
	(pipecmd_dup): Copy cmd->pre_exec_func, cmd->pre_exec_free_func, and
	cmd->pre_exec_data if necessary.
	(pipecmd_pre_exec): New function.
	(pipecmd_exec): If cmd->pre_exec_func is set, call it immediately before
	calling execvp or cmd->func.
	* lib/pipeline.h (pipecmd_pre_exec): Add prototype.
	(pipeline_install_post_fork): Cross-reference pipecmd_pre_exec in
	comment.
	* man/Makefile.am (FUNCTIONS): Add pipecmd_pre_exec.
	* man/libpipeline.3 (Functions to build individual commands): Document
	pipecmd_pre_exec.
	(Functions to run pipelines and handle signals): Cross-reference
	pipecmd_pre_exec from pipeline_install_post_fork.
	* tests/basic.c (test_basic_pre_exec): Test pipecmd_pre_exec.
	* NEWS: Document this.
	* README: Update copyright years.

2017-07-10  Colin Watson  <cjwatson@debian.org>

tests/read.c: Update program_name

2017-07-10  Colin Watson  <cjwatson@debian.org>

Version: 1.4.2.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to 5:2:4.

2017-07-10  Colin Watson  <cjwatson@debian.org>

Fix EOF detection in get_line

* lib/pipeline.c (get_line): A short read isn't a reliable way to detect
	end-of-file.  Instead, keep track of the previous buffer length returned
	by get_block; if we get the same length twice in a row then that
	indicates EOF.
	* tests/reading_long_line.c: Rename to ...
	* tests/read.c: ... this.  Update build system and test names to match.
	(slow_line_helper, test_read_readline_slow): New test.

2017-07-10  Colin Watson  <cjwatson@debian.org>

Various autotools upgrades

Upgrade to Automake 1.15.1, config.guess 2016-10-02, config.sub
	2016-11-04, and Libtool 2.4.6-2 (from Debian).

2016-10-13  Colin Watson  <cjwatson@debian.org>

Add home page URL to README

Suggested by Christopher Yeleighton.

2015-08-17  Colin Watson  <cjwatson@debian.org>

Version: 1.4.1.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	5:1:4.

2015-08-17  Colin Watson  <cjwatson@debian.org>

Upgrade to Automake 1:1.15-3 (from Debian).

2015-08-16  Colin Watson  <cjwatson@debian.org>

Fix test failure with Check 0.10.0

Reported by Bruce Dubbs.

* tests/inspect.c (pid_helper): Set SIGTERM back to SIG_DFL, in case
	Check installed its own handler for that.
	* NEWS: Document this.

2015-08-06  Colin Watson  <cjwatson@debian.org>

Upgrade to Automake 1.15.

2015-06-18  Colin Watson  <cjwatson@debian.org>

Various autotools upgrades

* aclocal.m4: Upgrade to Gettext 0.19.4.
	* build-aux/ltmain.sh: Upgrade to Libtool 2.4.2-1.11 (from Debian).

2014-10-26  Colin Watson  <cjwatson@debian.org>

Version: 1.4.0.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	5:0:4.

2014-10-26  Colin Watson  <cjwatson@debian.org>

Remove generated gnulib/lib/fcntl.h, added by accident

* gnulib/lib/fcntl.h: Remove.
	* .gitignore: Add gnulib/lib/fcntl.h.

2014-10-24  Colin Watson  <cjwatson@debian.org>

Add pipecmd_fchdir function

* lib/pipeline-private.h (struct pipecmd): Add cwd_fd.
	* lib/pipeline.c (pipecmd_new, pipecmd_new_function,
	pipecmd_new_sequencev): Initialise cmd->cwd_fd.
	(pipecmd_dup): Copy cmd->cwd_fd if necessary.
	(pipecmd_fchdir): New function.
	(pipecmd_dump, pipecmd_tostring): Serialise cmd->cwd_fd as "(cd <fd
	%d> && ...)" if necessary.
	(pipecmd_exec): If cmd->cwd_fd is set, fchdir to it.
	* lib/pipeline.h (pipecmd_fchdir): Add prototype.
	* man/Makefile.am (FUNCTIONS): Add pipecmd_fchdir.
	* man/libpipeline.3 (Functions to build individual commands):
	Document pipecmd_fchdir.
	* tests/basic.c (test_basic_fchdir): Test pipecmd_fchdir.
	* NEWS: Document this.

2014-10-23  Colin Watson  <cjwatson@debian.org>

NEWS: Document recent Solaris portability changes

2014-10-23  Colin Watson  <cjwatson@debian.org>

Add a cleaner way to suppress "Terminated" errors in tests

* lib/pipeline.c (pipecmd_exec, pipeline_wait_all): If
	PIPELINE_QUIET is set, don't emit an error message when a subprocess
	is terminated by a signal.
	* man/libpipeline.3 (ENVIRONMENT): Document this.
	* tests/inspect.c (test_inspect_pid): Use this rather than assigning
	to stderr, which is not portable to Solaris.  Reported by Peter
	Bray.

2014-10-22  Colin Watson  <cjwatson@debian.org>

autogen.sh: Avoid "export VARIABLE=value" syntax

Older Solaris shells do not support this.  Patch by Peter Bray.

2014-10-22  Colin Watson  <cjwatson@debian.org>

gnulib: Import mkdtemp module.

Suggested by Peter Bray.

