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27 commits

Author SHA1 Message Date
Brian Brazil 70c98a06f1
Handle empty HELP in text parser. (#4444) 
Fixes #4427

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
 2018-08-01 13:29:58 +01:00
Fabian Reinartz 0ff42e754e pkg/textparse: unescape help string 
Signed-off-by: Fabian Reinartz <freinartz@google.com>
 2018-06-06 05:56:10 -04:00
Fabian Reinartz 5fcc5b6028 pkg/textparse: support null bytes in comments and help 
Signed-off-by: Fabian Reinartz <freinartz@google.com>
 2018-06-04 11:34:34 -04:00
Fabian Reinartz 76a4a46cb0 pkg/textparse: refactor and add metadata handling 
Extends the parser to allow retrieving metadata.
The lexer now yields proper tokens that are fed into a hand-written
parser on top.

Signed-off-by: Fabian Reinartz <freinartz@google.com>
 2018-05-25 11:27:25 -04:00
Filip Ochnik ec1c6b7c29 textparse: reject empty label names 2018-02-04 17:37:46 +01:00
Julius Volz c3d6abc8e6 Fix some lint errors (#3334) 
I left the promql ones and some others untouched as I remember that @fabxc
prefers them that way.
 2017-10-23 14:57:30 +01:00
Goutham Veeramachaneni 11ee713ced Handle common escape characters properly. (#2995) 
Fixes #2974

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-27 15:15:41 +02:00
Julius Volz c6f41ce391 Allow metric and label names to begin with underscores (#2961) 
While this is not recommended, it is allowed in our data model
(https://prometheus.io/docs/concepts/data_model/).

Fixes https://github.com/prometheus/prometheus/issues/2959
 2017-07-18 12:35:41 +02:00
Goutham Veeramachaneni b7eddbcd98 textparse: Add fuzzing and fix bug caught 
See https://github.com/cznic/golex/issues/11 for info on the bug

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-07 11:12:17 +02:00
Goutham Veeramachaneni 0e78b7e7c8 parser: support spaces everywhere 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-05 15:52:21 +02:00
Brian Brazil dd07f693c8 Single quotes are not valid label value delimiters. 2017-06-20 10:54:39 +01:00
Brian Brazil a6ca391e6e Reject scrapes with invalid utf-8 label values. 2017-06-20 10:54:39 +01:00
Fabian Reinartz bc7aff8cef retrieval: extract scrape cache 2017-05-30 09:37:23 -07:00
Fabian Reinartz a83014f53c retrieval: fix memory leak and consumption for caches 2017-05-26 08:44:24 +02:00
Fabian Reinartz bdc763f95f pkg/textparse: allow null bytes in label values 2017-05-24 14:52:46 +02:00
Fabian Reinartz ea09299ca5 pkg/textparse: handle trailing labels comma (#2752) 2017-05-22 11:15:40 +02:00
Brian Brazil beaa7d5a43 Move consistent NaN logic into the parser. 2017-05-16 18:33:51 +01:00
Fabian Reinartz f7c5d96e84 pkg/textparse: parse metric names with ':' 2017-05-09 12:21:19 +02:00
Fabian Reinartz 377886b371 pkg/textparse: implement timestamp parsing 2017-04-27 17:02:07 +02:00
Brian Brazil 5c9a6ce747 Add license to files. 
This should fix CI for dev-2.0.
 2017-04-19 13:46:22 +01:00
Fabian Reinartz d9fb57cde4 *: Simplify []byte to string unsafe conversion 2017-03-07 11:41:11 +01:00
Fabian Reinartz d80a3de235 pkg/textparse: add documentation 2017-01-17 08:16:47 +01:00
Fabian Reinartz db48726a6b pkg/textparse: allocate single string per metric 2017-01-16 17:24:00 +01:00
Fabian Reinartz c691895a0f retrieval: cache series references, use pkg/textparse 
With this change the scraping caches series references and only
allocates label sets if it has to retrieve a new reference.
pkg/textparse is used to do the conditional parsing and reduce
allocations from 900B/sample to 0 in the general case.
 2017-01-16 12:03:57 +01:00
Fabian Reinartz fb3ab9bdb7 pkg/textparse: add more benchmarking, align lex defs 2017-01-15 17:32:57 +01:00
Fabian Reinartz e44d80314d pkg/textparse: add tests and method to retrieve full labels 2017-01-14 19:30:19 +01:00
Fabian Reinartz 091a7f2395 pkg/textparse: add initial text parser 2017-01-14 16:39:04 +01:00