| /* |
| * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc. |
| * |
| * This file is part of Jam - see jam.c for Copyright information. |
| */ |
| |
| #include "jam.h" |
| #include "builtins.h" |
| |
| #include "compile.h" |
| #include "constants.h" |
| #include "cwd.h" |
| #include "filesys.h" |
| #include "frames.h" |
| #include "hash.h" |
| #include "hdrmacro.h" |
| #include "lists.h" |
| #include "make.h" |
| #include "md5.h" |
| #include "native.h" |
| #include "object.h" |
| #include "parse.h" |
| #include "pathsys.h" |
| #include "rules.h" |
| #include "strings.h" |
| #include "subst.h" |
| #include "timestamp.h" |
| #include "variable.h" |
| |
| #include <ctype.h> |
| |
| #ifdef OS_NT |
| #include <windows.h> |
| #ifndef FSCTL_GET_REPARSE_POINT |
| /* MinGW's version of windows.h is missing this, so we need |
| * to include winioctl.h directly |
| */ |
| #include <winioctl.h> |
| #endif |
| #endif |
| |
| #if defined(USE_EXECUNIX) |
| # include <sys/types.h> |
| # include <sys/wait.h> |
| #else |
| /* |
| * NT does not have wait() and associated macros and uses the system() return |
| * value instead. Status code group are documented at: |
| * http://msdn.microsoft.com/en-gb/library/ff565436.aspx |
| */ |
| # define WIFEXITED(w) (((w) & 0XFFFFFF00) == 0) |
| # define WEXITSTATUS(w)(w) |
| #endif |
| |
| /* |
| * builtins.c - builtin jam rules |
| * |
| * External routines: |
| * load_builtins() - define builtin rules |
| * unknown_rule() - reports an unknown rule occurrence to the |
| * user and exits |
| * |
| * Internal routines: |
| * append_if_exists() - if file exists, append it to the list |
| * builtin_calc() - CALC rule |
| * builtin_delete_module() - DELETE_MODULE ( MODULE ? ) |
| * builtin_depends() - DEPENDS/INCLUDES rule |
| * builtin_echo() - ECHO rule |
| * builtin_exit() - EXIT rule |
| * builtin_export() - EXPORT ( MODULE ? : RULES * ) |
| * builtin_flags() - NOCARE, NOTFILE, TEMPORARY rule |
| * builtin_glob() - GLOB rule |
| * builtin_glob_recursive() - ??? |
| * builtin_hdrmacro() - ??? |
| * builtin_import() - IMPORT rule |
| * builtin_match() - MATCH rule, regexp matching |
| * builtin_rebuilds() - REBUILDS rule |
| * builtin_rulenames() - RULENAMES ( MODULE ? ) |
| * builtin_split_by_characters() - splits the given string into tokens |
| * builtin_varnames() - VARNAMES ( MODULE ? ) |
| * get_source_line() - get a frame's file and line number |
| * information |
| */ |
| |
| |
| /* |
| * compile_builtin() - define builtin rules |
| */ |
| |
| #define P0 (PARSE *)0 |
| #define C0 (OBJECT *)0 |
| |
| #if defined( OS_NT ) || defined( OS_CYGWIN ) |
| LIST * builtin_system_registry ( FRAME *, int ); |
| LIST * builtin_system_registry_names( FRAME *, int ); |
| #endif |
| |
| int glob( char const * s, char const * c ); |
| |
| void backtrace ( FRAME * ); |
| void backtrace_line ( FRAME * ); |
| void print_source_line( FRAME * ); |
| |
| |
| RULE * bind_builtin( char const * name_, LIST * (* f)( FRAME *, int flags ), |
| int flags, char const * * args ) |
| { |
| FUNCTION * func; |
| RULE * result; |
| OBJECT * name = object_new( name_ ); |
| |
| func = function_builtin( f, flags, args ); |
| |
| result = new_rule_body( root_module(), name, func, 1 ); |
| |
| function_free( func ); |
| |
| object_free( name ); |
| |
| return result; |
| } |
| |
| |
| RULE * duplicate_rule( char const * name_, RULE * other ) |
| { |
| OBJECT * name = object_new( name_ ); |
| RULE * result = import_rule( other, root_module(), name ); |
| object_free( name ); |
| return result; |
| } |
| |
| |
| /* |
| * load_builtins() - define builtin rules |
| */ |
| |
| void load_builtins() |
| { |
| duplicate_rule( "Always", |
| bind_builtin( "ALWAYS", |
| builtin_flags, T_FLAG_TOUCHED, 0 ) ); |
| |
| duplicate_rule( "Depends", |
| bind_builtin( "DEPENDS", |
| builtin_depends, 0, 0 ) ); |
| |
| duplicate_rule( "echo", |
| duplicate_rule( "Echo", |
| bind_builtin( "ECHO", |
| builtin_echo, 0, 0 ) ) ); |
| |
| { |
| char const * args[] = { "message", "*", ":", "result-value", "?", 0 }; |
| duplicate_rule( "exit", |
| duplicate_rule( "Exit", |
| bind_builtin( "EXIT", |
| builtin_exit, 0, args ) ) ); |
| } |
| |
| { |
| char const * args[] = { "directories", "*", ":", "patterns", "*", ":", |
| "case-insensitive", "?", 0 }; |
| duplicate_rule( "Glob", |
| bind_builtin( "GLOB", builtin_glob, 0, args ) ); |
| } |
| |
| { |
| char const * args[] = { "patterns", "*", 0 }; |
| bind_builtin( "GLOB-RECURSIVELY", |
| builtin_glob_recursive, 0, args ); |
| } |
| |
| duplicate_rule( "Includes", |
| bind_builtin( "INCLUDES", |
| builtin_depends, 1, 0 ) ); |
| |
| { |
| char const * args[] = { "targets", "*", ":", "targets-to-rebuild", "*", |
| 0 }; |
| bind_builtin( "REBUILDS", |
| builtin_rebuilds, 0, args ); |
| } |
| |
| duplicate_rule( "Leaves", |
| bind_builtin( "LEAVES", |
| builtin_flags, T_FLAG_LEAVES, 0 ) ); |
| |
| duplicate_rule( "Match", |
| bind_builtin( "MATCH", |
| builtin_match, 0, 0 ) ); |
| |
| { |
| char const * args[] = { "string", ":", "delimiters", 0 }; |
| bind_builtin( "SPLIT_BY_CHARACTERS", |
| builtin_split_by_characters, 0, args ); |
| } |
| |
| duplicate_rule( "NoCare", |
| bind_builtin( "NOCARE", |
| builtin_flags, T_FLAG_NOCARE, 0 ) ); |
| |
| duplicate_rule( "NOTIME", |
| duplicate_rule( "NotFile", |
| bind_builtin( "NOTFILE", |
| builtin_flags, T_FLAG_NOTFILE, 0 ) ) ); |
| |
| duplicate_rule( "NoUpdate", |
| bind_builtin( "NOUPDATE", |
| builtin_flags, T_FLAG_NOUPDATE, 0 ) ); |
| |
| duplicate_rule( "Temporary", |
| bind_builtin( "TEMPORARY", |
| builtin_flags, T_FLAG_TEMP, 0 ) ); |
| |
| bind_builtin( "ISFILE", |
| builtin_flags, T_FLAG_ISFILE, 0 ); |
| |
| duplicate_rule( "HdrMacro", |
| bind_builtin( "HDRMACRO", |
| builtin_hdrmacro, 0, 0 ) ); |
| |
| /* FAIL_EXPECTED is used to indicate that the result of a target build |
| * action should be inverted (ok <=> fail) this can be useful when |
| * performing test runs from Jamfiles. |
| */ |
| bind_builtin( "FAIL_EXPECTED", |
| builtin_flags, T_FLAG_FAIL_EXPECTED, 0 ); |
| |
| bind_builtin( "RMOLD", |
| builtin_flags, T_FLAG_RMOLD, 0 ); |
| |
| { |
| char const * args[] = { "targets", "*", 0 }; |
| bind_builtin( "UPDATE", |
| builtin_update, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "targets", "*", |
| ":", "log", "?", |
| ":", "ignore-minus-n", "?", |
| ":", "ignore-minus-q", "?", 0 }; |
| bind_builtin( "UPDATE_NOW", |
| builtin_update_now, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "string", "pattern", "replacements", "+", 0 }; |
| duplicate_rule( "subst", |
| bind_builtin( "SUBST", |
| builtin_subst, 0, args ) ); |
| } |
| |
| { |
| char const * args[] = { "module", "?", 0 }; |
| bind_builtin( "RULENAMES", |
| builtin_rulenames, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", "?", 0 }; |
| bind_builtin( "VARNAMES", |
| builtin_varnames, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", "?", 0 }; |
| bind_builtin( "DELETE_MODULE", |
| builtin_delete_module, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "source_module", "?", |
| ":", "source_rules", "*", |
| ":", "target_module", "?", |
| ":", "target_rules", "*", |
| ":", "localize", "?", 0 }; |
| bind_builtin( "IMPORT", |
| builtin_import, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", "?", ":", "rules", "*", 0 }; |
| bind_builtin( "EXPORT", |
| builtin_export, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "levels", "?", 0 }; |
| bind_builtin( "CALLER_MODULE", |
| builtin_caller_module, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "levels", "?", 0 }; |
| bind_builtin( "BACKTRACE", |
| builtin_backtrace, 0, args ); |
| } |
| |
| { |
| char const * args[] = { 0 }; |
| bind_builtin( "PWD", |
| builtin_pwd, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "modules_to_import", "+", |
| ":", "target_module", "?", 0 }; |
| bind_builtin( "IMPORT_MODULE", |
| builtin_import_module, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", "?", 0 }; |
| bind_builtin( "IMPORTED_MODULES", |
| builtin_imported_modules, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "instance_module", ":", "class_module", 0 }; |
| bind_builtin( "INSTANCE", |
| builtin_instance, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "sequence", "*", 0 }; |
| bind_builtin( "SORT", |
