1 files changed, 69 insertions, 25 deletions

diff --git a/git-sh-i18n.sh b/git-sh-i18n.sh
index e672366..6a27f68 100644
--- a/git-sh-i18n.sh
+++ b/git-sh-i18n.sh
@@ -2,47 +2,91 @@
 #
 # Copyright (c) 2010 Ævar Arnfjörð Bjarmason
 #
-# This is a skeleton no-op implementation of gettext for Git. It'll be
-# replaced by something that uses gettext.sh in a future patch series.
+# This is Git's interface to gettext.sh. See po/README for usage
+# instructions.
 
-if test -z "$GIT_GETTEXT_POISON"
+# Export the TEXTDOMAIN* data that we need for Git
+TEXTDOMAIN=git
+export TEXTDOMAIN
+if test -z "$GIT_TEXTDOMAINDIR"
 then
-	gettext () {
-		printf "%s" "$1"
-	}
+	TEXTDOMAINDIR="@@LOCALEDIR@@"
+else
+	TEXTDOMAINDIR="$GIT_TEXTDOMAINDIR"
+fi
+export TEXTDOMAINDIR
 
-	gettextln() {
-		printf "%s\n" "$1"
-	}
+# First decide what scheme to use...
+GIT_INTERNAL_GETTEXT_SH_SCHEME=fallthrough
+if test -n "@@USE_GETTEXT_SCHEME@@"
+then
+	GIT_INTERNAL_GETTEXT_SH_SCHEME="@@USE_GETTEXT_SCHEME@@"
+elif test -n "$GIT_INTERNAL_GETTEXT_TEST_FALLBACKS"
+then
+	: no probing necessary
+elif test -n "$GIT_GETTEXT_POISON"
+then
+	GIT_INTERNAL_GETTEXT_SH_SCHEME=poison
+elif type gettext.sh >/dev/null 2>&1
+then
+	# GNU libintl's gettext.sh
+	GIT_INTERNAL_GETTEXT_SH_SCHEME=gnu
+elif test "$(gettext -h 2>&1)" = "-h"
+then
+	# gettext binary exists but no gettext.sh. likely to be a gettext
+	# binary on a Solaris or something that is not GNU libintl and
+	# lack eval_gettext.
+	GIT_INTERNAL_GETTEXT_SH_SCHEME=gettext_without_eval_gettext
+fi
+export GIT_INTERNAL_GETTEXT_SH_SCHEME
 
+# ... and then follow that decision.
+case "$GIT_INTERNAL_GETTEXT_SH_SCHEME" in
+gnu)
+	# Use libintl's gettext.sh, or fall back to English if we can't.
+	. gettext.sh
+	;;
+gettext_without_eval_gettext)
+	# Solaris has a gettext(1) but no eval_gettext(1)
 	eval_gettext () {
-		printf "%s" "$1" | (
+		gettext "$1" | (
 			export PATH $(git sh-i18n--envsubst --variables "$1");
 			git sh-i18n--envsubst "$1"
 		)
 	}
-
-	eval_gettextln () {
-		printf "%s\n" "$1" | (
-			export PATH $(git sh-i18n--envsubst --variables "$1");
-			git sh-i18n--envsubst "$1"
-		)
-	}
-else
+	;;
+poison)
+	# Emit garbage so that tests that incorrectly rely on translatable
+	# strings will fail.
 	gettext () {
 		printf "%s" "# GETTEXT POISON #"
 	}
 
-	gettextln () {
-		printf "%s\n" "# GETTEXT POISON #"
-	}
-
 	eval_gettext () {
 		printf "%s" "# GETTEXT POISON #"
 	}
+	;;
+*)
+	gettext () {
+		printf "%s" "$1"
+	}
 
-	eval_gettextln () {
-		printf "%s\n" "# GETTEXT POISON #"
+	eval_gettext () {
+		printf "%s" "$1" | (
+			export PATH $(git sh-i18n--envsubst --variables "$1");
+			git sh-i18n--envsubst "$1"
+		)
 	}
-fi
+	;;
+esac
+
+# Git-specific wrapper functions
+gettextln () {
+	gettext "$1"
+	echo
+}
 
+eval_gettextln () {
+	eval_gettext "$1"
+	echo
+}