Commit Graph

369 Commits

Author SHA1 Message Date
Anton Evangelatov
21acf0bc8d cmd/utils: allow for multiple influxdb tags (#18520)
This PR is replacing the metrics.influxdb.host.tag cmd-line flag with metrics.influxdb.tags - a comma-separated key/value tags, that are passed to the InfluxDB reporter, so that we can index measurements with multiple tags, and not just one host tag.

This will be useful for Swarm, where we want to index measurements not just with the host tag, but also with bzzkey and git commit version (for long-running deployments).
2019-01-29 09:14:24 +01:00
b00ris
769657060e les: implement ultralight client (#16904)
For more information about this light client mode, read
https://hackmd.io/s/HJy7jjZpm
2019-01-24 12:18:26 +01:00
Kris Shinn
f91312dbdb GraphQL master FF for review (#18445)
* Initial work on a graphql API

* Added receipts, and more transaction fields.

* Finish receipts, add logs

* Add transactionCount to block

* Add types  and .

* Update Block type to be compatible with ethql

* Rename nonce to transactionCount in Account, to be compatible with ethql

* Update transaction, receipt and log to match ethql

* Add  query operator, for a range of blocks

* Added ommerCount to Block

* Add transactionAt and ommerAt to Block

* Added sendRawTransaction mutation

* Add Call and EstimateGas to graphQL API

* Refactored to use hexutil.Bytes instead of HexBytes

* Replace BigNum with hexutil.Big

* Refactor call and estimateGas to use ethapi struct type

* Replace ethgraphql.Address with common.Address

* Replace ethgraphql.Hash with common.Hash

* Converted most quantities to Long instead of Int

* Add support for logs

* Fix bug in runFilter

* Restructured Transaction to work primarily with headers, so uncle data is reported properly

* Add gasPrice API

* Add protocolVersion API

* Add syncing API

* Moved schema into its own source file

* Move some single use args types into anonymous structs

* Add doc-comments

* Fixed backend fetching to use context

* Added (very) basic tests

* Add documentation to the graphql schema

* Fix reversion for formatting of big numbers

* Correct spelling error

* s/BigInt/Long/

* Update common/types.go

* Fixes in response to review

* Fix lint error

* Updated calls on private functions

* Fix typo in graphql.go

* Rollback ethapi breaking changes for graphql support
Co-Authored-By: Arachnid <arachnid@notdot.net>
2019-01-21 15:38:13 +01:00
dragonvslinux
f50d66f2d8 cmd/geth: update cli copyright years (#18455)
* Update copyright

2018 -> 2019

* Update copyright

2018 -> 2019
2019-01-16 01:21:50 +02:00
Martin Holst Swende
83a9a73b89 cmd/geth, core, eth: implement Constantinople override flag (#18273)
* geth/core/eth: implement constantinople override flag

* les: implemnent constantinople override flag for les clients

* cmd/geth, eth, les: fix typo, move flag to experimentals
2018-12-11 14:19:03 +02:00
Ryan Schneider
48b70ecff1
cmd, eth: Add support for --whitelist <blocknum>=<hash>,... flag
* Rejects peers that respond with a different hash for any of the passed in block numbers.
* Meant for emergency situations when the network forks unexpectedly.
2018-12-10 14:30:06 +02:00
Péter Szilágyi
434dd5bc00
cmd, core, eth, light, trie: add trie read caching layer 2018-11-15 12:22:13 +02:00
Wenbiao Zheng
6c313fff7b cmd/geth: don't set GOMAXPROCS by default (#17148)
This is no longer needed because Go uses all CPUs
by default. The change allows setting GOMAXPROCS in environment if needed.
2018-10-16 02:02:53 +02:00
Guillaume Ballet
da29332c5f core/vm: add switches to select evm+ewasm interpreters (#17687)
Interpreter initialization is left to the PRs implementing them.
Options for external interpreters are passed after a colon in the
`--vm.ewasm` and `--vm.evm` switches.
2018-09-20 10:44:35 +03:00
b00ris
8711e2b636 whisper: add light mode check to handshake (#16725) 2018-09-05 10:57:45 +02:00
Péter Szilágyi
e8f229b82e
cmd, core, eth, miner, params: configurable gas floor and ceil 2018-08-29 12:40:12 +03:00
gary rong
c1c003e4ff consensus, miner: stale block mining support (#17506)
* consensus, miner: stale block supporting