| builtin_sort, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "path_parts", "*", 0 }; |
| bind_builtin( "NORMALIZE_PATH", |
| builtin_normalize_path, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "args", "*", 0 }; |
| bind_builtin( "CALC", |
| builtin_calc, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", ":", "rule", 0 }; |
| bind_builtin( "NATIVE_RULE", |
| builtin_native_rule, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", ":", "rule", ":", "version", 0 }; |
| bind_builtin( "HAS_NATIVE_RULE", |
| builtin_has_native_rule, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "module", "*", 0 }; |
| bind_builtin( "USER_MODULE", |
| builtin_user_module, 0, args ); |
| } |
| |
| { |
| char const * args[] = { 0 }; |
| bind_builtin( "NEAREST_USER_LOCATION", |
| builtin_nearest_user_location, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "file", 0 }; |
| bind_builtin( "CHECK_IF_FILE", |
| builtin_check_if_file, 0, args ); |
| } |
| |
| #ifdef HAVE_PYTHON |
| { |
| char const * args[] = { "python-module", |
| ":", "function", |
| ":", "jam-module", |
| ":", "rule-name", 0 }; |
| bind_builtin( "PYTHON_IMPORT_RULE", |
| builtin_python_import_rule, 0, args ); |
| } |
| #endif |
| |
| # if defined( OS_NT ) || defined( OS_CYGWIN ) |
| { |
| char const * args[] = { "key_path", ":", "data", "?", 0 }; |
| bind_builtin( "W32_GETREG", |
| builtin_system_registry, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "key_path", ":", "result-type", 0 }; |
| bind_builtin( "W32_GETREGNAMES", |
| builtin_system_registry_names, 0, args ); |
| } |
| # endif |
| |
| { |
| char const * args[] = { "command", ":", "*", 0 }; |
| duplicate_rule( "SHELL", |
| bind_builtin( "COMMAND", |
| builtin_shell, 0, args ) ); |
| } |
| |
| { |
| char const * args[] = { "string", 0 }; |
| bind_builtin( "MD5", |
| builtin_md5, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "name", ":", "mode", 0 }; |
| bind_builtin( "FILE_OPEN", |
| builtin_file_open, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "string", ":", "width", 0 }; |
| bind_builtin( "PAD", |
| builtin_pad, 0, args ); |
| } |
| |
| { |
| char const * args[] = { "targets", "*", 0 }; |
| bind_builtin( "PRECIOUS", |
| builtin_precious, 0, args ); |
| } |
| |
| { |
| char const * args [] = { 0 }; |
| bind_builtin( "SELF_PATH", builtin_self_path, 0, args ); |
| } |
| |
| { |
| char const * args [] = { "path", 0 }; |
| bind_builtin( "MAKEDIR", builtin_makedir, 0, args ); |
| } |
| |
| { |
| const char * args [] = { "path", 0 }; |
| bind_builtin( "READLINK", builtin_readlink, 0, args ); |
| } |
| |
| /* Initialize builtin modules. */ |
| init_set(); |
| init_path(); |
| init_regex(); |
| init_property_set(); |
| init_sequence(); |
| init_order(); |
| } |
| |
| |
| /* |
| * builtin_calc() - CALC rule |
| * |
| * Performs simple mathematical operations on two arguments. |
| */ |
| |
| LIST * builtin_calc( FRAME * frame, int flags ) |
| { |
| LIST * arg = lol_get( frame->args, 0 ); |
| |
| LIST * result = L0; |
| long lhs_value; |
| long rhs_value; |
| long result_value; |
| char buffer[ 16 ]; |
| char const * lhs; |
| char const * op; |
| char const * rhs; |
| LISTITER iter = list_begin( arg ); |
| LISTITER const end = list_end( arg ); |
| |
| if ( iter == end ) return L0; |
| lhs = object_str( list_item( iter ) ); |
| |
| iter = list_next( iter ); |
| if ( iter == end ) return L0; |
| op = object_str( list_item( iter ) ); |
| |
| iter = list_next( iter ); |
| if ( iter == end ) return L0; |
| rhs = object_str( list_item( iter ) ); |
| |
| lhs_value = atoi( lhs ); |
| rhs_value = atoi( rhs ); |
| |
| if ( !strcmp( "+", op ) ) |
| result_value = lhs_value + rhs_value; |
| else if ( !strcmp( "-", op ) ) |
| result_value = lhs_value - rhs_value; |
| else |
| return L0; |
| |
| sprintf( buffer, "%ld", result_value ); |
| result = list_push_back( result, object_new( buffer ) ); |
| return result; |
| } |
| |
| |
| /* |
| * builtin_depends() - DEPENDS/INCLUDES rule |
| * |
| * The DEPENDS/INCLUDES builtin rule appends each of the listed sources on the |
| * dependency/includes list of each of the listed targets. It binds both the |
| * targets and sources as TARGETs. |
| */ |
| |
| LIST * builtin_depends( FRAME * frame, int flags ) |
| { |
| LIST * const targets = lol_get( frame->args, 0 ); |
| LIST * const sources = lol_get( frame->args, 1 ); |
| |
| LISTITER iter = list_begin( targets ); |
| LISTITER end = list_end( targets ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| TARGET * const t = bindtarget( list_item( iter ) ); |
| |
| if ( flags ) |
| target_include_many( t, sources ); |
| else |
| t->depends = targetlist( t->depends, sources ); |
| } |
| |
| /* Enter reverse links */ |
| iter = list_begin( sources ); |
| end = list_end( sources ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| TARGET * const s = bindtarget( list_item( iter ) ); |
| if ( flags ) |
| { |
| LISTITER t_iter = list_begin( targets ); |
| LISTITER const t_end = list_end( targets ); |
| for ( ; t_iter != t_end; t_iter = list_next( t_iter ) ) |
| s->dependants = targetentry( s->dependants, bindtarget( |
| list_item( t_iter ) )->includes ); |
| } |
| else |
| s->dependants = targetlist( s->dependants, targets ); |
| } |
| |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_rebuilds() - REBUILDS rule |
| * |
| * Appends each of the rebuild-targets listed in its second argument to the |
| * rebuilds list for each of the targets listed in its first argument. |
| */ |
| |
| LIST * builtin_rebuilds( FRAME * frame, int flags ) |
| { |
| LIST * targets = lol_get( frame->args, 0 ); |
| LIST * rebuilds = lol_get( frame->args, 1 ); |
| LISTITER iter = list_begin( targets ); |
| LISTITER const end = list_end( targets ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| TARGET * const t = bindtarget( list_item( iter ) ); |
| t->rebuilds = targetlist( t->rebuilds, rebuilds ); |
| } |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_echo() - ECHO rule |
| * |
| * Echoes the targets to the user. No other actions are taken. |
| */ |
| |
| LIST * builtin_echo( FRAME * frame, int flags ) |
| { |
| list_print( lol_get( frame->args, 0 ) ); |
| printf( "\n" ); |
| fflush( stdout ); |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_exit() - EXIT rule |
| * |
| * Echoes the targets to the user and exits the program with a failure status. |
| */ |
| |
| LIST * builtin_exit( FRAME * frame, int flags ) |
| { |
| LIST * const code = lol_get( frame->args, 1 ); |
| list_print( lol_get( frame->args, 0 ) ); |
| printf( "\n" ); |
| if ( !list_empty( code ) ) |
| exit( atoi( object_str( list_front( code ) ) ) ); |
| else |
| exit( EXITBAD ); /* yeech */ |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_flags() - NOCARE, NOTFILE, TEMPORARY rule |
| * |
| * Marks the target with the appropriate flag, for use by make0(). It binds each |
| * target as a TARGET. |
| */ |
| |
| LIST * builtin_flags( FRAME * frame, int flags ) |
| { |
| LIST * const targets = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( targets ); |
| LISTITER const end = list_end( targets ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| bindtarget( list_item( iter ) )->flags |= flags; |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_glob() - GLOB rule |
| */ |
| |
| struct globbing |
| { |
| LIST * patterns; |
| LIST * results; |
| LIST * case_insensitive; |
| }; |
| |
| |
| static void downcase_inplace( char * p ) |
| { |
| for ( ; *p; ++p ) |
| *p = tolower( *p ); |
| } |
| |
| |
| static void builtin_glob_back( void * closure, OBJECT * file, int status, |
| timestamp const * const time ) |
| { |
| PROFILE_ENTER( BUILTIN_GLOB_BACK ); |
| |
| struct globbing * const globbing = (struct globbing *)closure; |
| PATHNAME f; |
| string buf[ 1 ]; |
| LISTITER iter; |
| LISTITER end; |
| |
| /* Null out directory for matching. We wish we had file_dirscan() pass up a |
| * PATHNAME. |
| */ |
| path_parse( object_str( file ), &f ); |
| f.f_dir.len = 0; |
| |
| /* For globbing, we unconditionally ignore current and parent directory |
| * items. Since these items always exist, there is no reason why caller of |
| * GLOB would want to see them. We could also change file_dirscan(), but |
| * then paths with embedded "." and ".." would not work anywhere. |
| */ |
