626 lines
22 KiB
Plaintext
626 lines
22 KiB
Plaintext
*vim-go.txt* Go development plugin
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*vim-go*
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===============================================================================
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# #
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# ## ## #### ## ## ###### ####### #
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# ## ## ## ### ### ## ## ## ## #
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# ## ## ## #### #### ## ## ## #
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# ## ## ## ## ### ## ####### ## #### ## ## #
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# ## ## ## ## ## ## ## ## ## #
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# ## ## ## ## ## ## ## ## ## #
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# ### #### ## ## ###### ####### #
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# #
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===============================================================================
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CONTENTS *go-contents*
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1. Intro........................................|go-intro|
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2. Install......................................|go-install|
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3. Commands.....................................|go-commands|
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4. Mappings.....................................|go-mappings|
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5. Text Objects.................................|go-text-objects|
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6. Settings.....................................|go-settings|
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7. Troubleshooting..............................|go-troubleshooting|
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8. Credits......................................|go-credits|
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===============================================================================
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INTRO *go-intro*
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Go (golang) support for Vim. vim-go installs automatically all necessary
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binaries for providing seamless Vim integration. It comes with pre-defined
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sensible settings (like auto gofmt on save), has autocomplete, snippet
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support, improved syntax highlighting, go toolchain commands, etc... It's
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highly customizable and each individual feature can be disabled/enabled
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easily.
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* Improved Syntax highlighting, such as Functions, Operators, Methods..
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* Auto completion support via `gocode`
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* Better `gofmt` on save, keeps cursor position and doesn't break your undo
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history
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* Go to symbol/declaration with `godef`
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* Automatically import packages via `goimports`
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* Compile and `go build` your package, install it with `go install`
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* `go run` quickly your current file/files
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* Run `go test` and see any errors in quickfix window
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* Lint your code with `golint`
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* Run your code trough `go vet` to catch static errors.
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* Advanced source analysis tool with `oracle`
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* Precise type-safe renaming of identifiers with `gorename`
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* List all source files and dependencies
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* Checking with `errcheck` for unchecked errors.
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* Integrated and improved snippets. Supports `ultisnips` or `neosnippet`
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* Share your current code to play.golang.org
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* Type information about the underlying identifier
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* Tagbar support to show tags of the source code in a sidebar with `gotags`
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===============================================================================
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INSTALL *go-install*
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If you use pathogen, just clone it into your bundle directory: >
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$ cd ~/.vim/bundle
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$ git clone https://github.com/fatih/vim-go.git
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<
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For Vundle add this line to your vimrc:
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>
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Plugin 'fatih/vim-go'
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<
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and execute `:PluginInstall` (or `:BundleInstall` for older versions of Vundle)
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Please be sure all necessary binares are installed (such as `gocode`, `godef`,
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`goimports`, etc..). You can easily install them with the included
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|GoInstallBinaries|. Those binaries will be automatically downloaded and
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installed to your `$GOBIN` environment (if not set it will use `$GOPATH/bin`).
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It requires `git` and `hg` for fetching the individual Go packages.
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* Autocompletion is enabled by default via `<C-x><C-o>`, to get real-time
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completion (completion by type) install:
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https://github.com/Valloric/YouCompleteMe or
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https://github.com/Shougo/neocomplete.vim
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* To get displayed source code tag informations on a sidebar install
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https://github.com/majutsushi/tagbar.
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* For snippet feature install:
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https://github.com/SirVer/ultisnips or
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https://github.com/Shougo/neosnippet.vim.
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===============================================================================
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COMMANDS *go-commands*
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*:GoImport*
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:GoImport [path]
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Import ensures that the provided package {path} is imported in the current
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Go buffer, using proper style and ordering. If {path} is already being
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imported, an error will be displayed and the buffer will be untouched.
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*:GoImportAs*
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:GoImportAs [localname] [path]
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Same as Import, but uses a custom local name for the package.
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*:GoDrop*
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:GoDrop [path]
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Remove the import line for the provided package {path}, if present in the
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current Go buffer. If {path} is not being imported, an error will be
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displayed and the buffer will be untouched.
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*:GoLint*
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:GoLint
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Run golint for the current Go file.
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*:GoDoc*
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:GoDoc [word]
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Open the relevant GoDoc in split window for either the word[s] passed to
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the command or by default, the word under the cursor.
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*:GoDocBrowser*
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:GoDocBrowser [word]
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Open the relevant GoDoc in browser for either the word[s] passed to the
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command or by default, the word under the cursor.
