1// Copyright 2011 The Kyua Authors.
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28
29#include "model/context.hpp"
30
31#include "utils/format/macros.hpp"
32#include "utils/fs/path.hpp"
33#include "utils/noncopyable.hpp"
34#include "utils/text/operations.ipp"
35
36namespace fs = utils::fs;
37namespace text = utils::text;
38
39
40/// Internal implementation of a context.
41struct model::context::impl : utils::noncopyable {
42    /// The current working directory.
43    fs::path _cwd;
44
45    /// The environment variables.
46    std::map< std::string, std::string > _env;
47
48    /// Constructor.
49    ///
50    /// \param cwd_ The current working directory.
51    /// \param env_ The environment variables.
52    impl(const fs::path& cwd_,
53         const std::map< std::string, std::string >& env_) :
54        _cwd(cwd_),
55        _env(env_)
56    {
57    }
58
59    /// Equality comparator.
60    ///
61    /// \param other The object to compare to.
62    ///
63    /// \return True if the two objects are equal; false otherwise.
64    bool
65    operator==(const impl& other) const
66    {
67        return _cwd == other._cwd && _env == other._env;
68    }
69};
70
71
72/// Constructs a new context.
73///
74/// \param cwd_ The current working directory.
75/// \param env_ The environment variables.
76model::context::context(const fs::path& cwd_,
77                         const std::map< std::string, std::string >& env_) :
78    _pimpl(new impl(cwd_, env_))
79{
80}
81
82
83/// Destructor.
84model::context::~context(void)
85{
86}
87
88
89/// Returns the current working directory of the context.
90///
91/// \return A path.
92const fs::path&
93model::context::cwd(void) const
94{
95    return _pimpl->_cwd;
96}
97
98
99/// Returns the environment variables of the context.
100///
101/// \return A variable name to variable value mapping.
102const std::map< std::string, std::string >&
103model::context::env(void) const
104{
105    return _pimpl->_env;
106}
107
108
109/// Equality comparator.
110///
111/// \param other The other object to compare this one to.
112///
113/// \return True if this object and other are equal; false otherwise.
114bool
115model::context::operator==(const context& other) const
116{
117    return *_pimpl == *other._pimpl;
118}
119
120
121/// Inequality comparator.
122///
123/// \param other The other object to compare this one to.
124///
125/// \return True if this object and other are different; false otherwise.
126bool
127model::context::operator!=(const context& other) const
128{
129    return !(*this == other);
130}
131
132
133/// Injects the object into a stream.
134///
135/// \param output The stream into which to inject the object.
136/// \param object The object to format.
137///
138/// \return The output stream.
139std::ostream&
140model::operator<<(std::ostream& output, const context& object)
141{
142    output << F("context{cwd=%s, env=[")
143        % text::quote(object.cwd().str(), '\'');
144
145    const std::map< std::string, std::string >& env = object.env();
146    bool first = true;
147    for (std::map< std::string, std::string >::const_iterator
148             iter = env.begin(); iter != env.end(); ++iter) {
149        if (!first)
150            output << ", ";
151        first = false;
152
153        output << F("%s=%s") % (*iter).first
154            % text::quote((*iter).second, '\'');
155    }
156
157    output << "]}";
158    return output;
159}
160