| if ( !strcmp( f.f_base.ptr, "." ) || !strcmp( f.f_base.ptr, ".." ) ) |
| { |
| PROFILE_EXIT( BUILTIN_GLOB_BACK ); |
| return; |
| } |
| |
| string_new( buf ); |
| path_build( &f, buf ); |
| |
| if ( globbing->case_insensitive ) |
| downcase_inplace( buf->value ); |
| |
| iter = list_begin( globbing->patterns ); |
| end = list_end( globbing->patterns ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| if ( !glob( object_str( list_item( iter ) ), buf->value ) ) |
| { |
| globbing->results = list_push_back( globbing->results, object_copy( |
| file ) ); |
| break; |
| } |
| } |
| |
| string_free( buf ); |
| |
| PROFILE_EXIT( BUILTIN_GLOB_BACK ); |
| } |
| |
| |
| static LIST * downcase_list( LIST * in ) |
| { |
| LIST * result = L0; |
| LISTITER iter = list_begin( in ); |
| LISTITER const end = list_end( in ); |
| |
| string s[ 1 ]; |
| string_new( s ); |
| |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| string_append( s, object_str( list_item( iter ) ) ); |
| downcase_inplace( s->value ); |
| result = list_push_back( result, object_new( s->value ) ); |
| string_truncate( s, 0 ); |
| } |
| |
| string_free( s ); |
| return result; |
| } |
| |
| |
| LIST * builtin_glob( FRAME * frame, int flags ) |
| { |
| LIST * const l = lol_get( frame->args, 0 ); |
| LIST * const r = lol_get( frame->args, 1 ); |
| |
| LISTITER iter; |
| LISTITER end; |
| struct globbing globbing; |
| |
| globbing.results = L0; |
| globbing.patterns = r; |
| |
| globbing.case_insensitive = |
| # if defined( OS_NT ) || defined( OS_CYGWIN ) |
| l; /* Always case-insensitive if any files can be found. */ |
| # else |
| lol_get( frame->args, 2 ); |
| # endif |
| |
| if ( globbing.case_insensitive ) |
| globbing.patterns = downcase_list( r ); |
| |
| iter = list_begin( l ); |
| end = list_end( l ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| file_dirscan( list_item( iter ), builtin_glob_back, &globbing ); |
| |
| if ( globbing.case_insensitive ) |
| list_free( globbing.patterns ); |
| |
| return globbing.results; |
| } |
| |
| |
| static int has_wildcards( char const * const str ) |
| { |
| return str[ strcspn( str, "[]*?" ) ] ? 1 : 0; |
| } |
| |
| |
| /* |
| * append_if_exists() - if file exists, append it to the list |
| */ |
| |
| static LIST * append_if_exists( LIST * list, OBJECT * file ) |
| { |
| file_info_t * info = file_query( file ); |
| return info |
| ? list_push_back( list, object_copy( info->name ) ) |
| : list ; |
| } |
| |
| |
| LIST * glob1( OBJECT * dirname, OBJECT * pattern ) |
| { |
| LIST * const plist = list_new( object_copy( pattern ) ); |
| struct globbing globbing; |
| |
| globbing.results = L0; |
| globbing.patterns = plist; |
| |
| globbing.case_insensitive |
| # if defined( OS_NT ) || defined( OS_CYGWIN ) |
| = plist; /* always case-insensitive if any files can be found */ |
| # else |
| = L0; |
| # endif |
| |
| if ( globbing.case_insensitive ) |
| globbing.patterns = downcase_list( plist ); |
| |
| file_dirscan( dirname, builtin_glob_back, &globbing ); |
| |
| if ( globbing.case_insensitive ) |
| list_free( globbing.patterns ); |
| |
| list_free( plist ); |
| |
| return globbing.results; |
| } |
| |
| |
| LIST * glob_recursive( char const * pattern ) |
| { |
| LIST * result = L0; |
| |
| /* Check if there's metacharacters in pattern */ |
| if ( !has_wildcards( pattern ) ) |
| { |
| /* No metacharacters. Check if the path exists. */ |
| OBJECT * const p = object_new( pattern ); |
| result = append_if_exists( result, p ); |
| object_free( p ); |
| } |
| else |
| { |
| /* Have metacharacters in the pattern. Split into dir/name. */ |
| PATHNAME path[ 1 ]; |
| path_parse( pattern, path ); |
| |
| if ( path->f_dir.ptr ) |
| { |
| LIST * dirs = L0; |
| string dirname[ 1 ]; |
| string basename[ 1 ]; |
| string_new( dirname ); |
| string_new( basename ); |
| |
| string_append_range( dirname, path->f_dir.ptr, |
| path->f_dir.ptr + path->f_dir.len ); |
| |
| path->f_grist.ptr = 0; |
| path->f_grist.len = 0; |
| path->f_dir.ptr = 0; |
| path->f_dir.len = 0; |
| path_build( path, basename ); |
| |
| dirs = has_wildcards( dirname->value ) |
| ? glob_recursive( dirname->value ) |
| : list_push_back( dirs, object_new( dirname->value ) ); |
| |
| if ( has_wildcards( basename->value ) ) |
| { |
| OBJECT * const b = object_new( basename->value ); |
| LISTITER iter = list_begin( dirs ); |
| LISTITER const end = list_end( dirs ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| result = list_append( result, glob1( list_item( iter ), b ) |
| ); |
| object_free( b ); |
| } |
| else |
| { |
| LISTITER iter = list_begin( dirs ); |
| LISTITER const end = list_end( dirs ); |
| string file_string[ 1 ]; |
| string_new( file_string ); |
| |
| /* No wildcard in basename. */ |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| OBJECT * p; |
| path->f_dir.ptr = object_str( list_item( iter ) ); |
| path->f_dir.len = strlen( object_str( list_item( iter ) ) ); |
| path_build( path, file_string ); |
| |
| p = object_new( file_string->value ); |
| |
| result = append_if_exists( result, p ); |
| |
| object_free( p ); |
| |
| string_truncate( file_string, 0 ); |
| } |
| |
| string_free( file_string ); |
| } |
| |
| string_free( dirname ); |
| string_free( basename ); |
| |
| list_free( dirs ); |
| } |
| else |
| { |
| /* No directory, just a pattern. */ |
| OBJECT * const p = object_new( pattern ); |
| result = list_append( result, glob1( constant_dot, p ) ); |
| object_free( p ); |
| } |
| } |
| |
| return result; |
| } |
| |
| |
| /* |
| * builtin_glob_recursive() - ??? |
| */ |
| |
| LIST * builtin_glob_recursive( FRAME * frame, int flags ) |
| { |
| LIST * result = L0; |
| LIST * const l = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( l ); |
| LISTITER const end = list_end( l ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| result = list_append( result, glob_recursive( object_str( list_item( |
| iter ) ) ) ); |
| return result; |
| } |
| |
| |
| /* |
| * builtin_match() - MATCH rule, regexp matching |
| */ |
| |
| LIST * builtin_match( FRAME * frame, int flags ) |
| { |
| LIST * l; |
| LIST * r; |
| LIST * result = L0; |
| LISTITER l_iter; |
| LISTITER l_end; |
| LISTITER r_iter; |
| LISTITER r_end; |
| |
| string buf[ 1 ]; |
| string_new( buf ); |
| |
| /* For each pattern */ |
| |
| l = lol_get( frame->args, 0 ); |
| l_iter = list_begin( l ); |
| l_end = list_end( l ); |
| for ( ; l_iter != l_end; l_iter = list_next( l_iter ) ) |
| { |
| /* Result is cached and intentionally never freed. */ |
| regexp * re = regex_compile( list_item( l_iter ) ); |
| |
| /* For each string to match against. */ |
| r = lol_get( frame->args, 1 ); |
| r_iter = list_begin( r ); |
| r_end = list_end( r ); |
| for ( ; r_iter != r_end; r_iter = list_next( r_iter ) ) |
| { |
| if ( regexec( re, object_str( list_item( r_iter ) ) ) ) |
| { |
| int i; |
| int top; |
| |
| /* Find highest parameter */ |
| |
| for ( top = NSUBEXP; top-- > 1; ) |
| if ( re->startp[ top ] ) |
| break; |
| |
| /* And add all parameters up to highest onto list. */ |
| /* Must have parameters to have results! */ |
| for ( i = 1; i <= top; ++i ) |
| { |
| string_append_range( buf, re->startp[ i ], re->endp[ i ] ); |
| result = list_push_back( result, object_new( buf->value ) ); |
| string_truncate( buf, 0 ); |
| } |
| } |
| } |
| } |
| |
| string_free( buf ); |
| return result; |
| } |
| |
| |
| /* |
| * builtin_split_by_characters() - splits the given string into tokens |
| */ |
| |
| LIST * builtin_split_by_characters( FRAME * frame, int flags ) |
| { |
| LIST * l1 = lol_get( frame->args, 0 ); |
| LIST * l2 = lol_get( frame->args, 1 ); |
| |
| LIST * result = L0; |
| |
| string buf[ 1 ]; |
| |
| char const * delimiters = object_str( list_front( l2 ) ); |
| char * t; |
| |
| string_copy( buf, object_str( list_front( l1 ) ) ); |
| |
| t = strtok( buf->value, delimiters ); |
| while ( t ) |
| { |
| result = list_push_back( result, object_new( t ) ); |
| t = strtok( NULL, delimiters ); |
| } |
| |
| string_free( buf ); |
| |
| return result; |
| } |
| |
| |
| /* |
| * builtin_hdrmacro() - ??? |
| */ |
| |
| LIST * builtin_hdrmacro( FRAME * frame, int flags ) |
| { |
| LIST * const l = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( l ); |
| LISTITER const end = list_end( l ); |