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*:GoFmt*
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:GoFmt
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Filter the current Go buffer through gofmt. It tries to preserve cursor
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position and avoids replacing the buffer with stderr output.
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*:GoImports*
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:GoImports
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Filter the current Go buffer through goimports (needs to be installed).
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`goimports` automatically discards/add import path based on the code. Like
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|GoFmt|, It tries to preserve cursor position and avoids replacing the
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buffer with stderr output.
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*:GoPlay*
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:[range]GoPlay
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Share snippet to play.golang.org. If no [range] is given it shares
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the whole file, otherwise the selected lines are shared. Snippet URL
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is copied to system clipboard if Vim is compiled with 'clipboard' or
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'xterm-clipboard' otherwise it's get yanked into the `""` register.
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*:GoVet*
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:GoVet
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Run `go vet` for the directory under your current file. Vet examines Go
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source code and reports suspicious constructs, such as Printf calls whose
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arguments do not align with the format string. Vet uses heuristics that do not
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guarantee all reports are genuine problems, but it can find errors not caught
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by the compilers.
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*:GoDef*
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:GoDef [identifier]
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Goto declaration/definition for the given [identifier]. If no argument is
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given, it will jump to the declaration under the cursor. By default the
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mapping `gd` is enabled to invoke GoDef for the identifier under the cursor.
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See |g:go_def_mapping_enabled| to disable it.
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*:GoRun*
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:GoRun[!] [expand]
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Build and run your current main package. By default all main files for the
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current file is used. If an argument is passed, 'expand' is used as file
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selector. For example use `:GoRun %` to select the current file only.
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If [!] is not given the first error is jumped to.
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*:GoBuild*
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:GoBuild[!] [options]
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Build your package with `go build`. It automatically builds only the files
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that depends on the current file. GoBuild doesn't produce a result file.
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Use 'make' to create a result file.
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You may optionally pass any valid go build flags/options. For a full list
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please see `go help build`.
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If [!] is not given the first error is jumped to.
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*:GoInfo*
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:GoInfo
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Show type information about the identifer under the cursor. For example
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putting it above a function call is going to show the full function
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signature. It uses gocode to get the type informations.
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*:GoInstall*
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:GoInstall
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Install your package with `go install`.
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*:GoTest*
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:GoTest [expand]
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Test your _test.go files via in your current directory. Errors are
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populated in quickfix window. If an argument is passed, 'expand' is used
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as file selector (useful for cases like `:GoTest ./...`).
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*:GoCoverage*
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:GoCoverage
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Create a coverage profile and open a browser to display the annotated
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source code of the current package.
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*:GoErrCheck*
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:GoErrCheck
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Check for unchecked errors in you current package. Errors are populated in
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quickfix window.
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*:GoFiles*
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:GoFiles
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Show source files that depends for the current package
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*:GoDeps*
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:GoDeps
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Show dependencies for the current package
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*:GoInstallBinaries*
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:GoInstallBinaries
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Download and Install all necessary Go tool binaries such as `godef`,
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`goimports`, `gocode`, etc.. under `g:go_bin_path`
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*:GoUpdateBinaries*
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:GoUpdateBinaries
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Download and Update previously installed Go tool binaries such as `godef`,
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`goimports`, `gocode`, etc.. under `g:go_bin_path`. This can be used to
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update the necessary Go binaries.
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*:GoImplements*
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:GoImplements
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Show 'implements' relation for a selected package. A list of interfaces
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for the type that implements an interface under the cursor (or selected
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package) is shown in a custom window. Hit `<enter>` to jump in a new tab
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or close it via `<c-c>`.
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*:GoRename*
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:GoRename [to]
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Rename the identifier under the cursor to the desired new name. If no
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argument is given a prompt will ask for the desired identifier.
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*:GoCallees*
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:GoCallees
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Show 'callees' relation for a selected package. A list of call targets
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for the type under the cursor (or selected package) is shown in a custom
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window. Hit `<enter>` to jump in a new tab or close it via `<c-c>`. For
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example if called for a interface method call, it will show all call targets
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that has implemented the method.
