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message: add cache_path per message

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Generate a message-specific cache path when needed.
Update tests, too.
This commit is contained in:
Dirk-Jan C. Binnema
2022-05-05 01:24:18 +03:00
parent 85fed37870
commit c0ae7e6860
4 changed files with 62 additions and 34 deletions
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55
lib/message/mu-message.hh
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@ -140,6 +140,14 @@ public:
*/
const Document& document() const;
/**
* Get the document-id, or 0 if non-existent.
*
* @return document id
*/
unsigned docid() const;
/**
* Get the file system path of this message
*
@ -236,12 +244,12 @@ public:
}
/**
* get the last modification or creation time for this message
* get the last change-time (ctime) for this message
*
* @return message date/time or 0 if unknown
* @return chnage time or 0 if unknown
*/
::time_t modified() const {
return static_cast<::time_t>(document().integer_value(Field::Id::Modified));
::time_t changed() const {
return static_cast<::time_t>(document().integer_value(Field::Id::Changed));
}
/**
@ -297,7 +305,8 @@ public:
* @return a list with the tags for this msg. Don't modify/free
*/
std::vector<std::string> tags() const {
return document().string_vec_value(Field::Id::Tags);
return document()
.string_vec_value(Field::Id::Tags);
}
/**
@ -306,7 +315,7 @@ public:
* @return sexp or empty.
*/
std::string cached_sexp() const {
return document().string_value(Field::Id::XCachedSexp);
return document().cached_sexp();
}
/*
@ -314,19 +323,20 @@ public:
*/
/**
* convert the message to a Lisp symbolic expression (for further
* processing in e.g. emacs)
* Get the s-expression for this message. Stays valid as long
* as this message is.
*
* @return a Mu::Sexp or a Mu::Sexp::List representing the message.
* @return a Mu::Sexp::List representing the message.
*/
Mu::Sexp::List to_sexp_list() const;
Mu::Sexp to_sexp() const;
const Mu::Sexp::List& to_sexp_list() const;
Mu::Sexp to_sexp() const {
return Sexp::make_list(Sexp::List(to_sexp_list()));
}
/**
* Update the cached sexp for this message which is stored in the
* document.This should be done when the document is complete,
* i.e., immediately before storing it in the database.
* document. This should be done immediately before storing it in the
* database.
*
*/
void update_cached_sexp();
@ -369,13 +379,6 @@ public:
Option<std::string> header(const std::string& header_field) const;
/**
* Get the mtime for the message file.
*
* @return the mtime
*/
::time_t mtime() const;
/**
* Get all contacts for this message.
*
@ -391,6 +394,16 @@ public:
using Part = MessagePart;
const std::vector<Part>& parts() const;
/**
* Get the path to a cche directory for this message, which
* is useful for temporarily saving attachments
*
* @return path to a (created) cache directory, or an error.
*/
Result<std::string> cache_path() const;
/**
* Load the GMime (file) message (for a database-backed message),
* if not already (but see @param reload).