| |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| TARGET * const t = bindtarget( list_item( iter ) ); |
| |
| /* Scan file for header filename macro definitions. */ |
| if ( DEBUG_HEADER ) |
| printf( "scanning '%s' for header file macro definitions\n", |
| object_str( list_item( iter ) ) ); |
| |
| macro_headers( t ); |
| } |
| |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_rulenames() - RULENAMES ( MODULE ? ) |
| * |
| * Returns a list of the non-local rule names in the given MODULE. If MODULE is |
| * not supplied, returns the list of rule names in the global module. |
| */ |
| |
| static void add_rule_name( void * r_, void * result_ ) |
| { |
| RULE * const r = (RULE *)r_; |
| LIST * * const result = (LIST * *)result_; |
| if ( r->exported ) |
| *result = list_push_back( *result, object_copy( r->name ) ); |
| } |
| |
| |
| LIST * builtin_rulenames( FRAME * frame, int flags ) |
| { |
| LIST * arg0 = lol_get( frame->args, 0 ); |
| LIST * result = L0; |
| module_t * const source_module = bindmodule( list_empty( arg0 ) |
| ? 0 |
| : list_front( arg0 ) ); |
| |
| if ( source_module->rules ) |
| hashenumerate( source_module->rules, add_rule_name, &result ); |
| return result; |
| } |
| |
| |
| /* |
| * builtin_varnames() - VARNAMES ( MODULE ? ) |
| * |
| * Returns a list of the variable names in the given MODULE. If MODULE is not |
| * supplied, returns the list of variable names in the global module. |
| */ |
| |
| /* helper function for builtin_varnames(), below. Used with hashenumerate, will |
| * prepend the key of each element to the list |
| */ |
| static void add_hash_key( void * np, void * result_ ) |
| { |
| LIST * * result = (LIST * *)result_; |
| *result = list_push_back( *result, object_copy( *(OBJECT * *)np ) ); |
| } |
| |
| |
| LIST * builtin_varnames( FRAME * frame, int flags ) |
| { |
| LIST * arg0 = lol_get( frame->args, 0 ); |
| LIST * result = L0; |
| module_t * source_module = bindmodule( list_empty( arg0 ) |
| ? 0 |
| : list_front( arg0 ) ); |
| |
| struct hash * const vars = source_module->variables; |
| if ( vars ) |
| hashenumerate( vars, add_hash_key, &result ); |
| return result; |
| } |
| |
| |
| /* |
| * builtin_delete_module() - DELETE_MODULE ( MODULE ? ) |
| * |
| * Clears all rules and variables from the given module. |
| */ |
| |
| LIST * builtin_delete_module( FRAME * frame, int flags ) |
| { |
| LIST * const arg0 = lol_get( frame->args, 0 ); |
| module_t * const source_module = bindmodule( list_empty( arg0 ) ? 0 : |
| list_front( arg0 ) ); |
| delete_module( source_module ); |
| return L0; |
| } |
| |
| |
| /* |
| * unknown_rule() - reports an unknown rule occurrence to the user and exits |
| */ |
| |
| void unknown_rule( FRAME * frame, char const * key, module_t * module, |
| OBJECT * rule_name ) |
| { |
| backtrace_line( frame->prev ); |
| if ( key ) |
| printf("%s error", key); |
| else |
| printf("ERROR"); |
| printf( ": rule \"%s\" unknown in ", object_str( rule_name ) ); |
| if ( module->name ) |
| printf( "module \"%s\".\n", object_str( module->name ) ); |
| else |
| printf( "root module.\n" ); |
| backtrace( frame->prev ); |
| exit( 1 ); |
| } |
| |
| |
| /* |
| * builtin_import() - IMPORT rule |
| * |
| * IMPORT |
| * ( |
| * SOURCE_MODULE ? : |
| * SOURCE_RULES * : |
| * TARGET_MODULE ? : |
| * TARGET_RULES * : |
| * LOCALIZE ? |
| * ) |
| * |
| * Imports rules from the SOURCE_MODULE into the TARGET_MODULE as local rules. |
| * If either SOURCE_MODULE or TARGET_MODULE is not supplied, it refers to the |
| * global module. SOURCE_RULES specifies which rules from the SOURCE_MODULE to |
| * import; TARGET_RULES specifies the names to give those rules in |
| * TARGET_MODULE. If SOURCE_RULES contains a name that does not correspond to |
| * a rule in SOURCE_MODULE, or if it contains a different number of items than |
| * TARGET_RULES, an error is issued. If LOCALIZE is specified, the rules will be |
| * executed in TARGET_MODULE, with corresponding access to its module local |
| * variables. |
| */ |
| |
| LIST * builtin_import( FRAME * frame, int flags ) |
| { |
| LIST * source_module_list = lol_get( frame->args, 0 ); |
| LIST * source_rules = lol_get( frame->args, 1 ); |
| LIST * target_module_list = lol_get( frame->args, 2 ); |
| LIST * target_rules = lol_get( frame->args, 3 ); |
| LIST * localize = lol_get( frame->args, 4 ); |
| |
| module_t * target_module = bindmodule( list_empty( target_module_list ) |
| ? 0 |
| : list_front( target_module_list ) ); |
| module_t * source_module = bindmodule( list_empty( source_module_list ) |
| ? 0 |
| : list_front( source_module_list ) ); |
| |
| LISTITER source_iter = list_begin( source_rules ); |
| LISTITER const source_end = list_end( source_rules ); |
| LISTITER target_iter = list_begin( target_rules ); |
| LISTITER const target_end = list_end( target_rules ); |
| |
| for ( ; |
| source_iter != source_end && target_iter != target_end; |
| source_iter = list_next( source_iter ), |
| target_iter = list_next( target_iter ) ) |
| { |
| RULE * r; |
| RULE * imported; |
| |
| if ( !source_module->rules || !(r = (RULE *)hash_find( |
| source_module->rules, list_item( source_iter ) ) ) ) |
| unknown_rule( frame, "IMPORT", source_module, list_item( source_iter |
| ) ); |
| |
| imported = import_rule( r, target_module, list_item( target_iter ) ); |
| if ( !list_empty( localize ) ) |
| rule_localize( imported, target_module ); |
| /* This rule is really part of some other module. Just refer to it here, |
| * but do not let it out. |
| */ |
| imported->exported = 0; |
| } |
| |
| if ( source_iter != source_end || target_iter != target_end ) |
| { |
| backtrace_line( frame->prev ); |
| printf( "import error: length of source and target rule name lists " |
| "don't match!\n" ); |
| printf( " source: " ); |
| list_print( source_rules ); |
| printf( "\n target: " ); |
| list_print( target_rules ); |
| printf( "\n" ); |
| backtrace( frame->prev ); |
| exit( 1 ); |
| } |
| |
| return L0; |
| } |
| |
| |
| /* |
| * builtin_export() - EXPORT ( MODULE ? : RULES * ) |
| * |
| * The EXPORT rule marks RULES from the SOURCE_MODULE as non-local (and thus |
| * exportable). If an element of RULES does not name a rule in MODULE, an error |
| * is issued. |
| */ |
| |
| LIST * builtin_export( FRAME * frame, int flags ) |
| { |
| LIST * const module_list = lol_get( frame->args, 0 ); |
| LIST * const rules = lol_get( frame->args, 1 ); |
| module_t * const m = bindmodule( list_empty( module_list ) ? 0 : list_front( |
| module_list ) ); |
| |
| LISTITER iter = list_begin( rules ); |
| LISTITER const end = list_end( rules ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| RULE * r; |
| if ( !m->rules || !( r = (RULE *)hash_find( m->rules, list_item( iter ) |
| ) ) ) |
| unknown_rule( frame, "EXPORT", m, list_item( iter ) ); |
| r->exported = 1; |
| } |
| return L0; |
| } |
| |
| |
| /* |
| * get_source_line() - get a frame's file and line number information |
| * |
| * This is the execution traceback information to be indicated for in debug |
| * output or an error backtrace. |
| */ |
| |
| static void get_source_line( FRAME * frame, char const * * file, int * line ) |
| { |
| if ( frame->file ) |
| { |
| char const * f = object_str( frame->file ); |
| int l = frame->line; |
| if ( !strcmp( f, "+" ) ) |
| { |
| f = "jambase.c"; |
| l += 3; |
| } |
| *file = f; |
| *line = l; |
| } |
| else |
| { |
| *file = "(builtin)"; |
| *line = -1; |
| } |
| } |
| |
| |
| void print_source_line( FRAME * frame ) |
| { |
| char const * file; |
| int line; |
| get_source_line( frame, &file, &line ); |
| if ( line < 0 ) |
| printf( "(builtin):" ); |
| else |
| printf( "%s:%d:", file, line ); |
| } |
| |
| |
| /* |
| * backtrace_line() - print a single line of error backtrace for the given |
| * frame. |
| */ |
| |
| void backtrace_line( FRAME * frame ) |
| { |
| if ( frame == 0 ) |
| { |
| printf( "(no frame):" ); |
| } |
| else |
| { |
| print_source_line( frame ); |
| printf( " in %s\n", frame->rulename ); |
| } |
| } |
| |
| |
| /* |
| * backtrace() - Print the entire backtrace from the given frame to the Jambase |
| * which invoked it. |
| */ |
| |
| void backtrace( FRAME * frame ) |
| { |
| if ( !frame ) return; |
| while ( ( frame = frame->prev ) ) |
| backtrace_line( frame ); |
| } |
| |
| |
| /* |
