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Add priority setting to stores

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This allows overriding the priority of substituters, e.g.

  $ nix-store --store ~/my-nix/ -r /nix/store/df3m4da96d84ljzxx4mygfshm1p0r2n3-geeqie-1.4 \
    --substituters 'http://cache.nixos.org?priority=100 daemon?priority=10'

Fixes #3264.
This commit is contained in:
Eelco Dolstra 2019-12-17 17:17:53 +01:00
parent 54bf5ba422
commit f8abbdd456
13 changed files with 51 additions and 47 deletions
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8
src/libutil/config.hh
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@ -115,6 +115,8 @@ public:
bool overriden = false;
void setDefault(const std::string & str);
protected:
AbstractSetting(
@ -131,13 +133,13 @@ protected:
virtual void set(const std::string & value) = 0;
virtual std::string to_string() = 0;
virtual std::string to_string() const = 0;
virtual void toJSON(JSONPlaceholder & out);
virtual void convertToArg(Args & args, const std::string & category);
bool isOverriden() { return overriden; }
bool isOverriden() const { return overriden; }
};
/* A setting of type T. */
@ -174,7 +176,7 @@ public:
value = v;
}
std::string to_string() override;
std::string to_string() const override;
void convertToArg(Args & args, const std::string & category) override;