2 * Generate include file dependencies
4 * Copyright 1996 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
32 /* Max first-level includes per file */
33 #define MAX_INCLUDES 200
35 typedef struct _INCL_FILE
37 struct _INCL_FILE *next;
40 struct _INCL_FILE *included_by; /* file that included this one */
41 int included_line; /* line where this file was included */
42 int system; /* is it a system include (#include <name>) */
43 struct _INCL_FILE *owner;
44 struct _INCL_FILE *files[MAX_INCLUDES];
47 static INCL_FILE *firstSrc;
48 static INCL_FILE *firstInclude;
50 typedef struct _INCL_PATH
52 struct _INCL_PATH *next;
56 static INCL_PATH *firstPath;
58 static const char *SrcDir = NULL;
59 static const char *OutputFileName = "Makefile";
60 static const char *Separator = "### Dependencies";
61 static const char *ProgramName;
63 static const char Usage[] =
64 "Usage: %s [options] [files]\n"
66 " -Idir Search for include files in directory 'dir'\n"
67 " -Cdir Search for source files in directory 'dir'\n"
68 " -fxxx Store output in file 'xxx' (default: Makefile)\n"
69 " -sxxx Use 'xxx' as separator (default: \"### Dependencies\")\n";
72 /*******************************************************************
75 static void *xmalloc( int size )
78 if (!(res = malloc (size ? size : 1)))
80 fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
87 /*******************************************************************
90 static char *xstrdup( const char *str )
92 char *res = strdup( str );
95 fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
102 /*******************************************************************
105 * Test if a given file type is generated during the make process
107 static int is_generated( const char *name )
109 static const char * const extensions[] = { ".tab.h", ".mc.rc" };
110 size_t i, len = strlen(name);
111 for (i = 0; i < sizeof(extensions)/sizeof(extensions[0]); i++)
113 if (len <= strlen(extensions[i])) continue;
114 if (!strcmp( name + len - strlen(extensions[i]), extensions[i] )) return 1;
119 /*******************************************************************
122 * Add a directory to the include path.
124 static void add_include_path( const char *name )
126 INCL_PATH *path = xmalloc( sizeof(*path) );
127 INCL_PATH **p = &firstPath;
128 while (*p) p = &(*p)->next;
135 /*******************************************************************
138 * Add a source file to the list.
140 static INCL_FILE *add_src_file( const char *name )
142 INCL_FILE **p = &firstSrc;
143 INCL_FILE *file = xmalloc( sizeof(*file) );
144 memset( file, 0, sizeof(*file) );
145 file->name = xstrdup(name);
146 while (*p) p = &(*p)->next;
152 /*******************************************************************
155 * Add an include file if it doesn't already exists.
157 static INCL_FILE *add_include( INCL_FILE *pFile, const char *name, int line, int system )
159 INCL_FILE **p = &firstInclude;
162 for (pos = 0; pos < MAX_INCLUDES; pos++) if (!pFile->files[pos]) break;
163 if (pos >= MAX_INCLUDES)
165 fprintf( stderr, "%s: %s: too many included files, please fix MAX_INCLUDES\n",
166 ProgramName, pFile->name );
170 while (*p && strcmp( name, (*p)->name )) p = &(*p)->next;
173 *p = xmalloc( sizeof(INCL_FILE) );
174 memset( *p, 0, sizeof(INCL_FILE) );
175 (*p)->name = xstrdup(name);
176 (*p)->included_by = pFile;
177 (*p)->included_line = line;
178 (*p)->system = system || pFile->system;
180 pFile->files[pos] = *p;
185 /*******************************************************************
188 static FILE *open_src_file( INCL_FILE *pFile )
194 pFile->filename = xmalloc( strlen(SrcDir) + strlen(pFile->name) + 2 );
195 strcpy( pFile->filename, SrcDir );
196 strcat( pFile->filename, "/" );
197 strcat( pFile->filename, pFile->name );
199 else pFile->filename = xstrdup( pFile->name );
201 if (!(file = fopen( pFile->filename, "r" )))
203 perror( pFile->filename );
210 /*******************************************************************
213 static FILE *open_include_file( INCL_FILE *pFile )
218 for (path = firstPath; path; path = path->next)
220 char *filename = xmalloc(strlen(path->name) + strlen(pFile->name) + 2);
221 strcpy( filename, path->name );
222 strcat( filename, "/" );
223 strcat( filename, pFile->name );
224 if ((file = fopen( filename, "r" )))
226 pFile->filename = filename;
231 if (!file && pFile->system) return NULL; /* ignore system files we cannot find */
233 /* try in src file directory */
