Full Code of wxyyxc1992/ServerSideApplication-Development-And-System-Architecture for AI

Repository: wxyyxc1992/ServerSideApplication-Development-And-System-Architecture
Branch: master
Commit: 83ecec8af71e
Files: 39
Total size: 41.3 KB

Directory structure:
gitextract_g75l6pcq/

├── .git/
│   ├── HEAD
│   ├── config
│   ├── description
│   ├── hooks/
│   │   ├── applypatch-msg.sample
│   │   ├── commit-msg.sample
│   │   ├── fsmonitor-watchman.sample
│   │   ├── post-update.sample
│   │   ├── pre-applypatch.sample
│   │   ├── pre-commit.sample
│   │   ├── pre-merge-commit.sample
│   │   ├── pre-push.sample
│   │   ├── pre-rebase.sample
│   │   ├── pre-receive.sample
│   │   ├── prepare-commit-msg.sample
│   │   ├── push-to-checkout.sample
│   │   ├── sendemail-validate.sample
│   │   └── update.sample
│   ├── index
│   ├── info/
│   │   └── exclude
│   ├── objects/
│   │   └── pack/
│   │       ├── pack-781ecb6e2345c2c9a6b59ce8a39eea6c3917b225.idx
│   │       ├── pack-781ecb6e2345c2c9a6b59ce8a39eea6c3917b225.pack
│   │       ├── pack-781ecb6e2345c2c9a6b59ce8a39eea6c3917b225.promisor
│   │       └── pack-781ecb6e2345c2c9a6b59ce8a39eea6c3917b225.rev
│   ├── packed-refs
│   ├── refs/
│   │   ├── heads/
│   │   │   └── master
│   │   └── remotes/
│   │       └── origin/
│   │           └── HEAD
│   └── shallow
├── .gitattributes
├── .github/
│   ├── ISSUE_TEMPLATE/
│   │   ├── bug_report.md
│   │   ├── custom.md
│   │   └── feature_request.md
│   └── META/
│       ├── ABOUT.md
│       └── SUMMARY.md
├── .gitignore
├── .nojekyll
├── INTRODUCTION.md
├── README.md
├── clipboard.txt
└── index.html

================================================
FILE CONTENTS
================================================

================================================
FILE: .git/HEAD
================================================
ref: refs/heads/master


================================================
FILE: .git/config
================================================
[core]
	repositoryformatversion = 1
	filemode = true
	bare = false
	logallrefupdates = true
[remote "origin"]
	url = https://github.com/wxyyxc1992/ServerSideApplication-Development-And-System-Architecture
	tagOpt = --no-tags
	fetch = +refs/heads/master:refs/remotes/origin/master
	promisor = true
	partialclonefilter = blob:limit=1048576
[branch "master"]
	remote = origin
	merge = refs/heads/master


================================================
FILE: .git/description
================================================
Unnamed repository; edit this file 'description' to name the repository.


================================================
FILE: .git/hooks/applypatch-msg.sample
================================================
#!/bin/sh
#
# An example hook script to check the commit log message taken by
# applypatch from an e-mail message.
#
# The hook should exit with non-zero status after issuing an
# appropriate message if it wants to stop the commit.  The hook is
# allowed to edit the commit message file.
#
# To enable this hook, rename this file to "applypatch-msg".

. git-sh-setup
commitmsg="$(git rev-parse --git-path hooks/commit-msg)"
test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"}
:


================================================
FILE: .git/hooks/commit-msg.sample
================================================
#!/bin/sh
#
# An example hook script to check the commit log message.
# Called by "git commit" with one argument, the name of the file
# that has the commit message.  The hook should exit with non-zero
# status after issuing an appropriate message if it wants to stop the
# commit.  The hook is allowed to edit the commit message file.
#
# To enable this hook, rename this file to "commit-msg".

