Adar Dembo has posted comments on this change.

Change subject: tool: add a 'pbc edit' command
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Patch Set 1:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/7048/1/src/kudu/tools/tool_action_pbc.cc
File src/kudu/tools/tool_action_pbc.cc:

PS1, Line 142: "pbc-edit.XXXXXX"
> If we name it "pbc-edit.XXXXXX.json" then vim / emacs will give us syntax h
We should also include the standard Kudu tmpdir infix so that if you leave one 
behind in a data directory it'll get cleaned up.


Line 173:     for (const string& l : lines) {
> one per line can be hard to edit for larger messages. Would it be difficult
Agreed. How does protobuf write out the JSON-encoded messages? I presume it's a 
top-level JSON array of messages, so perhaps we could parse with rapidjson, 
iterate over the top-level array, serialize each record _back_ to JSON, then 
hand that off to JsonStringToMessage()?

It's excessive, but it should allow for more flexibility in the editing process.


Line 194:   WARN_NOT_OK(env->SyncDir(dir), "couldn't sync directory");
If you're going to sync the directory you should also sync pb_writer before you 
close it.


http://gerrit.cloudera.org:8080/#/c/7048/1/src/kudu/util/pb_util-test.cc
File src/kudu/util/pb_util-test.cc:

Line 557:   const char* kExpectedOutputJson =
Is this expected output stable? Can we ensure that it's stable by asking the 
protobuf JSON parser thing to sort the keys or something?


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ie9434935469df8978a4f3fb3719f0245499aece5
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Tidy Bot
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
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