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===============================================================================
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MAPPINGS *go-mappings*
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vim-go has several <Plug> keys which can be used to create custom mappings
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For example, to create a mapping that `go run` the current file create a
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mapping for the `(go-run)`: >
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au FileType go nmap <leader>r <Plug>(go-run)
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As always one is free to create more advanced mappings or functions based
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with |go-commands|. Available <Plug> keys are:
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*(go-run)*
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Calls `go run` for the current file
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*(go-build)*
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Calls `go build` for the current package
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*(go-info)*
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Shows type information for the word under the cursor
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*(go-install)*
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Calls `go install` for the current package
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*(go-test)*
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Calls `go test` for the current package
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*(go-coverage)*
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Calls `go test -coverprofile-temp.out` for the current package
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*(go-vet)*
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Calls `go vet` for the current package
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*(go-files)*
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Show source files that depends for the current package
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*(go-deps)*
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Show dependencies for the current package
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*(go-doc)*
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Show the relevant GoDoc for the word under the cursor in a split window
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leftabove (default mode).
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*(go-doc-split)*
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Show the relevant GoDoc for the word under the cursor in a split window.
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*(go-doc-vertical)*
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Show the relevant GoDoc for the word under the cursor in a vertical split
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window.
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*(go-doc-tab)*
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Show the relevant GoDoc for the word under the cursor in a tab window.
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*(go-doc-browser)*
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Show the relevant GoDoc for the word under in browser
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*(go-def)*
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Goto declaration/definition. Results are shown in the current buffer.
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*(go-def-split)*
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Goto declaration/definition. Results are shown in a split window.
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*(go-def-vertical)*
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Goto declaration/definition. Results are shown in a vertical split window.
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*(go-def-tab)*
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Goto declaration/definition. Results are shown in a tab window.
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*(go-implements)*
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Show the interfaces that the type under the cursor implements.
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*(go-rename)*
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Rename the identifier under the cursor to the desired new name
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*(go-callees)*
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Show the call targets for the type under the cursor
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===============================================================================
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TEXT OBJECTS *go-text-objects*
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vim-go comes with several custom |text-objects| that can be used to operate
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upon regions of text. vim-go currently defines the following text objects:
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*go-v_af* *go-af*
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af "a function", select contents from a function definition to the
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closing bracket.
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*go-v_if* *go-if*
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if "inside a function", select contents of a function,
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excluding the function definition and the closing bracket.
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===============================================================================
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SETTINGS *go-settings*
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*'g:go_play_browser_command'*
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Use this option to change the browser that is used to open the snippet url
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posted to play.golang.org with |:GoPlay| or for the relevant documentation
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used with |:GoDocBrowser|. By default it tries to find it automatically for
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the current OS. >
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let g:play_browser_command = ''
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<
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*'g:go_play_open_browser'*
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Use this option to open browser after posting the snippet to play.golang.org
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with |:GoPlay|. By default it's enabled. >
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let g:go_play_open_browser = 1
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<
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*'g:go_auto_type_info'*
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Use this option to show the type info (|:GoInfo|) for the word under the cursor
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automatically. Whenever the cursor changes the type info will be updated.
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By default it's disabled >
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let g:go_auto_type_info = 0
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<
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*'g:go_fmt_autosave'*
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Use this option to auto |:GoFmt| on save. By default it's enabled >
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let g:go_fmt_autosave = 1
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<
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*'g:go_fmt_command'*
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Use this option to define which tool is used to gofmt. By default `gofmt` is
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used >
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let g:go_fmt_command = "gofmt"
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<
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*'g:go_fmt_options'*
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Use this option to add additional options to the |g:go_fmt_command|. Default
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is empty. >
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let g:go_fmt_options = ''
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<
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*'g:go_fmt_fail_silently'*
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Use this option to disable showing a quickfix window when |g:go_fmt_command|
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fails. By default it's disabled. >
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let g:go_fmt_fail_silently = 0
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<
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*'g:go_fmt_experimental'*
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Use this option to enable fmt's experimental mode. This experimental mode is
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superior to the current mode as it fully saves the undo history, so undo/redo
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doesn't break. However it's causing problems on some Vim versions. By default
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it's disabled. >
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let g:go_fmt_experimental = 1
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<
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*'g:go_doc_keywordprg_enabled'*
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Use this option to change the enable GoDoc to run on words under the cursor
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with the default K , keywordprg shortcut. This shortcut is by default set to
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use the program man. However in go using godoc is more idiomatic. Default is
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enabled. >
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let g:go_doc_keywordprg_enabled = 1
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<
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*'g:go_def_mapping_enabled'*
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Use this option to enabled/ disable the default mapping (`gd`) for GoDef
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enabled. Disabling it allows you to map something else to the mapping `gd`.
