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anaconda_go

by DamnWidget ST3

AnacondaGO adds autocompletion, linting and IDE features for Golang to your Sublime Text 3

Details

Installs

  • Total 5K
  • Win 3K
  • OS X 1K
  • Linux 925
Oct 19 Oct 18 Oct 17 Oct 16 Oct 15 Oct 14 Oct 13 Oct 12 Oct 11 Oct 10 Oct 9 Oct 8 Oct 7 Oct 6 Oct 5 Oct 4 Oct 3 Oct 2 Oct 1 Sep 30 Sep 29 Sep 28 Sep 27 Sep 26 Sep 25 Sep 24 Sep 23 Sep 22 Sep 21 Sep 20 Sep 19 Sep 18 Sep 17 Sep 16 Sep 15 Sep 14 Sep 13 Sep 12 Sep 11 Sep 10 Sep 9 Sep 8 Sep 7 Sep 6 Sep 5 Sep 4
Windows 0 12 7 18 14 7 15 12 8 18 7 12 6 9 11 7 13 12 7 8 17 19 14 19 10 6 11 21 17 12 10 14 8 13 13 19 11 10 9 10 11 11 9 15 17 12
OS X 0 5 7 4 9 6 5 3 5 2 12 3 6 3 6 4 5 9 8 2 6 4 6 9 4 7 5 15 13 8 7 9 7 5 14 12 2 4 2 3 6 3 7 9 4 8
Linux 0 6 4 7 4 1 6 4 1 5 9 1 0 2 5 4 6 4 3 3 3 3 6 5 4 5 5 9 10 4 10 4 3 3 2 8 7 1 2 1 6 2 6 4 2 6

Readme

Source
raw.​githubusercontent.​com

Join the chat at https://gitter.im/DamnWidget/anaconda GitHub release Anaconda Compatible Version >= 2.1.20 Package Control

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                                            The Sublime Text 3 Go IDE

Pledgie

AnacondaGO adds autocompletion, linting and IDE features for Golang to your Sublime Text 3 using anaconda's asynchronous engine so it shouldn't freeze your Sublime Text ever.

Note: AnacondaGO does not include any key binding by itself as we think that package key bindings are intrusive, anyway, we provide some key binding suggestions in this same README file.

Table of Contents

NOTICE!

This project is under heavy development, please, report any issue that you found with enough useful information, a ticket that says It does not works does not help us and does not help you. As a rule of thumb when opening a new ticket follow the rules below:

  • Add your ST3 build version
  • Add your Anaconda version
  • Add your AnacondaGO version
  • Add your Go version GOPATH and GOROOT and if you are using some kind of vendorer
  • Add your Python interpreter version
  • Add your Operating System version
  • Try to be as descriptive and verbose as you can
  • Give us instructions about how to reproduce the problem
  • Add as many information about your environment as you can

AnacondaGO is not a fork of GoSublime and it does not pretends to be a GoSublime in-replacement or implement the same features that GoSublime already implements. This is a brand new Golang package for Sublime Text 3 that uses it's own approach and vision.

Supported Platforms

AnacondaGO has been developed and tested in GNU/Linux with excellent results. The current status in the different platforms is:

  • GNU/Linux: Beta
  • OS X: Beta
  • Windows: Beta (Not tested enough)

Dependencies

  1. Anaconda plugin for Sublime Text 3
  2. Go

Dependencies Installation

AnacondaGO will try to install all it's dependencies on start, it tries to infer your Go configuration from the system but is probably that you have to define the anaconda_go_GOROOT and the anaconda_go_GOPATH in case that AnacondaGO is not able to infer your Go settings from the system.

Note: AnacondaGO doesn't use the embedded ST3 python interpreter, for more information about anaconda and the python_interpreter take a look at the anaconda's official documentation

Plugin Installation

Anaconda will be automatically installed by Package Control as soon as you try to install AnacondaGO. In case that you are installing anaconda directly from the git repository, then you must clone anaconda fisrt, cd to your Sublime Text 3 Packages directory and clone anaocnda in there:

git clone https://github.com/DamnWidget/anaconda.git anaconda

Install AnacondaGO plugin

  1. Show the Command Palette (cmd+shift+p on OS X or ctrl+shift+p on Linux/Windows)
  2. Type install, then select Package Control: Install package from the list of options
  3. Type anaconda_go and press enter

Features

AncondaGO implements many features using different Go tools internally. Some features require of scopes, by default, AnacondaGO will try to infer your project scope comparing the directory where you are editing your code on with the active GOPATH but the user can define whatever scope that she wish adding a list of comma-separated set of packages in the anconda_go_guru_scope settings option.

