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27
28#*************************************************************************
29#
30# SourceConfigHelper - Perl extension for parsing general info databases
31#
32# usage: see below
33#
34#*************************************************************************
35
36package SourceConfigHelper;
37
38use strict;
39
40use RepositoryHelper;
41use SourceConfig;
42use Cwd qw (cwd);
43use Carp;
44
45my $debug = 0;
46my @source_config_list; # array of sourceconfig objects
47
48#-----------------------------------------------------------------------
49#	Constants
50#-----------------------------------------------------------------------
51
52use constant SOURCE_CONFIG_NONE => 0;
53use constant SOURCE_CONFIG_CURRENT_FIRST => 1;
54use constant SOURCE_CONFIG_ENVIRONMENT_FIRST => 2;
55use constant SOURCE_CONFIG_CURRENT_ONLY => 3;
56use constant SOURCE_CONFIG_ENVIRONMENT_ONLY => 4;
57
58use constant SOURCE_CONFIG_DEFAULT => SOURCE_CONFIG_CURRENT_FIRST;
59
60#####  profiling #####
61
62##### ctor #####
63
64sub new {
65    my $proto = shift;
66    my $class = ref($proto) || $proto;
67    my $init_action = shift;
68    my $self = {};
69    my $SourceConfigCurrent;
70    my $SourceConfigEnvironment;
71
72    $init_action = SOURCE_CONFIG_DEFAULT if (!defined ($init_action));
73    if (!eval ($init_action) or ($init_action < SOURCE_CONFIG_NONE) or ($init_action > SOURCE_CONFIG_ENVIRONMENT_ONLY)) {
74		croak("wrong initial parameter: $init_action\n");
75    }
76
77    if ($init_action != SOURCE_CONFIG_NONE) {
78		my $repositoryHash_ref = {};
79		if ($init_action != SOURCE_CONFIG_ENVIRONMENT_ONLY) {
80			my $initial_directory = cwd();
81			my $result = is_repository($initial_directory, $repositoryHash_ref);
82			if ($result) {
83				$SourceConfigCurrent = SourceConfig->new($repositoryHash_ref->{REPOSITORY_ROOT});
84			}
85		}
86		if ($init_action != SOURCE_CONFIG_CURRENT_ONLY) {
87		    my $source_config = $ENV{SOURCE_ROOT_DIR} . '/' . SourceConfig::SOURCE_CONFIG_FILE_NAME;
88		    if (-f $source_config) {
89				$SourceConfigEnvironment = SourceConfig->new($source_config);
90			}
91		}
92
93		# fill array
94
95		if (($init_action == SOURCE_CONFIG_CURRENT_FIRST) or ($init_action == SOURCE_CONFIG_CURRENT_ONLY)) {
96			if (defined ($SourceConfigCurrent)) {
97				push (@source_config_list, $SourceConfigCurrent);
98			}
99			if ($init_action == SOURCE_CONFIG_CURRENT_FIRST) {
100				if (defined ($SourceConfigEnvironment)) {
101					push (@source_config_list, $SourceConfigEnvironment);
102				}
103			}
104		}
105		elsif (($init_action == SOURCE_CONFIG_ENVIRONMENT_FIRST) or ($init_action == SOURCE_CONFIG_ENVIRONMENT_ONLY)) {
106			if (defined ($SourceConfigEnvironment)) {
107				push (@source_config_list, $SourceConfigEnvironment);
108			}
109			if ($init_action == SOURCE_CONFIG_ENVIRONMENT_FIRST) {
110				if (defined ($SourceConfigCurrent)) {
111					push (@source_config_list, $SourceConfigCurrent);
112				}
113			}
114		}
115    }
116
117    $self->{SOURCE_CONFIG_LIST} = \@source_config_list;
118
119    bless($self, $class);
120    return $self;
121}
122
123##### methods #####
124
125############################################################################################
126
127sub add_SourceConfig {
128    my $self = shift;
129    my $source_config = shift;
130    push (@{$self->{SOURCE_CONFIG_LIST}}, $source_config);
131}
132
133############################################################################################
134
135sub get_SourceConfigList {
136	my $self = shift;
137	return @{$self->{SOURCE_CONFIG_LIST}};
138}
139
140############################################################################################
141
142sub has_SourceConfig {
143	my $self = shift;
144	my $result = 0;
145	my $count = @{$self->{SOURCE_CONFIG_LIST}};
146	$result = 1 if ($count > 0);
147	return $result;
148}
149
150############################################################################################
151
152sub get_module_path {
153	my $self = shift;
154	my $module = shift;
155	my $function = \&SourceConfig::get_module_path;
156	my $result;
157	$result = $self->get_StringResult ($function, $module);
158	return $result;
159}
160
161############################################################################################
