forked from lix-project/lix
Make the TTL for disk cache configurable, we can now completely disable
disk cache lookup for example by doing: nix copy --from <binary-cahe> <store-path> --option \ positive-disk-cache-ttl 0 Issues: #1885 #2035
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@ -310,6 +310,12 @@ public:
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"Disabled substituters that may be enabled via the substituters option by untrusted users.",
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"Disabled substituters that may be enabled via the substituters option by untrusted users.",
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{"trusted-binary-caches"}};
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{"trusted-binary-caches"}};
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Setting<int> ttlNegativeDiskCache{this, 3600, "negative-disk-cache-ttl",
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"The TTL in seconds for negative lookups in the disk cache."};
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Setting<int> ttlPositiveDiskCache{this, 30 * 24 * 3600, "positive-disk-cache-ttl",
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"The TTL in seconds for positive lookups in the disk cache."};
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Setting<Strings> trustedUsers{this, {"root"}, "trusted-users",
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Setting<Strings> trustedUsers{this, {"root"}, "trusted-users",
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"Which users or groups are trusted to ask the daemon to do unsafe things."};
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"Which users or groups are trusted to ask the daemon to do unsafe things."};
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@ -1,6 +1,7 @@
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#include "nar-info-disk-cache.hh"
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#include "nar-info-disk-cache.hh"
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#include "sync.hh"
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#include "sync.hh"
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#include "sqlite.hh"
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#include "sqlite.hh"
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#include "globals.hh"
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#include <sqlite3.h>
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#include <sqlite3.h>
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@ -47,10 +48,6 @@ class NarInfoDiskCacheImpl : public NarInfoDiskCache
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{
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{
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public:
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public:
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/* How long negative and positive lookups are valid. */
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const int ttlNegative = 3600;
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const int ttlPositive = 30 * 24 * 3600;
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/* How often to purge expired entries from the cache. */
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/* How often to purge expired entries from the cache. */
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const int purgeInterval = 24 * 3600;
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const int purgeInterval = 24 * 3600;
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@ -116,8 +113,8 @@ public:
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SQLiteStmt(state->db,
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SQLiteStmt(state->db,
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"delete from NARs where ((present = 0 and timestamp < ?) or (present = 1 and timestamp < ?))")
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"delete from NARs where ((present = 0 and timestamp < ?) or (present = 1 and timestamp < ?))")
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.use()
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.use()
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(now - ttlNegative)
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(now - settings.ttlNegativeDiskCache)
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(now - ttlPositive)
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(now - settings.ttlPositiveDiskCache)
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.exec();
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.exec();
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debug("deleted %d entries from the NAR info disk cache", sqlite3_changes(state->db));
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debug("deleted %d entries from the NAR info disk cache", sqlite3_changes(state->db));
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@ -186,8 +183,8 @@ public:
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auto queryNAR(state->queryNAR.use()
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auto queryNAR(state->queryNAR.use()
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(cache.id)
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(cache.id)
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(hashPart)
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(hashPart)
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(now - ttlNegative)
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(now - settings.ttlNegativeDiskCache)
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(now - ttlPositive));
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(now - settings.ttlPositiveDiskCache));
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if (!queryNAR.next())
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if (!queryNAR.next())
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return {oUnknown, 0};
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return {oUnknown, 0};
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