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Input: Replace 'locked' bool by isLocked() method

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It's better to just check whether the input has all the attributes
needed to consider itself locked (e.g. whether a Git input has an
'rev' attribute).

Also, the 'locked' field was actually incorrect for Git inputs: it
would be set to true even for dirty worktrees. As a result, we got
away with using fetchTree() internally even though fetchTree()
requires a locked input in pure mode. In particular, this allowed
'--override-input' to work by accident.

The fix is to pass a set of "overrides" to call-flake.nix for all the
unlocked inputs (i.e. the top-level flake and any --override-inputs).
This commit is contained in:
Eelco Dolstra 2024-02-16 17:00:07 +01:00
parent 78e7c98b02
commit 071dd2b3a4
16 changed files with 155 additions and 85 deletions
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7
src/libexpr/flake/lockfile.hh
View file

@ -59,14 +59,15 @@ struct LockFile
typedef std::map<ref<const Node>, std::string> KeyMap;
nlohmann::json toJSON() const;
std::pair<nlohmann::json, KeyMap> toJSON() const;
std::string to_string() const;
std::pair<std::string, KeyMap> to_string() const;
static LockFile read(const Path & path);
/**
* Check whether this lock file has any unlocked inputs.
* Check whether this lock file has any unlocked inputs. If so,
* return one.
*/
std::optional<FlakeRef> isUnlocked() const;