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Diffstat (limited to 'jam-files/engine/search.c')
| -rw-r--r-- | jam-files/engine/search.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/jam-files/engine/search.c b/jam-files/engine/search.c deleted file mode 100644 index 6c23d97a..00000000 --- a/jam-files/engine/search.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc. - * - * This file is part of Jam - see jam.c for Copyright information. - */ - -/* This file is ALSO: - * Copyright 2001-2004 David Abrahams. - * Distributed under the Boost Software License, Version 1.0. - * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) - */ - -#include "jam.h" -#include "lists.h" -#include "search.h" -#include "timestamp.h" -#include "pathsys.h" -#include "variable.h" -#include "newstr.h" -#include "compile.h" -#include "strings.h" -#include "hash.h" -#include "filesys.h" -#include <string.h> - - -typedef struct _binding -{ - char * binding; - char * target; -} BINDING; - -static struct hash *explicit_bindings = 0; - - -void call_bind_rule -( - char * target_, - char * boundname_ -) -{ - LIST * bind_rule = var_get( "BINDRULE" ); - if ( bind_rule ) - { - /* No guarantee that the target is an allocated string, so be on the - * safe side. - */ - char * target = copystr( target_ ); - - /* Likewise, do not rely on implementation details of newstr.c: allocate - * a copy of boundname. - */ - char * boundname = copystr( boundname_ ); - if ( boundname && target ) - { - /* Prepare the argument list. */ - FRAME frame[1]; - frame_init( frame ); - - /* First argument is the target name. */ - lol_add( frame->args, list_new( L0, target ) ); - - lol_add( frame->args, list_new( L0, boundname ) ); - if ( lol_get( frame->args, 1 ) ) - evaluate_rule( bind_rule->string, frame ); - - /* Clean up */ - frame_free( frame ); - } - else - { - if ( boundname ) - freestr( boundname ); - if ( target ) - freestr( target ); - } - } -} - -/* - * search.c - find a target along $(SEARCH) or $(LOCATE) - * First, check if LOCATE is set. If so, use it to determine - * the location of target and return, regardless of whether anything - * exists on that location. - * - * Second, examine all directories in SEARCH. If there's file already - * or there's another target with the same name which was placed - * to this location via LOCATE setting, stop and return the location. - * In case of previous target, return it's name via the third argument. - * - * This bevahiour allow to handle dependency on generated files. If - * caller does not expect that target is generated, 0 can be passed as - * the third argument. - */ - -char * -search( - char *target, - time_t *time, - char **another_target, - int file -) -{ - PATHNAME f[1]; - LIST *varlist; - string buf[1]; - int found = 0; - /* Will be set to 1 if target location is specified via LOCATE. */ - int explicitly_located = 0; - char *boundname = 0; - - if ( another_target ) - *another_target = 0; - - if (! explicit_bindings ) - explicit_bindings = hashinit( sizeof(BINDING), - "explicitly specified locations"); - - string_new( buf ); - /* Parse the filename */ - - path_parse( target, f ); - - f->f_grist.ptr = 0; - f->f_grist.len = 0; - - if ( ( varlist = var_get( "LOCATE" ) ) ) - { - f->f_root.ptr = varlist->string; - f->f_root.len = strlen( varlist->string ); - - path_build( f, buf, 1 ); - - if ( DEBUG_SEARCH ) - printf( "locate %s: %s\n", target, buf->value ); - - explicitly_located = 1; - - timestamp( buf->value, time ); - found = 1; - } - else if ( ( varlist = var_get( "SEARCH" ) ) ) - { - while ( varlist ) - { - BINDING b, *ba = &b; - file_info_t *ff; - - f->f_root.ptr = varlist->string; - f->f_root.len = strlen( varlist->string ); - - string_truncate( buf, 0 ); - path_build( f, buf, 1 ); - - if ( DEBUG_SEARCH ) - printf( "search %s: %s\n", target, buf->value ); - - ff = file_query(buf->value); - timestamp( buf->value, time ); - - b.binding = buf->value; - - if ( hashcheck( explicit_bindings, (HASHDATA**)&ba ) ) - { - if ( DEBUG_SEARCH ) - printf(" search %s: found explicitly located target %s\n", - target, ba->target); - if ( another_target ) - *another_target = ba->target; - found = 1; - break; - } - else if ( ff && ff->time ) - { - if ( !file || ff->is_file ) - { - found = 1; - break; - } - } - - varlist = list_next( varlist ); - } - } - - if ( !found ) - { - /* Look for the obvious */ - /* This is a questionable move. Should we look in the */ - /* obvious place if SEARCH is set? */ - - f->f_root.ptr = 0; - f->f_root.len = 0; - - string_truncate( buf, 0 ); - path_build( f, buf, 1 ); - - if ( DEBUG_SEARCH ) - printf( "search %s: %s\n", target, buf->value ); - - timestamp( buf->value, time ); - } - - boundname = newstr( buf->value ); - string_free( buf ); - - if ( explicitly_located ) - { - BINDING b; - BINDING * ba = &b; - b.binding = boundname; - b.target = target; - /* CONSIDER: we probably should issue a warning is another file - is explicitly bound to the same location. This might break - compatibility, though. */ - hashenter( explicit_bindings, (HASHDATA * *)&ba ); - } - - /* prepare a call to BINDRULE if the variable is set */ - call_bind_rule( target, boundname ); - - return boundname; -} |