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34 To: notmuch@notmuchmail.org
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35 From: Rainer M Krug <R.M.Krug@gmail.com>
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36 Subject: Re: Better Gmail handling by not using Notmuch tags
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37 Date: Mon, 17 Sep 2012 16:23:17 +0200
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72 On 17/09/12 09:55, Rainer M Krug wrote:
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73 > On 14/09/12 18:27, Mark Anderson wrote:
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74 >> On Fri, 14 Sep 2012 09:50:01 +0200, Rainer M Krug
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75 >> <R.M.Krug@gmail.com> wrote: On 13/09/12 17:15, Damien Cassou
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77 >>>>> On Thu, Sep 13, 2012 at 5:13 PM, Jeremy Nickurak
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78 >>>>> <not-much@trk.nickurak.ca> wrote:
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79 >>>>>> Gmail doesn't have folders, of course, it has labels, which are approximately
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80 >>>>>> equivalent to notmuch tags. The key difference being that a message can only be in
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81 >>>>>> one folder, but it can have multiple tags/labels.
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83 >>>>> Gmail exports its labels as IMAP folders: an email with multiple labels will be
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84 >>>>> duplicated in multiple folders (one per label). That's why I'm asking if it would be
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85 >>>>> possible to manupale folders from Notmuch instead of tags.
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88 >> I don't think there is an easy solution. notmuch uses a maildir and tags. Gmail needs to be
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89 >> synced to this local maildir earlier, and this is where I think the problem comes in: I am
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90 >> not aware of any sync tool which maintains the gmail labels, as they are in in the imap
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93 >> I think the only real solution woud be:
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95 >> Download from gmail -> local: 1) download only the "All Mail" folder 2) implement a tagging
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96 >> tool which syncs the gmail labels to notmuch tags
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98 >>> Gmail's IMAP protocol does expose a folder hierarchy which you can use to reverse engineer
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99 >>> the tag cloud of each email.
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104 > Wow - I learned a lot about notmuch and how things can be done - thanks for this explanation.
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106 Thinking about it again - wouldn't it be possible, that notmuch automatically is doing the "folder
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107 - --> tag" step (when a corresponding option is set), and automatically adds all the folders to the
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108 message tags when the same message-id is encountered in different folders?
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113 >>> Of course this is terrible on performance, as you will have lots of
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115 > I guess this will be the problem: a typical gmail user, keeps the emails - one has 10GB as
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116 > storage, so why delete potentially important mails?
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118 > So I guess this would be a case for e.g. offlineimap.
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120 >>> copies of mails when you have lots of tags on your mail, but here's a summary of the
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121 >>> actions you need to coordinate to keep them in sync.
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125 >>> The benefit of using the mail sync is it uses a widely distributed mail synchronization
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126 >>> model, but it really tags expensive to synchronize. It gets better if you use the Gmail
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127 >>> imap extensions that can list the tags without your client requesting a copy of the entire
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128 >>> email for each tag the mail has. However, Even when you have that, you don't have
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129 >>> bulletproof mail, because the actions need to be guaranteed to complete before
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130 >>> synchronization and after synchronization, and any user changes need to be held off, as
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131 >>> they _will_ be interpreted incorrectly if they take place during the pre-sync, sync,
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132 >>> post-sync window.
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134 > It would then definitely be useful to include this in offlineimap - effectively have a
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135 > "tagging" sync model, where only the "All Mail" folder is synched, and for the tags, a database
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136 > is kept, which contains the tags for each message-id. This could then be used from notmuch (or
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137 > other clients) to set the tags of the email.
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139 > For the moment I guess I will stick with my only-"All Mails"-sync-and-ignore-tags approach.
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147 >>> You can simplify this if you make guarantees in your usage model. That you will never do
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148 >>> tagging operations during a pre-, sync, post- cycle, or that you only do synchronization
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149 >>> one way or the other, instead of full bidirectional sync.
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151 >>> It's a difficult problem, I look forward to seeing other solutions proposed.
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153 >>> Thanks, -Mark Anderson
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155 >> upload local -> gmail 1) upload "All Mail folder 2) assign on gmail the labels corresponding
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156 >> to the notmuch tags.
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158 >> The step 1 could be done by any sync tool available for this (offlineimap, ...)
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160 >> step 2 needs to be developed - no idea how, but it surely would be really usefull, because
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161 >> then notmuch would even become a perfect tool for gmail backup as well.
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167 >>> _______________________________________________ notmuch mailing list
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168 >>> notmuch@notmuchmail.org
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169 >>> http://notmuchmail.org/mailman/listinfo/notmuch
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projects / notmuch-archives.git / blob