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Default is enabled. >
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let g:go_def_mapping_enabled = 1
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<
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*'g:go_doc_command'*
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Use this option to define which tool is used to godoc. By default `godoc` is
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used >
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let g:go_doc_command = "godoc"
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<
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*'g:go_doc_options'*
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Use this option to add additional options to the |g:go_doc_command|. Default
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is empty. >
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let g:go_doc_options = ''
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< *'g:go_bin_path'*
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Use this option to change default path for vim-go tools when using
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|GoInstallBinaries| and |GoUpdateBinaries|. If not set `$GOBIN` or
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`$GOPATH/bin` is used. >
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let g:go_bin_path = ""
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<
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*'g:go_snippet_engine'*
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Use this option to define the default snippet engine. By default "ultisnips"
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is used. Use "neosnippet" for neosnippet.vim: >
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let g:go_snippet_engine = "ultisnips"
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<
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*'g:go_highlight_array_whitespace_error'*
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Highlights white space after "[]". >
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let g:go_highlight_array_whitespace_error = 1
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<
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*'g:go_highlight_chan_whitespace_error'*
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Highlights white space around the communications operator that don't follow
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the standard style. >
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let g:go_highlight_chan_whitespace_error = 1
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<
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*'g:go_highlight_extra_types'*
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Highlights commonly used library types (io.Reader, etc.). >
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let g:go_highlight_extra_types = 1
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<
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*'g:go_highlight_space_tab_error'*
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Highlights instances of tabs following spaces. >
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let g:go_highlight_space_tab_error = 1
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<
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*'g:go_highlight_trailing_whitespace_error'*
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Highlights trailing white space. >
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let g:go_highlight_trailing_whitespace_error = 1
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<
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*'g:go_highlight_operators'*
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Highlights operators such as `:=` , `==`, `-=`, etc ...By default it's
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disabled. >
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let g:go_highlight_operators = 0
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<
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*'g:go_highlight_functions'*
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Highlights function names. By default it's disabled. >
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let g:go_highlight_functions = 0
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<
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*'g:go_highlight_methods'*
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Highlights method names. By default it's disabled. >
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let g:go_highlight_methods = 0
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<
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*'g:go_highlight_structs'*
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Highlights struct names. By default it's disabled. >
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let g:go_highlight_structs = 0
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<
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*'g:go_highlight_build_constraints'*
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Highlights build constraints. By default it's disabled. >
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let g:go_highlight_build_constraints = 0
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<
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*'g:go_textobj_enabled'*
|
|
|
|
Adds custom text objects. By default it's enabled. >
|
|
|
|
let g:go_textobj_enabled = 1
|
|
|
|
===============================================================================
|
|
TROUBLESHOOTING *go-troubleshooting*
|
|
|
|
I'm using Fish shell but have some problems using Vim-go~
|
|
|
|
First environment variables in Fish are applied differently, it should be like:
|
|
>
|
|
set -x GOPATH /your/own/gopath
|
|
<
|
|
Second, Vim needs a POSIX compatible shell (more info here:
|
|
https://github.com/dag/vim-fish#teach-a-vim-to-fish). If you use Fish to open
|
|
vim, it will make certainx shell based commands fail (means vim-go will fail
|
|
too). To overcome this problem change the default shell by adding the
|
|
following into your .vimrc (on the top of the file):
|
|
>
|
|
if $SHELL =~ 'fish'
|
|
set shell='/bin/sh'
|
|
endif
|
|
<
|
|
or
|
|
>
|
|
set shell='/bin/sh'
|
|
>
|
|
|
|
I'm seeing weirds errors during the startup~
|
|
|
|
If you see errors like this:
|
|
>
|
|
Error installing code.google.com/p/go.tools/cmd/goimports:
|
|
Error installing code.google.com/p/rog-go/exp/cmd/godef:
|
|
<
|
|
that means your local Go setup is broken or the remote website is down. For
|
|
example sometimes code.google.com times out. To test, just execute a simple go
|
|
get:
|
|
|
|
>
|
|
go get code.google.com/p/go.tools/cmd/goimports
|
|
<
|
|
You'll see a more detailed error. If this works, vim-go will work too.
|
|
|
|
===============================================================================
|
|
CREDITS *go-credits*
|
|
|
|
* Go Authors for offical vim plugins
|
|
* Gocode, Godef, Golint, Oracle, Goimports, Errcheck projects and authors of
|
|
those projects.
|
|
* Other vim-plugins, thanks for inspiration (vim-golang, go.vim, vim-gocode,
|
|
vim-godef)
|
|
* vim-go contributors: https://github.com/fatih/vim-go/graphs/contributors
|
|
|
|
|
|
vim:ft=help:et:ts=2:sw=2:sts=2:norl
|