* consensus, miner: refactor seal signature

* cmd, consensus, eth: add miner noverify flag

* cmd, consensus, miner: polish
2018-08-28 16:59:05 +03:00
Péter Szilágyi
92381ee009
cmd, eth: clean up miner startup API, drop noop config field 2018-08-23 14:09:45 +03:00
Péter Szilágyi
e0d0e64ce2
cmd, core, miner: add --txpool.locals and priority mining 2018-08-22 09:43:57 +03:00
gary rong
b2c644ffb5 cmd, eth, miner: make recommit configurable (#17444)
* cmd, eth, miner: make recommit configurable

* cmd, eth, les, miner: polish a bit

* miner: filter duplicate sealing work

* cmd: remove uncessary conversion

* miner: avoid microptimization in favor of cleaner code
2018-08-21 22:56:54 +03:00
Péter Szilágyi
2a17fe2561
cmd: polish miner flags, deprecate olds, add upgrade path 2018-08-15 11:41:23 +03:00
Péter Szilágyi
f0998415ba
cmd, consensus/ethash, eth: miner push notifications 2018-08-10 09:06:59 +03:00
a e r t h
021d6fbbbb cmd: prevent accidental invalid commands (#17248)
* cmd: stop parsing bootnodes if one is invalid

* cmd/geth: require valid command as argument (or no arg)
2018-07-26 13:57:20 +03:00
Wenbiao Zheng
894022a3d5 cmd/geth: clean up call to SelfDerive (#16970) 2018-07-24 02:09:24 +02:00
Kurkó Mihály
a9835c1816 cmd, dashboard, log: log collection and exploration (#17097)
* cmd, dashboard, internal, log, node: logging feature

* cmd, dashboard, internal, log: requested changes

* dashboard, vendor: gofmt, govendor, use vendored file watcher

* dashboard, log: gofmt -s -w, goimports

* dashboard, log: gosimple
2018-07-11 10:59:04 +03:00
LeoLiao
4dbefc1f25 cmd/geth: fixed comment typo (#17140) 2018-07-09 11:38:52 +03:00
Anton Evangelatov
1990c9e621 cmd/geth: export metrics to InfluxDB (#16979)
* cmd/geth: add flags for metrics export

* cmd/geth: update usage fields for metrics flags

* metrics/influxdb: update reporter logger to adhere to geth logging convention
2018-07-02 15:51:02 +03:00
rjl493456442
a20cc75b4a
cmd/geth: cap cache allowance 2018-06-04 13:46:39 +03:00
Felix Lange
e7067be94f cmd/geth, mobile: add memsize to pprof server (#16532)
* cmd/geth, mobile: add memsize to pprof server

This is a temporary change, to be reverted before the next release.

* cmd/geth: fix variable name
2018-04-23 16:20:39 +03:00
Vie
26a4dbb467 cmd/geth: update the copyright year in the geth command usage (#16537) 2018-04-23 13:45:43 +03:00
Wuxiang
8f8774cf6d all: fix various typos (#16533)
* fix typo

* fix typo

* fix typo
2018-04-19 16:32:02 +03:00
Nguyen Sy Thanh Son
2a4bd55b43 cmd/geth: remove relOracle variable (#16434) 2018-04-04 12:22:26 +02:00
Péter Szilágyi
495bdb0c71
cmd: export preimages in RLP, support GZIP, uniform with block export 2018-03-26 14:08:01 +03:00
rjl493456442
b6b6f52ec8
cmd: implement preimage dump and import cmds 2018-03-26 12:51:46 +03:00
Kurkó Mihály
704840a8ad cmd, dashboard: use webpack dev server, remove custom assets (#16263)
* cmd, dashboard: remove custom assets, webpack dev server