236 char *p = strrchr(pFile->included_by->filename, '/');
239 int l = p - pFile->included_by->filename + 1;
240 char *filename = xmalloc(l + strlen(pFile->name) + 1);
241 memcpy( filename, pFile->included_by->filename, l );
242 strcpy( filename + l, pFile->name );
243 if ((file = fopen( filename, "r" ))) pFile->filename = filename;
244 else free( filename );
250 if (pFile->included_by->system) return NULL; /* ignore if included by a system file */
251 if (firstPath) perror( pFile->name );
252 else fprintf( stderr, "%s: %s: File not found\n",
253 ProgramName, pFile->name );
254 while (pFile->included_by)
256 fprintf( stderr, " %s was first included from %s:%d\n",
257 pFile->name, pFile->included_by->name, pFile->included_line );
258 pFile = pFile->included_by;
266 /*******************************************************************
269 static void parse_file( INCL_FILE *pFile, int src )
276 if (is_generated( pFile->name ))
278 /* file is generated during make, don't try to open it */
279 pFile->filename = xstrdup( pFile->name );
283 file = src ? open_src_file( pFile ) : open_include_file( pFile );
286 while (fgets( buffer, sizeof(buffer)-1, file ))
291 while (*p && isspace(*p)) p++;
292 if (*p++ != '#') continue;
293 while (*p && isspace(*p)) p++;
294 if (strncmp( p, "include", 7 )) continue;
296 while (*p && isspace(*p)) p++;
297 if (*p != '\"' && *p != '<' ) continue;
299 if (quote == '<') quote = '>';
301 while (*p && (*p != quote)) p++;
304 fprintf( stderr, "%s:%d: Malformed #include directive\n",
305 pFile->filename, line );
309 add_include( pFile, include, line, (quote == '>') );
315 /*******************************************************************
318 static void output_include( FILE *file, INCL_FILE *pFile,
319 INCL_FILE *owner, int *column )
323 if (pFile->owner == owner) return;
324 if (!pFile->filename) return;
325 pFile->owner = owner;
326 if (*column + strlen(pFile->filename) + 1 > 70)
328 fprintf( file, " \\\n" );
331 fprintf( file, " %s", pFile->filename );
332 *column += strlen(pFile->filename) + 1;
333 for (i = 0; i < MAX_INCLUDES; i++)
334 if (pFile->files[i]) output_include( file, pFile->files[i],
339 /*******************************************************************
342 static void output_src( FILE *file, INCL_FILE *pFile, int *column )
344 char *obj = xstrdup( pFile->name );
345 char *ext = strrchr( obj, '.' );
346 if (ext && strchr( ext, '/' )) ext = NULL;
350 if (!strcmp( ext, "y" )) /* yacc file */
352 *column += fprintf( file, "y.tab.o: y.tab.c" );
354 else if (!strcmp( ext, "l" )) /* lex file */
356 *column += fprintf( file, "%s.o: %s.c", LEX_OUTPUT_ROOT, LEX_OUTPUT_ROOT );
358 else if (!strcmp( ext, "rc" )) /* resource file */
360 *column += fprintf( file, "%s.res: %s", obj, pFile->filename );
362 else if (!strcmp( ext, "mc" )) /* message file */
364 *column += fprintf( file, "%s.mc.rc: %s", obj, pFile->filename );
368 *column += fprintf( file, "%s.o: %s", obj, pFile->filename );
375 /*******************************************************************
376 * output_dependencies
378 static void output_dependencies(void)
385 if (Separator && ((file = fopen( OutputFileName, "r+" ))))
387 while (fgets( buffer, sizeof(buffer), file ))
388 if (!strncmp( buffer, Separator, strlen(Separator) )) break;
389 ftruncate( fileno(file), ftell(file) );
390 fseek( file, 0L, SEEK_END );
394 if (!(file = fopen( OutputFileName, Separator ? "a" : "w" )))
396 perror( OutputFileName );
400 for( pFile = firstSrc; pFile; pFile = pFile->next)
403 output_src( file, pFile, &column );
404 for (i = 0; i < MAX_INCLUDES; i++)
405 if (pFile->files[i]) output_include( file, pFile->files[i],
407 fprintf( file, "\n" );
413 /*******************************************************************
416 static void parse_option( const char *opt )
421 if (opt[2]) add_include_path( opt + 2 );
424 if (opt[2]) SrcDir = opt + 2;
428 if (opt[2]) OutputFileName = opt + 2;
431 if (opt[2]) Separator = opt + 2;
432 else Separator = NULL;
435 fprintf( stderr, "Unknown option '%s'\n", opt );
436 fprintf( stderr, Usage, ProgramName );
442 /*******************************************************************
445 int main( int argc, char *argv[] )
449 ProgramName = argv[0];
452 if (*argv[1] == '-') parse_option( argv[1] );
455 pFile = add_src_file( argv[1] );
456 parse_file( pFile, 1 );
461 for (pFile = firstInclude; pFile; pFile = pFile->next)
462 parse_file( pFile, 0 );
463 if( firstSrc ) output_dependencies();