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94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/*
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* Copyright 1993, 1995 Christopher Seiwald.
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*
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* This file is part of Jam - see jam.c for Copyright information.
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*/
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/* This file is ALSO:
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* Copyright 2001-2004 David Abrahams.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*
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* command.c - maintain lists of commands
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*/
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#include "jam.h"
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#include "lists.h"
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#include "parse.h"
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#include "variable.h"
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#include "rules.h"
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#include "command.h"
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#include <limits.h>
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#include <string.h>
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/*
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* cmd_new() - return a new CMD or 0 if too many args
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*/
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CMD * cmd_new( RULE * rule, LIST * targets, LIST * sources, LIST * shell )
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{
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CMD * cmd = (CMD *)BJAM_MALLOC( sizeof( CMD ) );
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/* Lift line-length limitation entirely when JAMSHELL is just "%". */
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int no_limit = ( shell && !strcmp(object_str(shell->value),"%") && !list_next(shell) );
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int max_line = MAXLINE;
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FRAME frame[1];
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cmd->rule = rule;
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cmd->shell = shell;
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cmd->next = 0;
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lol_init( &cmd->args );
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lol_add( &cmd->args, targets );
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lol_add( &cmd->args, sources );
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string_new( cmd->buf );
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frame_init( frame );
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frame->module = rule->module;
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lol_init( frame->args );
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lol_add( frame->args, list_copy( L0, targets ) );
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lol_add( frame->args, list_copy( L0, sources ) );
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function_run_actions( rule->actions->command, frame, stack_global(), cmd->buf );
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frame_free( frame );
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if ( !no_limit )
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{
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/* Bail if the result will not fit in MAXLINE. */
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char * s = cmd->buf->value;
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while ( *s )
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{
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size_t l = strcspn( s, "\n" );
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if ( l > MAXLINE )
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{
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/* We do not free targets/sources/shell if bailing. */
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cmd_free( cmd );
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return 0;
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}
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s += l;
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if ( *s )
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++s;
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}
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}
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return cmd;
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}
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/*
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* cmd_free() - free a CMD
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*/
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void cmd_free( CMD * cmd )
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{
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lol_free( &cmd->args );
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list_free( cmd->shell );
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string_free( cmd->buf );
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BJAM_FREE( (void *)cmd );
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}
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