* dashboard: yarn commands, small fixes
2018-03-08 10:22:21 +02:00
Martin Holst Swende
589b603a9b rpc: dns rebind protection (#15962)
* cmd,node,rpc: add allowedHosts to prevent dns rebinding attacks

* p2p,node: Fix bug with dumpconfig introduced in r54aeb8e4c0bb9f0e7a6c67258af67df3b266af3d

* rpc: add wildcard support for rpcallowedhosts + go fmt

* cmd/geth, cmd/utils, node, rpc: ignore direct ip(v4/6) addresses in rpc virtual hostnames check

* http, rpc, utils: make vhosts into map, address review concerns

* node: change log messages to use geth standard (not sprintf)

* rpc: fix spelling
2018-02-12 14:52:07 +02:00
Péter Szilágyi
55599ee95d core, trie: intermediate mempool between trie and database (#15857)
This commit reduces database I/O by not writing every state trie to disk.
2018-02-05 17:40:32 +01:00
Péter Szilágyi
bd0dbfa2a8
cmd/geth: user friendly light miner error 2018-01-12 11:59:18 +02:00
Kurkó Mihály
ba62215d9e cmd, dashboard: dashboard using React, Material-UI, Recharts (#15393)
* cmd, dashboard: dashboard using React, Material-UI, Recharts

* cmd, dashboard, metrics: initial proof of concept dashboard

* dashboard: delete blobs

* dashboard: gofmt -s -w .

* dashboard: minor text and code polishes
2017-11-14 19:34:00 +02:00
Péter Szilágyi
6d6a5a9337 cmd, consensus, core, miner: instatx clique for --dev (#15323)
* cmd, consensus, core, miner: instatx clique for --dev

* cmd, consensus, clique: support configurable --dev block times

* cmd, core: allow --dev to use persistent storage too
2017-10-24 13:40:42 +03:00
Nick Johnson
345332906c
cmd: Added support for copying data to another DB instance 2017-10-10 15:52:10 +03:00
Péter Szilágyi
ef0edc6e32 Merge pull request #14885 from karalabe/trezor-boom
accounts, console, internal: support trezor hardware wallet
2017-08-14 18:52:40 +03:00
Maximilian Meister
2b422b1a47 cmd/geth, cmd/swarm: sort commands and flags by name (#3462) 2017-08-11 13:29:05 +02:00
Péter Szilágyi
5d9ac49c7e
accounts: refactor API for generalized USB wallets 2017-08-09 13:26:07 +03:00
Péter Szilágyi
db568a61e2
accounts, console, internal: support trezor hardware wallet 2017-08-09 11:30:17 +03:00
Péter Szilágyi
4a260dc1f2
cmd: add makecache cmd, use caches during import cmd 2017-08-03 18:39:34 +02:00
Péter Szilágyi
3d32690b54 cmd, core, eth: journal local transactions to disk (#14784)
* core: reduce txpool event loop goroutines and sync structs

* cmd, core, eth: journal local transactions to disk

* core: journal replacement pending transactions too

* core: separate transaction journal from pool
2017-07-28 15:09:39 +02:00
Péter Szilágyi
5e38f7a664
cmd, core: add --txpool.nolocals to disable local price exemptions 2017-07-05 17:06:05 +03:00
Péter Szilágyi
feb2932706 Merge pull request #14540 from bas-vk/whisper-api
whisperv5: integrate whisper and implement API
2017-06-26 13:44:35 +03:00
Péter Szilágyi
d432688886
cmd/geth: corrently init gas price for CLI CPU mining 2017-06-22 14:58:07 +03:00
Bas van Kervel
7a11e86442 whisper: move flags from whisper package to utils 2017-06-21 10:49:14 +02:00
Bas van Kervel
b58a501673 whisperv5: integrate whisper and add whisper RPC simulator 2017-06-15 11:53:15 +02:00
Péter Szilágyi
08959bbc70
cmd, core, eth: configurable txpool parameters 2017-05-29 11:29:46 +03:00
Péter Szilágyi
3b3989de6a
cmd, node: support different bootnodes, fix default light port 2017-05-10 17:51:52 +03:00
Péter Szilágyi
ff2c966e7f Merge pull request #14418 from karalabe/rinkeby-flag
cmd, core, params: add --rinkeby flag for fast connectivity
2017-05-04 13:54:02 +03:00
Péter Szilágyi
d51a9fd6b7
cmd, core, params: add --rinkeby flag for fast connectivity 2017-05-04 12:36:20 +03:00
Bas van Kervel
502a2bd69f
cmd/geth: reorganise console/attach commands/flags 2017-05-03 14:33:07 +02:00
Péter Szilágyi
6430e672c9
cmd, node: add --nosub and node.Config.NoUSB to disable hw wallets 2017-04-20 14:01:51 +03:00
Péter Szilágyi
97f38ce4d6
cmd/geth: update flag groups in the geth command usage 2017-04-13 17:12:37 +03:00
bas-vk
5e29f4be93 cmd/utils, node: remove unused solc references and improve RPC config (#14324)
Currently http cors and websocket origins are a comma separated string in the
config object. These are replaced with string arrays that are more expressive in
case of a config file.
2017-04-12 23:04:14 +02:00
Felix Lange
30d706c35e cmd/geth: add --config file flag (#13875)
* p2p/discover, p2p/discv5: add marshaling methods to Node

