diff --git a/bin/setup-sourcezap b/bin/setup-sourcezap
index b39b3d0..d435ad8 100755
--- a/bin/setup-sourcezap
+++ b/bin/setup-sourcezap
@@ -10,15 +10,7 @@ doas="${localbase}"/etc/doas.conf
 
 ##
 # functions
-printok()
-{
-    "${libexec}"/utils/printok "${1}"
-}
-
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main
diff --git a/libexec/sourcezap/commands/sourcezap-checkout b/libexec/sourcezap/commands/sourcezap-checkout
index dc6ca76..91bd050 100755
--- a/libexec/sourcezap/commands/sourcezap-checkout
+++ b/libexec/sourcezap/commands/sourcezap-checkout
@@ -10,20 +10,7 @@ branch=$2
 
 ##
 # functions
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
-
-printok()
-{
-    "${libexec}"/utils/printok "${1}"
-}
-
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main
@@ -42,9 +29,7 @@ if [ ! -e "${gitdir}/.git" ]; then
     exit 1
 fi
 
-set -x
 cd "${gitdir}"
 git fetch origin
 git checkout "${branch}" || git checkout -t origin/"${branch}"
-set +x
 printok "${branch} checked out"
diff --git a/libexec/sourcezap/commands/sourcezap-clone b/libexec/sourcezap/commands/sourcezap-clone
index 6d78986..4bb5a51 100755
--- a/libexec/sourcezap/commands/sourcezap-clone
+++ b/libexec/sourcezap/commands/sourcezap-clone
@@ -11,20 +11,7 @@ branch=$3
 
 ##
 # functions
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
-
-printok()
-{
-    "${libexec}"/utils/printok "${1}"
-}
-
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main
diff --git a/libexec/sourcezap/commands/sourcezap-install b/libexec/sourcezap/commands/sourcezap-install
index 735032c..e82de5e 100755
--- a/libexec/sourcezap/commands/sourcezap-install
+++ b/libexec/sourcezap/commands/sourcezap-install
@@ -12,6 +12,8 @@ revfile=$3
 
 ##
 # functions
+. "${libexec}"/functions.sh
+
 perform_update()
 {
     rev=$(cat "${revfile}")
@@ -63,21 +65,6 @@ run_install()
     install -o root -g _sourcezap -m "${mode}" -v "$@"
 }
 
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
-
-printok()
-{
-    "${libexec}"/utils/printok "${1}"
-}
-
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
-
 ##
 # main
 if [ "$(id -u)" != "0" ]; then
diff --git a/libexec/sourcezap/commands/sourcezap-pull b/libexec/sourcezap/commands/sourcezap-pull
index 7171caf..c389e09 100755
--- a/libexec/sourcezap/commands/sourcezap-pull
+++ b/libexec/sourcezap/commands/sourcezap-pull
@@ -9,20 +9,7 @@ gitdir=$1
 
 ##
 # functions
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
-
-printok()
-{
-    "${libexec}"/utils/printok "${1}"
-}
-
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main
diff --git a/libexec/sourcezap/commands/sourcezap-rm b/libexec/sourcezap/commands/sourcezap-rm
index 963b28f..532a654 100755
--- a/libexec/sourcezap/commands/sourcezap-rm
+++ b/libexec/sourcezap/commands/sourcezap-rm
@@ -10,6 +10,8 @@ installdir=$2
 
 ##
 # functions
+. "${libexec}"/functions.sh
+
 erase()
 {
     dir="${1}"
@@ -24,11 +26,6 @@ erase()
     echo
 }
 
-printerr()
-{
-    "${libexec}"/utils/printerr "${1}"
-}
-
 ##
 # main
 if [ "$(id -u)" != "0" ]; then
diff --git a/libexec/sourcezap/functions.sh b/libexec/sourcezap/functions.sh
new file mode 100644
index 0000000..105480d
--- /dev/null
+++ b/libexec/sourcezap/functions.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+git()
+{
+    "${libexec}"/utils/git/run "${@}"
+}
+
+printok()
+{
+    "${libexec}"/utils/printok "${@}"
+}
+
+printerr()
+{
+    "${libexec}"/utils/printerr "${@}"
+}
diff --git a/libexec/sourcezap/utils/git/get-changed-files b/libexec/sourcezap/utils/git/get-changed-files
index ae70856..ebbcc13 100755
--- a/libexec/sourcezap/utils/git/get-changed-files
+++ b/libexec/sourcezap/utils/git/get-changed-files
@@ -10,10 +10,7 @@ commit=$2
 
 ##
 # functions
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main
diff --git a/libexec/sourcezap/utils/git/get-removed-files b/libexec/sourcezap/utils/git/get-removed-files
index 4ce4492..ff5695e 100755
--- a/libexec/sourcezap/utils/git/get-removed-files
+++ b/libexec/sourcezap/utils/git/get-removed-files
@@ -10,10 +10,7 @@ commit=$2
 
 ##
 # functions
-git()
-{
-    "${libexec}"/utils/git/run "${@}"
-}
+. "${libexec}"/functions.sh
 
 ##
 # main