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Move genbki.pl's find_defined_symbol to Catalog.pm.

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Will be used in Gen_fmgrtab.pl in a followup commit.
This commit is contained in:
Andres Freund 2017-10-04 00:11:36 -07:00
parent 4736d74479
commit 18f791ab2b
2 changed files with 38 additions and 31 deletions
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35
src/backend/catalog/Catalog.pm
View File

@ -19,7 +19,7 @@ use warnings;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT = ();
our @EXPORT_OK = qw(Catalogs SplitDataLine RenameTempFile);
our @EXPORT_OK = qw(Catalogs SplitDataLine RenameTempFile FindDefinedSymbol);
# Call this function with an array of names of header files to parse.
# Returns a nested data structure describing the data in the headers.
@ -252,6 +252,39 @@ sub RenameTempFile
rename($temp_name, $final_name) || die "rename: $temp_name: $!";
}
# Find a symbol defined in a particular header file and extract the value.
#
# The include path has to be passed as a reference to an array.
sub FindDefinedSymbol
{
my ($catalog_header, $include_path, $symbol) = @_;
for my $path (@$include_path)
{
# Make sure include path ends in a slash.
if (substr($path, -1) ne '/')
{
$path .= '/';
}
my $file = $path . $catalog_header;
next if !-f $file;
open(my $find_defined_symbol, '<', $file) || die "$file: $!";
while (<$find_defined_symbol>)
{
if (/^#define\s+\Q$symbol\E\s+(\S+)/)
{
return $1;
}
}
close $find_defined_symbol;
die "$file: no definition found for $symbol\n";
}
die "$catalog_header: not found in any include directory\n";
}
# verify the number of fields in the passed-in DATA line
sub check_natts
{

34
src/backend/catalog/genbki.pl
View File

@ -87,9 +87,11 @@ open my $shdescr, '>', $shdescrfile . $tmpext
# NB: make sure that the files used here are known to be part of the .bki
# file's dependencies by src/backend/catalog/Makefile.
my $BOOTSTRAP_SUPERUSERID =
find_defined_symbol('pg_authid.h', 'BOOTSTRAP_SUPERUSERID');
Catalog::FindDefinedSymbol('pg_authid.h', \@include_path,
'BOOTSTRAP_SUPERUSERID');
my $PG_CATALOG_NAMESPACE =
find_defined_symbol('pg_namespace.h', 'PG_CATALOG_NAMESPACE');
Catalog::FindDefinedSymbol('pg_namespace.h', \@include_path,
'PG_CATALOG_NAMESPACE');
# Read all the input header files into internal data structures
my $catalogs = Catalog::Catalogs(@input_files);
@ -500,34 +502,6 @@ sub emit_schemapg_row
return $row;
}
# Find a symbol defined in a particular header file and extract the value.
sub find_defined_symbol
{
my ($catalog_header, $symbol) = @_;
for my $path (@include_path)
{
# Make sure include path ends in a slash.
if (substr($path, -1) ne '/')
{
$path .= '/';
}
my $file = $path . $catalog_header;
next if !-f $file;
open(my $find_defined_symbol, '<', $file) || die "$file: $!";
while (<$find_defined_symbol>)
{
if (/^#define\s+\Q$symbol\E\s+(\S+)/)
{
return $1;
}
}
close $find_defined_symbol;
die "$file: no definition found for $symbol\n";
}
die "$catalog_header: not found in any include directory\n";
}
sub usage
{
die <<EOM;