# Uncomment the below to add a Signed-off-by line to the message.
# Doing this in a hook is a bad idea in general, but the prepare-commit-msg
# hook is more suited to it.
#
# SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"

# This example catches duplicate Signed-off-by lines.

test "" = "$(grep '^Signed-off-by: ' "$1" |
	 sort | uniq -c | sed -e '/^[ 	]*1[ 	]/d')" || {
	echo >&2 Duplicate Signed-off-by lines.
	exit 1
}


================================================
FILE: .git/hooks/fsmonitor-watchman.sample
================================================
#!/usr/bin/perl

use strict;
use warnings;
use IPC::Open2;

# An example hook script to integrate Watchman
# (https://facebook.github.io/watchman/) with git to speed up detecting
# new and modified files.
#
# The hook is passed a version (currently 2) and last update token
# formatted as a string and outputs to stdout a new update token and
# all files that have been modified since the update token. Paths must
# be relative to the root of the working tree and separated by a single NUL.
#
# To enable this hook, rename this file to "query-watchman" and set
# 'git config core.fsmonitor .git/hooks/query-watchman'
#
my ($version, $last_update_token) = @ARGV;

# Uncomment for debugging
# print STDERR "$0 $version $last_update_token\n";

# Check the hook interface version
if ($version ne 2) {
	die "Unsupported query-fsmonitor hook version '$version'.\n" .
	    "Falling back to scanning...\n";
}

my $git_work_tree = get_working_dir();

my $retry = 1;

my $json_pkg;
eval {
	require JSON::XS;
	$json_pkg = "JSON::XS";
	1;
} or do {
	require JSON::PP;
	$json_pkg = "JSON::PP";
};

launch_watchman();

sub launch_watchman {
	my $o = watchman_query();
	if (is_work_tree_watched($o)) {
		output_result($o->{clock}, @{$o->{files}});
	}
}

sub output_result {
	my ($clockid, @files) = @_;

	# Uncomment for debugging watchman output
	# open (my $fh, ">", ".git/watchman-output.out");
	# binmode $fh, ":utf8";
	# print $fh "$clockid\n@files\n";
	# close $fh;

	binmode STDOUT, ":utf8";
	print $clockid;
	print "\0";
	local $, = "\0";
	print @files;
}

sub watchman_clock {
	my $response = qx/watchman clock "$git_work_tree"/;
	die "Failed to get clock id on '$git_work_tree'.\n" .
		"Falling back to scanning...\n" if $? != 0;

	return $json_pkg->new->utf8->decode($response);
}

sub watchman_query {
	my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty')
	or die "open2() failed: $!\n" .
	"Falling back to scanning...\n";

	# In the query expression below we're asking for names of files that
	# changed since $last_update_token but not from the .git folder.
	#
	# To accomplish this, we're using the "since" generator to use the
	# recency index to select candidate nodes and "fields" to limit the
	# output to file names only. Then we're using the "expression" term to
	# further constrain the results.
	my $last_update_line = "";
	if (substr($last_update_token, 0, 1) eq "c") {
		$last_update_token = "\"$last_update_token\"";
		$last_update_line = qq[\n"since": $last_update_token,];
	}
	my $query = <<"	END";
		["query", "$git_work_tree", {$last_update_line
			"fields": ["name"],
			"expression": ["not", ["dirname", ".git"]]
		}]
	END

	# Uncomment for debugging the watchman query
	# open (my $fh, ">", ".git/watchman-query.json");
	# print $fh $query;
	# close $fh;

	print CHLD_IN $query;
	close CHLD_IN;
	my $response = do {local $/; <CHLD_OUT>};

	# Uncomment for debugging the watch response
	# open ($fh, ">", ".git/watchman-response.json");
	# print $fh $response;
	# close $fh;

	die "Watchman: command returned no output.\n" .
	"Falling back to scanning...\n" if $response eq "";
	die "Watchman: command returned invalid output: $response\n" .
	"Falling back to scanning...\n" unless $response =~ /^\{/;

	return $json_pkg->new->utf8->decode($response);
}

sub is_work_tree_watched {
	my ($output) = @_;
	my $error = $output->{error};
	if ($retry > 0 and $error and $error =~ m/unable to resolve root .* directory (.*) is not watched/) {
		$retry--;
		my $response = qx/watchman watch "$git_work_tree"/;
		die "Failed to make watchman watch '$git_work_tree'.\n" .
		    "Falling back to scanning...\n" if $? != 0;
		$output = $json_pkg->new->utf8->decode($response);
		$error = $output->{error};
		die "Watchman: $error.\n" .
		"Falling back to scanning...\n" if $error;

