feat(i18n): add make i18n_extract and make i18n_merge

Flow is as follows:

    <add some new i18n.Message in code>
    make i18n_extract
    <fill the generated translations/translate.*.toml>
    make i18n_merge
    <perhaps delete translations/translate.*.toml> ?

.gitignore

@@ -19,6 +19,9 @@ _cgo_export.*
 
 _testmain.go
 
+# Translation files
+translations/translate.*.toml
+
 # Vim files https://github.com/github/gitignore/blob/master/Global/Vim.gitignore
 # swap
 [._]*.s[a-w][a-z]

Makefile

@@ -33,3 +33,10 @@ install_deps:
 
 clean:
 	rm -rf $(BIN)
+
+i18n_extract:
+	goi18n extract -outdir translations
+	goi18n merge -outdir translations translations/*
+
+i18n_merge:
+	goi18n merge -outdir translations translations/*

translations/active.en.toml

@@ -5,3 +5,7 @@ other = "Error"
 [ExclusiveFlagsValidationError]
 description = "error shown when multiple exclusive flags are provided (group flags, offending flags)"
 other = "if any flags in the group [%v] are set none of the others can be; %v were all set"
+
+[RunHelpTip]
+description = "tip shown when a command fails (command path)"
+other = "Run '%v --help' for usage."

translations/active.fr.toml

@@ -1,7 +1,14 @@
 [Error]
 description = "prefix of error messages"
+hash = "sha1-7dcb56355a3ddc7ff7e5ccd6522507999ca7f238"
 other = "Erreur"
 
 [ExclusiveFlagsValidationError]
 description = "error shown when multiple exclusive flags are provided (group flags, offending flags)"
+hash = "sha1-221b98bada52cfc2932f9aa5142b653b46baded6"
 other = "les options [%v] sont exclusives, mais les options %v ont été fournies"
+
+[RunHelpTip]
+description = "tip shown when a command fails (command path)"
+hash = "sha1-e1d2c4cccd484df365c3249347d5172981929b88"
+other = "Essayez '%v --help' pour obtenir de l'aide."