* p2p/netutil: make Netlist decodable from TOML

* common/math: encode nil HexOrDecimal256 as 0x0

* cmd/geth: add --config file flag

* cmd/geth: add missing license header

* eth: prettify Config again, fix tests

* eth: use gasprice.Config instead of duplicating its fields

* eth/gasprice: hide nil default from dumpconfig output

* cmd/geth: hide genesis block in dumpconfig output

* node: make tests compile

* console: fix tests

* cmd/geth: make TOML keys look exactly like Go struct fields

* p2p: use discovery by default

This makes the zero Config slightly more useful. It also fixes package
node tests because Node detects reuse of the datadir through the
NodeDatabase.

* cmd/geth: make ethstats URL settable through config file

* cmd/faucet: fix configuration

* cmd/geth: dedup attach tests

* eth: add comment for DefaultConfig

* eth: pass downloader.SyncMode in Config

This removes the FastSync, LightSync flags in favour of a more
general SyncMode flag.

* cmd/utils: remove jitvm flags

* cmd/utils: make mutually exclusive flag error prettier

It now reads:

   Fatal: flags --dev, --testnet can't be used at the same time

* p2p: fix typo

* node: add DefaultConfig, use it for geth

* mobile: add missing NoDiscovery option

* cmd/utils: drop MakeNode

This exposed a couple of places that needed to be updated to use
node.DefaultConfig.

* node: fix typo

* eth: make fast sync the default mode

* cmd/utils: remove IPCApiFlag (unused)

* node: remove default IPC path

Set it in the frontends instead.

* cmd/geth: add --syncmode

* cmd/utils: make --ipcdisable and --ipcpath mutually exclusive

* cmd/utils: don't enable WS, HTTP when setting addr

* cmd/utils: fix --identity
2017-04-12 17:27:23 +03:00
Péter Szilágyi
bfe5eb7f8c eth: accept transactions when starting CPU mining (#13882) 2017-04-10 10:43:01 +02:00
Péter Szilágyi
cc13d576f0 Merge pull request #13870 from karalabe/miners-fixes
all: clean up various error handling in core and the miner
2017-04-07 11:03:11 +03:00
Felföldi Zsolt
9aca9e6deb cmd, les, eth, eth/gasprice: using new gas price oracle (#13853)
* cmd, les, eth, eth/gasprice: using new gas price oracle

* eth/gasprice: renamed source file

* eth/gasprice: added security checks for gpo params

* eth/gasprice: fixed naming issues

* eth/gasprice: max limit, maxEmpty
2017-04-06 17:20:42 +03:00
Péter Szilágyi
702bef8493
cmd/geth, eth: drop bad block reporting, its offline anyway 2017-04-06 14:25:05 +03:00
Péter Szilágyi
09777952ee core, consensus: pluggable consensus engines (#3817)
This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
2017-04-05 00:16:29 +02:00
Péter Szilágyi
b7d93500f1 all: finish integrating Go ethash, delete C++ vendor 2017-03-09 15:50:14 +01:00
Péter Szilágyi
023670f6ba cmd, eth, les, node, pow: disk caching and progress reports 2017-03-09 15:50:14 +01:00
Martin Holst Swende
544247c918 * cmd/geth: add --nocompaction flag + multiple import files
* main,import: Add --nocompaction flag + multiple import files