		# Uncomment for debugging watchman output
		# open (my $fh, ">", ".git/watchman-output.out");
		# close $fh;

		# Watchman will always return all files on the first query so
		# return the fast "everything is dirty" flag to git and do the
		# Watchman query just to get it over with now so we won't pay
		# the cost in git to look up each individual file.
		my $o = watchman_clock();
		$error = $output->{error};

		die "Watchman: $error.\n" .
		"Falling back to scanning...\n" if $error;

		output_result($o->{clock}, ("/"));
		$last_update_token = $o->{clock};

		eval { launch_watchman() };
		return 0;
	}

	die "Watchman: $error.\n" .
	"Falling back to scanning...\n" if $error;

	return 1;
}

sub get_working_dir {
	my $working_dir;
	if ($^O =~ 'msys' || $^O =~ 'cygwin') {
		$working_dir = Win32::GetCwd();
		$working_dir =~ tr/\\/\//;
	} else {
		require Cwd;
		$working_dir = Cwd::cwd();
	}

	return $working_dir;
}


================================================
FILE: .git/hooks/post-update.sample
================================================
#!/bin/sh
#
# An example hook script to prepare a packed repository for use over
# dumb transports.
#
# To enable this hook, rename this file to "post-update".

exec git update-server-info


================================================
FILE: .git/hooks/pre-applypatch.sample
================================================
#!/bin/sh
#
# An example hook script to verify what is about to be committed
# by applypatch from an e-mail message.
#
# The hook should exit with non-zero status after issuing an
# appropriate message if it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-applypatch".

. git-sh-setup
precommit="$(git rev-parse --git-path hooks/pre-commit)"
test -x "$precommit" && exec "$precommit" ${1+"$@"}
:


================================================
FILE: .git/hooks/pre-commit.sample
================================================
#!/bin/sh
#
# An example hook script to verify what is about to be committed.
# Called by "git commit" with no arguments.  The hook should
# exit with non-zero status after issuing an appropriate message if
# it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-commit".

if git rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Initial commit: diff against an empty tree object
	against=$(git hash-object -t tree /dev/null)
fi

# If you want to allow non-ASCII filenames set this variable to true.
allownonascii=$(git config --type=bool hooks.allownonascii)

# Redirect output to stderr.
exec 1>&2

# Cross platform projects tend to avoid non-ASCII filenames; prevent
# them from being added to the repository. We exploit the fact that the
# printable range starts at the space character and ends with tilde.
if [ "$allownonascii" != "true" ] &&
	# Note that the use of brackets around a tr range is ok here, (it's
	# even required, for portability to Solaris 10's /usr/bin/tr), since
	# the square bracket bytes happen to fall in the designated range.
	test $(git diff-index --cached --name-only --diff-filter=A -z $against |
	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
then
	cat <<\EOF
Error: Attempt to add a non-ASCII file name.

This can cause problems if you want to work with people on other platforms.

To be portable it is advisable to rename the file.

If you know what you are doing you can disable this check using:

  git config hooks.allownonascii true
EOF
	exit 1
fi

# If there are whitespace errors, print the offending file names and fail.
exec git diff-index --check --cached $against --


================================================
FILE: .git/hooks/pre-merge-commit.sample
================================================
#!/bin/sh
#
# An example hook script to verify what is about to be committed.
# Called by "git merge" with no arguments.  The hook should
# exit with non-zero status after issuing an appropriate message to
# stderr if it wants to stop the merge commit.
#
# To enable this hook, rename this file to "pre-merge-commit".