| * builtin_backtrace() - A Jam version of the backtrace function, taking no |
| * arguments and returning a list of quadruples: FILENAME LINE MODULE. RULENAME |
| * describing each frame. Note that the module-name is always followed by a |
| * period. |
| */ |
| |
| LIST * builtin_backtrace( FRAME * frame, int flags ) |
| { |
| LIST * const levels_arg = lol_get( frame->args, 0 ); |
| int levels = list_empty( levels_arg ) |
| ? (int)( (unsigned int)(-1) >> 1 ) |
| : atoi( object_str( list_front( levels_arg ) ) ); |
| |
| LIST * result = L0; |
| for ( ; ( frame = frame->prev ) && levels; --levels ) |
| { |
| char const * file; |
| int line; |
| char buf[ 32 ]; |
| string module_name[ 1 ]; |
| get_source_line( frame, &file, &line ); |
| sprintf( buf, "%d", line ); |
| string_new( module_name ); |
| if ( frame->module->name ) |
| { |
| string_append( module_name, object_str( frame->module->name ) ); |
| string_append( module_name, "." ); |
| } |
| result = list_push_back( result, object_new( file ) ); |
| result = list_push_back( result, object_new( buf ) ); |
| result = list_push_back( result, object_new( module_name->value ) ); |
| result = list_push_back( result, object_new( frame->rulename ) ); |
| string_free( module_name ); |
| } |
| return result; |
| } |
| |
| |
| /* |
| * builtin_caller_module() - CALLER_MODULE ( levels ? ) |
| * |
| * If levels is not supplied, returns the name of the module of the rule which |
| * called the one calling this one. If levels is supplied, it is interpreted as |
| * an integer specifying a number of additional levels of call stack to traverse |
| * in order to locate the module in question. If no such module exists, returns |
| * the empty list. Also returns the empty list when the module in question is |
| * the global module. This rule is needed for implementing module import |
| * behavior. |
| */ |
| |
| LIST * builtin_caller_module( FRAME * frame, int flags ) |
| { |
| LIST * const levels_arg = lol_get( frame->args, 0 ); |
| int const levels = list_empty( levels_arg ) |
| ? 0 |
| : atoi( object_str( list_front( levels_arg ) ) ); |
| |
| int i; |
| for ( i = 0; ( i < levels + 2 ) && frame->prev; ++i ) |
| frame = frame->prev; |
| |
| return frame->module == root_module() |
| ? L0 |
| : list_new( object_copy( frame->module->name ) ); |
| } |
| |
| |
| /* |
| * Return the current working directory. |
| * |
| * Usage: pwd = [ PWD ] ; |
| */ |
| |
| LIST * builtin_pwd( FRAME * frame, int flags ) |
| { |
| return list_new( object_copy( cwd() ) ); |
| } |
| |
| |
| /* |
| * Adds targets to the list of target that jam will attempt to update. |
| */ |
| |
| LIST * builtin_update( FRAME * frame, int flags ) |
| { |
| LIST * result = list_copy( targets_to_update() ); |
| LIST * arg1 = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( arg1 ), end = list_end( arg1 ); |
| clear_targets_to_update(); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| mark_target_for_updating( object_copy( list_item( iter ) ) ); |
| return result; |
| } |
| |
| extern int anyhow; |
| int last_update_now_status; |
| |
| /* Takes a list of target names and immediately updates them. |
| * |
| * Parameters: |
| * 1. Target list. |
| * 2. Optional file descriptor (converted to a string) for a log file where all |
| * the related build output should be redirected. |
| * 3. If specified, makes the build temporarily disable the -n option, i.e. |
| * forces all needed out-of-date targets to be rebuilt. |
| * 4. If specified, makes the build temporarily disable the -q option, i.e. |
| * forces the build to continue even if one of the targets fails to build. |
| */ |
| LIST * builtin_update_now( FRAME * frame, int flags ) |
| { |
| LIST * targets = lol_get( frame->args, 0 ); |
| LIST * log = lol_get( frame->args, 1 ); |
| LIST * force = lol_get( frame->args, 2 ); |
| LIST * continue_ = lol_get( frame->args, 3 ); |
| int status; |
| int original_stdout = 0; |
| int original_stderr = 0; |
| int original_noexec = 0; |
| int original_quitquick = 0; |
| |
| if ( !list_empty( log ) ) |
| { |
| /* Temporarily redirect stdout and stderr to the given log file. */ |
| int const fd = atoi( object_str( list_front( log ) ) ); |
| original_stdout = dup( 0 ); |
| original_stderr = dup( 1 ); |
| dup2( fd, 0 ); |
| dup2( fd, 1 ); |
| } |
| |
| if ( !list_empty( force ) ) |
| { |
| original_noexec = globs.noexec; |
| globs.noexec = 0; |
| } |
| |
| if ( !list_empty( continue_ ) ) |
| { |
| original_quitquick = globs.quitquick; |
| globs.quitquick = 0; |
| } |
| |
| status = make( targets, anyhow ); |
| |
| if ( !list_empty( force ) ) |
| { |
| globs.noexec = original_noexec; |
| } |
| |
| if ( !list_empty( continue_ ) ) |
| { |
| globs.quitquick = original_quitquick; |
| } |
| |
| if ( !list_empty( log ) ) |
| { |
| /* Flush whatever stdio might have buffered, while descriptions 0 and 1 |
| * still refer to the log file. |
| */ |
| fflush( stdout ); |
| fflush( stderr ); |
| dup2( original_stdout, 0 ); |
| dup2( original_stderr, 1 ); |
| close( original_stdout ); |
| close( original_stderr ); |
| } |
| |
| last_update_now_status = status; |
| |
| return status ? L0 : list_new( object_copy( constant_ok ) ); |
| } |
| |
| |
| LIST * builtin_import_module( FRAME * frame, int flags ) |
| { |
| LIST * const arg1 = lol_get( frame->args, 0 ); |
| LIST * const arg2 = lol_get( frame->args, 1 ); |
| module_t * const m = list_empty( arg2 ) |
| ? root_module() |
| : bindmodule( list_front( arg2 ) ); |
| import_module( arg1, m ); |
| return L0; |
| } |
| |
| |
| LIST * builtin_imported_modules( FRAME * frame, int flags ) |
| { |
| LIST * const arg0 = lol_get( frame->args, 0 ); |
| OBJECT * const module = list_empty( arg0 ) ? 0 : list_front( arg0 ); |
| return imported_modules( bindmodule( module ) ); |
| } |
| |
| |
| LIST * builtin_instance( FRAME * frame, int flags ) |
| { |
| LIST * arg1 = lol_get( frame->args, 0 ); |
| LIST * arg2 = lol_get( frame->args, 1 ); |
| module_t * const instance = bindmodule( list_front( arg1 ) ); |
| module_t * const class_module = bindmodule( list_front( arg2 ) ); |
| instance->class_module = class_module; |
| module_set_fixed_variables( instance, class_module->num_fixed_variables ); |
| return L0; |
| } |
| |
| |
| LIST * builtin_sort( FRAME * frame, int flags ) |
| { |
| return list_sort( lol_get( frame->args, 0 ) ); |
| } |
| |
| |
| LIST * builtin_normalize_path( FRAME * frame, int flags ) |
| { |
| LIST * arg = lol_get( frame->args, 0 ); |
| |
| /* First, we iterate over all '/'-separated elements, starting from the end |
| * of string. If we see a '..', we remove a preceeding path element. If we |
| * see '.', we remove it. Removal is done by overwriting data using '\1' |
| * characters. After the whole string has been processed, we do a second |
| * pass, removing any entered '\1' characters. |
| */ |
| |
| string in[ 1 ]; |
| string out[ 1 ]; |
| /* Last character of the part of string still to be processed. */ |
| char * end; |
| /* Working pointer. */ |
| char * current; |
| /* Number of '..' elements seen and not processed yet. */ |
| int dotdots = 0; |
| int rooted = 0; |
| OBJECT * result = 0; |
| LISTITER arg_iter = list_begin( arg ); |
| LISTITER arg_end = list_end( arg ); |
| |
| /* Make a copy of input: we should not change it. Prepend a '/' before it as |
| * a guard for the algorithm later on and remember whether it was originally |
| * rooted or not. |
| */ |
| string_new( in ); |
| string_push_back( in, '/' ); |
| for ( ; arg_iter != arg_end; arg_iter = list_next( arg_iter ) ) |
| { |
| if ( object_str( list_item( arg_iter ) )[ 0 ] != '\0' ) |
| { |
| if ( in->size == 1 ) |
| rooted = ( object_str( list_item( arg_iter ) )[ 0 ] == '/' ) || |
| ( object_str( list_item( arg_iter ) )[ 0 ] == '\\' ); |
| else |
| string_append( in, "/" ); |
| string_append( in, object_str( list_item( arg_iter ) ) ); |
| } |
| } |
| |
| /* Convert \ into /. On Windows, paths using / and \ are equivalent, and we |
| * want this function to obtain a canonic representation. |
| */ |
| for ( current = in->value, end = in->value + in->size; |
| current < end; ++current ) |
| if ( *current == '\\' ) |
| *current = '/'; |
| |
| /* Now we remove any extra path elements by overwriting them with '\1' |
| * characters and cound how many more unused '..' path elements there are |
