go list 命令

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最新推荐文章于 2024-12-03 19:41:01 发布

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分类专栏： go 命令服务器开发工具文章标签： golang json 开发语言

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golist是一个用于查看Go包详细信息的工具，包括包路径、源代码目录、依赖等。它支持以模板格式或json格式输出。-m选项用于获取模块信息，如模块版本、更新等。-m-versions列出模块的可用版本，-u显示可用更新，-retracted展示已撤销的版本。

用法

usage: go list [-f format] [-json] [-m] [list flags] [build flags] [packages]

作用

查看package指定包的信息

包信息由这个结构体描述

type Package struct {
        Dir           string   // directory containing package sources
        ImportPath    string   // import path of package in dir
        ImportComment string   // path in import comment on package statement
        Name          string   // package name
        Doc           string   // package documentation string
        Target        string   // install path
        Shlib         string   // the shared library that contains this package (only set when -linkshared)
        Goroot        bool     // is this package in the Go root?
        Standard      bool     // is this package part of the standard Go library?
        Stale         bool     // would 'go install' do anything for this package?
        StaleReason   string   // explanation for Stale==true
        Root          string   // Go root or Go path dir containing this package
        ConflictDir   string   // this directory shadows Dir in $GOPATH
        BinaryOnly    bool     // binary-only package (no longer supported)
        ForTest       string   // package is only for use in named test
        Export        string   // file containing export data (when using -export)
        BuildID       string   // build ID of the compiled package (when using -export)
        Module        *Module // info about package's containing module, if any (can be nil)
        Match         []string // command-line patterns matching this package
        DepOnly       bool     // package is only a dependency, not explicitly listed

        // Source files
        GoFiles         []string   // .go source files (excluding CgoFiles, TestGoFiles, XTestGoFiles)
        CgoFiles        []string   // .go source files that import "C"
        CompiledGoFiles []string   // .go files presented to compiler (when using -compiled)
        IgnoredGoFiles []string   // .go source files ignored due to build constraints
        IgnoredOtherFiles []string // non-.go source files ignored due to build constraints
        CFiles          []string   // .c source files
        CXXFiles        []string   // .cc, .cxx and .cpp source files
        MFiles          []string   // .m source files
        HFiles          []string   // .h, .hh, .hpp and .hxx source files
        FFiles          []string   // .f, .F, .for and .f90 Fortran source files
        SFiles          []string   // .s source files
        SwigFiles       []string   // .swig files
        SwigCXXFiles    []string   // .swigcxx files
        SysoFiles       []string   // .syso object files to add to archive
        TestGoFiles     []string   // _test.go files in package
        XTestGoFiles    []string   // _test.go files outside package

        // Embedded files
        EmbedPatterns      []string // //go:embed patterns
        EmbedFiles         []string // files matched by EmbedPatterns
        TestEmbedPatterns []string // //go:embed patterns in TestGoFiles
        TestEmbedFiles     []string // files matched by TestEmbedPatterns
        XTestEmbedPatterns []string // //go:embed patterns in XTestGoFiles
        XTestEmbedFiles    []string // files matched by XTestEmbedPatterns

        // Cgo directives
        CgoCFLAGS    []string // cgo: flags for C compiler
        CgoCPPFLAGS []string // cgo: flags for C preprocessor
        CgoCXXFLAGS []string // cgo: flags for C++ compiler
        CgoFFLAGS    []string // cgo: flags for Fortran compiler
        CgoLDFLAGS   []string // cgo: flags for linker
        CgoPkgConfig []string // cgo: pkg-config names

        // Dependency information
        Imports      []string          // import paths used by this package
        ImportMap    map[string]string // map from source import to ImportPath (identity entries omitted)
        Deps         []string          // all (recursively) imported dependencies
        TestImports []string          // imports from TestGoFiles
        XTestImports []string          // imports from XTestGoFiles

        // Error information
        Incomplete bool            // this package or a dependency has an error
        Error      *PackageError   // error loading package
        DepsErrors []*PackageError // errors loading dependencies
    }

-json选项表示以json格式返回这个结构体

-f {{.字段}}参数返回结构体中的字段，这种方式称为包模板语法为默认方式，与-json方式互斥二选一，默认-f '{{.ImportPath}}'

-m选项返回Modulex结构体信息，同样有模板和json两种输出方式

type Module struct {
        Path       string        // module path
        Query      string        // version query corresponding to this version
        Version    string        // module version
        Versions   []string      // available module versions
        Replace    *Module       // replaced by this module
        Time       *time.Time    // time version was created
        Update     *Module       // available update (with -u)
        Main       bool          // is this the main module?
        Indirect   bool          // module is only indirectly needed by main module
        Dir        string        // directory holding local copy of files, if any
        GoMod      string        // path to go.mod file describing module, if any
        GoVersion string        // go version used in module
        Retracted []string      // retraction information, if any (with -retracted or -u)
        Deprecated string        // deprecation message, if any (with -u)
        Error      *ModuleError // error loading module
        Origin     any           // provenance of module
        Reuse      bool          // reuse of old module info is safe
    }