. git-sh-setup
test -x "$GIT_DIR/hooks/pre-commit" &&
        exec "$GIT_DIR/hooks/pre-commit"
:


================================================
FILE: .git/hooks/pre-push.sample
================================================
#!/bin/sh

# An example hook script to verify what is about to be pushed.  Called by "git
# push" after it has checked the remote status, but before anything has been
# pushed.  If this script exits with a non-zero status nothing will be pushed.
#
# This hook is called with the following parameters:
#
# $1 -- Name of the remote to which the push is being done
# $2 -- URL to which the push is being done
#
# If pushing without using a named remote those arguments will be equal.
#
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
#   <local ref> <local oid> <remote ref> <remote oid>
#
# This sample shows how to prevent push of commits where the log message starts
# with "WIP" (work in progress).

remote="$1"
url="$2"

zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')

while read local_ref local_oid remote_ref remote_oid
do
	if test "$local_oid" = "$zero"
	then
		# Handle delete
		:
	else
		if test "$remote_oid" = "$zero"
		then
			# New branch, examine all commits
			range="$local_oid"
		else
			# Update to existing branch, examine new commits
			range="$remote_oid..$local_oid"
		fi

		# Check for WIP commit
		commit=$(git rev-list -n 1 --grep '^WIP' "$range")
		if test -n "$commit"
		then
			echo >&2 "Found WIP commit in $local_ref, not pushing"
			exit 1
		fi
	fi
done

exit 0


================================================
FILE: .git/hooks/pre-rebase.sample
================================================
#!/bin/sh
#
# Copyright (c) 2006, 2008 Junio C Hamano
#
# The "pre-rebase" hook is run just before "git rebase" starts doing
# its job, and can prevent the command from running by exiting with
# non-zero status.
#
# The hook is called with the following parameters:
#
# $1 -- the upstream the series was forked from.
# $2 -- the branch being rebased (or empty when rebasing the current branch).
#
# This sample shows how to prevent topic branches that are already
# merged to 'next' branch from getting rebased, because allowing it
# would result in rebasing already published history.

publish=next
basebranch="$1"
if test "$#" = 2
then
	topic="refs/heads/$2"
else
	topic=`git symbolic-ref HEAD` ||
	exit 0 ;# we do not interrupt rebasing detached HEAD
fi

case "$topic" in
refs/heads/??/*)
	;;
*)
	exit 0 ;# we do not interrupt others.
	;;
esac

# Now we are dealing with a topic branch being rebased
# on top of master.  Is it OK to rebase it?

# Does the topic really exist?
git show-ref -q "$topic" || {
	echo >&2 "No such branch $topic"
	exit 1
}

# Is topic fully merged to master?
not_in_master=`git rev-list --pretty=oneline ^master "$topic"`
if test -z "$not_in_master"
then
	echo >&2 "$topic is fully merged to master; better remove it."
	exit 1 ;# we could allow it, but there is no point.
fi

# Is topic ever merged to next?  If so you should not be rebasing it.
only_next_1=`git rev-list ^master "^$topic" ${publish} | sort`
only_next_2=`git rev-list ^master           ${publish} | sort`
if test "$only_next_1" = "$only_next_2"
then
	not_in_topic=`git rev-list "^$topic" master`
	if test -z "$not_in_topic"
	then
		echo >&2 "$topic is already up to date with master"
		exit 1 ;# we could allow it, but there is no point.
	else
		exit 0
	fi
else
	not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"`
	/usr/bin/perl -e '
		my $topic = $ARGV[0];
		my $msg = "* $topic has commits already merged to public branch:\n";
		my (%not_in_next) = map {
			/^([0-9a-f]+) /;
			($1 => 1);
		} split(/\n/, $ARGV[1]);
		for my $elem (map {
				/^([0-9a-f]+) (.*)$/;
				[$1 => $2];
			} split(/\n/, $ARGV[2])) {
			if (!exists $not_in_next{$elem->[0]}) {
				if ($msg) {
					print STDERR $msg;
					undef $msg;
				}
				print STDERR " $elem->[1]\n";
			}
		}
	' "$topic" "$not_in_next" "$not_in_master"
	exit 1
fi

<<\DOC_END

This sample hook safeguards topic branches that have been
published from being rewound.

The workflow assumed here is:

 * Once a topic branch forks from "master", "master" is never
   merged into it again (either directly or indirectly).

