rvagg

peerDependencies + gyp builds

Background: I'm working on a native plugin mechanism for LevelDOWN, the pure-native component of LevelUP. Module authors can write native code and communicate with LevelDOWN via JS to provide a plugin to extends its functionality. LevelDOWN has to export symbols in its gyp build and plugins have to be able to find LevelDOWN in the require() path in order to link to it and include header files. The majority of people will be using/installing LevelUP which installs LevelDOWN. The is an additional JS-layer plugin mechanism being developed for LevelUP but that's a separate matter.

Make a new directory, put the package.json below in it and npm install. At first it breaks, run npm install again and it's fine.

The desired npm ls is this:

tmp@0.0.0

rvagg

LevelUP rangeDel() benchmarks

Tests a native C++ .rangeDel() method via upper-rangedel/downer-rangedel against a JavaScript implementation of the same via level-delete-range.

1. make files with contents below
2. npm install (twice, first one will fail)
3. node ./
4. observe results

rvagg

const loc = '/somewhere/for/a/massive.db' // somewhere you have space

const fs      = require('fs')
    , levelup = require('levelup')
    , uuid    = require('node-uuid')
    , bogan   = require('boganipsum')
    , du      = require('du')
    , async   = require('async')

var writing = 0

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var crypto = require('crypto')
  , concat = require('concat-stream')
  , zlib   = require('zlib')
  , tar    = require('tar')
  , concat = require('concat-stream')
  , parser = tar.Parse()
  , stream = crypto.createDecipher(process.argv[2], process.argv[3])

parser.on('entry', function (e) {
  if (e.type != 'File') return

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const NTwitter = require('ntwitter')
    , secrets  = require('./secrets')
    , ent      = require('ent')

require('colors')

var twit = new NTwitter(secrets.ntwitter)
twit.verifyCredentials(function (err, data) {
  if (err) {
    console.error('COULD NOT VERIFY TWITTER CREDENTIALS', err)

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// download a copy of https://raw.github.com/polyhack/npm-github-data/master/githubusers_au.json
// and https://raw.github.com/polyhack/npm-github-data/master/allpackages.json
// and put them somewhere
//
// in node_modules/npm-maintainers-au/node_modules/npm-maintainers/npm-maintainers.js
// find fetch() and edit it like below:

function fetch (options, callback) {
  var result = {}
    , done = after(2, function (err) {

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const assert = require('referee').assert
    , refute = require('referee').refute
    , fail   = require('referee').fail

// magic pixie dust to get us initialised
const $ = require('selenese_node/sequence')(module)

const loginEmail = 'testmystuff@mockmyid.com'

// some state to maintain along the way

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// replace persona-id's persona.js with stubbyid.js, modified to have an `exports`
// ./_persona-id_stubbyid_js is a copy of https://github.com/toolness/stubbyid/blob/gh-pages/stubbyid.js

const through      = require('through2')
    , fs           = require('fs')
    , path         = require('path')
    , stubbyidFile = path.join(__dirname, '_persona-id_stubbyid_js')

var stubbyid

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Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff6bca700 (LWP 25672)]
0x00007ffff4973674 in leveldb::DecodeFixed32 (ptr=0x8 <Address 0x8 out of bounds>)
    at ../deps/leveldb/leveldb-1.14.0/util/coding.h:62
62	    memcpy(&result, ptr, sizeof(result));  // gcc optimizes this to a plain load
(gdb) backtrace 
#0  0x00007ffff4973674 in leveldb::DecodeFixed32 (ptr=0x8 <Address 0x8 out of bounds>)
    at ../deps/leveldb/leveldb-1.14.0/util/coding.h:62
#1  0x00007ffff49854f4 in leveldb::WriteBatchInternal::Count (b=0x5698930)
    at ../deps/leveldb/leveldb-1.14.0/db/write_batch.cc:83

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  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/bloom.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/env_posix.o
../deps/leveldb/leveldb-hyper/util/env_posix.cc: In member function ‘virtual leveldb::Status leveldb::{anonymous}::PosixEnv::CopyFile(const string&, const string&)’:
../deps/leveldb/leveldb-hyper/util/env_posix.cc:570:30: warning: ‘fd2’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/env.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/histogram.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/coding.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/hash.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/logging.o
  CXX(target) Release/obj.target/leveldb/deps/leveldb/leveldb-hyper/util/filter_policy.o