variables

package
v0.6.20 Latest Latest
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 Go to latest Published: Jul 18, 2022 License: MPL-2.0 Imports: 17 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func AddEnv 

func AddEnv(envVars []string, key, value string) []string

AddEnv takes in a slice of env vars in key-value format and a new key-value string to it, taking care of possible overrides.

func ParseFlagArgs added in v0.6.15 

func ParseFlagArgs(args []string) ([]string, error)

ParseFlagArgs parses flag-form args. These can be represented as `--arg=value` or `--arg value`. The result is a slice that can be passed in to ParseArgs or to ParseCommandLineArgs.

func ParseFlagArgsWithNonFlags added in v0.6.15 

func ParseFlagArgsWithNonFlags(args []string) ([]string, []string, error)

ParseFlagArgsWithNonFlags parses flag-form args together with any possible optional additional args. e.g. "--flag1=value arg1 --flag2=value --flag3=value arg2 arg3".

func ParseKeyValue 

func ParseKeyValue(s string) (string, string, bool)

ParseKeyValue pases a key-value type into its parts if a key value needs to contain a = or \, it must be escapped using '\=', and '\\' respectively once an unescaped '=' is found, all remaining chars will be used as-is without the need to be escaped. the key and value are returned, along with a bool that is true if a value was defined (i.e. an equal was found)

e.g. ParseKeyValue("foo") -> `foo`, “, false 

ParseKeyValue("foo=")      -> `foo`,  ``,       true
ParseKeyValue("foo=bar")   -> `foo`,  `bar`,    true
ParseKeyValue(`f\=oo=bar`) -> `f=oo`, `bar`,    true
ParseKeyValue(`foo=bar=`)  -> `foo",  `bar=`,   true
ParseKeyValue(`foo=bar\=`) -> `foo",  `bar\=`,  true

func SetPlatformArgs added in v0.6.15 

func SetPlatformArgs(s *Scope, platr *platutil.Resolver)

SetPlatformArgs sets the platform-specific built-in args to a specific platform.

Types

type Collection 

type Collection struct {
	// contains filtered or unexported fields
}

Collection is a collection of variable scopes used within a single target.

func NewCollection 

func NewCollection(opts NewCollectionOpt) *Collection

NewCollection creates a new Collection to be used in the context of a target.

func (*Collection) AbsRef added in v0.6.15 

func (c *Collection) AbsRef() domain.Reference

AbsRef returns a ref that any other reference should be relative to as part of the stack frame.

func (*Collection) DeclareArg added in v0.6.15 

func (c *Collection) DeclareArg(name string, defaultValue string, global bool, pncvf ProcessNonConstantVariableFunc) (string, string, error)

DeclareArg declares an arg. The effective value may be different than the default, if the variable has been overridden.

func (*Collection) DeclareEnv added in v0.6.15 

func (c *Collection) DeclareEnv(name string, value string)

DeclareEnv declares an env var.

func (*Collection) EnterFrame added in v0.6.15 

func (c *Collection) EnterFrame(frameName string, absRef domain.Reference, overriding *Scope, globals *Scope, globalImports map[string]domain.ImportTrackerVal)

EnterFrame creates a new stack frame.

func (*Collection) EnvVars added in v0.6.15 

func (c *Collection) EnvVars() *Scope

EnvVars returns a copy of the env vars.

func (*Collection) ExitFrame added in v0.6.15 

func (c *Collection) ExitFrame()

ExitFrame exits the latest stack frame.

func (*Collection) Expand 

func (c *Collection) Expand(word string, shellOut shell.EvalShellOutFn) (string, error)

Expand expands variables within the given word.

func (*Collection) ExpandOld added in v0.6.15 

func (c *Collection) ExpandOld(word string) string

ExpandOld expands variables within the given word, it does not peform shelling-out. it will eventually be removed when the ShellOutAnywhere feature is fully-adopted

func (*Collection) GetActive added in v0.6.15 

func (c *Collection) GetActive(name string) (string, bool)

GetActive returns an active variable by name.

func (*Collection) Globals added in v0.6.15 

func (c *Collection) Globals() *Scope

Globals returns a copy of the globals.

func (*Collection) Imports added in v0.6.15 

func (c *Collection) Imports() *domain.ImportTracker

Imports returns the imports tracker of the current frame.

func (*Collection) IsStackAtBase added in v0.6.15 

func (c *Collection) IsStackAtBase() bool

IsStackAtBase returns whether the stack has size 1.

func (*Collection) Overriding added in v0.6.15 

func (c *Collection) Overriding() *Scope

Overriding returns a copy of the overriding args.

func (*Collection) ResetEnvVars added in v0.6.15 

func (c *Collection) ResetEnvVars(envs *Scope)

ResetEnvVars resets the collection's env vars.

func (*Collection) SetArg added in v0.6.15 

func (c *Collection) SetArg(name string, value string)

SetArg sets the value of an arg.