 * Once a topic branch is fully cooked and merged into "master",
   it is deleted.  If you need to build on top of it to correct
   earlier mistakes, a new topic branch is created by forking at
   the tip of the "master".  This is not strictly necessary, but
   it makes it easier to keep your history simple.

 * Whenever you need to test or publish your changes to topic
   branches, merge them into "next" branch.

The script, being an example, hardcodes the publish branch name
to be "next", but it is trivial to make it configurable via
$GIT_DIR/config mechanism.

With this workflow, you would want to know:

(1) ... if a topic branch has ever been merged to "next".  Young
    topic branches can have stupid mistakes you would rather
    clean up before publishing, and things that have not been
    merged into other branches can be easily rebased without
    affecting other people.  But once it is published, you would
    not want to rewind it.

(2) ... if a topic branch has been fully merged to "master".
    Then you can delete it.  More importantly, you should not
    build on top of it -- other people may already want to
    change things related to the topic as patches against your
    "master", so if you need further changes, it is better to
    fork the topic (perhaps with the same name) afresh from the
    tip of "master".

Let's look at this example:

		   o---o---o---o---o---o---o---o---o---o "next"
		  /       /           /           /
		 /   a---a---b A     /           /
		/   /               /           /
	       /   /   c---c---c---c B         /
	      /   /   /             \         /
	     /   /   /   b---b C     \       /
	    /   /   /   /             \     /
    ---o---o---o---o---o---o---o---o---o---o---o "master"


A, B and C are topic branches.

 * A has one fix since it was merged up to "next".

 * B has finished.  It has been fully merged up to "master" and "next",
   and is ready to be deleted.

 * C has not merged to "next" at all.

We would want to allow C to be rebased, refuse A, and encourage
B to be deleted.

To compute (1):

	git rev-list ^master ^topic next
	git rev-list ^master        next

	if these match, topic has not merged in next at all.

To compute (2):

	git rev-list master..topic

	if this is empty, it is fully merged to "master".

DOC_END


================================================
FILE: .git/hooks/pre-receive.sample
================================================
#!/bin/sh
#
# An example hook script to make use of push options.
# The example simply echoes all push options that start with 'echoback='
# and rejects all pushes when the "reject" push option is used.
#
# To enable this hook, rename this file to "pre-receive".

if test -n "$GIT_PUSH_OPTION_COUNT"
then
	i=0
	while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"
	do
		eval "value=\$GIT_PUSH_OPTION_$i"
		case "$value" in
		echoback=*)
			echo "echo from the pre-receive-hook: ${value#*=}" >&2
			;;
		reject)
			exit 1
		esac
		i=$((i + 1))
	done
fi


================================================
FILE: .git/hooks/prepare-commit-msg.sample
================================================
#!/bin/sh
#
# An example hook script to prepare the commit log message.
# Called by "git commit" with the name of the file that has the
# commit message, followed by the description of the commit
# message's source.  The hook's purpose is to edit the commit
# message file.  If the hook fails with a non-zero status,
# the commit is aborted.
#
# To enable this hook, rename this file to "prepare-commit-msg".

# This hook includes three examples. The first one removes the
# "# Please enter the commit message..." help message.
#
# The second includes the output of "git diff --name-status -r"
# into the message, just before the "git status" output.  It is
# commented because it doesn't cope with --amend or with squashed
# commits.
#
# The third example adds a Signed-off-by line to the message, that can
# still be edited.  This is rarely a good idea.

COMMIT_MSG_FILE=$1
COMMIT_SOURCE=$2
SHA1=$3

/usr/bin/perl -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE"

# case "$COMMIT_SOURCE,$SHA1" in
#  ,|template,)
#    /usr/bin/perl -i.bak -pe '
#       print "\n" . `git diff --cached --name-status -r`
# 	 if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;;
#  *) ;;
# esac

# SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
# git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE"
# if test -z "$COMMIT_SOURCE"
# then
#   /usr/bin/perl -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE"
# fi


================================================
FILE: .git/hooks/push-to-checkout.sample
================================================
#!/bin/sh

