ebuild: reorder and uniformise PATH

Make the search PATH order prefer the secondary hierarchy (/usr) as it is the
primary point for user binaries.  Still permit falling back to the primary
binary (user and system) directories in the case an executable is not found in
the user supplied path, nor the secondary hierarchy.

Make the PATH setup uniform across normal and binary ebuilds as well as during
VDB updates.

3 files changed, 15 insertions, 9 deletions

diff --git a/paludis/repositories/e/ebuild/ebuild.bash b/paludis/repositories/e/ebuild/ebuild.bash
index 6a893bc..9683844 100755
--- a/paludis/repositories/e/ebuild/ebuild.bash
+++ b/paludis/repositories/e/ebuild/ebuild.bash
@@ -52,7 +52,7 @@ ebuild_sanitise_envvars()
 
     # Force a few more things into PATH, since some users have crazy setups.
     # See ticket:374.
-    export PATH="/bin:/sbin:/usr/bin:/usr/sbin${PATH:+:${PATH}}"
+    export PATH="/usr/bin:/usr/sbin:/bin:/sbin${PATH:+:${PATH}}"
 
     # Automake likes to scatter our utilities over two directories.
     if [[ -n "${PALUDIS_EBUILD_DIR_FALLBACK}" ]] ; then
diff --git a/paludis/repositories/e/ebuild/write_binary_ebuild.bash b/paludis/repositories/e/ebuild/write_binary_ebuild.bash
index 3188ee7..5b20543 100755
--- a/paludis/repositories/e/ebuild/write_binary_ebuild.bash
+++ b/paludis/repositories/e/ebuild/write_binary_ebuild.bash
@@ -24,6 +24,13 @@ eval unset LANG ${!LC_*}
 shopt -s expand_aliases
 shopt -s extglob
 
+# Force a few more things into PATH, since some users have crazy setups.
+# See ticket:374.
+# NOTE(compnerd) this must be done first to ensure that the fallback directory
+# and utils directory take precedence over the path as some of our utilities
+# overload standard commands.
+export PATH="/usr/bin:/usr/sbin:/bin:/sbin${PATH:+:${PATH}}"
+
 if [[ -n "${PALUDIS_EBUILD_DIR_FALLBACK}" ]] ; then
     export PATH="${PALUDIS_EBUILD_DIR_FALLBACK}/utils:${PATH}"
 fi
@@ -32,10 +39,6 @@ for p in ${PALUDIS_UTILITY_PATH_SUFFIXES} ; do
     export PATH="${PALUDIS_EBUILD_DIR}/utils/${p}:${PATH}"
 done
 
-# Force a few more things into PATH, since some users have crazy setups.
-# See ticket:374.
-export PATH="${PATH}:/bin:/sbin:/usr/bin:/usr/sbin"
-
 EBUILD_MODULES_DIR=$(canonicalise $(dirname $0 ) )
 if ! [[ -d ${EBUILD_MODULES_DIR} ]] ; then
     echo "${EBUILD_MODULES_DIR} is not a directory" 1>&2
diff --git a/paludis/repositories/e/ebuild/write_vdb_entry.bash b/paludis/repositories/e/ebuild/write_vdb_entry.bash
index 5e78071..0e0abc8 100755
--- a/paludis/repositories/e/ebuild/write_vdb_entry.bash
+++ b/paludis/repositories/e/ebuild/write_vdb_entry.bash
@@ -24,6 +24,13 @@ eval unset LANG ${!LC_*}
 shopt -s expand_aliases
 shopt -s extglob
 
+# Force a few more things into PATH, since some users have crazy setups.
+# See ticket:374.
+# NOTE(compnerd) this must be done first to ensure that the fallback directory
+# and utils directory take precedence over the path as some of our utilities
+# overload standard commands.
+export PATH="/usr/bin:/usr/sbin:/bin:/sbin${PATH:+:${PATH}}"
+
 if [[ -n "${PALUDIS_EBUILD_DIR_FALLBACK}" ]] ; then
     export PATH="${PALUDIS_EBUILD_DIR_FALLBACK}/utils:${PATH}"
 fi
@@ -32,10 +39,6 @@ for p in ${PALUDIS_UTILITY_PATH_SUFFIXES} ; do
     export PATH="${PALUDIS_EBUILD_DIR}/utils/${p}:${PATH}"
 done
 
-# Force a few more things into PATH, since some users have crazy setups.
-# See ticket:374.
-export PATH="${PATH}:/bin:/sbin:/usr/bin:/usr/sbin"
-
 EBUILD_MODULES_DIR=$(canonicalise $(dirname $0 ) )
 if ! [[ -d ${EBUILD_MODULES_DIR} ]] ; then
     echo "${EBUILD_MODULES_DIR} is not a directory" 1>&2