doc: Add man file for igzip

Change-Id: I13b054aebddcdc1bfa9ae9b82cf4fc5c8ebab94b
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>

make.inc

@@ -256,9 +256,10 @@ isa-l.h:
 
 # Target for install
 prefix = /usr/local
-install_dirs = $(prefix)/lib $(prefix)/include/isa-l
+man1dir ?= $(prefix)/share/man/man1
+install_dirs = $(prefix)/lib $(prefix)/include/isa-l $(prefix)/bin $(man1dir)
 $(install_dirs): ; mkdir -p $@
-install: $(sort $(extern_hdrs)) | $(install_dirs) $(lib_name) $(so_lib_name) isa-l.h
+install: $(sort $(extern_hdrs)) | $(install_dirs) $(lib_name) $(so_lib_name) isa-l.h $(bin_PROGRAMS)
 	install -m 644 $(lib_name) $(prefix)/lib/libisal.a
 	install -m 644 $^ $(prefix)/include/isa-l/.
 	install -m 664 isa-l.h $(prefix)/include/.
@@ -273,6 +274,7 @@ else
 	echo 'Lib installed at $(prefix)/lib. Run system-dependent programs to add shared lib path.'
 endif
 	install -m 774 $(bin_PROGRAMS) $(prefix)/bin/.
+	install -m 664 $(dist_man_MANS) $(man1dir)/.
 
 uninstall:
 	$(RM) $(prefix)/lib/libisal.a
@@ -283,6 +285,7 @@ uninstall:
 	$(RM) $(prefix)/include/isa-l.h
 	$(RM) $(prefix)/lib/$(basename $(so_lib_inst)).dylib
 	$(RM) $(prefix)/bin/$(notdir $(bin_PROGRAMS))
+	$(RM) $(man1dir)/$(notdir $(dist_man_MANS))
 
 # Collect performance data
 rpt_name = perf_report_$(shell uname -n)_$(shell date +%y%m%d).perf

programs/Makefile.am

@@ -31,3 +31,8 @@
 bin_PROGRAMS += programs/igzip
 programs_igzip_SOURCES = programs/igzip_cli.c
 programs_igzip_LDADD = libisal.la
+dist_man_MANS = programs/igzip.1
+other_src    += programs/igzip.1.h2m
+
+programs/igzip.1: % : %.h2m programs/igzip_cli.c
+	-help2man -o $@ -i $< -N ./programs/igzip

programs/igzip.1

@@ -0,0 +1,75 @@
+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.6.
+.TH IGZIP "1" "September 2018" "igzip command line interface 2.23.0" "User Commands"
+.SH NAME
+igzip \- manual page for igzip command line interface 2.23.0
+.SH SYNOPSIS
+.B igzip
+[\fI\,options\/\fR] [\fI\,infiles\/\fR]
+.SH DESCRIPTION
+
+Compress or decompress files similar to gzip using the ISA-L fast deflate library.
+
+Output .gz files are compatible with gzip and [RFC-1952].
+
+Options are similar to gzip except --keep is default.
+.SH OPTIONS
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+help, print this message
+.TP
+\-#
+use compression level # with 0 <= # <= 3
+.TP
+\fB\-o\fR
+<file>           output file
+.TP
+\fB\-c\fR, \fB\-\-stdout\fR
+write to stdout
+.TP
+\fB\-d\fR, \fB\-\-decompress\fR
+decompress file
+.TP
+\fB\-z\fR, \fB\-\-compress\fR
+compress file (default)
+.TP
+\fB\-f\fR, \fB\-\-force\fR
+overwrite output without prompting
+.TP
+\fB\-\-rm\fR
+remove source files after successful (de)compression
+.TP
+\fB\-k\fR, \fB\-\-keep\fR
+keep source files (default)
+.TP
+\fB\-S\fR, \fB\-\-suffix\fR <.suf>
+suffix to use while (de)compressing
+.TP
+\fB\-V\fR, \fB\-\-version\fR
+show version number
+.TP
+\fB\-v\fR, \fB\-\-verbose\fR
+verbose mode
+.TP
+\fB\-q\fR, \fB\-\-quiet\fR
+suppress warnings
+.PP
+with no infile, or when infile is \- , read standard input
+.SH EXAMPLES
+
+Make compressed file1.gz and file2.gz and keep file1 and file2.
+.RS
+.B igzip file1 file2
+.RE
+
+Piped compression and decompression.
+.RS
+.B igzip -c file.txt | igzip -d -c -
+.RE
+
+Streaming compression from output of tar, compress level 2.
+.RS
+.B tar cf - dir1 | igzip -2 > dir1.tar.gz
+.RE
+.SH "REPORTING BUGS"
+
+Report bugs to https://github.com/01org/isa-l/issues

programs/igzip.1.h2m

@@ -0,0 +1,28 @@
+[Description]
+
+Compress or decompress files similar to gzip using the ISA-L fast deflate library.
+
+Output .gz files are compatible with gzip and [RFC-1952].
+
+Options are similar to gzip except --keep is default.
+
+[Examples]
+
+Make compressed file1.gz and file2.gz and keep file1 and file2.
+.RS
+.B igzip file1 file2
+.RE
+
+Piped compression and decompression.
+.RS
+.B igzip -c file.txt | igzip -d -c -
+.RE
+
+Streaming compression from output of tar, compress level 2.
+.RS
+.B tar cf - dir1 | igzip -2 > dir1.tar.gz
+.RE
+
+[Reporting Bugs]
+
+Report bugs to https://github.com/01org/isa-l/issues