# An example hook script to update a checked-out tree on a git push.
#
# This hook is invoked by git-receive-pack(1) when it reacts to git
# push and updates reference(s) in its repository, and when the push
# tries to update the branch that is currently checked out and the
# receive.denyCurrentBranch configuration variable is set to
# updateInstead.
#
# By default, such a push is refused if the working tree and the index
# of the remote repository has any difference from the currently
# checked out commit; when both the working tree and the index match
# the current commit, they are updated to match the newly pushed tip
# of the branch. This hook is to be used to override the default
# behaviour; however the code below reimplements the default behaviour
# as a starting point for convenient modification.
#
# The hook receives the commit with which the tip of the current
# branch is going to be updated:
commit=$1

# It can exit with a non-zero status to refuse the push (when it does
# so, it must not modify the index or the working tree).
die () {
	echo >&2 "$*"
	exit 1
}

# Or it can make any necessary changes to the working tree and to the
# index to bring them to the desired state when the tip of the current
# branch is updated to the new commit, and exit with a zero status.
#
# For example, the hook can simply run git read-tree -u -m HEAD "$1"
# in order to emulate git fetch that is run in the reverse direction
# with git push, as the two-tree form of git read-tree -u -m is
# essentially the same as git switch or git checkout that switches
# branches while keeping the local changes in the working tree that do
# not interfere with the difference between the branches.

# The below is a more-or-less exact translation to shell of the C code
# for the default behaviour for git's push-to-checkout hook defined in
# the push_to_deploy() function in builtin/receive-pack.c.
#
# Note that the hook will be executed from the repository directory,
# not from the working tree, so if you want to perform operations on
# the working tree, you will have to adapt your code accordingly, e.g.
# by adding "cd .." or using relative paths.

if ! git update-index -q --ignore-submodules --refresh
then
	die "Up-to-date check failed"
fi

if ! git diff-files --quiet --ignore-submodules --
then
	die "Working directory has unstaged changes"
fi

# This is a rough translation of:
#
#   head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX
if git cat-file -e HEAD 2>/dev/null
then
	head=HEAD
else
	head=$(git hash-object -t tree --stdin </dev/null)
fi

if ! git diff-index --quiet --cached --ignore-submodules $head --
then
	die "Working directory has staged changes"
fi

if ! git read-tree -u -m "$commit"
then
	die "Could not update working tree to new HEAD"
fi


================================================
FILE: .git/hooks/sendemail-validate.sample
================================================
#!/bin/sh

# An example hook script to validate a patch (and/or patch series) before
# sending it via email.
#
# The hook should exit with non-zero status after issuing an appropriate
# message if it wants to prevent the email(s) from being sent.
#
# To enable this hook, rename this file to "sendemail-validate".
#
# By default, it will only check that the patch(es) can be applied on top of
# the default upstream branch without conflicts in a secondary worktree. After
# validation (successful or not) of the last patch of a series, the worktree
# will be deleted.
#
# The following config variables can be set to change the default remote and
# remote ref that are used to apply the patches against:
#
#   sendemail.validateRemote (default: origin)
#   sendemail.validateRemoteRef (default: HEAD)
#
# Replace the TODO placeholders with appropriate checks according to your
# needs.

validate_cover_letter () {
	file="$1"
	# TODO: Replace with appropriate checks (e.g. spell checking).
	true
}

validate_patch () {
	file="$1"
	# Ensure that the patch applies without conflicts.
	git am -3 "$file" || return
	# TODO: Replace with appropriate checks for this patch
	# (e.g. checkpatch.pl).
	true
}

validate_series () {
	# TODO: Replace with appropriate checks for the whole series
	# (e.g. quick build, coding style checks, etc.).
	true
}

