handle cd failing

Signed-off-by: Mattia Rizzolo <mapreri@ubuntu.com>

utils/bzr.sh

@@ -13,7 +13,7 @@ bzr_clone_repo() {
     if [[ ! -d "${dest}" ]]; then
         bzr branch "${url}" "${dest}" -q
     else
-        (cd "${dest}"; bzr pull -q)
+        (cd "${dest}" && bzr pull -q)
     fi
 }
 
@@ -31,7 +31,7 @@ bzr_needs_update() {
         return 0
     fi
 
-    latest="$(cd "${repo}"; bzr revno)"
+    latest="$(cd "${repo}" && bzr revno)"
 
     if [[ "$(cat "${current}")" != "${latest}" ]]; then
         return 0
@@ -51,5 +51,5 @@ bzr_save_revision() {
     repo="${DIR_BASE}/${name}/repo"
     dest="${build}/.revision"
 
-    (cd "${repo}"; bzr revno) > "${dest}"
+    (cd "${repo}" && bzr revno) > "${dest}"
 }

utils/git.sh

@@ -13,7 +13,7 @@ git_clone_repo() {
     if [[ ! -d "${dest}" ]]; then
         git clone "${url}" "${dest}" -q
     else
-        (cd "${dest}"; git pull -q)
+        (cd "${dest}" && git pull -q)
     fi
 
     echo "${dest}"
@@ -33,7 +33,7 @@ git_needs_update() {
         return 0
     fi
 
-    latest="$(cd ${repo}; git rev-parse master)"
+    latest="$(cd "${repo}" && git rev-parse master)"
 
     if [[ "$(cat "${current}")" != "${latest}" ]]; then
         return 0
@@ -53,5 +53,5 @@ git_save_revision() {
     repo="${DIR_BASE}/${name}/repo"
     dest="${build}/.commit"
 
-    (cd "${repo}"; git rev-parse master) > "${dest}"
+    (cd "${repo}" && git rev-parse master) > "${dest}"
 }