1Dpkg::BuildFlags(3perl)          libdpkg-perl          Dpkg::BuildFlags(3perl)
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NAME

6       Dpkg::BuildFlags - query build flags
7

DESCRIPTION

9       This class is used by dpkg-buildflags and can be used to query the same
10       information.
11

METHODS

13       $bf = Dpkg::BuildFlags->new()
14           Create a new Dpkg::BuildFlags object. It will be initialized based
15           on the value of several configuration files and environment
16           variables.
17
18       $bf->load_vendor_defaults()
19           Reset the flags stored to the default set provided by the vendor.
20
21       $bf->load_system_config()
22           Update flags from the system configuration.
23
24       $bf->load_user_config()
25           Update flags from the user configuration.
26
27       $bf->load_environment_config()
28           Update flags based on user directives stored in the environment.
29           See dpkg-buildflags(1) for details.
30
31       $bf->load_maintainer_config()
32           Update flags based on maintainer directives stored in the
33           environment. See dpkg-buildflags(1) for details.
34
35       $bf->load_config()
36           Call successively load_system_config(), load_user_config(),
37           load_environment_config() and load_maintainer_config() to update
38           the default build flags defined by the vendor.
39
40       $bf->unset($flag)
41           Unset the build flag $flag, so that it will not be known anymore.
42
43       $bf->set($flag, $value, $source, $maint)
44           Update the build flag $flag with value $value and record its origin
45           as $source (if defined). Record it as maintainer modified if $maint
46           is defined and true.
47
48       $bf->set_feature($area, $feature, $enabled)
49           Update the boolean state of whether a specific feature within a
50           known feature area has been enabled. The only currently known
51           feature areas are "future", "qa", "sanitize", "hardening" and
52           "reproducible".
53
54       $bf->strip($flag, $value, $source, $maint)
55           Update the build flag $flag by stripping the flags listed in $value
56           and record its origin as $source (if defined). Record it as
57           maintainer modified if $maint is defined and true.
58
59       $bf->append($flag, $value, $source, $maint)
60           Append the options listed in $value to the current value of the
61           flag $flag.  Record its origin as $source (if defined). Record it
62           as maintainer modified if $maint is defined and true.
63
64       $bf->prepend($flag, $value, $source, $maint)
65           Prepend the options listed in $value to the current value of the
66           flag $flag.  Record its origin as $source (if defined). Record it
67           as maintainer modified if $maint is defined and true.
68
69       $bf->update_from_conffile($file, $source)
70           Update the current build flags based on the configuration
71           directives contained in $file. See dpkg-buildflags(1) for the
72           format of the directives.
73
74           $source is the origin recorded for any build flag set or modified.
75
76       $bf->get($flag)
77           Return the value associated to the flag. It might be undef if the
78           flag doesn't exist.
79
80       $bf->get_feature_areas()
81           Return the feature areas (i.e. the area values has_features will
82           return true for).
83
84       $bf->get_features($area)
85           Return, for the given area, a hash with keys as feature names, and
86           values as booleans indicating whether the feature is enabled or
87           not.
88
89       $bf->get_origin($flag)
90           Return the origin associated to the flag. It might be undef if the
91           flag doesn't exist.
92
93       $bf->is_maintainer_modified($flag)
94           Return true if the flag is modified by the maintainer.
95
96       $bf->has_features($area)
97           Returns true if the given area of features is known, and false
98           otherwise.  The only currently recognized feature areas are
99           "future", "qa", "sanitize", "hardening" and "reproducible".
100
101       $bf->has($option)
102           Returns a boolean indicating whether the flags exists in the
103           object.
104
105       @flags = $bf->list()
106           Returns the list of flags stored in the object.
107

CHANGES

109   Version 1.04 (dpkg 1.20.0)
110       New method: $bf->unset().
111
112   Version 1.03 (dpkg 1.16.5)
113       New method: $bf->get_feature_areas() to list possible values for
114       $bf->get_features.
115
116       New method $bf->is_maintainer_modified() and new optional parameter to
117       $bf->set(), $bf->append(), $bf->prepend(), $bf->strip().
118
119   Version 1.02 (dpkg 1.16.2)
120       New methods: $bf->get_features(), $bf->has_features(),
121       $bf->set_feature().
122
123   Version 1.01 (dpkg 1.16.1)
124       New method: $bf->prepend() very similar to append(). Implement support
125       of the prepend operation everywhere.
126
127       New method: $bf->load_maintainer_config() that update the build flags
128       based on the package maintainer directives.
129
130   Version 1.00 (dpkg 1.15.7)
131       Mark the module as public.
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1351.20.9                            2021-07-21           Dpkg::BuildFlags(3perl)