func (*Collection) SetGlobals added in v0.6.15 

func (c *Collection) SetGlobals(globals *Scope)

SetGlobals sets the global variables.

func (*Collection) SetOverriding added in v0.6.15 

func (c *Collection) SetOverriding(overriding *Scope)

SetOverriding sets the overriding args.

func (*Collection) SetPlatform added in v0.6.15 

func (c *Collection) SetPlatform(platr *platutil.Resolver)

SetPlatform sets the platform, updating the builtin args.

func (*Collection) SortedActiveVariables 

func (c *Collection) SortedActiveVariables() []string

SortedActiveVariables returns the active variable names in a sorted slice.

func (*Collection) SortedOverridingVariables 

func (c *Collection) SortedOverridingVariables() []string

SortedOverridingVariables returns the overriding variable names in a sorted slice.

func (*Collection) StackString added in v0.6.15 

func (c *Collection) StackString() string

StackString returns the stack as a string.

func (*Collection) UnsetArg added in v0.6.15 

func (c *Collection) UnsetArg(name string)

UnsetArg removes an arg if it exists.

type DefaultArgs added in v0.6.15 

type DefaultArgs struct {
	EarthlyVersion  string
	EarthlyBuildSha string
}

DefaultArgs contains additional builtin ARG values which need to be passed in from outside of the scope of this package.

type NewCollectionOpt added in v0.6.15 

type NewCollectionOpt struct {
	Console          conslogging.ConsoleLogger
	Target           domain.Target
	Push             bool
	PlatformResolver *platutil.Resolver
	NativePlatform   specs.Platform
	GitMeta          *gitutil.GitMetadata
	BuiltinArgs      DefaultArgs
	OverridingVars   *Scope
	Features         *features.Features
	GlobalImports    map[string]domain.ImportTrackerVal
}

NewCollectionOpt contains supported arguments which the `NewCollection` function may accept.

type ProcessNonConstantVariableFunc 

type ProcessNonConstantVariableFunc func(name string, expression string) (value string, argIndex int, err error)

ProcessNonConstantVariableFunc is a function which takes in an expression and turns it into a state, target intput and arg index.

type Scope added in v0.6.15 

type Scope struct {
	// contains filtered or unexported fields
}

Scope represents a variable scope.

func BuiltinArgs added in v0.6.15 

func BuiltinArgs(target domain.Target, platr *platutil.Resolver, gitMeta *gitutil.GitMetadata, defaultArgs DefaultArgs, ftrs *features.Features, push bool) *Scope

BuiltinArgs returns a scope containing the builtin args.

func CombineScopes added in v0.6.15 

func CombineScopes(scopes ...*Scope) *Scope

CombineScopes combines all the variables across all scopes, with left precedence.

func NewScope added in v0.6.15 

func NewScope() *Scope

NewScope creates a new variable scope.

func ParseArgs added in v0.6.15 

func ParseArgs(args []string, pncvf ProcessNonConstantVariableFunc, current *Collection) (*Scope, error)

ParseArgs parses args passed as --build-arg to an Earthly command, such as BUILD or FROM.

func ParseCommandLineArgs added in v0.6.15 

func ParseCommandLineArgs(args []string) (*Scope, error)

ParseCommandLineArgs parses a slice of old build args (the ones passed via --build-arg) and returns a new scope.

func ParseEnvVars added in v0.6.15 

func ParseEnvVars(envVars []string) *Scope

ParseEnvVars parses env vars from a slice of strings of the form "key=value".

func (*Scope) ActiveValueMap added in v0.6.15 

func (s *Scope) ActiveValueMap() map[string]string

ActiveValueMap returns a map of the values of the active variables.

func (*Scope) AddActive added in v0.6.15 

func (s *Scope) AddActive(name string, variable string)

AddActive adds and activates a variable in the collection.

func (*Scope) AddInactive added in v0.6.15 

func (s *Scope) AddInactive(name string, variable string)

AddInactive adds an inactive variable in the collection.

func (*Scope) AllValueMap added in v0.6.15 

func (s *Scope) AllValueMap() map[string]string

AllValueMap returns a map of the values of all the variables.

func (*Scope) Clone added in v0.6.15 

func (s *Scope) Clone() *Scope

Clone returns a copy of the scope.

func (*Scope) GetActive added in v0.6.15 

func (s *Scope) GetActive(name string) (string, bool)

GetActive returns an active variable by name.

func (*Scope) GetAny added in v0.6.15 

func (s *Scope) GetAny(name string) (string, bool)

GetAny returns a variable by name, even if it is not active.

func (*Scope) Remove added in v0.6.15 

func (s *Scope) Remove(name string)

Remove removes a variable from the scope.

func (*Scope) SortedActive added in v0.6.15 

func (s *Scope) SortedActive() []string

SortedActive returns the active variable names in a sorted slice.

func (*Scope) SortedAny added in v0.6.15 

func (s *Scope) SortedAny() []string

SortedAny returns the variable names in a sorted slice.

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