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- Log -----------------------------------------------------------------
commit 6c2cad3cc201aaa10366af1c1e6c0d44a9f03baa
Author: Ky-Anh Huynh <ky...@theslinux.org>
Date: Tue Apr 15 21:24:24 2014 +0700
00_core: Add :require function to check if programs exist
-----------------------------------------------------------------------
Summary of changes:
_utils/lib/00_core.sh | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/_utils/lib/00_core.sh b/_utils/lib/00_core.sh
index 9a85afc..c38731e 100644
--- a/_utils/lib/00_core.sh
+++ b/_utils/lib/00_core.sh
@@ -22,6 +22,17 @@ _die() {
exit 1
}
+:require() {
+ while (( $# )); do
+ which "$1" >/dev/null 2>&1 \
+ || {
+ echo >&2 ":: Error: unable to locate '$1' program"
+ return 127
+ }
+ shift
+ done
+}
+
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