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#!/usr/bin/env perl
use strict;
use warnings;
use POSIX qw(strftime);
use File::Basename;
sub update_man_page($);
sub update_bin_tool($);
sub update_txt_file($);
sub update_spec_file($);
sub write_version_file($);
sub get_file_info($);
our $directory = $ARGV[0];
our $version = $ARGV[1];
our $release = $ARGV[2];
our $full = $ARGV[3];
our @man_pages = ("man/gendesc.1", "man/genhtml.1", "man/geninfo.1",
"man/genpng.1", "man/lcov.1", "man/lcovrc.5");
our @bin_tools = ("bin/gendesc", "bin/genhtml", "bin/geninfo",
"bin/genpng", "bin/lcov");
our @txt_files = ("README");
our @spec_files = ("rpm/lcov.spec");
if (!defined($directory) || !defined($version) || !defined($release)) {
die("Usage: $0 DIRECTORY|FILE VERSION RELEASE FULL_VERSION\n");
}
# Determine mode of operation
if (-f $directory) {
my $file = $directory;
my $base = basename($file);
if (grep(/^$base$/, map({ basename($_) } @man_pages))) {
print("Updating man page $file\n");
update_man_page($file);
} elsif (grep(/^$base$/, map({ basename($_) } @bin_tools))) {
print("Updating bin tool $file\n");
update_bin_tool($file);
} elsif (grep(/^$base$/, map({ basename($_) } @txt_files))) {
print("Updating text file $file\n");
update_txt_file($file);
} elsif (grep(/^$base$/, map({ basename($_) } @spec_files))) {
print("Updating spec file $file\n");
update_spec_file($file);
} elsif ($base eq ".version") {
print("Updating version file $file\n");
write_version_file($file);
} else {
print("WARNING: Skipping unknown file $file\n");
}
print("Done.\n");
exit(0);
}
foreach (@man_pages) {
print("Updating man page $_\n");
update_man_page($directory."/".$_);
}
foreach (@bin_tools) {
print("Updating bin tool $_\n");
update_bin_tool($directory."/".$_);
}
foreach (@txt_files) {
print("Updating text file $_\n");
update_txt_file($directory."/".$_);
}
foreach (@spec_files) {
print("Updating spec file $_\n");
update_spec_file($directory."/".$_);
}
print("Updating version file $directory/.version\n");
write_version_file("$directory/.version");
print("Done.\n");
sub get_file_info($)
{
my ($filename) = @_;
my ($sec, $min, $hour, $year, $month, $day);
my @stat;
my $gittime;
return (0, 0, 0) if (!-e $filename);
@stat = stat($filename);
my $epoch = int($ENV{SOURCE_DATE_EPOCH} || $stat[9]);
$epoch = $stat[9] if $stat[9] < $epoch;
($sec, $min, $hour, $day, $month, $year) = gmtime($epoch);
$year += 1900;
$month += 1;
return (sprintf("%04d-%02d-%02d", $year, $month, $day),
sprintf("%04d%02d%02d%02d%02d.%02d", $year, $month, $day,
$hour, $min, $sec),
sprintf("%o", $stat[2] & 07777));
}
sub update_man_page($)
{
my ($filename) = @_;
my @date = get_file_info($filename);
# Support SOURCE_DATE_EPOCH for date:
# https://reproducible-builds.org/docs/source-date-epoch/
my $date_string = strftime("%Y-%m-%d", gmtime($ENV{SOURCE_DATE_EPOCH} || $date[0]));
local *IN;
local *OUT;
$date_string =~ s/-/\\-/g;
open(IN, "<$filename") || die ("Error: cannot open $filename\n");
open(OUT, ">$filename.new") ||
die("Error: cannot create $filename.new\n");
while (<IN>) {
s/\"LCOV\s+\d+\.\d+\"/\"LCOV $version\"/g;
s/\d\d\d\d\\\-\d\d\\\-\d\d/$date_string/g;
print(OUT $_);
}
close(OUT);
close(IN);
chmod(oct($date[2]), "$filename.new");
system("mv", "-f", "$filename.new", "$filename");
system("touch", "$filename", "-t", $date[1]);
}
sub update_bin_tool($)
{
my ($filename) = @_;
my @date = get_file_info($filename);
local *IN;
local *OUT;
open(IN, "<$filename") || die ("Error: cannot open $filename\n");
open(OUT, ">$filename.new") ||
die("Error: cannot create $filename.new\n");
while (<IN>) {
s/^(our\s+\$lcov_version\s*=).*$/$1 "LCOV version $full";/g;
print(OUT $_);
}
close(OUT);
close(IN);
chmod(oct($date[2]), "$filename.new");
system("mv", "-f", "$filename.new", "$filename");
system("touch", "$filename", "-t", $date[1]);
}
sub update_txt_file($)
{
my ($filename) = @_;
my @date = get_file_info($filename);
local *IN;
local *OUT;
open(IN, "<$filename") || die ("Error: cannot open $filename\n");
open(OUT, ">$filename.new") ||
die("Error: cannot create $filename.new\n");
while (<IN>) {
s/(Last\s+changes:\s+)\d\d\d\d-\d\d-\d\d/$1$date[0]/g;
print(OUT $_);
}
close(OUT);
close(IN);
chmod(oct($date[2]), "$filename.new");
system("mv", "-f", "$filename.new", "$filename");
system("touch", "$filename", "-t", $date[1]);
}
sub update_spec_file($)
{
my ($filename) = @_;
my @date = get_file_info($filename);
local *IN;
local *OUT;
open(IN, "<$filename") || die ("Error: cannot open $filename\n");
open(OUT, ">$filename.new") ||
die("Error: cannot create $filename.new\n");
while (<IN>) {
s/^(Version:\s*)\d+\.\d+.*$/$1$version/;
s/^(Release:\s*).*$/$1$release/;
print(OUT $_);
}
close(OUT);
close(IN);
system("mv", "-f", "$filename.new", "$filename");
system("touch", "$filename", "-t", $date[1]);
}
sub write_version_file($)
{
my ($filename) = @_;
my $fd;
open($fd, ">", $filename) or die("Error: cannot write $filename: $!\n");
print($fd "VERSION=$version\n");
print($fd "RELEASE=$release\n");
print($fd "FULL=$full\n");
close($fd);
}
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