| * remaining. Note that each remaining path element with always starts with |
| * a '/' character. |
| */ |
| for ( end = in->value + in->size - 1; end >= in->value; ) |
| { |
| /* Set 'current' to the next occurence of '/', which always exists. */ |
| for ( current = end; *current != '/'; --current ); |
| |
| if ( current == end ) |
| { |
| /* Found a trailing or duplicate '/'. Remove it. */ |
| *current = '\1'; |
| } |
| else if ( ( end - current == 1 ) && ( *( current + 1 ) == '.' ) ) |
| { |
| /* Found '/.'. Remove them all. */ |
| *current = '\1'; |
| *(current + 1) = '\1'; |
| } |
| else if ( ( end - current == 2 ) && ( *( current + 1 ) == '.' ) && |
| ( *( current + 2 ) == '.' ) ) |
| { |
| /* Found '/..'. Remove them all. */ |
| *current = '\1'; |
| *(current + 1) = '\1'; |
| *(current + 2) = '\1'; |
| ++dotdots; |
| } |
| else if ( dotdots ) |
| { |
| memset( current, '\1', end - current + 1 ); |
| --dotdots; |
| } |
| end = current - 1; |
| } |
| |
| string_new( out ); |
| |
| /* Now we know that we need to add exactly dotdots '..' path elements to the |
| * front and that our string is either empty or has a '/' as its first |
| * significant character. If we have any dotdots remaining then the passed |
| * path must not have been rooted or else it is invalid we return an empty |
| * list. |
| */ |
| if ( dotdots ) |
| { |
| if ( rooted ) |
| { |
| string_free( out ); |
| string_free( in ); |
| return L0; |
| } |
| do |
| string_append( out, "/.." ); |
| while ( --dotdots ); |
| } |
| |
| /* Now we actually remove all the path characters marked for removal. */ |
| for ( current = in->value; *current; ++current ) |
| if ( *current != '\1' ) |
| string_push_back( out, *current ); |
| |
| /* Here we know that our string contains no '\1' characters and is either |
| * empty or has a '/' as its initial character. If the original path was not |
| * rooted and we have a non-empty path we need to drop the initial '/'. If |
| * the original path was rooted and we have an empty path we need to add |
| * back the '/'. |
| */ |
| result = object_new( out->size |
| ? out->value + !rooted |
| : ( rooted ? "/" : "." ) ); |
| |
| string_free( out ); |
| string_free( in ); |
| |
| return list_new( result ); |
| } |
| |
| |
| LIST * builtin_native_rule( FRAME * frame, int flags ) |
| { |
| LIST * module_name = lol_get( frame->args, 0 ); |
| LIST * rule_name = lol_get( frame->args, 1 ); |
| |
| module_t * module = bindmodule( list_front( module_name ) ); |
| |
| native_rule_t * np; |
| if ( module->native_rules && (np = (native_rule_t *)hash_find( |
| module->native_rules, list_front( rule_name ) ) ) ) |
| { |
| new_rule_body( module, np->name, np->procedure, 1 ); |
| } |
| else |
| { |
| backtrace_line( frame->prev ); |
| printf( "error: no native rule \"%s\" defined in module \"%s.\"\n", |
| object_str( list_front( rule_name ) ), object_str( module->name ) ); |
| backtrace( frame->prev ); |
| exit( 1 ); |
| } |
| return L0; |
| } |
| |
| |
| LIST * builtin_has_native_rule( FRAME * frame, int flags ) |
| { |
| LIST * module_name = lol_get( frame->args, 0 ); |
| LIST * rule_name = lol_get( frame->args, 1 ); |
| LIST * version = lol_get( frame->args, 2 ); |
| |
| module_t * module = bindmodule( list_front( module_name ) ); |
| |
| native_rule_t * np; |
| if ( module->native_rules && (np = (native_rule_t *)hash_find( |
| module->native_rules, list_front( rule_name ) ) ) ) |
| { |
| int expected_version = atoi( object_str( list_front( version ) ) ); |
| if ( np->version == expected_version ) |
| return list_new( object_copy( constant_true ) ); |
| } |
| return L0; |
| } |
| |
| |
| LIST * builtin_user_module( FRAME * frame, int flags ) |
| { |
| LIST * const module_name = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( module_name ); |
| LISTITER const end = list_end( module_name ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| bindmodule( list_item( iter ) )->user_module = 1; |
| return L0; |
| } |
| |
| |
| LIST * builtin_nearest_user_location( FRAME * frame, int flags ) |
| { |
| FRAME * const nearest_user_frame = frame->module->user_module |
| ? frame |
| : frame->prev_user; |
| if ( !nearest_user_frame ) |
| return L0; |
| |
| { |
| LIST * result = L0; |
| char const * file; |
| int line; |
| char buf[ 32 ]; |
| |
| get_source_line( nearest_user_frame, &file, &line ); |
| sprintf( buf, "%d", line ); |
| result = list_push_back( result, object_new( file ) ); |
| result = list_push_back( result, object_new( buf ) ); |
| return result; |
| } |
| } |
| |
| |
| LIST * builtin_check_if_file( FRAME * frame, int flags ) |
| { |
| LIST * const name = lol_get( frame->args, 0 ); |
| return file_is_file( list_front( name ) ) == 1 |
| ? list_new( object_copy( constant_true ) ) |
| : L0; |
| } |
| |
| |
| LIST * builtin_md5( FRAME * frame, int flags ) |
| { |
| LIST * l = lol_get( frame->args, 0 ); |
| char const * s = object_str( list_front( l ) ); |
| |
| md5_state_t state; |
| md5_byte_t digest[ 16 ]; |
| char hex_output[ 16 * 2 + 1 ]; |
| |
| int di; |
| |
| md5_init( &state ); |
| md5_append( &state, (md5_byte_t const *)s, strlen( s ) ); |
| md5_finish( &state, digest ); |
| |
| for ( di = 0; di < 16; ++di ) |
| sprintf( hex_output + di * 2, "%02x", digest[ di ] ); |
| |
| return list_new( object_new( hex_output ) ); |
| } |
| |
| |
| LIST * builtin_file_open( FRAME * frame, int flags ) |
| { |
| char const * name = object_str( list_front( lol_get( frame->args, 0 ) ) ); |
| char const * mode = object_str( list_front( lol_get( frame->args, 1 ) ) ); |
| int fd; |
| char buffer[ sizeof( "4294967295" ) ]; |
| |
| if ( strcmp(mode, "w") == 0 ) |
| fd = open( name, O_WRONLY|O_CREAT|O_TRUNC, 0666 ); |
| else |
| fd = open( name, O_RDONLY ); |
| |
| if ( fd != -1 ) |
| { |
| sprintf( buffer, "%d", fd ); |
| return list_new( object_new( buffer ) ); |
| } |
| return L0; |
| } |
| |
| |
| LIST * builtin_pad( FRAME * frame, int flags ) |
| { |
| OBJECT * string = list_front( lol_get( frame->args, 0 ) ); |
| char const * width_s = object_str( list_front( lol_get( frame->args, 1 ) ) ); |
| |
| int current = strlen( object_str( string ) ); |
| int desired = atoi( width_s ); |
| if ( current >= desired ) |
| return list_new( object_copy( string ) ); |
| else |
| { |
| char * buffer = BJAM_MALLOC( desired + 1 ); |
| int i; |
| LIST * result; |
| |
| strcpy( buffer, object_str( string ) ); |
| for ( i = current; i < desired; ++i ) |
| buffer[ i ] = ' '; |
| buffer[ desired ] = '\0'; |
| result = list_new( object_new( buffer ) ); |
| BJAM_FREE( buffer ); |
| return result; |
| } |
| } |
| |
| |
| LIST * builtin_precious( FRAME * frame, int flags ) |
| { |
| LIST * targets = lol_get( frame->args, 0 ); |
| LISTITER iter = list_begin( targets ); |
| LISTITER const end = list_end( targets ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| bindtarget( list_item( iter ) )->flags |= T_FLAG_PRECIOUS; |
| return L0; |
| } |
| |
| |
| LIST * builtin_self_path( FRAME * frame, int flags ) |
| { |
| extern char const * saved_argv0; |
| char * p = executable_path( saved_argv0 ); |
| if ( p ) |
| { |
| LIST * const result = list_new( object_new( p ) ); |
| free( p ); |
| return result; |
| } |
| return L0; |
| } |
| |
| |
| LIST * builtin_makedir( FRAME * frame, int flags ) |
| { |
| LIST * const path = lol_get( frame->args, 0 ); |
| return file_mkdir( object_str( list_front( path ) ) ) |
| ? L0 |
| : list_new( object_copy( list_front( path ) ) ); |
| } |
| |
| LIST *builtin_readlink( FRAME * frame, int flags ) |
| { |
| const char * path = object_str( list_front( lol_get( frame->args, 0 ) ) ); |
| #ifdef OS_NT |
| |
| /* This struct is declared in ntifs.h which is |
| * part of the Windows Driver Kit. |
| */ |
| typedef struct _REPARSE_DATA_BUFFER { |
| ULONG ReparseTag; |
| USHORT ReparseDataLength; |
| USHORT Reserved; |
| union { |
| struct { |
| USHORT SubstituteNameOffset; |
| USHORT SubstituteNameLength; |
| USHORT PrintNameOffset; |
| USHORT PrintNameLength; |
| ULONG Flags; |
| WCHAR PathBuffer[ 1 ]; |
| } SymbolicLinkReparseBuffer; |
| struct { |
| USHORT SubstituteNameOffset; |
| USHORT SubstituteNameLength; |
| USHORT PrintNameOffset; |
| USHORT PrintNameLength; |
| WCHAR PathBuffer[ 1 ]; |
| } MountPointReparseBuffer; |
