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Merge remote-tracking branch 'origin/master' into flakes

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This commit is contained in:
Eelco Dolstra 2019-12-11 14:53:30 +01:00
commit ecb3a1afa2
119 changed files with 3905 additions and 2250 deletions
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8
src/libutil/util.hh
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@ -62,7 +62,7 @@ Path dirOf(const Path & path);
/* Return the base name of the given canonical path, i.e., everything
following the final `/'. */
string baseNameOf(const Path & path);
std::string_view baseNameOf(std::string_view path);
/* Check whether 'path' is a descendant of 'dir'. */
bool isInDir(const Path & path, const Path & dir);
@ -431,7 +431,7 @@ bool hasPrefix(const string & s, const string & prefix);
/* Return true iff `s' ends in `suffix'. */
bool hasSuffix(const string & s, const string & suffix);
bool hasSuffix(std::string_view s, std::string_view suffix);
/* Convert a string to lower case. */
@ -474,10 +474,10 @@ string base64Decode(const string & s);
/* Get a value for the specified key from an associate container, or a
default value if the key doesn't exist. */
template <class T>
string get(const T & map, const string & key, const string & def = "")
std::optional<std::string> get(const T & map, const std::string & key)
{
auto i = map.find(key);
return i == map.end() ? def : i->second;
return i == map.end() ? std::optional<std::string>() : i->second;
}