2014-09-22  Colin Watson  <cjwatson@debian.org>

Version: 1.3.1.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	4:1:3.

2014-09-22  Colin Watson  <cjwatson@debian.org>

Fix build on systems with neither setenv nor clearenv

Fixes Savannah bug #43265.

* lib/pipeline.c (clearenv): Don't define if defined(HAVE_SETENV),
	as in that case gnulib will provide this symbol.
	* lib/pipeline-private.h (clearenv): Likewise.
	* NEWS: Document this.

2014-09-17  Colin Watson  <cjwatson@debian.org>

Make sure that the generated shared library has no undefined symbols

Based on a change found in
	https://github.com/Alexpux/MSYS2-packages/tree/master/libpipeline.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Add -no-undefined.

2014-09-15  Colin Watson  <cjwatson@debian.org>

Various autotools upgrades

* aclocal.m4: Upgrade to pkg-config 0.28 and Gettext 0.19.2.
	* build-aux/config.sub: Upgrade to 2014-09-11.
	* build-aux/ltmain.sh: Upgrade to Libtool 2.4.2-1.10 (from Debian).

2014-08-03  Colin Watson  <cjwatson@debian.org>

Update to config.guess 2014-03-23 and config.sub 2014-05-01.

2014-04-24  Colin Watson  <cjwatson@debian.org>

Fix test failures on Cygwin.

Reported by Chris J. Breisch.

* configure.ac: Define SHELL as a C preprocessor symbol.
	* tests/basic.c (test_basic_wait_all, test_basic_setenv,
	test_basic_unsetenv, test_basic_clearenv): Execute SHELL rather than
	"sh".
	* tests/exec.c (test_exec_process): Likewise.

* tests/basic.c (test_basic_args, test_basic_pipeline,
	test_basic_unsetenv, test_basic_clearenv, test_basic_chdir,
	test_basic_sequence): Check for pipeline_readline returning NULL.
	* tests/inspect.c (test_inspect_pid): Likewise.
	* tests/redirect.c (test_redirect_files): Likewise.

* NEWS: Document this.

2014-03-26  Colin Watson  <cjwatson@debian.org>

Version: 1.3.0.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	4:0:3.

2014-03-26  Colin Watson  <cjwatson@debian.org>

* NEWS: Set next version to 1.3.0, due to new API.

* lib/pipeline.c (pipecmd_dump): Simplify one fprintf to fputs.

Upgrade to Automake 1:1.14.1-3 (from Debian).

2014-03-26  Colin Watson  <cjwatson@debian.org>

Add pipecmd_chdir function

* lib/pipeline-private.h (struct pipecmd): Add cwd.
	* lib/pipeline.c (pipecmd_new, pipecmd_new_function,
	pipecmd_new_sequencev): Initialise cmd->cwd.
	(pipecmd_dup): Copy cmd->cwd if necessary.
	(pipecmd_chdir): New function.
	(pipecmd_dump, pipecmd_tostring): Serialise cmd->cwd as "(cd %s &&
	...)" if necessary.
	(pipecmd_exec): If cmd->cwd is set, chdir to it.
	(pipecmd_free): Free cmd->cwd.
	* lib/pipeline.h (pipecmd_chdir): Add prototype.
	* man/Makefile.am (FUNCTIONS): Add pipecmd_chdir.
	* man/libpipeline.3 (Functions to build individual commands):
	Document pipecmd_chdir.
	* tests/basic.c (test_basic_chdir): Test pipecmd_chdir.
	* NEWS: Document this.

2014-02-20  Colin Watson  <cjwatson@debian.org>

Move Autotools auxiliary build files from tools to build-aux.

"build-aux" is a more conventional location for the Autotools files.

2014-02-18  Colin Watson  <cjwatson@debian.org>

Upgrade to Gnulib 20140202 and Libtool 2.4.2-1.7 (from Debian).

2014-02-06  Colin Watson  <cjwatson@debian.org>

Upgrade to Automake 1.14.1 and Libtool 2.4.2-1.6 (from Debian).

2013-12-18  Colin Watson  <cjwatson@debian.org>

Version: 1.2.6.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	  3:6:2.

2013-12-18  Colin Watson  <cjwatson@debian.org>

Fix occasional failure in test_pump_tee

* tests/pump.c (test_pump_tee): Wait for child processes before
	testing output.
	* NEWS: Document this.

2013-12-18  Colin Watson  <cjwatson@debian.org>

Clarify pipeline_wait's return value

* man/libpipeline.3 (pipeline_wait): Synchronise description of
	return value with pipeline.h.

2013-12-03  Colin Watson  <cjwatson@debian.org>

Version: 1.2.5.

* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
	  3:5:2.

2013-12-03  Colin Watson  <cjwatson@debian.org>

gnulib: Import gnupload module.

2013-12-03  Colin Watson  <cjwatson@debian.org>

Build with large file support where available

* gnulib: Import largefile module.
	* NEWS: Document this.

2013-12-03  Colin Watson  <cjwatson@debian.org>

Automatically generate ChangeLog from git

* ChangeLog: Move to ...
	* ChangeLog-2013: ... here.
	* Makefile.am (EXTRA_DIST): Add ChangeLog-2013.
	  (dist-hook): Add gen-ChangeLog.
	  (gen-ChangeLog): New rule, based on that in coreutils.
	* gnulib: Import gitlog-to-changelog module.