162
163sub get_active_modules {
164	my $self = shift;
165	my $parameter; # empty
166	my $function = \&SourceConfig::get_active_modules;
167	my $array_ref;
168	$array_ref = $self->get_ArrayResult ($function, $parameter);
169	return @$array_ref;
170}
171
172############################################################################################
173
174sub get_repositories {
175	my $self = shift;
176	my $parameter; # empty
177	my $function = \&SourceConfig::get_repositories;
178	my $array_ref;
179	$array_ref = $self->get_ArrayResult ($function, $parameter);
180	return @$array_ref;
181}
182
183############################################################################################
184
185sub get_module_repository {
186	my $self = shift;
187	my $module = shift;
188	my $function = \&SourceConfig::get_module_repository;
189	my $result;
190	$result = $self->get_StringResult ($function, $module);
191	return $result;
192}
193
194############################################################################################
195
196sub is_active {
197	my $self = shift;
198	my $module = shift;
199	my $function = \&SourceConfig::is_active;
200	my $result_ref;
201	my $is_active = 0;
202	$result_ref = $self->get_ResultOfList ($function, $module);
203	my $count = @$result_ref;
204	if ($count>0) {
205	    foreach my $active (@$result_ref) {
206			if ($active) {
207				$is_active = $active;
208			}
209	    }
210	}
211	return $is_active;
212}
213
214##### private methods #####
215
216############################################################################################
217#
218# is_repository () : check if the directory is a valid repository
219#
220# input: - directory
221#        - hash reference, where the output will be stored
222#
223# output: 0 = FALSE, the directory is no valid repository
224#         1 = TRUE, the repository root can be found in $repositoryHash_ref->{REPOSITORY_ROOT}
225#
226############################################################################################
227
228sub is_repository {
229	my $directory = shift;
230    my $repositoryHash_ref = shift;
231    $repositoryHash_ref->{INITIAL_DIRECTORY} = $directory;
232	$repositoryHash_ref->{REPOSITORY_ROOT} = undef;
233	$repositoryHash_ref->{REPOSITORY_NAME} = undef;
234    my $result = RepositoryHelper::search_via_build_lst($repositoryHash_ref);
235    chdir $repositoryHash_ref->{INITIAL_DIRECTORY};
236    if (!$result) {
237        $result = RepositoryHelper::search_for_hg($repositoryHash_ref);
238    }
239    return $result;
240}
241
242############################################################################################
243#
244# get_ResultOfList(): give back an array reference from all SourceConfig Objects results
245#
246# input: - function : reference to the called function of each SourceConfig Object
247#        - parameter : parameter for the called function
248#
249# output: result : array of all results
250#
251############################################################################################
252
253sub get_ResultOfList {
254	my $self = shift;
255	my $function = shift;
256	my $parameter = shift;
257	my @result;
258	foreach my $source_config (@{$self->{SOURCE_CONFIG_LIST}}) {
259		push (@result, &$function ($source_config, $parameter));
260	}
261	return \@result;
262}
263
264############################################################################################
265#
266# get_StringResult(): give back the first defined result from all SourceConfig Objects
267#
268# input: - function : reference to the called function of each SourceConfig Object
269#        - parameter : parameter for the called function
270#
271# output: result : scalar variable (string), undef if no result
272#
273############################################################################################
274
275sub get_StringResult {
276	my $self = shift;
277	my $function = shift;
278	my $parameter = shift;
279	my $result_ref;
280	$result_ref = $self->get_ResultOfList ($function, $parameter);
281	my $count = @$result_ref;
282	if ($count>0) {
283		my $value;
284		my $i = 0;
285		while (($i < $count) and !defined ($value)) { # search the first defined result
286			$value = $$result_ref[$i];
287			$i++;
