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
|
# Atom
[Atom](https://atom.io/)
([Wikipedia](https://en.wikipedia.org/wiki/Atom_(text_editor))) is a
multi-platform code editor that is itself based on Chromium.
[Turtles aside](https://en.wikipedia.org/wiki/Turtles_all_the_way_down), Atom
has a growing community and base of installable plugins and themes.
You can download and install via links from the
[main Atom site](https://atom.io/). If you're interested in checking out the
code and contributing, see the
[developer page](https://github.com/atom/atom/blob/master/docs/build-instructions/linux.md).
[TOC]
## Workflow
A typical Atom workflow consists of the following.
1. Use `Ctrl-Shift-R` to find a symbol in the `.tags` file or `Ctrl-P` to find
a file by name.
2. Switch between the header and the source using `Alt-O`(`Ctrl-Opt-S` on OSX).
3. While editing, `you-complete-me` package helps with C++ auto-completion and
shows compile errors through `lint` package.
4. Press `Ctrl-Shift-P` and type `format<Enter>` to format the code.
5. Select the target to build by pressing `F7` and typing, for example,
`base_unittests`.
6. Rebuild again by pressing `F9`.
## Atom packages
To setup this workflow, install Atom packages for Chrome development.
```
$ apm install build build-ninja clang-format \
linter linter-cpplint linter-eslint switch-header-source you-complete-me
```
## Autocomplete
Install C++ auto-completion engine.
```
$ git clone https://github.com/Valloric/ycmd.git ~/.ycmd
$ cd ~/.ycmd
$ ./build.py --clang-completer
```
## JavaScript lint
Install JavaScript linter for Blink layout tests.
```
$ npm install -g eslint eslint-config-google
```
Configure the JavaScript linter to use the Google style by default by replacing
the contents of `~/.eslintrc` with the following.
```
{
"extends": "google",
"env": {
"browser": true
}
}
```
## Configuration
Configure Atom by replacing the contents of `~/.atom/config.cson` with the
following. Replace `<path-of-your-home-dir>` and
`<path-of-your-chrome-checkout>` with the actual full paths of your home
directory and chrome checkout. For example, these can be `/Users/bob` and
`/Users/bob/chrome/src`.
```
"*":
# Configure ninja builder.
"build-ninja":
ninjaOptions: [
# The number of jobs to use when running ninja. Adjust to taste.
"-j10"
]
subdirs: [
# The location of your build.ninja file.
"out/gn"
]
# Do not auto-format entire files on save.
"clang-format":
formatCOnSave: false
formatCPlusPlusOnSave: false
core:
# Treat .h files as C++.
customFileTypes:
"source.cpp": [
"h"
]
# Don't send metrics if you're working on anything sensitive.
disabledPackages: [
"metrics"
"exception-reporting"
]
# Use spaces instead of tabs.
editor:
tabType: "soft"
# Show lint errors only when you save the file.
linter:
lintOnFly: false
# Configure JavaScript lint.
"linter-eslint":
eslintrcPath: "<path-of-your-home-dir>/.eslintrc"
useGlobalEslint: true
# Don't show ignored files in the project file browser.
"tree-view":
hideIgnoredNames: true
hideVcsIgnoredFiles: true
# Configure C++ autocomplete and lint.
"you-complete-me":
globalExtraConfig: "<path-of-your-chrome-checkout>/tools/vim/chromium.ycm_extra_conf.py"
ycmdPath: "<path-of-your-home-dir>/.ycmd/"
# Java uses 4 space indents and 100 character lines.
".java.source":
editor:
preferredLineLength: 100
tabLength: 4
```
## Symbol lookup
Atom fuzzy file finder is slow to index all files in Chrome. If you're working
on a project that frequently uses `foo` or `bar` in files names, you can create
a small `.tags` file to efficiently search the symbols within these files. Be
sure to use "Exuberant Ctags."
```
$ git ls | egrep -i "foo|bar" | ctags -f .tags -L -
```
Don't create a ctags file for the full Chrome repository, as that would result
in ~9GB tag file that will not be usable in Atom.
|