Implementation Status

Some of the features are still under development:

  • [x] Context sensitive autocompletion
  • [x] Invalid Syntax Checking (linting)
  • [x] Code Style Linting
  • [x] Suspicious or smelly code blocks analysis (linting)
  • [x] Redundant code blocks analysis (linting)
  • [x] Function complexity analysis (linting)
  • [x] Dead code analysis (linting)
  • [x] Inefficient data structure analysis (linting)
  • [x] File and package symbols navigation (including variables, structures and functions)
  • [x] Symbol under the cursor analysis and navigation
  • [x] Installed Packages and Standard Library packages exploration
  • [x] Helper to implement Interfaces
  • [x] Auto formating/import on file save
  • [x] Show documentation for the symbol under the cursor
  • [x] Explore Packages and Show its Documentation
  • [x] Lookup for symbol referrers
  • [x] Function call and stack analysis
  • [x] Channels analysis
  • [x] Interface implementation analysis
  • [x] Pointers analysis (static dereference)
  • [ ] Integrated Debugger?

Note: Not all the AnacondaGO fatures are listed below, for a full list just open the Command Palette and write AnacondaGO, you will get the full list of available operations (make sure you don't do that while your cursor is over a comment or a string as many AnacondaGO commands get automatically disabled on them).

Autocompletion

Autocompletion is always active and there is no configuration or keybindings related with it, to use just write code in your ST3

Code linting

AnacondaGO support several linters. The linters can be deactivated setting anaconda_go_linting to false in the AnacondaGO package configuration.

Related configuration

The default linters configuration can be check below

Linter Description Default Setting
aligncheck Check structs alignment Enabled
deadcode Finds and report unused code Enabled
dupl Finds and report potentially duplicated code Enabled
errcheck Checks that error reports are being used Enabled
gas Report common programming mistakes that can lead to security issues Enabled
goconst Reports repeated strings that could be constants Enabled
gocyclo Reports cyclomatic complexity of functions Enabled
goling Stylistic Linter Enabled
gosimple Reports simplifications in code Enabled
gotype Syntactic and Semantic analysis like the Go compiler Enabled
ineffassign Detect when assignments to existing variables are not used Enabled
interfacer Suggest narrower interfaces that could be used as func parameters Enabled
staticcheck Check inputs to functions correctness Enabled
structcheck Reports unused struct fields Enabled
unconvert Detect redundant type conversions Enabled
varcheck Reports unused global variables and constants Enabled
go vet Reports potential errors or smelly code Enabled
go vet –shadow Reports variables that may have been unintentionally shadowed Enabled
test Show locations of test failures from the stdlib testing module Disabled
lll Report long lines Disabled
testify Show location of failed testify assertions Disabled
unused Find unused variables (quite redundant) Disabled

Note that several of these linters can and will report the same error in the same lines in some circumstances because that, AnacondaGO prioritizes error codes over warnings and cleans up the report lines to do not show more than one error per line in any time, if there are two different errors in a line, when one had been fixed the other will appear.

Specific linter configuration

Some linters accept configuration parameters that affects their behavior, those parameters can be configured setting specific options in the AncondaGO configuration.

Execute juts fast linters

If you feel that the linter reports are very slow, you can try to run just fast linters. In the config:

"anaconda_go_fast_linters_only": true

Note: This will disable the structcheck, varcheck, errcheck, aligncheck, testify, test, interfacer, unconvert and deadcode linters independently of other configurations.

Set max line length for lll

The user can specify the max line length for the lll linter by setting the anaconda_go_max_line_length to whatever numeric value that they wish, by default is 120

Note: The lll linter is disabled by default

Set the cyclomatic threshold

The complexity threshold for gocyclo can be adjusted by setting the anaconda_go_gocyclo_threshold to whatever value that the user wish, by default this value is a complexity of 10

Set golint min confidence

The user can set the minimum confidence of golint in something being a problem to report it by setting anaconda_go_min_confidence to whatever decimal value that wish, by default this value is 0.80

Set goconst min occurrences

How many times a string has to be repeated to be reported by goconst can be defined by setting anaconda_go_min_occurrences, by default that number is 3

Set goconst min length

Goconst will ignore any string with a length lower than anaconda_go_min_const_length that by default is 3

Duplication threshold

The threshold for dupl to report a block of code as duplicated will contain a minimum sequence of anaconda_go_dupl_threshold characters cloned, by default that number is 50

Enable linting of tests

If the user want to lint tests with those linters that supports it just set the anaconda_go_lint_test to true.

Ignore gas warnings

If the user want to ignore a security report from gas if is totally certain that is fine, she can do it by adding a comment at the end of the reported line with this contents “go // nosec

##### Ignore arbitrary reports

Arbitrary reports could be disabled adding regular expressions to the `anaconda_go_exclude_regexps`

### Jump to definition (goto)

AnacondaGO can jump to whatever symbol definition (if the source is available).