288	    }
289		return $value;
290	}
291	return undef;
292}
293
294############################################################################################
295#
296# get_StringResult(): give back a sorted and uniqe array reference of the results
297#                     from all SourceConfig Objects
298#
299# input: - function : reference to the called function of each SourceConfig Object
300#        - parameter : parameter for the called function
301#
302# output: result : sorted and uniqe array reference
303#
304############################################################################################
305
306sub get_ArrayResult {
307	my $self = shift;
308	my $function = shift;
309	my $parameter = shift;
310	my $result_ref;
311	my @modules;
312	$result_ref = $self->get_ResultOfList ($function, $parameter);
313	my $count = @$result_ref;
314	if ($count>0) {
315	    my %moduleHash;
316	    foreach my $module (@$result_ref) {
317			$moduleHash{$module}++;
318	    }
319	    @modules = sort keys %moduleHash;
320	}
321	return \@modules;
322}
323
324 ##### finish #####
325
3261; # needed by use or require
327
328__END__
329
330=head1 NAME
331
332SourceConfigHelper - Perl extension for handling with SourceConfigObjetcs
333
334=head1 SYNOPSIS
335
336    # example that will read source_config file and return the active repositories
337
338    use SourceConfigHelper;
339
340    # Create a new instance:
341    $a = SourceConfigHelper->new();
342
343    # Get repositories for the actual workspace:
344    $a->get_repositories();
345
346=head1 DESCRIPTION
347
348SourceConfigHelper is a perl extension to handle more than one objects of SourceConfig
349to set up a search order for modules.
350
351Methods:
352
353SourceConfigHelper::new()
354
355Creates a new instance of SourceConfigHelper. Can be initialized by: default - empty or with a constant of search order. default: the source_config will be taken first from the current repository and second from the environment
356Possible parameters are:
357SourceConfigHelper::SOURCE_CONFIG_NONE - no SourceConfig Object will be created
358SourceConfigHelper::SOURCE_CONFIG_CURRENT_FIRST - use the current repository first
359SourceConfigHelper::SOURCE_CONFIG_ENVIRONMENT_FIRST - use the repository of the environment first
360SourceConfigHelper::SOURCE_CONFIG_CURRENT_ONLY - use only the current repository
361SourceConfigHelper::SOURCE_CONFIG_ENVIRONMENT_ONLY - use only the repository of the environment
362
363SourceConfigHelper::get_repositories()
364
365Returns sorted list of active repositories for the actual workspace
366
367SourceConfigHelper::get_active_modules()
368
369Returns a sorted list of active modules
370
371SourceConfigHelper::get_all_modules()
372
373Returns sorted list of all modules in active repositories.
374
375SourceConfigHelper::get_module_path($module)
376
377Returns absolute module path. If the module is not active or don't exists, "undef" will be returned.
378
379SourceConfigHelper::get_module_repository($module)
380
381Returns the module's repository. If the module is not active or don't exists, "undef" will be returned.
382
383SourceConfigHelper::is_active()
384
385Returns 1 (TRUE) if a module is active
386Returns 0 (FALSE) if a module is not active
387
388SourceConfigHelper::add_SourceConfig($SourceConfigObject)
389
390Add the SourceConfigObject to the end of the list
391
392SourceConfigHelper::get_SourceConfigList()
393
394Return an array of SourceConfigObjects
395
396SourceConfigHelper::has_SourceConfig()
397
398Returns 1 (TRUE) if one or more SourceConfig Objects is in the list
399Returns 0 (FALSE) if no SourceConfig Object is in the list (can happen if there is no valid repository)
400
401=head2 EXPORT
402
403SourceConfigHelper::new()
404SourceConfigHelper::get_repositories()
405SourceConfigHelper::get_active_modules()
406SourceConfigHelper::get_all_modules()
407SourceConfigHelper::get_module_path($module)
408SourceConfigHelper::get_module_repository($module)
409SourceConfigHelper::is_active($module)
410SourceConfigHelper::add_SourceConfig($SourceConfigObject)
411SourceConfigHelper::get_SourceConfigList()
412SourceConfigHelper::has_SourceConfig()
413
414=head1 AUTHOR
415
416Kurt Zenker, kz@openoffice.org
417
418=head1 SEE ALSO
419
420perl(1).
421
422=cut 
423