* geth/import: documentation

* import: Added more info to err message

* fix :P
2017-03-08 13:26:19 +02:00
Péter Szilágyi
9184249b39 Logger updates 3 (#3730)
* accounts, cmd, eth, ethdb: port logs over to new system

* ethdb: drop concept of cache distribution between dbs

* eth: fix some log nitpicks to make them nicer
2017-03-02 14:06:16 +01:00
Péter Szilágyi
aca066f337
cmd/geth: drop upgradedb subcommand since it's unfeasible
This command was meant as a hackish way to upgrade our chain database way back
when nobody cared for live updates and the size of the database along with its
import times was small. With the current database weighing hundreds of GBs and
processing times of many days, this command is just ludicrous.
2017-02-23 16:49:50 +02:00
Péter Szilágyi
1ca20a2697
cmd, whisper/mailserver: revert to utils.Fatalf 2017-02-23 12:16:46 +02:00
Péter Szilágyi
d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Jeffrey Wilcke
94334c233e cmd/geth: added 'geth bug' command (#3684)
* cmd/geth: added 'geth bug' command

Added bug command to geth, which will open a browser window
with an issue template and some additional system information.

* cmd/geth: update bug with better infos

* cmd/geth: added browser fallback

* cmd/geth: govet yo momma
2017-02-20 15:26:21 +02:00
Jeffrey Wilcke
c12f4df910 params: core, core/vm, miner: 64bit gas instructions
Reworked the EVM gas instructions to use 64bit integers rather than
arbitrary size big ints. All gas operations, be it additions,
multiplications or divisions, are checked and guarded against 64 bit
integer overflows.

In additon, most of the protocol paramaters in the params package have
been converted to uint64 and are now constants rather than variables.

* common/math: added overflow check ops
* core: vmenv, env renamed to evm
* eth, internal/ethapi, les: unmetered eth_call and cancel methods
* core/vm: implemented big.Int pool for evm instructions
* core/vm: unexported intPool methods & verification methods
* core/vm: added memoryGasCost overflow check and test
2017-02-13 21:44:25 +01:00
Jeffrey Wilcke
57f4e90257 Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"
This reverts commit 8b57c49490.
2017-02-13 15:15:12 +01:00
Péter Szilágyi
e99c788155
accounts: ledger and HD review fixes
- Handle a data race where a Ledger drops between list and open
- Prolong Ledger tx confirmation window to 30 days from 1 minute
- Simplify Ledger chainid-signature calculation and validation
- Simplify Ledger USB APDU request chunking algorithm
- Silence keystore account cache notifications for manual actions
- Only enable self derivations if wallet open succeeds
2017-02-13 14:00:12 +02:00
Péter Szilágyi
26cd41f0c7
accounts/usbwallet: make wallet responsive while Ledger is busy 2017-02-13 14:00:10 +02:00
Péter Szilágyi
205ea95802
accounts, cmd, internal, node: implement HD wallet self-derivation 2017-02-13 14:00:09 +02:00
Péter Szilágyi
fad5eb0a87
accounts, cmd, eth, internal, miner, node: wallets and HD APIs 2017-02-13 14:00:07 +02:00
Péter Szilágyi
833e4d1319
accounts, cmd, eth, internal, mobile, node: split account backends 2017-02-13 14:00:02 +02:00
Jeffrey Wilcke
8b57c49490 params: core, core/vm, miner: 64bit gas instructions (#3514)
Reworked the EVM gas instructions to use 64bit integers rather than
arbitrary size big ints. All gas operations, be it additions,
multiplications or divisions, are checked and guarded against 64 bit
integer overflows.

In additon, most of the protocol paramaters in the params package have
been converted to uint64 and are now constants rather than variables.

