Add a proper build system

FossilOrigin-Name: 8679c61b2c82da9daa316ed5eb90ba1b69e608127afa318cbdbff56b53d65a74

src/exceptions/Makefile

@@ -0,0 +1,14 @@
+include ../../extra.mk
+
+STATIC_PIC_LIB_NOINST = ${EXCEPTIONS_LIB_A}
+STATIC_LIB_NOINST = ${EXCEPTIONS_A}
+
+SRCS = PGCommandFailedException.m	\
+       PGConnectionFailedException.m	\
+       PGException.m
+
+INCLUDES = ${SRCS:.m=.h}
+
+include ../../buildsys.mk
+
+CPPFLAGS += -I. -I..

src/exceptions/PGCommandFailedException.h

@@ -0,0 +1,17 @@
+#import "PGException.h"
+
+@interface PGCommandFailedException: PGException
+{
+	OFString *_command;
+}
+
+#ifdef OF_HAVE_PROPERTIES
+@property (readonly, copy, nonatomic) OFString *command;
+#endif
+
++ (instancetype)exceptionWithConnection: (PGConnection*)connection
+				command: (OFString*)command;
+- initWithConnection: (PGConnection*)connection
+	     command: (OFString*)command;
+- (OFString*)command;
+@end

src/exceptions/PGCommandFailedException.m

@@ -0,0 +1,43 @@
+#import "PGCommandFailedException.h"
+
+@implementation PGCommandFailedException
++ (instancetype)exceptionWithConnection: (PGConnection*)connection
+				command: (OFString*)command
+{
+	return [[[self alloc] initWithConnection: connection
+					 command: command] autorelease];
+}
+
+- initWithConnection: (PGConnection*)connection
+	     command: (OFString*)command
+{
+	self = [super initWithConnection: connection];
+
+	@try {
+		_command = [command copy];
+	} @catch (id e) {
+		[self release];
+		@throw e;
+	}
+
+	return self;
+}
+
+- (void)dealloc
+{
+	[_command release];
+
+	[super dealloc];
+}
+
+- (OFString*)description
+{
+	return [OFString stringWithFormat: @"A PostgreSQL command failed: %@\n"
+					   @"Command: %@", _error, _command];
+}
+
+- (OFString*)command
+{
+	OF_GETTER(_command, NO)
+}
+@end

src/exceptions/PGConnectionFailedException.h

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+#import "PGException.h"
+
+@interface PGConnectionFailedException: PGException
+@end

src/exceptions/PGConnectionFailedException.m

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+#import "PGConnectionFailedException.h"
+
+@implementation PGConnectionFailedException
+- (OFString*)description
+{
+	return [OFString stringWithFormat:
+	    @"Establishing a PostgreSQL connection failed:\n%@\n"
+	    "Parameters: %@", _error, [_connection parameters]];
+}
+@end

src/exceptions/PGException.h

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+#import <ObjFW/ObjFW.h>
+
+#import "PGConnection.h"
+
+@interface PGException: OFException
+{
+	PGConnection *_connection;
+	OFString *_error;
+}
+
+#ifdef OF_HAVE_PROPERTIES
+@property (readonly, retain, nonatomic) PGConnection *connection;
+#endif
+
++ (instancetype)exceptionWithConnection: (PGConnection*)connection;
+- initWithConnection: (PGConnection*)connection;
+- (PGConnection*)connection;
+@end

src/exceptions/PGException.m

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+#import "PGException.h"
+
+@implementation PGException
++ (instancetype)exceptionWithConnection: (PGConnection*)connection
+{
+	return [[[self alloc] initWithConnection: connection] autorelease];
+}
+
+- initWithConnection: (PGConnection*)connection
+{
+	self = [super init];
+
+	@try {
+		_connection = [connection retain];
+		_error = [[OFString alloc]
+		    initWithCString: PQerrorMessage([_connection PG_connection])
+			   encoding: [OFString nativeOSEncoding]];
+	} @catch (id e) {
+		[self release];
+		@throw e;
+	}
+
+	return self;
+}
+
+- (void)dealloc
+{
+	[_connection release];
+	[_error release];
+
+	[super dealloc];
+}
+
+- (OFString*)description
+{
+	return [OFString stringWithFormat: @"A PostgreSQL operation failed: %@",
+					   _error];
+}
+
+- (PGConnection*)connection
+{
+	OF_GETTER(_connection, NO)
+}
+@end