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
|
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/channel_info.h"
#include <stdlib.h>
#include <optional>
#include <string>
#include <string_view>
#include "base/environment.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "build/branding_buildflags.h"
#include "build/build_config.h"
#include "components/version_info/version_info.h"
namespace chrome {
namespace {
struct ChannelState {
version_info::Channel channel;
bool is_extended_stable;
};
// Returns the channel state for the browser based on branding and the
// CHROME_VERSION_EXTRA environment variable. In unbranded (Chromium) builds,
// this function unconditionally returns `channel` = UNKNOWN and
// `is_extended_stable` = false. In branded (Google Chrome) builds, this
// function returns `channel` = UNKNOWN and `is_extended_stable` = false for any
// unexpected $CHROME_VERSION_EXTRA value.
ChannelState GetChannelImpl() {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
const char* const env = getenv("CHROME_VERSION_EXTRA");
const std::string_view env_str =
env ? std::string_view(env) : std::string_view();
// Ordered by decreasing expected population size.
if (env_str == "stable")
return {version_info::Channel::STABLE, /*is_extended_stable=*/false};
if (env_str == "extended")
return {version_info::Channel::STABLE, /*is_extended_stable=*/true};
if (env_str == "beta")
return {version_info::Channel::BETA, /*is_extended_stable=*/false};
if (env_str == "unstable") // linux version of "dev"
return {version_info::Channel::DEV, /*is_extended_stable=*/false};
if (env_str == "canary") {
return {version_info::Channel::CANARY, /*is_extended_stable=*/false};
}
#endif // BUILDFLAG(GOOGLE_CHROME_BRANDING)
return {version_info::Channel::UNKNOWN, /*is_extended_stable=*/false};
}
} // namespace
std::string GetChannelName(WithExtendedStable with_extended_stable) {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
const auto channel_state = GetChannelImpl();
switch (channel_state.channel) {
case version_info::Channel::UNKNOWN:
return "unknown";
case version_info::Channel::CANARY:
return "canary";
case version_info::Channel::DEV:
return "dev";
case version_info::Channel::BETA:
return "beta";
case version_info::Channel::STABLE:
if (with_extended_stable && channel_state.is_extended_stable)
return "extended";
return std::string();
}
#else // BUILDFLAG(GOOGLE_CHROME_BRANDING)
const char* const env = getenv("CHROME_VERSION_EXTRA");
return env ? std::string(std::string_view(env)) : std::string();
#endif // BUILDFLAG(GOOGLE_CHROME_BRANDING)
}
std::string GetChannelSuffixForDataDir() {
switch (GetChannel()) {
case version_info::Channel::BETA:
return "-beta";
case version_info::Channel::DEV:
return "-unstable";
case version_info::Channel::CANARY:
return "-canary";
default:
// Stable, extended stable, and unknown (e.g. in unbranded builds) don't
// get a suffix.
return std::string();
}
}
#if BUILDFLAG(IS_LINUX)
std::string GetChannelSuffixForExtraFlagsEnvVarName() {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
const auto channel_state = GetChannelImpl();
switch (channel_state.channel) {
case version_info::Channel::CANARY:
return "_CANARY";
case version_info::Channel::DEV:
return "_DEV";
case version_info::Channel::BETA:
return "_BETA";
case version_info::Channel::STABLE:
return "_STABLE";
default:
return std::string();
}
#else // BUILDFLAG(GOOGLE_CHROME_BRANDING)
const char* const channel_name = getenv("CHROME_VERSION_EXTRA");
return channel_name
? base::StrCat(
{"_", base::ToUpperASCII(std::string_view(channel_name))})
: std::string();
#endif // BUILDFLAG(GOOGLE_CHROME_BRANDING)
}
#endif // BUILDFLAG(IS_LINUX)
#if BUILDFLAG(IS_LINUX)
std::string GetDesktopName(base::Environment* env) {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
// Google Chrome packaged as a snap is a special case: the application name
// is always "google-chrome", regardless of the channel (channels are built
// in to snapd, switching between them or doing parallel installs does not
// require distinct application names).
std::string snap_name = env->GetVar("SNAP_NAME").value_or(std::string());
if (snap_name == "google-chrome") {
return "google-chrome.desktop";
}
version_info::Channel product_channel(GetChannel());
switch (product_channel) {
case version_info::Channel::CANARY:
return "google-chrome-canary.desktop";
case version_info::Channel::DEV:
return "google-chrome-unstable.desktop";
case version_info::Channel::BETA:
return "google-chrome-beta.desktop";
default:
// Extended stable is not differentiated from regular stable.
return "google-chrome.desktop";
}
#else // BUILDFLAG(CHROMIUM_BRANDING)
// Allow $CHROME_DESKTOP to override the built-in value, so that development
// versions can set themselves as the default without interfering with
// non-official, packaged versions using the built-in value.
std::optional<std::string> name = env->GetVar("CHROME_DESKTOP");
if (name.has_value() && !name.value().empty()) {
return name.value();
}
return "chromium-browser.desktop";
#endif
}
#endif // BUILDFLAG(IS_LINUX)
version_info::Channel GetChannel() {
return GetChannelImpl().channel;
}
bool IsExtendedStableChannel() {
return GetChannelImpl().is_extended_stable;
}
} // namespace chrome
|
