more startup debug output

if VIPS_INFO is set

ChangeLog

@@ -1,6 +1,8 @@
 14/8/20 started 8.11.1
 - add more example code to C docs
 - update libtool support in configure.ac 
+- more startup info if VIPS_INFO is set
+- command-line programs set glib prgname (no longer set for you by VIPS_INIT)
 
 14/8/20 started 8.11
 - add vips_jpegload_source() and vips_svgload_source() to public C API

libvips/iofuncs/init.c

@@ -274,9 +274,7 @@ vips_load_plugins( const char *fmt, ... )
         (void) vips_vsnprintf( dir_name, VIPS_PATH_MAX - 1, fmt, ap );
         va_end( ap );
 
-#ifdef DEBUG
+	g_info( "searching \"%s\"", dir_name );
-	printf( "vips_load_plugins: searching \"%s\"\n", dir_name );
-#endif /*DEBUG*/
 
         if( !(dir = g_dir_open( dir_name, 0, NULL )) ) 
 		/* Silent success for dir not there.
@@ -296,9 +294,7 @@ vips_load_plugins( const char *fmt, ... )
 			vips_snprintf( path, VIPS_PATH_MAX - 1, 
 				"%s" G_DIR_SEPARATOR_S "%s", dir_name, name );
 
-#ifdef DEBUG
+			g_info( "loading \"%s\"", path );
-			printf( "vips_load_plugins: loading \"%s\"\n", path );
-#endif /*DEBUG*/
 
 			module = g_module_open( path, G_MODULE_BIND_LAZY );
 			if( !module ) {
@@ -952,10 +948,7 @@ extract_prefix( const char *dir, const char *name )
 	char vname[VIPS_PATH_MAX];
 	int i;
 
-#ifdef DEBUG
+	g_info( "trying for dir = \"%s\", name = \"%s\"", dir, name );
-	printf( "extract_prefix: trying for dir = \"%s\", name = \"%s\"\n", 
-		dir, name );
-#endif /*DEBUG*/
 
 	/* Is dir relative? Prefix with cwd.
 	 */
@@ -991,9 +984,7 @@ extract_prefix( const char *dir, const char *name )
 	if( vips_ispostfix( vname, G_DIR_SEPARATOR_S ) )
 		vname[strlen( vname ) - 1] = '\0';
 
-#ifdef DEBUG
+	g_info( "canonicalised path = \"%s\"", vname );
-	printf( "extract_prefix: canonicalised path = \"%s\"\n", vname );
-#endif /*DEBUG*/
 
 	/* Ought to be a "/bin" at the end now.
 	 */
@@ -1001,9 +992,7 @@ extract_prefix( const char *dir, const char *name )
 		return( NULL );
 	vname[strlen( vname ) - strlen( G_DIR_SEPARATOR_S "bin" )] = '\0';
 
-#ifdef DEBUG
+	g_info( "found \"%s\"", vname );
-	printf( "extract_prefix: found \"%s\"\n", vname );
-#endif /*DEBUG*/
 
 	return( vips_strdup( NULL, vname ) );
 }
@@ -1025,10 +1014,8 @@ scan_path( char *path, const char *name )
 		vips_snprintf( str, VIPS_PATH_MAX, 
 			"%s" G_DIR_SEPARATOR_S "%s", p, name );
 
-#ifdef DEBUG
+		g_info( "looking in \"%s\" for \"%s\"", 
-		printf( "scan_path: looking in \"%s\" for \"%s\"\n", 
 			p, name );
-#endif /*DEBUG*/
 
 		if( vips_existsf( "%s", str ) && 
 			(prefix = extract_prefix( str, name )) ) {
@@ -1051,9 +1038,7 @@ find_file( const char *name )
 	if( !path )
 		return( NULL );
 
-#ifdef DEBUG
+	g_info( "g_getenv( \"PATH\" ) == \"%s\"", path );
-	printf( "vips_guess_prefix: g_getenv( \"PATH\" ) == \"%s\"\n", path );
-#endif /*DEBUG*/
 
