[PATCH 1/1] move ccache dir from tmpdir to topdir

[Felix Moessbauer]

By having the ccache below tmp it is cleaned on "kas clean" or any other
operation that removes the tmpdir. As this dir is frequently cleaned in
common use-cases, the cache is not reused.

We now move the ccache dir to the topdir to persist it across clean
operations. We further considered to move it into topdir/cache, but this
directory is managed by bitbake.

Signed-off-by: Felix Moessbauer <felix.mo...@siemens.com>
---
doc/user_manual.md | 2 +-
meta-isar/conf/local.conf.sample | 2 +-
meta/conf/bitbake.conf | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/doc/user_manual.md b/doc/user_manual.md
index d8e5c33e..ff63aaa5 100644
--- a/doc/user_manual.md
+++ b/doc/user_manual.md
@@ -1198,7 +1198,7 @@ To enable global ccache functionality, `USE_CCACHE = "1"` can be added
to `local.conf`. If some package requires ccache to be always disabled,
`USE_CCACHE = "0"` can be used in the recipe despite global setup.

-By default, ccache directory is created inside `TMPDIR`, but it can be
+By default, ccache directory is created inside `TOPDIR`, but it can be
adjusted by `CCACHE_TOP_DIR` variable in `local.conf`. Ccache directory
`CCACHE_DIR` default value is
`"${CCACHE_TOP_DIR}/${DISTRO}-${DISTRO_ARCH}-${BUILD_ARCH}"`, that means
diff --git a/meta-isar/conf/local.conf.sample b/meta-isar/conf/local.conf.sample
index b59f310b..93d2ef96 100644
--- a/meta-isar/conf/local.conf.sample
+++ b/meta-isar/conf/local.conf.sample
@@ -211,7 +211,7 @@ USER_isar[flags] += "clear-text-password"
# Uncomment this to use ccache for custom packages
#USE_CCACHE = "1"
# Uncomment and set own top level ccache directory to share between builds
-#CCACHE_TOP_DIR ?= "${TMPDIR}/ccache"
+#CCACHE_TOP_DIR ?= "${TOPDIR}/ccache"
# Enable ccache debug mode
#CCACHE_DEBUG = "1"

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 5ab8ced7..4a964cfc 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -200,7 +200,7 @@ INHERIT += "${@'buildstats' if bb.utils.to_boolean(d.getVar('USE_BUILDSTATS')) e

# Default values for ccache
USE_CCACHE ??= "0"
-CCACHE_TOP_DIR ?= "${TMPDIR}/ccache"
+CCACHE_TOP_DIR ?= "${TOPDIR}/ccache"
CCACHE_DIR ?= "${CCACHE_TOP_DIR}/${DISTRO}-${DISTRO_ARCH}-${BUILD_ARCH}"
CCACHE_DEBUG ?= "0"

--
2.39.5

[Jan Kiszka]

IIRC, the default location was once modeled after OE - which does not
mean we shouldn't consider to deviate now.

Jan

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