1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#pragma once
#include "types.hh"
namespace nix {
typedef enum {
lvlError = 0,
lvlWarn,
lvlInfo,
lvlTalkative,
lvlChatty,
lvlDebug,
lvlVomit
} Verbosity;
typedef enum {
actUnknown = 0,
actCopyPath = 100,
actDownload = 101,
actRealise = 102,
actCopyPaths = 103,
actBuilds = 104,
actBuild = 105,
actOptimiseStore = 106,
actVerifyPaths = 107,
actSubstitute = 108,
actQueryPathInfo = 109,
} ActivityType;
typedef enum {
resFileLinked = 100,
resBuildLogLine = 101,
resUntrustedPath = 102,
resCorruptedPath = 103,
resSetPhase = 104,
resProgress = 105,
resSetExpected = 106,
} ResultType;
typedef uint64_t ActivityId;
class Logger
{
friend struct Activity;
public:
struct Field
{
// FIXME: use std::variant.
enum { tInt = 0, tString = 1 } type;
uint64_t i = 0;
std::string s;
Field(const std::string & s) : type(tString), s(s) { }
Field(const char * s) : type(tString), s(s) { }
Field(const uint64_t & i) : type(tInt), i(i) { }
};
typedef std::vector<Field> Fields;
virtual ~Logger() { }
virtual void log(Verbosity lvl, const FormatOrString & fs) = 0;
void log(const FormatOrString & fs)
{
log(lvlInfo, fs);
}
virtual void warn(const std::string & msg);
virtual void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
const std::string & s, const Fields & fields, ActivityId parent) { };
virtual void stopActivity(ActivityId act) { };
virtual void result(ActivityId act, ResultType type, const Fields & fields) { };
};
ActivityId getCurActivity();
void setCurActivity(const ActivityId activityId);
struct Activity
{
Logger & logger;
const ActivityId id;
Activity(Logger & logger, Verbosity lvl, ActivityType type, const std::string & s = "",
const Logger::Fields & fields = {}, ActivityId parent = getCurActivity());
Activity(Logger & logger, ActivityType type,
const Logger::Fields & fields = {}, ActivityId parent = getCurActivity())
: Activity(logger, lvlError, type, "", fields, parent) { };
Activity(const Activity & act) = delete;
~Activity();
void progress(uint64_t done = 0, uint64_t expected = 0, uint64_t running = 0, uint64_t failed = 0) const
{ result(resProgress, done, expected, running, failed); }
void setExpected(ActivityType type2, uint64_t expected) const
{ result(resSetExpected, type2, expected); }
template<typename... Args>
void result(ResultType type, const Args & ... args) const
{
Logger::Fields fields;
nop{(fields.emplace_back(Logger::Field(args)), 1)...};
result(type, fields);
}
void result(ResultType type, const Logger::Fields & fields) const
{
logger.result(id, type, fields);
}
friend class Logger;
};
struct PushActivity
{
const ActivityId prevAct;
PushActivity(ActivityId act) : prevAct(getCurActivity()) { setCurActivity(act); }
~PushActivity() { setCurActivity(prevAct); }
};
extern Logger * logger;
Logger * makeDefaultLogger();
Logger * makeJSONLogger(Logger & prevLogger);
bool handleJSONLogMessage(const std::string & msg,
const Activity & act, std::map<ActivityId, Activity> & activities,
bool trusted);
extern Verbosity verbosity; /* suppress msgs > this */
/* Print a message if the current log level is at least the specified
level. Note that this has to be implemented as a macro to ensure
that the arguments are evaluated lazily. */
#define printMsg(level, args...) \
do { \
if (level <= nix::verbosity) { \
logger->log(level, fmt(args)); \
} \
} while (0)
#define printError(args...) printMsg(lvlError, args)
#define printInfo(args...) printMsg(lvlInfo, args)
#define printTalkative(args...) printMsg(lvlTalkative, args)
#define debug(args...) printMsg(lvlDebug, args)
#define vomit(args...) printMsg(lvlVomit, args)
template<typename... Args>
inline void warn(const std::string & fs, Args... args)
{
boost::format f(fs);
nop{boost::io::detail::feed(f, args)...};
logger->warn(f.str());
}
void warnOnce(bool & haveWarned, const FormatOrString & fs);
void writeToStderr(const string & s);
}
|