 #ifdef G_OS_WIN32
 {
@@ -1090,10 +1075,7 @@ guess_prefix( const char *argv0, const char *name )
 			/* Must point to our executable.
 			 */
 			if( (prefix = extract_prefix( argv0, name )) ) {
-#ifdef DEBUG
+				g_info( "found \"%s\" from argv0", prefix );
-				printf( "vips_guess_prefix: found \"%s\" from "
-					"argv0\n", prefix );
-#endif /*DEBUG*/
 				return( prefix );
 			} 
 		}
@@ -1101,10 +1083,7 @@ guess_prefix( const char *argv0, const char *name )
 		/* Look along path for name.
 		 */
 		if( (prefix = find_file( name )) ) {
-#ifdef DEBUG
+			g_info( "found \"%s\" from PATH", prefix );
-			printf( "vips_guess_prefix: found \"%s\" from "
-				"PATH\n", prefix );
-#endif /*DEBUG*/
 			return( prefix );
 		}
         }
@@ -1127,10 +1106,7 @@ guess_prefix( const char *argv0, const char *name )
 			g_free( resolved );
 
 			if( prefix ) { 
-#ifdef DEBUG
+				g_info( "found \"%s\" from cwd", prefix );
-				printf( "vips_guess_prefix: found \"%s\" "
-					"from cwd\n", prefix );
-#endif /*DEBUG*/
 				return( prefix );
 			}
 		}
@@ -1168,10 +1144,7 @@ vips_guess_prefix( const char *argv0, const char *env_name )
 	/* Already set?
 	 */
         if( (prefix = g_getenv( env_name )) ) {
-#ifdef DEBUG
+		g_info( "found \"%s\" in environment", prefix );
-		printf( "vips_guess_prefix: found \"%s\" in environment\n", 
-			prefix );
-#endif /*DEBUG*/
                 return( prefix );
 	}
 
@@ -1229,12 +1202,10 @@ vips_guess_libdir( const char *argv0, const char *env_name )
 	else
 		libdir = g_strdup_printf( "%s/lib", prefix );
 
-#ifdef DEBUG
+	g_info( "VIPS_PREFIX = %s", VIPS_PREFIX );
-	printf( "vips_guess_libdir: VIPS_PREFIX = %s\n", VIPS_PREFIX );
+	g_info( "VIPS_LIBDIR = %s", VIPS_LIBDIR );
-	printf( "vips_guess_libdir: VIPS_LIBDIR = %s\n", VIPS_LIBDIR );
+	g_info( "prefix = %s", prefix );
-	printf( "vips_guess_libdir: prefix = %s\n", prefix );
+	g_info( "libdir = %s", libdir );
-	printf( "vips_guess_libdir: libdir = %s\n", libdir );
-#endif /*DEBUG*/
 
 	return( libdir );
 }

tools/vips.c

@@ -528,6 +528,14 @@ main( int argc, char **argv )
 	textdomain( GETTEXT_PACKAGE );
 	setlocale( LC_ALL, "" );
 
+{
+	char *basename;
+
+	basename = g_path_get_basename( argv[0] );
+	g_set_prgname( basename );
+	g_free( basename );
+}
+
 	/* On Windows, argv is ascii-only .. use this to get a utf-8 version of
 	 * the args.
 	 */

tools/vipsedit.c

@@ -138,6 +138,14 @@ main( int argc, char **argv )
 	textdomain( GETTEXT_PACKAGE );
 	setlocale( LC_ALL, "" );
 
+{
+	char *basename;
+
+	basename = g_path_get_basename( argv[0] );
+	g_set_prgname( basename );
+	g_free( basename );
+}
+
 	/* On Windows, argv is ascii-only .. use this to get a utf-8 version of
 	 * the args.
 	 */

tools/vipsheader.c

@@ -177,6 +177,14 @@ main( int argc, char *argv[] )
 	textdomain( GETTEXT_PACKAGE );
 	setlocale( LC_ALL, "" );
 
+{
+	char *basename;
+
+	basename = g_path_get_basename( argv[0] );
+	g_set_prgname( basename );
+	g_free( basename );
+}
+
 	/* On Windows, argv is ascii-only .. use this to get a utf-8 version of
 	 * the args.
 	 */

tools/vipsthumbnail.c

@@ -493,9 +493,13 @@ main( int argc, char **argv )
 	textdomain( GETTEXT_PACKAGE );
 	setlocale( LC_ALL, "" );
 
-	/* The operation cache is not useful for processing many files.
+{
-	vips_cache_set_max( 0 );
+	char *basename;
-	 */
+
+	basename = g_path_get_basename( argv[0] );
+	g_set_prgname( basename );
+	g_free( basename );
+}
 
 	/* On Windows, argv is ascii-only .. use this to get a utf-8 version of
 	 * the args.