[PATCH 3/7] reproducible: Move class function code into library

[Richard Purdie <richard.purdie@linuxfoundation.org>]

To try and avoid parse/memory overhead of functions within bitbake,
move the bulk of the reproducibility functions to the function library.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 meta/classes/base.bbclass               |  2 +-
 meta/classes/reproducible_build.bbclass | 37 ++-----------------------
 meta/lib/oe/reproducible.py             | 33 ++++++++++++++++++++++
 3 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 59fd46e5d43..bca3944ae70 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -12,7 +12,7 @@ inherit logging
 
 OE_EXTRA_IMPORTS ?= ""
 
-OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license oe.qa ${OE_EXTRA_IMPORTS}"
+OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath oe.license oe.qa oe.reproducible ${OE_EXTRA_IMPORTS}"
 OE_IMPORTS[type] = "list"
 
 PACKAGECONFIG_CONFARGS ??= ""
diff --git a/meta/classes/reproducible_build.bbclass b/meta/classes/reproducible_build.bbclass
index 3f661794c61..0f45b782e5d 100644
--- a/meta/classes/reproducible_build.bbclass
+++ b/meta/classes/reproducible_build.bbclass
@@ -91,19 +91,8 @@ addtask do_deploy_source_date_epoch_setscene
 addtask do_deploy_source_date_epoch before do_configure after do_patch
 
 python create_source_date_epoch_stamp() {
-    import oe.reproducible
-
-    epochfile = d.getVar('SDE_FILE')
-    tmp_file = "%s.new" % epochfile
-
     source_date_epoch = oe.reproducible.get_source_date_epoch(d, d.getVar('S'))
-
-    bb.debug(1, "SOURCE_DATE_EPOCH: %d" % source_date_epoch)
-    bb.utils.mkdirhier(d.getVar('SDE_DIR'))
-    with open(tmp_file, 'w') as f:
-        f.write(str(source_date_epoch))
-
-    os.rename(tmp_file, epochfile)
+    oe.reproducible.epochfile_write(source_date_epoch, d.getVar('SDE_FILE'), d)
 }
 
 EPOCHTASK = "do_deploy_source_date_epoch"
@@ -112,29 +101,7 @@ EPOCHTASK = "do_deploy_source_date_epoch"
 do_unpack[postfuncs] += "create_source_date_epoch_stamp"
 
 def get_source_date_epoch_value(d):
-    epochfile = d.getVar('SDE_FILE')
-    cached, efile = d.getVar('__CACHED_SOURCE_DATE_EPOCH') or (None, None)
-    if cached and efile == epochfile:
-        return cached
-
-    if cached and epochfile != efile:
-        bb.debug(1, "Epoch file changed from %s to %s" % (efile, epochfile))
-
-    source_date_epoch = int(d.getVar('SOURCE_DATE_EPOCH_FALLBACK'))
-    try:
-        with open(epochfile, 'r') as f:
-            s = f.read()
-            try:
-                source_date_epoch = int(s)
-            except ValueError:
-                bb.warn("SOURCE_DATE_EPOCH value '%s' is invalid. Reverting to SOURCE_DATE_EPOCH_FALLBACK" % s)
-                source_date_epoch = int(d.getVar('SOURCE_DATE_EPOCH_FALLBACK'))
-        bb.debug(1, "SOURCE_DATE_EPOCH: %d" % source_date_epoch)
-    except FileNotFoundError:
-        bb.debug(1, "Cannot find %s. SOURCE_DATE_EPOCH will default to %d" % (epochfile, source_date_epoch))
-
-    d.setVar('__CACHED_SOURCE_DATE_EPOCH', (str(source_date_epoch), epochfile))
-    return str(source_date_epoch)
+    return oe.reproducible.epochfile_read(d.getVar('SDE_FILE'), d)
 
 export SOURCE_DATE_EPOCH ?= "${@get_source_date_epoch_value(d)}"
 BB_HASHBASE_WHITELIST += "SOURCE_DATE_EPOCH"
diff --git a/meta/lib/oe/reproducible.py b/meta/lib/oe/reproducible.py
index 204b9bd734a..a5000574cfa 100644
--- a/meta/lib/oe/reproducible.py
+++ b/meta/lib/oe/reproducible.py
@@ -106,3 +106,36 @@ def get_source_date_epoch(d, sourcedir):
         fixed_source_date_epoch(d)       # Last resort
     )
 
+def epochfile_read(epochfile, d):
+    cached, efile = d.getVar('__CACHED_SOURCE_DATE_EPOCH') or (None, None)
+    if cached and efile == epochfile:
+        return cached
+
+    if cached and epochfile != efile:
+        bb.debug(1, "Epoch file changed from %s to %s" % (efile, epochfile))
+
+    source_date_epoch = int(d.getVar('SOURCE_DATE_EPOCH_FALLBACK'))
+    try:
+        with open(epochfile, 'r') as f:
+            s = f.read()
+            try:
+                source_date_epoch = int(s)
+            except ValueError:
+                bb.warn("SOURCE_DATE_EPOCH value '%s' is invalid. Reverting to SOURCE_DATE_EPOCH_FALLBACK" % s)
+                source_date_epoch = int(d.getVar('SOURCE_DATE_EPOCH_FALLBACK'))
+        bb.debug(1, "SOURCE_DATE_EPOCH: %d" % source_date_epoch)
+    except FileNotFoundError:
+        bb.debug(1, "Cannot find %s. SOURCE_DATE_EPOCH will default to %d" % (epochfile, source_date_epoch))
+
+    d.setVar('__CACHED_SOURCE_DATE_EPOCH', (str(source_date_epoch), epochfile))
+    return str(source_date_epoch)
+
+def epochfile_write(source_date_epoch, epochfile, d):
+
+    bb.debug(1, "SOURCE_DATE_EPOCH: %d" % source_date_epoch)
+    bb.utils.mkdirhier(os.path.dirname(epochfile))
+
+    tmp_file = "%s.new" % epochfile
+    with open(tmp_file, 'w') as f:
+        f.write(str(source_date_epoch))
+    os.rename(tmp_file, epochfile)
-- 
2.32.0