---
docs/yum.conf.5 | 16 ++++++++++++++--
yum/config.py | 2 ++
yum/drpm.py | 2 +-
3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/docs/yum.conf.5 b/docs/yum.conf.5
index f9a924a..850b8be 100644
--- a/docs/yum.conf.5
+++ b/docs/yum.conf.5
@@ -378,6 +378,12 @@ When non-zero, delta-RPM files are used if available. The
value specifies
the maximum number of "applydeltarpm" processes Yum will spawn. (4 by default).
.IP
+\fBdeltarpm_percentage\fR
+
+When the relative size of delta vs pkg is larger than this, delta is not used.
+Default value is 75 (Deltas must be at least 25% smaller than the pkg).
+
+.IP
\fBsslcacert \fR
Path to the directory containing the databases of the certificate authorities
yum should use to verify SSL certificates. Defaults to none - uses system
@@ -937,12 +943,18 @@ Overrides the \fBip_resolve\fR option from the [main]
section for this
repository.
.IP
-\fBpresto\fR
+\fBdeltarpm\fR
-Overrides the \fBpresto\fR option from the [main] section for this
+Overrides the \fBdeltarpm\fR option from the [main] section for this
repository.
.IP
+\fBdeltarpm_percentage\fR
+
+Overrides the \fBdeltarpm_percentage\fR option from the [main] section
+for this repository.
+
+.IP
\fBsslcacert \fR
Overrides the \fBsslcacert\fR option from the [main] section for this
repository.
diff --git a/yum/config.py b/yum/config.py
index d2ca937..d689ce2 100644
--- a/yum/config.py
+++ b/yum/config.py
@@ -792,6 +792,7 @@ class YumConf(StartupConf):
mapper = {'4': 'ipv4', '6': 'ipv6'})
max_connections = IntOption(0)
deltarpm = IntOption(4)
+ deltarpm_percentage = IntOption(75)
http_caching = SelectionOption('all', ('none', 'packages', 'all'))
metadata_expire = SecondsOption(60 * 60 * 6) # Time in seconds (6h).
@@ -951,6 +952,7 @@ class RepoConf(BaseConfig):
timeout = Inherit(YumConf.timeout)
ip_resolve = Inherit(YumConf.ip_resolve)
deltarpm = Inherit(YumConf.deltarpm)
+ deltarpm_percentage = Inherit(YumConf.deltarpm_percentage)
http_caching = Inherit(YumConf.http_caching)
metadata_expire = Inherit(YumConf.metadata_expire)
diff --git a/yum/drpm.py b/yum/drpm.py
index 5b37c51..8536e4b 100644
--- a/yum/drpm.py
+++ b/yum/drpm.py
@@ -137,7 +137,7 @@ class DeltaInfo:
index = pinfo_repo.get(new)
if index is not None:
po = pkgs[index]
- best = po.size * 0.75 # make this configurable?
+ best = po.size * (repo.deltarpm_percentage / 100.0)
have = installed(new[:2]) or []
for el in el.findall('delta'):
size = int(el.find('size').text)
--
1.7.11.7
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