#### Usage

Put the cursor over the symbol you want to jump to, open the *Command Palette* and select **AnacondaGO: Goto Definition**

#### Suggested Keybinding

Our suggested key binding for this feature is:
```javascript
{ "keys": ["alt+k", "alt+g"], "command": "anaconda_go_goto", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go) - comment", "match_all": false}
    ]
}

Related configuration

By default AnacondaGO will try to use guru in order to find the definitions but godef can also be used if the user feels that guru is too slow setting the value for the setting anaconda_go_guru_usage. There are three different modes

Mode Description Default
always Use only Guru Yes
fallback Use Godef by default and switch to Guru in case that Godef could not retrieve any result No
never Use Godef no matter what No

Lookup For Function Callees

Look in the code for possible methods that could be call targets of the function call under the cursor. This query uses pointer analysis so it requires of a scope.

Usage

Put the cursor over a function call expression and then open the Command Palette and select AnacondaGO: Get Possible Function Callees, you can also use the same entry in the Contextual menu using the right mouse click.

Suggested Keybinding

{ "keys": ["alt+k", "alt+c"], "command": "anaconda_go_callees" , "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Lookup For Function Callers

Look up for possible caller of the function under the cursor. This query uses pointer analysis so it requires a scope.

Usage

Put the cursor over a function call expression and then open the Command Palette and select AnacondaGO: Get Function Callers, you can also use the same entry in the Contextual menu using the right mouse click.

Suggested Keybinding

{ "keys": ["alt+Shift+k", "alt+Shift+c"], "command": "anaconda_go_callers" , "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Get Function Callstack (aproximation)

This command returns a path from the root of the call graph to the function under the cursor. This query uses pointer analysis so it requires a scope.

Usage

Put the cursor over a function call expression and then open the Command Palette and select AnacondaGO: Get Call Stack.

Dereference Pointer

This function shows a list of possible objects to which a pointer may point, it also works with other reference types like slices, functions, maps and channels. This query uses pointer analysis so it requires a scope.

Usage

Put the cursor over a a reference and then open the Command Palette and select AnacondaGO: Dereference Pointter. You can alternatively use the same context menu option using the right mouse click.

Suggested Keybinding

{ "keys": ["alt+k", "alt+p"], "command": "anaconda_go_pointsto" , "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Get Referrers

This function lookup for references to the symbol under the cursor scanning all necessary packages withing the $GOPATH and $GOROOT.

Usage

Put the cursor over a a reference and then open the Command Palette and select AnacondaGO: Get Referrer. You can alternatively use the same context menu option using the right mouse click.

Suggested Keybinding

{ "keys": ["alt+k", "alt+r"], "command": "anaconda_go_referrers", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Implements

Lookup for interfaces that are implemented by the symbol under the cursor, if teh symbol is itself an interface, it also returns the set of concrete types that implements it.

Usage

Put the cursor over a a reference and then open the Command Palette and select AnacondaGO: Implements. You can alternatively use the same context menu option using the right mouse click.

Suggested Keybinding

{ "keys": ["alt+k", "alt+i"], "command": "anaconda_go_referrers", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Browse file functions

The user can browse all the current being edited file function definitions at any time

Usage

In the Command Palette select AnacondaGO: Browse File Functions and press enter, a panel with all the defined functions on the file will be presented and it can be navigated using the arrow keys.

Suggested Keybinding

{ "keys": ["alt+k", "alt+f"], "command": "anaconda_go_explore_file_funcs", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Browse file structures

The user can also browse all the file defined structures at any time

Usage

In the Command Palette select AnacondaGO: Browse File Structs and press enter.

Suggested keybinding

Our suggested key binding for this feature is: ”javascript { “keys”: [“alt+k”, “alt+s”], “command”: “anaconda_go_explore_file_structs”, “context”: [ {“key”: “selector”, “operator”: “equal”, “operand”: “(source.go)”, “match_all”: false} ] }

### Browse file declarations

The user can also browse over all the file functions and structs at once at any time

#### Usage

In the *Command Palette* select **AnacondaGO: Browse File Symbols** and press enter.

#### Suggested keybinding

Our suggested key binding for this feature is:
```javascript
{ "keys": ["alt+k", "alt+y"], "command": "anaconda_go_explore_file_decls", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Browse package functions

The user can browse all the package functions that contains the current file being edited

Usage

In the Command Palette select AnacondaGO: Browse Package Functions and press enter, a panel with all the defined functions on the file will be presented and it can be navigated using the arrow keys, if the user selects a function defined in a file that is not still open, it will be open in a new buffer.

