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Steal regexMatch from consul-template (#219)

Makes it possible to do pattern-based template blocks.
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blalor authored and aelsabbahy committed Apr 23, 2017
1 parent f75c184 commit fc1bc88467ad0b8bec1136936ef044072a93ca89
Showing with 18 additions and 6 deletions.
  1. +3 −2 docs/
  2. +1 −1 integration-tests/goss/goss-service.yaml
  3. +14 −3 template.go
@@ -773,6 +773,7 @@ Available functions beyond text/template [built-in functions](
* `getEnv "var" ["default"]` - A more forgiving env var lookup. If key is missing either "" or default (if provided) is returned.
* `readFile "fileName"` - Reads file content into a a string, trims whitespace. Useful when a file contains a token.
* **NOTE:** Goss will error out during during the parsing phase if the file does not exist, no tests will be executed.
* `regexMatch "(some)?reg[eE]xp"` - Tests the piped input against the regular expression argument.
**NOTE:** gossfiles containing text/template `{{}}` controls will no longer work with `goss add/autoadd`. One way to get around this is to split your template and static goss files and use [gossfile](#gossfile) to import.
@@ -829,8 +830,8 @@ package:
# This test is only when OS=centos variable is defined
{{if eq .Env.OS "centos"}}
# This test is only when the OS environment variable matches the pattern
{{if .Env.OS | "[Cc]ent(OS|os)"}}
installed: true
@@ -3,7 +3,7 @@ service:
enabled: false
running: false
{{if eq .Env.OS "centos7"}}
{{ if .Env.OS | regexMatch "centos[7]" }}
@@ -6,6 +6,7 @@ import (
@@ -32,10 +33,20 @@ func getEnv(key string, def ...string) string {
return os.Getenv(key)
func regexMatch(re, s string) (bool, error) {
compiled, err := regexp.Compile(re)
if err != nil {
return false, err
return compiled.MatchString(s), nil
var funcMap = map[string]interface{}{
"mkSlice": mkSlice,
"readFile": readFile,
"getEnv": getEnv,
"mkSlice": mkSlice,
"readFile": readFile,
"getEnv": getEnv,
"regexMatch": regexMatch,
func NewTemplateFilter(varsFile string) func([]byte) []byte {

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