vscode-proto3

Protobuf 3 support for Visual Studio Code

https://github.com/zxh0/vscode-proto3

VSCode Commands

By default ctrl-shift-p opens the command prompt.

Command	Description
`proto3: Compile All Protos`	Compiles all workspace protos using configurations defined with `protoc.options`.
`proto3: Compile This Proto`	Compiles the active proto using configurations defined with `protoc.options`.

Features

syntax highlighting.
syntax validation.
code snippets.
code completion.
code formatting.
brace matching.
line and block commenting.
compilation.

Syntax Highlighting

The grammar is written in tmLanguage JSON format.

Syntax Validation

The validation is triggered when you save the proto file. You need protoc compiler to enable syntax validation. You also need a settings.json file to tell the extension the full path of protoc if it is not in path.

Extension Settings

Below is an example settings.json file which comes from example/.vscode:

{
    "protoc": {
        "path": "/path/to/protoc",
        "compile_on_save": false,
        "options": [
            "--proto_path=protos/v3",
            "--proto_path=protos/v2",
            "--proto_path=${workspaceRoot}/proto",
            "--proto_path=${env.GOPATH}/src",
            "--java_out=gen/java"
        ]
    }
}

Fields

The possible fields under the protoc extension settings which can be defined in a settings.json file.

Field	Type	Default	Description
path	string	protoc in PATH	Path to protoc. Defaults to protoc in PATH if omitted.
compile_on_save	boolean	false	On `.proto` file save, compiles to `--*_out` location within `options`
compile_all_path	string	Workspace Root	Search Path for `Compile All Protos` action. Defaults to the Workspace Root
options	string[]	[]	protoc compiler arguments/flags, required for proto validation and compilation

In-Line Variables

These variables can be used to inject variables strings within the protoc extension configurations. See above for examples.

Variable	Description
config.*	Refer settings items in `Preferences`.
env.*	Refer environment variable.
workspaceRoot	Returns current workspace root path.

Code Completion

A very simple parser is written to support code completion.

Code Snippets

prefix	body
sp2	`syntax = "proto2";`
sp3	`syntax = "proto3";`
pkg	`package package.name;`
imp	`import "path/to/other/protos.proto";`
ojp	`option java_package = "java.package.name";`
ojoc	`option java_outer_classname = "ClassName";`
o4s	`option optimize_for = SPEED;`
o4cs	`option optimize_for = CODE_SIZE;`
o4lr	`option optimize_for = LITE_RUNTIME;`
odep	`option deprecated = true;`
oaa	`option allow_alias = true;`
msg	`message MessageName {}`
fbo	`bool field_name = tag;`
fi32	`int32 field_name = tag;`
fi64	`int64 field_name = tag;`
fu32	`uint32 field_name = tag;`
fu64	`uint64 field_name = tag;`
fs32	`sint32 field_name = tag;`
fs64	`sint64 field_name = tag;`
ff32	`fixed32 field_name = tag;`
ff64	`fixed64 field_name = tag;`
fsf32	`sfixed32 field_name = tag;`
fsf64	`sfixed64 field_name = tag;`
ffl	`float field_name = tag;`
fdo	`double field_name = tag;`
fst	`string field_name = tag;`
fby	`bytes field_name = tag;`
fm	`map<key, val> field_name = tag;`
foo	`oneof name {}`
en	`enum EnumName {}`
sv	`service ServiceName {}`
rpc	`rpc MethodName (Request) returns (Response);`

Google API Design Guide

The following snippets are based on Google API Design Guide.

prefix	reference
svgapi	Standard Methods

Code Formatting

Support "Format Document" if clang-format is in path, including custom style options.

By default, clang-format's standard coding style will be used for formatting. To define a custom style or use a supported preset add "clang-format.style" in VSCode Settings (settings.json)

Example usage:

"clang-format.style": "google"

This is the equivalent of executing clang-format -style=google from the shell.

With multiple formatting options

"clang-format.style": "{ IndentWidth: 4, BasedOnStyle: google, AlignConsecutiveAssignments: true }"

For further formatting options refer to the official clang-format documentation

Known Issues

Auto-completion not works in some situations.

Some users consistently see an error like spawnsync clang-format enoent when they save. This happens when the "formatOnSave"-setting is enabled in VSCode and "clang-format" cannot be found. To fix this:

On MacOS

Install clang-format on your system: brew install clang-format
Install the clang-format plugin in VSCode

Release Notes

See CHANGELOG.md.

License

asvetliakov/vscode-proto3

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