11package templatelib
22
33import (
4- "encoding/json"
54 "fmt"
65 "os"
76 "reflect"
87 "strings"
98 "text/template"
9+
10+ "github.com/Masterminds/sprig/v3"
1011)
1112
1213func swapStringsFuncBoolArgsOrder (a func (string , string ) bool ) func (string , string ) bool {
@@ -68,55 +69,33 @@ func stringsModifierActionFactory(a func(string, string) string) func([]string,
6869 }
6970}
7071
71- var FuncMap = template.FuncMap {
72- // {{- $isGitHub := hasPrefix "https://github.com/" $url -}}
73- // {{- $isHtml := hasSuffix ".html" $url -}}
74- "hasPrefix" : swapStringsFuncBoolArgsOrder (strings .HasPrefix ),
75- "hasSuffix" : swapStringsFuncBoolArgsOrder (strings .HasSuffix ),
76-
77- // {{- $hugeIfTrue := .SomeValue | ternary "HUGE" "not so huge" -}}
78- // if .SomeValue is truthy, $hugeIfTrue will be "HUGE"
79- // (otherwise, "not so huge")
80- "ternary" : func (truthy interface {}, falsey interface {}, val interface {}) interface {} {
81- if t , ok := template .IsTrue (val ); ! ok {
82- panic (fmt .Sprintf (`template.IsTrue(%+v) says things are NOT OK` , val ))
83- } else if t {
84- return truthy
85- } else {
86- return falsey
72+ func FuncMap () template.FuncMap {
73+ funcMap := sprig .TxtFuncMap ()
74+
75+ // https://github.com/Masterminds/sprig/pull/276
76+ funcMap ["ternary" ] = func (vt interface {}, vf interface {}, v interface {}) interface {} {
77+ if truth , ok := template .IsTrue (v ); ! ok {
78+ panic (fmt .Sprintf (`template.IsTrue(%+v) says things are NOT OK` , v ))
79+ } else if truth {
80+ return vt
8781 }
88- },
82+ return vf
83+ }
8984
90- // First Tag : {{- .Tags | first -}}
91- // Last Tag: {{- .Tags | last -}}
92- "first" : thingsActionFactory ( "first "true , func ( args [] interface {}, arg interface {}) interface {} { return arg }),
93- "last" : thingsActionFactory ( "last" , false , func ( args [] interface {}, arg interface {}) interface {} { return arg }),
85+ // Everybody : {{- join ", " .Names -}}
86+ // Concat: {{- join "/" "https://github.com" "jsmith" "some-repo" -}}
87+ funcMap [ "join" ] = stringsActionFactory ( "join "true , strings . Join )
88+ // (this differs slightly from the Sprig "join" in that it accepts either a list of strings or multiple arguments - Sprig instead has an explicit "list" function which can create a list of strings *from* a list of arguments so that multiple-signature usability like this is not necessary)
9489
9590 // JSON data dump: {{ json . }}
9691 // (especially nice for taking data and piping it to "jq")
9792 // (ie "some-tool inspect --format '{{ json . }}' some-things | jq .")
98- "json" : func (v interface {}) (string , error ) {
99- j , err := json .Marshal (v )
100- return string (j ), err
101- },
102-
103- // Everybody: {{- join ", " .Names -}}
104- // Concat: {{- join "/" "https://github.com" "jsmith" "some-repo" -}}
105- "join" : stringsActionFactory ("join" , true , strings .Join ),
106-
107- // {{- $mungedUrl := $url | replace "git://" "https://" | trimSuffixes ".git" -}}
108- // turns: git://github.com/jsmith/some-repo.git
109- // into: https://github.com/jsmith/some-repo
110- "trimPrefixes" : stringsActionFactory ("trimPrefixes" , false , stringsModifierActionFactory (strings .TrimPrefix )),
111- "trimSuffixes" : stringsActionFactory ("trimSuffixes" , false , stringsModifierActionFactory (strings .TrimSuffix )),
112- "replace" : stringsActionFactory ("replace" , false , func (strs []string , str string ) string {
113- return strings .NewReplacer (strs ... ).Replace (str )
114- }),
93+ funcMap ["json" ] = funcMap ["toJson" ]
11594
11695 // {{- getenv "PATH" -}}
11796 // {{- getenv "HOME" "no HOME set" -}}
11897 // {{- getenv "HOME" "is set" "is NOT set (or is empty)" -}}
119- "getenv" : thingsActionFactory ("getenv" , true , func (args []interface {}, arg interface {}) interface {} {
98+ funcMap [ "getenv" ] = thingsActionFactory ("getenv" , true , func (args []interface {}, arg interface {}) interface {} {
12099 var (
121100 val = os .Getenv (arg .(string ))
122101 setVal interface {} = val
@@ -134,5 +113,13 @@ var FuncMap = template.FuncMap{
134113 } else {
135114 return unsetVal
136115 }
137- }),
116+ })
117+
118+ // {{- $mungedUrl := $url | replace "git://" "https://" | trimSuffixes ".git" -}}
119+ // turns: git://github.com/jsmith/some-repo.git
120+ // into: https://github.com/jsmith/some-repo
121+ funcMap ["trimPrefixes" ] = stringsActionFactory ("trimPrefixes" , false , stringsModifierActionFactory (strings .TrimPrefix ))
122+ funcMap ["trimSuffixes" ] = stringsActionFactory ("trimSuffixes" , false , stringsModifierActionFactory (strings .TrimSuffix ))
123+
124+ return funcMap
138125}
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