GHC | Work out how to manage labels (#16458)

Mon Mar 18 22:42:43 UTC 2019

Useful categorisation

  *   I’d favour using colour to separate the different groups.
  *   I think we could collapse 4 and 5 into one group (one colour)

Simon

From: Ben Gamari <gitlab at gitlab.haskell.org>
Sent: 18 March 2019 21:39
To: Simon Peyton Jones <simonpj at microsoft.com>
Subject: GHC | Work out how to manage labels (#16458)

Currently ghc/ghc><https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542581319&sdata=akt90WXNG6MsBivPVz5cwp88pBaznwo7rya6YnzsBNg%3D&reserved=0> has nearly 100 labels. These fall into a variety of categories:

  1.  Labels that classify the ticket (bug<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dbug&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542581319&sdata=9MNxLK0oFIs9USZwpMpsb1rzwmgrTF8u4NkBf%2BIV8fc%3D&reserved=0>, feature request<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dfeature%2Brequest&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542591271&sdata=OmJmQv1iIwCX6rWPId8rLfrJG7Uo%2FdCXBd4lXFTvcSM%3D&reserved=0>, task<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dtask&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542591271&sdata=H6kaaFry7mYfhn2l%2F1bTLjD81z6spH0GWB%2Bhq21P1lE%3D&reserved=0>)
  2.  Labels that classify bugs by their manifestation: compiler perf<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dcompiler%2Bperf&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542601263&sdata=k3iXjux%2BcCsjC6rMbpu1Ve4qzUDt%2FxG5lzqjbM6VHTw%3D&reserved=0>, compiler crash<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dcompiler%2Bcrash&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542601263&sdata=Tt0URbQJbjJ5u3wwi2i4055hI2%2FWDJRRGbtSQS9xvww%3D&reserved=0>, ghc build failure<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dghc%2Bbuild%2Bfailure&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542611257&sdata=R%2BhIllLcgo3pSu2TatvXLiskMCFMq2hm5sulZ3B0WeY%3D&reserved=0>
  3.  Labels that specify the environmental conditions under which an issue will manifest:

     *   architectures: ARM<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DARM&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542611257&sdata=R%2BVaZUBT7AJyhrQhbDLm9ST5VWQ5%2F77lSAbJPI6aghI%3D&reserved=0>, SPARC<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DSPARC&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542621251&sdata=UeAiQXnnApKCHmuaGWrekwjNGgmg%2BlaiJFt0y6hRvcA%3D&reserved=0>, PowerPC<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DPowerPC&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542621251&sdata=OQCZBfAy4ip6Do7qNcrab5kYQ%2FAbZcpJ%2FcX9aWOUmQI%3D&reserved=0>
     *   operating system: ~OpenBSD, Windows<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DWindows&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542621251&sdata=KswyqP%2F4thzo8r27U5h6iKxosBwtwiSuN34vUi%2FOgjE%3D&reserved=0>, macOS<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DmacOS&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542631246&sdata=qopNjAcN8kEK%2BjlIl5gmBNOdsYqL3vwynUdMF8KuUDM%3D&reserved=0>

  1.  Labels that specify which compiler or program features are implicated in a bug

     *   language extensions: ImpredicativeTypes<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DImpredicativeTypes&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542631246&sdata=IwWi4SFkLtTrd6CCzYVjCY4uUumwli2c3p850GgYTzg%3D&reserved=0>, ~FlexibleContexts, UnboxedTuples<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DUnboxedTuples&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542641240&sdata=wHXY%2BWXE8UZYcneq1xWmaUzHF%2FN5A4dDFf00gsUkVTU%3D&reserved=0>
     *   program constructs: join points<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Djoin%2Bpoints&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542641240&sdata=QzXVIQoSLtpHGwg4i4FU0IinQ1Ol2vaLPbXvJ99GJFY%3D&reserved=0>, levity polymorphism<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dlevity%2Bpolymorphism&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542651234&sdata=3wwPs8olDQnFNAKM0mbir9IUi2uVBRMv%2BLXuWO5m3%2FQ%3D&reserved=0>, STM<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DSTM&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542651234&sdata=03hTp12%2BVIx05xDMbqR1pAgDHgtFOj4B%2FMmSQ0kM4Ss%3D&reserved=0>
     *   compiler feature: recompilation checking<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Drecompilation%2Bchecking&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542661228&sdata=VGFbg3W4FrV0Elt0yal1fuHEzMrl0seYSrJB86uL7S0%3D&reserved=0>, cpp<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dcpp&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542661228&sdata=QVE%2BH1ZpcdABUUdNf9lfDzmQchsqnlMdHuq9h1dzTac%3D&reserved=0>, debug information<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Ddebug%2Binformation&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542671225&sdata=HD210%2Fv%2F9QsAUh6RuDK%2B0CvhHcxEafEcRUaqdejbO9c%3D&reserved=0>, ~"cross compilation"

