argsmerge.go

     1  // Copyright 2022 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"slices"
    10  	"strconv"
    11  )
    12  
    13  type argvalues struct {
    14  	osargs []string
    15  	goos   string
    16  	goarch string
    17  }
    18  
    19  type argstate struct {
    20  	state       argvalues
    21  	initialized bool
    22  }
    23  
    24  func (a *argstate) Merge(state argvalues) {
    25  	if !a.initialized {
    26  		a.state = state
    27  		a.initialized = true
    28  		return
    29  	}
    30  	if !slices.Equal(a.state.osargs, state.osargs) {
    31  		a.state.osargs = nil
    32  	}
    33  	if state.goos != a.state.goos {
    34  		a.state.goos = ""
    35  	}
    36  	if state.goarch != a.state.goarch {
    37  		a.state.goarch = ""
    38  	}
    39  }
    40  
    41  func (a *argstate) ArgsSummary() map[string]string {
    42  	m := make(map[string]string)
    43  	if len(a.state.osargs) != 0 {
    44  		m["argc"] = strconv.Itoa(len(a.state.osargs))
    45  		for k, a := range a.state.osargs {
    46  			m[fmt.Sprintf("argv%d", k)] = a
    47  		}
    48  	}
    49  	if a.state.goos != "" {
    50  		m["GOOS"] = a.state.goos
    51  	}
    52  	if a.state.goarch != "" {
    53  		m["GOARCH"] = a.state.goarch
    54  	}
    55  	return m
    56  }
    57
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