| struct { |
| UCHAR DataBuffer[ 1 ]; |
| } GenericReparseBuffer; |
| }; |
| } REPARSE_DATA_BUFFER; |
| |
| HANDLE hLink = CreateFileA( path, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL ); |
| DWORD n; |
| union { |
| REPARSE_DATA_BUFFER reparse; |
| char data[MAXIMUM_REPARSE_DATA_BUFFER_SIZE]; |
| } buf; |
| int okay = DeviceIoControl(hLink, FSCTL_GET_REPARSE_POINT, NULL, 0, &buf, sizeof(buf), &n, NULL); |
| |
| CloseHandle( hLink ); |
| |
| if (okay && buf.reparse.ReparseTag == IO_REPARSE_TAG_SYMLINK ) |
| { |
| int index = buf.reparse.SymbolicLinkReparseBuffer.SubstituteNameOffset / 2; |
| int length = buf.reparse.SymbolicLinkReparseBuffer.SubstituteNameLength / 2; |
| char cbuf[MAX_PATH + 1]; |
| int numchars = WideCharToMultiByte( CP_ACP, 0, buf.reparse.SymbolicLinkReparseBuffer.PathBuffer + index, length, cbuf, sizeof(cbuf), NULL, NULL ); |
| if( numchars >= sizeof(cbuf) ) |
| { |
| return 0; |
| } |
| cbuf[numchars] = '\0'; |
| return list_new( object_new( cbuf ) ); |
| } |
| else if( okay && buf.reparse.ReparseTag == IO_REPARSE_TAG_MOUNT_POINT ) |
| { |
| int index = buf.reparse.MountPointReparseBuffer.SubstituteNameOffset / 2; |
| int length = buf.reparse.MountPointReparseBuffer.SubstituteNameLength / 2; |
| char cbuf[MAX_PATH + 1]; |
| const char * result; |
| int numchars = WideCharToMultiByte( CP_ACP, 0, buf.reparse.MountPointReparseBuffer.PathBuffer + index, length, cbuf, sizeof(cbuf), NULL, NULL ); |
| if( numchars >= sizeof(cbuf) ) |
| { |
| return 0; |
| } |
| cbuf[numchars] = '\0'; |
| /* strip off the leading "\??\" */ |
| result = cbuf; |
| if ( cbuf[ 0 ] == '\\' && cbuf[ 1 ] == '?' && |
| cbuf[ 2 ] == '?' && cbuf[ 3 ] == '\\' && |
| cbuf[ 4 ] != '\0' && cbuf[ 5 ] == ':' ) |
| { |
| result += 4; |
| } |
| return list_new( object_new( result ) ); |
| } |
| return 0; |
| #else |
| char static_buf[256]; |
| char * buf = static_buf; |
| size_t bufsize = 256; |
| LIST * result = 0; |
| while (1) { |
| ssize_t len = readlink( path, buf, bufsize ); |
| if ( len < 0 ) |
| { |
| break; |
| } |
| else if ( len < bufsize ) |
| { |
| buf[ len ] = '\0'; |
| result = list_new( object_new( buf ) ); |
| break; |
| } |
| if ( buf != static_buf ) |
| BJAM_FREE( buf ); |
| bufsize *= 2; |
| buf = BJAM_MALLOC( bufsize ); |
| } |
| |
| if ( buf != static_buf ) |
| BJAM_FREE( buf ); |
| |
| return result; |
| #endif |
| } |
| |
| |
| #ifdef HAVE_PYTHON |
| |
| LIST * builtin_python_import_rule( FRAME * frame, int flags ) |
| { |
| static int first_time = 1; |
| char const * python_module = object_str( list_front( lol_get( frame->args, |
| 0 ) ) ); |
| char const * python_function = object_str( list_front( lol_get( frame->args, |
| 1 ) ) ); |
| OBJECT * jam_module = list_front( lol_get( frame->args, 2 ) ); |
| OBJECT * jam_rule = list_front( lol_get( frame->args, 3 ) ); |
| |
| PyObject * pName; |
| PyObject * pModule; |
| PyObject * pDict; |
| PyObject * pFunc; |
| |
| if ( first_time ) |
| { |
| /* At the first invocation, we add the value of the global |
| * EXTRA_PYTHONPATH to the sys.path Python variable. |
| */ |
| LIST * extra = 0; |
| module_t * outer_module = frame->module; |
| LISTITER iter, end; |
| |
| first_time = 0; |
| |
| extra = var_get( root_module(), constant_extra_pythonpath ); |
| |
| iter = list_begin( extra ), end = list_end( extra ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| string buf[ 1 ]; |
| string_new( buf ); |
| string_append( buf, "import sys\nsys.path.append(\"" ); |
| string_append( buf, object_str( list_item( iter ) ) ); |
| string_append( buf, "\")\n" ); |
| PyRun_SimpleString( buf->value ); |
| string_free( buf ); |
| } |
| } |
| |
| pName = PyString_FromString( python_module ); |
| pModule = PyImport_Import( pName ); |
| Py_DECREF( pName ); |
| |
| if ( pModule != NULL ) |
| { |
| pDict = PyModule_GetDict( pModule ); |
| pFunc = PyDict_GetItemString( pDict, python_function ); |
| |
| if ( pFunc && PyCallable_Check( pFunc ) ) |
| { |
| module_t * m = bindmodule( jam_module ); |
| new_rule_body( m, jam_rule, function_python( pFunc, 0 ), 0 ); |
| } |
| else |
| { |
| if ( PyErr_Occurred() ) |
| PyErr_Print(); |
| fprintf( stderr, "Cannot find function \"%s\"\n", python_function ); |
| } |
| Py_DECREF( pModule ); |
| } |
| else |
| { |
| PyErr_Print(); |
| fprintf( stderr, "Failed to load \"%s\"\n", python_module ); |
| } |
| return L0; |
| |
| } |
| |
| #endif /* #ifdef HAVE_PYTHON */ |
| |
| |
| void lol_build( LOL * lol, char const * * elements ) |
| { |
| LIST * l = L0; |
| lol_init( lol ); |
| |
| while ( elements && *elements ) |
| { |
| if ( !strcmp( *elements, ":" ) ) |
| { |
| lol_add( lol, l ); |
| l = L0; |
| } |
| else |
| { |
| l = list_push_back( l, object_new( *elements ) ); |
| } |
| ++elements; |
| } |
| |
| if ( l != L0 ) |
| lol_add( lol, l ); |
| } |
| |
| |
| #ifdef HAVE_PYTHON |
| |
| /* |
| * Calls the bjam rule specified by name passed in 'args'. The name is looked up |
| * in the context of bjam's 'python_interface' module. Returns the list of |
| * strings returned by the rule. |
| */ |
| |
| PyObject * bjam_call( PyObject * self, PyObject * args ) |
| { |
| FRAME inner[ 1 ]; |
| LIST * result; |
| PARSE * p; |
| OBJECT * rulename; |
| |
| /* Build up the list of arg lists. */ |
| frame_init( inner ); |
| inner->prev = 0; |
| inner->prev_user = 0; |
| inner->module = bindmodule( constant_python_interface ); |
| |
| /* Extract the rule name and arguments from 'args'. */ |
| |
| /* PyTuple_GetItem returns borrowed reference. */ |
| rulename = object_new( PyString_AsString( PyTuple_GetItem( args, 0 ) ) ); |
| { |
| int i = 1; |
| int size = PyTuple_Size( args ); |
| for ( ; i < size; ++i ) |
| { |
| PyObject * a = PyTuple_GetItem( args, i ); |
| if ( PyString_Check( a ) ) |
| { |
| lol_add( inner->args, list_new( object_new( |
| PyString_AsString( a ) ) ) ); |
| } |
| else if ( PySequence_Check( a ) ) |
| { |
| LIST * l = 0; |
| int s = PySequence_Size( a ); |
| int i = 0; |
| for ( ; i < s; ++i ) |
| { |
| /* PySequence_GetItem returns new reference. */ |
| PyObject * e = PySequence_GetItem( a, i ); |
| char * s = PyString_AsString( e ); |
| if ( !s ) |
| { |
| printf( "Invalid parameter type passed from Python\n" ); |
| exit( 1 ); |
| } |
| l = list_push_back( l, object_new( s ) ); |
| Py_DECREF( e ); |
| } |
| lol_add( inner->args, l ); |
| } |
| } |
| } |
| |
| result = evaluate_rule( bindrule( rulename, inner->module), rulename, inner ); |
| object_free( rulename ); |
| |
| frame_free( inner ); |
| |
| /* Convert the bjam list into a Python list result. */ |
| { |
| PyObject * const pyResult = PyList_New( list_length( result ) ); |
| int i = 0; |
| LISTITER iter = list_begin( result ); |
| LISTITER const end = list_end( result ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| PyList_SetItem( pyResult, i, PyString_FromString( object_str( |
| list_item( iter ) ) ) ); |
| i += 1; |
| } |
| list_free( result ); |
| return pyResult; |
| } |
| } |
| |
| |
| /* |
| * Accepts four arguments: |
| * - module name |
| * - rule name, |
| * - Python callable. |
| * - (optional) bjam language function signature. |
| * Creates a bjam rule with the specified name in the specified module, which |
| * will invoke the Python callable. |
| */ |
| |
| PyObject * bjam_import_rule( PyObject * self, PyObject * args ) |
| { |
| char * module; |
| char * rule; |
| PyObject * func; |
| PyObject * bjam_signature = NULL; |
| module_t * m; |
| RULE * r; |
| OBJECT * module_name; |
| OBJECT * rule_name; |
| |
| if ( !PyArg_ParseTuple( args, "ssO|O:import_rule", |
| &module, &rule, &func, &bjam_signature ) ) |
| return NULL; |
| |
| if ( !PyCallable_Check( func ) ) |
| { |
| PyErr_SetString( PyExc_RuntimeError, "Non-callable object passed to " |
| "bjam.import_rule" ); |
| return NULL; |
| } |
| |
| module_name = *module ? object_new( module ) : 0; |
| m = bindmodule( module_name ); |
| if ( module_name ) |
| object_free( module_name ); |
| rule_name = object_new( rule ); |
| new_rule_body( m, rule_name, function_python( func, bjam_signature ), 0 ); |
| object_free( rule_name ); |
| |
| Py_INCREF( Py_None ); |
| return Py_None; |
| } |
| |
| |
| /* |
| * Accepts four arguments: |
| * - an action name |
| * - an action body |
| * - a list of variable that will be bound inside the action |
