tb: size CCACHE_DIR when specified on a per profile or per branch

1 files changed, 48 insertions, 1 deletions

diff --git a/tb/tb_internals.sh b/tb/tb_internals.sh
index ee24fe0..068d4d5 100644
--- a/tb/tb_internals.sh
+++ b/tb/tb_internals.sh
@@ -195,8 +195,21 @@ check_branch_profile_gerrit()
 {
     local b="$1"
 
+    # unset higher level CCACHE_DIR setting
+    unset CCACHE_DIR
+
     source_branch_level_config "${b?}" "gerrit"
 
+    # if CCACHE_DIR is set it has been set by the branch's profile
+    # if TB_CCACHE_SIZE is set make sure the cache is as big as specified
+    # note: no need to restore the old CCACHE value
+    # since check_branches is run in a sub-shell
+    if [ -n "${CCACHE_DIR}" ] ; then
+        if [ -n "${TB_CCACHE_SIZE}" ] ; then
+            ccache -M "${TB_CCACHE_SIZE?}" > /dev/null
+        fi
+    fi
+
     # if we did not die yet... we are good for this branch: print it
     echo "${b?}"
 
@@ -211,6 +224,9 @@ check_branch_profile_tb()
     local b="$1"
     local sha=
 
+    # unset higher level CCACHE_DIR setting
+    unset CCACHE_DIR
+
     source_branch_level_config "${b?}" "tb"
 
     if [ -z "${TB_TINDERBOX_BRANCH}" ; then
@@ -233,6 +249,16 @@ check_branch_profile_tb()
         fi
     fi
 
+    # if CCACHE_DIR is set it has been set by the branch's profile
+    # if TB_CCACHE_SIZE is set make sure the cache is as big as specified
+    # note: no need to restore the old CCACHE value
+    # since check_branches is run in a sub-shell
+    if [ -n "${CCACHE_DIR}" ] ; then
+        if [ -n "${TB_CCACHE_SIZE}" ] ; then
+            ccache -M "${TB_CCACHE_SIZE?}" > /dev/null
+        fi
+    fi
+
     # if we did not die yet... we are good for this branch: print it
     echo "${b?}"
 }
@@ -544,7 +570,7 @@ load_profile()
     local p=$1
     local rc=0
     local config_file=
-
+    local old_ccache_dir=
 
     if [ -z "$p" ] ; then
         die "A profile is needed to run: use -p or configure one"
@@ -553,6 +579,12 @@ load_profile()
         if [ ! -d "${tb_PROFILE_DIR}" ] ; then
             die "You need to configure the profile ${p} to use it"
         fi
+
+        #save the current CCACHE_DIR setting
+        if [ -n "${CCACHE_DIR}" ] ; then
+            old_ccache_dir="${CCACHE_DIR?}"
+            unset CCACHE_DIR
+        fi
         config_file="${tb_PROFILE_DIR?}/config"
         if [ -f "${config_file?}" ] ; then
             source "${config_file?}"
@@ -565,6 +597,21 @@ load_profile()
         if [ -f "${tb_PROFILE_DIR?}/phases.sh" ] ; then
             source "${tb_PROFILE_DIR?}/phases.sh"
         fi
+
+        # if we have a CCACHE_DIR here, it has been set by
+        # the profile. if we also haev a TB_CCACHE_SIZE
+        # make sure the cache is as big as indicated
+        # if CCACHE_DIR is not set, restaure the potential
+        # previous value
+        if [ -n "${CCACHE_DIR}" ] ; then
+            if [ -n "${TB_CCACHE_SIZE}" ] ; then
+                ccache -M "${TB_CCACHE_SIZE?}" > /dev/null
+            fi
+        else
+            if [ -n "${old_ccache_dir}" ] ; then
+                CCACHE="${old_ccache_dir?}"
+            fi
+        fi
     fi
 }