* common/math: added overflow check ops
* core: vmenv, env renamed to evm
* eth, internal/ethapi, les: unmetered eth_call and cancel methods
* core/vm: implemented big.Int pool for evm instructions
* core/vm: unexported intPool methods & verification methods
* core/vm: added memoryGasCost overflow check and test
2017-02-02 15:25:42 +01:00
Péter Szilágyi
d63752ef4d Merge pull request #3579 from bas-vk/natspec
cmd,eth,les,internal: remove natspec support
2017-01-17 14:38:57 +02:00
Nick Johnson
17d92233d9 cmd/geth, core: add support for recording SHA3 preimages (#3543) 2017-01-17 12:19:50 +01:00
Bas van Kervel
54a65e6d87
cmd,eth,les,internal: remove natspec support 2017-01-17 12:13:50 +01:00
Bas van Kervel
745a3adebd
core: remove support for Olympic network 2017-01-12 09:50:54 +01:00
Felix Lange
13e3b2f433 logger, pow/dagger, pow/ezp: delete dead code 2017-01-06 18:18:07 +01:00
Péter Szilágyi
86f9e836be cmd/geth: tidied up the source (#3385)
cmd/geth: tidied up the source
2016-11-30 13:34:24 +02:00
Péter Szilágyi
7267f796e6
cmd: drop DAO related choice flags since ETC diverged 2016-11-29 15:50:27 +02:00
Péter Szilágyi
4c8c5e2f74 cmd, ethstats, les, mobile, params: native netstats (#3336) 2016-11-25 16:55:06 +01:00
Felix Lange
d1a95c643e Merge pull request #3325 from fjl/p2p-netrestrict
Prevent relay of invalid IPs, add --netrestrict
2016-11-25 13:59:18 +01:00
Jeffrey Wilcke
aad4890082 cmd/geth, core, light, mobile: removed state account StartingNonce
All account's nonce start at 0.
2016-11-23 09:34:01 +01:00
Felix Lange
e5edd3b983 cmd/bootnode, cmd/geth, cmd/bzzd: add --netrestrict 2016-11-22 22:21:18 +01:00
Kenji Siu
80ea44c485 cmd/geth: improve command help messages (#3227) 2016-11-10 13:00:09 +02:00
Péter Szilágyi
4cd2617848
cmd/geth: reinstate dropped --cache flag 2016-11-09 19:18:20 +02:00
Zsolt Felfoldi
49da42983a p2p/discv5: added new topic discovery package 2016-11-09 02:12:53 +01:00
zsfelfoldi
7db7109a5b cmd, eth: added light client and light server modes 2016-11-09 02:12:53 +01:00
Péter Szilágyi
289b30715d Godeps, vendor: convert dependency management to trash (#3198)
This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.
2016-10-28 19:05:01 +02:00
Péter Szilágyi
4f46bd19d0
cmd, core/state: allow configurable trie cache generations 2016-10-19 14:55:13 +03:00
Felix Lange
eeb322ae64 node: ensure datadir can be co-inhabited by different instances
This change ensures that nodes started with different Name but same
DataDir values don't use the same nodekey and IPC socket.
2016-09-16 15:24:31 +02:00
Péter Szilágyi
30860491ba cmd, eth: drop the blockchain version from cli/eth configs 2016-09-15 14:09:47 +03:00
Felix Lange
6b727c0440 cmd/evm, cmd/geth, cmd/utils: move version handling to cmd/utils 2016-09-05 13:24:11 +02:00
Felix Lange
1d7d1a3499 contracts/release: move package release to contracts/
This change also deletes generator.go, moving the only interesting line
in it into release.go. The binding has been regenerated with abigen from
develop and solc v0.3.6.
2016-08-29 19:25:05 +02:00
Hellsegga
6bd9008025 cmd/geth: set correct initial nonce on testnet for import/init subcommands (#2924) 2016-08-23 11:36:40 +03:00
Jeffrey Wilcke
5fff491bbd cmd/geth: added copyright and license information
As per GNU GPL requirement I've added the copyright and the license
information as a subcommand as well as a copyright notice when
displaying the help command.
2016-08-22 11:17:23 +02:00