Suggested Keybinding

Our suggested key binding for this feature is: “javascript { "keys”: [“alt+Shift+k”, “alt+f”], “command”: “anaconda_go_explore_package_funcs”, “context”: [ {“key”: “selector”, “operator”: “equal”, “operand”: “(source.go)”, “match_all”: false} ] }

### Browse package structures

The user can also browse all the package defined structures at any time

#### Usage

In the *Command Palette* select **AnacondaGO: Browse Package Structs** and press enter.

#### Suggested keybinding

Our suggested key binding for this feature is:
```javascript
{ "keys": ["alt+Shift+k", "alt+s"], "command": "anaconda_go_explore_package_structs", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ]
}

Browse package declarations

The user can also browse over all the package declarations including variables, constants functions and structures

Usage

In the Command Palette select AnacondaGO: Browse Package Symbols and press enter.

Suggested keybinding

Our suggested key binding for this feature is: “javascript { "keys”: [“alt+Shift+k”, “alt+y”], “command”: “anaconda_go_explore_package_decls”, “context”: [ {“key”: “selector”, “operator”: “equal”, “operand”: “(source.go)”, “match_all”: false} ] }

### Explore Packages

In a similar way, AnacondaGO offers a panel to explore all the packages installed in your `GOPATH` as well as all the packages present in the standard library.

#### Usage

In the *Command Palette* select **AnacondaGO: Explore Packages** and press enter

### Symbol under the cursor analysis and navigation

AnacondaGO is able to analyze whatever (non ambiguous) symbol under the current cursor position and present a panel with information or a browsing panel.

#### Usage

Just situate the cursor over the symbol that you want to analyze and use the *Command Palette* command **AnacondaGO: Analyze Symbol**. Alternatively you can also click the right mouse button and select the same option in the contextual menu that is shown under the AnacondaGO menu entry.

If you want to browse the symbol contents use the *Command Palette* command **AnacondaGO: Browse Symbol**. Alternatively you can also click the right mouse button and select the same option in the contextual menu that is shown under the Anaconda menu entry.

#### Suggested keybindings

Out suggested key bindings for this feature are:
```javascript
{ "keys": ["alt+k", "alt+a"], "command": "anaconda_go_analyze_symbol", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ],
    "args": { "operation": "analyze" }
},
{ "keys": ["alt+k", "alt+b"], "command": "anaconda_go_browse_symbol", "context":
    [
        {"key": "selector", "operator": "equal", "operand": "(source.go)", "match_all": false}
    ],
    "args": { "operation": "browse" }
}

Show Documentation for symbol under cursor

The user can look for the documentation of the current symbol under the cursor using go_doc or gogetdoc and retrieve the documentation in a bottom panel.

Usage

Just situate the cursor over the symbol that you want to retrieve the documentation for and use the Command Palette& command **AncondaGO: Show Documentation*. Optionally you can also click the right mouse button and select the same options in the contextual menu that is shown under the AnacondaGO menu entry.

Suggested keybindings

Our suggested key bindings for this feature are: “javascript { "keys”: [“alt+k”, “alt+d”], “command”: “anaconda_go_doc”, “context”: [ {“key”: “selector”, “operator”: “equal”, “operand”: “(source.go)”, “match_all”: false} ] }

#### Related Configuration

AnacondaGO uses `gogetdoc` and `go doc` to retrieve documentation but `gogetdoc` is used by default (as it is able to find symbols that `go get` is not) if for some reason you prefer to use `go get` you can force it's usage setting the value of the `anaconda_go_force_go_doc_usage` setting to `true`.

You can also retrieve any unexported symbol documentation when using `go doc` by setting `anaconda_go_doc_private_symbols` to `true` (it is already true by default).

### Show Packages Documentation (Linux and OSX only)

AnacondaGO offers a simple to use installed packages documentation explorer that rely always on `go doc`. Using it you don't have the need to open your browser to retrieve documentation about any package in the standard library or any other installed package in your `GOPATH`.

#### Usage

Open the *Command Palette* and use the command **AnacondaGO: Show Packages Documentation**.

## Known Issues

### Go runtime update

If you update the Golang runtime you may need to update several packages for code linting/autocomplete.

go get -u golang.org/x/tools/cmd/godoc go get -u golang.org/x/tools/cmd/vet go get -u golang.org/x/tools/cmd/goimports go get -u golang.org/x/tools/cmd/gorename go get -u golang.org/x/tools/cmd/gotype go get -u golang.org/x/tools/cmd/guru go get -u github.com/golang/lint/golint go get -u github.com/nsf/gocode

The run `gocode close` from any terminal and restart sublime. 


## License
This program is distributed under the terms of the GNU GPL v3. See the [LICENSE][license] file for more details.