  1.  Labels that specify which bit of implementation a bug is likely caused by:

     *   compiler subsystem: driver<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Ddriver&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542671225&sdata=I4%2FvIcOu9XQBESTW9J58u%2BZUmPhlYrxiSifVQE3XP6A%3D&reserved=0>, simplifier<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dsimplifier&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542671225&sdata=oKHwUqY8JtylL1CQYQidTAEq%2FCLKGllbBt4I4e8d0q8%3D&reserved=0>, demand analysis<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Ddemand%2Banalysis&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542681218&sdata=dXUK2Y1FqYTsgTSj5OiWlrzy1CjCnltggtgGvNYJrAs%3D&reserved=0>, RTS<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DRTS&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542681218&sdata=b1vjG0iWDXAZIprdmk1Sra4%2BIv2O%2FvHnYkUwpNeP5Q4%3D&reserved=0>, LLVM backend<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3DLLVM%2Bbackend&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542691211&sdata=7%2F7M75p25Hf%2B%2BMkhBqmLcKQXeHf3sqYfhrA7X6635XY%3D&reserved=0>
     *   related GHC project: ghc-pkg<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dghc-pkg&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542691211&sdata=iw1Q4m2w1oIWJki3Oj%2BkZcxPfJ5%2B7OoSXAfHFm%2B9sKU%3D&reserved=0>, integer-simple<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dinteger-simple&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542701205&sdata=UykmdKWcFF84s4WCHhqrdnTvasTF%2FNhfTRHHEq1cvAY%3D&reserved=0>, nofib<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dnofib&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542701205&sdata=XKhjKKQm8cPr%2FH17cVR286flFjqeHN7%2BCFbA9mSR594%3D&reserved=0>, core libraries<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dcore%2Blibraries&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542701205&sdata=XF5%2FuxOtOzxDhsmdc22MocpIbRjIR1YvoZsgIomDxoI%3D&reserved=0>, infrastructure<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dinfrastructure&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542711201&sdata=maj3%2F65DsfCplUQRsz4%2FSqyD8PFeRzY2%2BeHcKcS5F5s%3D&reserved=0>
     *   external project: haddock<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dhaddock&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542711201&sdata=x30e6tTiooeJ1Kgk4HHoJSajrN3ygjJU9JRc8N7JnRI%3D&reserved=0>, hadrian<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dhadrian&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542721194&sdata=QhtxxmeHbyW0t%2FE5ty0XkScnzsaSl6VQxPkaCG9ln4k%3D&reserved=0>

  1.  Labels that specify other attributes of a ticket: newcomer<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dnewcomer&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542721194&sdata=9qW1g47iJgd7Ho%2BpaLth2tQOzkFEXB5V%2F%2BHiCwzDIgY%3D&reserved=0>, backport request<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.haskell.org%2Fghc%2Fghc%2Fissues%3Flabel_name%3Dbackport%2Brequest&data=02%7C01%7Csimonpj%40microsoft.com%7C6a2447979c854125a26a08d6abea2932%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636885419542731188&sdata=OeMoDAIMhxbeJvpmCZLYE1cUq62%2FrCASs1ciFWLIBVw%3D&reserved=0>, ~"info needed", ~"user facing"

It's not clear which of these are useful, which are just noise, and how we should best group them.

We have two tools for logically grouping labels:

  *   prefixing the label name with some sort of category string
  *   color

—
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