mirror of
https://github.com/spf13/cobra
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c9edb78acc
It's questionable that a default license makes any sense from a legal perspective. If the tool created the license without the user choosing it, then it may not even be applicable. Best to let the user choose their license with intent.
121 lines
3.3 KiB
Go
121 lines
3.3 KiB
Go
// Copyright © 2021 Steve Francia <spf@spf13.com>.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Parts inspired by https://github.com/ryanuber/go-license
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package cmd
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import (
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"fmt"
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"strings"
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"time"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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// Licenses contains all possible licenses a user can choose from.
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var Licenses = make(map[string]License)
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// License represents a software license agreement, containing the Name of
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// the license, its possible matches (on the command line as given to cobra),
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// the header to be used with each file on the file's creating, and the text
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// of the license
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type License struct {
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Name string // The type of license in use
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PossibleMatches []string // Similar names to guess
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Text string // License text data
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Header string // License header for source files
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}
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func init() {
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// Allows a user to not use a license.
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Licenses["none"] = License{"None", []string{"none", "false"}, "", ""}
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initApache2()
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initMit()
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initBsdClause3()
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initBsdClause2()
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initGpl2()
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initGpl3()
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initLgpl()
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initAgpl()
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}
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// getLicense returns license specified by user in flag or in config.
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// If user didn't specify the license, it returns none
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//
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// TODO: Inspect project for existing license
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func getLicense() License {
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// If explicitly flagged, use that.
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if userLicense != "" {
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return findLicense(userLicense)
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}
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// If user wants to have custom license, use that.
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if viper.IsSet("license.header") || viper.IsSet("license.text") {
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return License{Header: viper.GetString("license.header"),
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Text: viper.GetString("license.text")}
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}
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// If user wants to have built-in license, use that.
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if viper.IsSet("license") {
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return findLicense(viper.GetString("license"))
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}
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// If user didn't set any license, use none by default
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return Licenses["none"]
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}
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func copyrightLine() string {
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author := viper.GetString("author")
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year := viper.GetString("year") // For tests.
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if year == "" {
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year = time.Now().Format("2006")
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}
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return "Copyright © " + year + " " + author
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}
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// findLicense looks for License object of built-in licenses.
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// If it didn't find license, then the app will be terminated and
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// error will be printed.
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func findLicense(name string) License {
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found := matchLicense(name)
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if found == "" {
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cobra.CheckErr(fmt.Errorf("unknown license: " + name))
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}
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return Licenses[found]
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}
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// matchLicense compares the given a license name
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// to PossibleMatches of all built-in licenses.
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// It returns blank string, if name is blank string or it didn't find
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// then appropriate match to name.
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func matchLicense(name string) string {
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if name == "" {
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return ""
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}
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for key, lic := range Licenses {
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for _, match := range lic.PossibleMatches {
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if strings.EqualFold(name, match) {
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return key
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}
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}
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}
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return ""
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}
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