| * - integer flags. |
| * Defines an action on bjam side. |
| */ |
| |
| PyObject * bjam_define_action( PyObject * self, PyObject * args ) |
| { |
| char * name; |
| char * body; |
| module_t * m; |
| PyObject * bindlist_python; |
| int flags; |
| LIST * bindlist = L0; |
| int n; |
| int i; |
| OBJECT * name_str; |
| FUNCTION * body_func; |
| |
| if ( !PyArg_ParseTuple( args, "ssO!i:define_action", &name, &body, |
| &PyList_Type, &bindlist_python, &flags ) ) |
| return NULL; |
| |
| n = PyList_Size( bindlist_python ); |
| for ( i = 0; i < n; ++i ) |
| { |
| PyObject * next = PyList_GetItem( bindlist_python, i ); |
| if ( !PyString_Check( next ) ) |
| { |
| PyErr_SetString( PyExc_RuntimeError, "bind list has non-string " |
| "type" ); |
| return NULL; |
| } |
| bindlist = list_push_back( bindlist, object_new( PyString_AsString( next |
| ) ) ); |
| } |
| |
| name_str = object_new( name ); |
| body_func = function_compile_actions( body, constant_builtin, -1 ); |
| new_rule_actions( root_module(), name_str, body_func, bindlist, flags ); |
| function_free( body_func ); |
| object_free( name_str ); |
| |
| Py_INCREF( Py_None ); |
| return Py_None; |
| } |
| |
| |
| /* |
| * Returns the value of a variable in root Jam module. |
| */ |
| |
| PyObject * bjam_variable( PyObject * self, PyObject * args ) |
| { |
| char * name; |
| LIST * value; |
| PyObject * result; |
| int i; |
| OBJECT * varname; |
| LISTITER iter; |
| LISTITER end; |
| |
| if ( !PyArg_ParseTuple( args, "s", &name ) ) |
| return NULL; |
| |
| varname = object_new( name ); |
| value = var_get( root_module(), varname ); |
| object_free( varname ); |
| iter = list_begin( value ); |
| end = list_end( value ); |
| |
| result = PyList_New( list_length( value ) ); |
| for ( i = 0; iter != end; iter = list_next( iter ), ++i ) |
| PyList_SetItem( result, i, PyString_FromString( object_str( list_item( |
| iter ) ) ) ); |
| |
| return result; |
| } |
| |
| |
| PyObject * bjam_backtrace( PyObject * self, PyObject * args ) |
| { |
| PyObject * result = PyList_New( 0 ); |
| struct frame * f = frame_before_python_call; |
| |
| for ( ; f = f->prev; ) |
| { |
| PyObject * tuple = PyTuple_New( 4 ); |
| char const * file; |
| int line; |
| char buf[ 32 ]; |
| string module_name[ 1 ]; |
| |
| get_source_line( f, &file, &line ); |
| sprintf( buf, "%d", line ); |
| string_new( module_name ); |
| if ( f->module->name ) |
| { |
| string_append( module_name, object_str( f->module->name ) ); |
| string_append( module_name, "." ); |
| } |
| |
| /* PyTuple_SetItem steals reference. */ |
| PyTuple_SetItem( tuple, 0, PyString_FromString( file ) ); |
| PyTuple_SetItem( tuple, 1, PyString_FromString( buf ) ); |
| PyTuple_SetItem( tuple, 2, PyString_FromString( module_name->value ) ); |
| PyTuple_SetItem( tuple, 3, PyString_FromString( f->rulename ) ); |
| |
| string_free( module_name ); |
| |
| PyList_Append( result, tuple ); |
| Py_DECREF( tuple ); |
| } |
| return result; |
| } |
| |
| PyObject * bjam_caller( PyObject * self, PyObject * args ) |
| { |
| return PyString_FromString( frame_before_python_call->prev->module->name ? |
| object_str( frame_before_python_call->prev->module->name ) : "" ); |
| } |
| |
| #endif /* #ifdef HAVE_PYTHON */ |
| |
| |
| #ifdef HAVE_POPEN |
| |
| #if defined(_MSC_VER) || defined(__BORLANDC__) |
| #define popen windows_popen_wrapper |
| #define pclose _pclose |
| |
| /* |
| * This wrapper is a workaround for a funny _popen() feature on Windows |
| * where it eats external quotes in some cases. The bug seems to be related |
| * to the quote stripping functionality used by the Windows cmd.exe |
| * interpreter when its /S is not specified. |
| * |
| * Cleaned up quote from the cmd.exe help screen as displayed on Windows XP |
| * SP3: |
| * |
| * 1. If all of the following conditions are met, then quote characters on |
| * the command line are preserved: |
| * |
| * - no /S switch |
| * - exactly two quote characters |
| * - no special characters between the two quote characters, where |
| * special is one of: &<>()@^| |
| * - there are one or more whitespace characters between the two quote |
| * characters |
| * - the string between the two quote characters is the name of an |
| * executable file. |
| * |
| * 2. Otherwise, old behavior is to see if the first character is a quote |
| * character and if so, strip the leading character and remove the last |
| * quote character on the command line, preserving any text after the |
| * last quote character. |
| * |
| * This causes some commands containing quotes not to be executed correctly. |
| * For example: |
| * |
| * "\Long folder name\aaa.exe" --name="Jurko" --no-surname |
| * |
| * would get its outermost quotes stripped and would be executed as: |
| * |
| * \Long folder name\aaa.exe" --name="Jurko --no-surname |
| * |
| * which would report an error about '\Long' not being a valid command. |
| * |
| * cmd.exe help seems to indicate it would be enough to add an extra space |
| * character in front of the command to avoid this but this does not work, |
| * most likely due to the shell first stripping all leading whitespace |
| * characters from the command. |
| * |
| * Solution implemented here is to quote the whole command in case it |
| * contains any quote characters. Note thought this will not work correctly |
| * should Windows ever 'fix' this feature. |
| * (03.06.2008.) (Jurko) |
| */ |
| static FILE * windows_popen_wrapper( char const * command, |
| char const * mode ) |
| { |
| int const extra_command_quotes_needed = !!strchr( command, '"' ); |
| string quoted_command; |
| FILE * result; |
| |
| if ( extra_command_quotes_needed ) |
| { |
| string_new( "ed_command ); |
| string_append( "ed_command, "\"" ); |
| string_append( "ed_command, command ); |
| string_append( "ed_command, "\"" ); |
| command = quoted_command.value; |
| } |
| |
| result = _popen( command, "r" ); |
| |
| if ( extra_command_quotes_needed ) |
| string_free( "ed_command ); |
| |
| return result; |
| } |
| #endif /* defined(_MSC_VER) || defined(__BORLANDC__) */ |
| |
| |
| static char * rtrim( char * const s ) |
| { |
| char * p = s; |
| while ( *p ) ++p; |
| for ( --p; p >= s && isspace( *p ); *p-- = 0 ); |
| return s; |
| } |
| |
| |
| LIST * builtin_shell( FRAME * frame, int flags ) |
| { |
| LIST * command = lol_get( frame->args, 0 ); |
| LIST * result = L0; |
| string s; |
| int ret; |
| char buffer[ 1024 ]; |
| FILE * p = NULL; |
| int exit_status = -1; |
| int exit_status_opt = 0; |
| int no_output_opt = 0; |
| int strip_eol_opt = 0; |
| |
| /* Process the variable args options. */ |
| { |
| int a = 1; |
| LIST * arg = lol_get( frame->args, a ); |
| for ( ; !list_empty( arg ); arg = lol_get( frame->args, ++a ) ) |
| { |
| if ( !strcmp( "exit-status", object_str( list_front( arg ) ) ) ) |
| exit_status_opt = 1; |
| else if ( !strcmp( "no-output", object_str( list_front( arg ) ) ) ) |
| no_output_opt = 1; |
| else if ( !strcmp("strip-eol", object_str( list_front( arg ) ) ) ) |
| strip_eol_opt = 1; |
| } |
| } |
| |
| /* The following fflush() call seems to be indicated as a workaround for a |
| * popen() bug on POSIX implementations related to synhronizing input |
| * stream positions for the called and the calling process. |
| */ |
| fflush( NULL ); |
| |
| p = popen( object_str( list_front( command ) ), "r" ); |
| if ( p == NULL ) |
| return L0; |
| |
| string_new( &s ); |
| |
| while ( ( ret = fread( buffer, sizeof( char ), sizeof( buffer ) - 1, p ) ) > |
| 0 ) |
| { |
| buffer[ ret ] = 0; |
| if ( !no_output_opt ) |
| { |
| if ( strip_eol_opt ) |
| rtrim( buffer ); |
| string_append( &s, buffer ); |
| } |
| } |
| |
| exit_status = pclose( p ); |
| |
| /* The command output is returned first. */ |
| result = list_new( object_new( s.value ) ); |
| string_free( &s ); |
| |
| /* The command exit result next. */ |
| if ( exit_status_opt ) |
| { |
| if ( WIFEXITED( exit_status ) ) |
| exit_status = WEXITSTATUS( exit_status ); |
| else |
| exit_status = -1; |
| sprintf( buffer, "%d", exit_status ); |
| result = list_push_back( result, object_new( buffer ) ); |
| } |
| |
| return result; |
| } |
| |
| #else /* #ifdef HAVE_POPEN */ |
| |
| LIST * builtin_shell( FRAME * frame, int flags ) |
| { |
| return L0; |
| } |
| |
| #endif /* #ifdef HAVE_POPEN */ |