# main -------------------------------------------------------------------------

if test "$GIT_SENDEMAIL_FILE_COUNTER" = 1
then
	remote=$(git config --default origin --get sendemail.validateRemote) &&
	ref=$(git config --default HEAD --get sendemail.validateRemoteRef) &&
	worktree=$(mktemp --tmpdir -d sendemail-validate.XXXXXXX) &&
	git worktree add -fd --checkout "$worktree" "refs/remotes/$remote/$ref" &&
	git config --replace-all sendemail.validateWorktree "$worktree"
else
	worktree=$(git config --get sendemail.validateWorktree)
fi || {
	echo "sendemail-validate: error: failed to prepare worktree" >&2
	exit 1
}

unset GIT_DIR GIT_WORK_TREE
cd "$worktree" &&

if grep -q "^diff --git " "$1"
then
	validate_patch "$1"
else
	validate_cover_letter "$1"
fi &&

if test "$GIT_SENDEMAIL_FILE_COUNTER" = "$GIT_SENDEMAIL_FILE_TOTAL"
then
	git config --unset-all sendemail.validateWorktree &&
	trap 'git worktree remove -ff "$worktree"' EXIT &&
	validate_series
fi


================================================
FILE: .git/hooks/update.sample
================================================
#!/bin/sh
#
# An example hook script to block unannotated tags from entering.
# Called by "git receive-pack" with arguments: refname sha1-old sha1-new
#
# To enable this hook, rename this file to "update".
#
# Config
# ------
# hooks.allowunannotated
#   This boolean sets whether unannotated tags will be allowed into the
#   repository.  By default they won't be.
# hooks.allowdeletetag
#   This boolean sets whether deleting tags will be allowed in the
#   repository.  By default they won't be.
# hooks.allowmodifytag
#   This boolean sets whether a tag may be modified after creation. By default
#   it won't be.
# hooks.allowdeletebranch
#   This boolean sets whether deleting branches will be allowed in the
#   repository.  By default they won't be.
# hooks.denycreatebranch
#   This boolean sets whether remotely creating branches will be denied
#   in the repository.  By default this is allowed.
#

# --- Command line
refname="$1"
oldrev="$2"
newrev="$3"

# --- Safety check
if [ -z "$GIT_DIR" ]; then
	echo "Don't run this script from the command line." >&2
	echo " (if you want, you could supply GIT_DIR then run" >&2
	echo "  $0 <ref> <oldrev> <newrev>)" >&2
	exit 1
fi

if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
	echo "usage: $0 <ref> <oldrev> <newrev>" >&2
	exit 1
fi

# --- Config
allowunannotated=$(git config --type=bool hooks.allowunannotated)
allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch)
denycreatebranch=$(git config --type=bool hooks.denycreatebranch)
allowdeletetag=$(git config --type=bool hooks.allowdeletetag)
allowmodifytag=$(git config --type=bool hooks.allowmodifytag)

# check for no description
projectdesc=$(sed -e '1q' "$GIT_DIR/description")
case "$projectdesc" in
"Unnamed repository"* | "")
	echo "*** Project description file hasn't been set" >&2
	exit 1
	;;
esac

# --- Check types
# if $newrev is 0000...0000, it's a commit to delete a ref.
zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
if [ "$newrev" = "$zero" ]; then
	newrev_type=delete
else
	newrev_type=$(git cat-file -t $newrev)
fi

case "$refname","$newrev_type" in
	refs/tags/*,commit)
		# un-annotated tag
		short_refname=${refname##refs/tags/}
		if [ "$allowunannotated" != "true" ]; then
			echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
			echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
			exit 1
		fi
		;;
	refs/tags/*,delete)
		# delete tag
		if [ "$allowdeletetag" != "true" ]; then
			echo "*** Deleting a tag is not allowed in this repository" >&2
			exit 1
		fi
		;;
	refs/tags/*,tag)
		# annotated tag
		if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
		then
			echo "*** Tag '$refname' already exists." >&2
			echo "*** Modifying a tag is not allowed in this repository." >&2
			exit 1
		fi
		;;
	refs/heads/*,commit)
		# branch
		if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
			echo "*** Creating a branch is not allowed in this repository" >&2
			exit 1
		fi
		;;
	refs/heads/*,delete)
		# delete branch
		if [ "$allowdeletebranch" != "true" ]; then
			echo "*** Deleting a branch is not allowed in this repository" >&2
			exit 1
		fi
		;;
	refs/remotes/*,commit)
		# tracking branch
		;;
	refs/remotes/*,delete)
		# delete tracking branch
		if [ "$allowdeletebranch" != "true" ]; then
			echo "*** Deleting a tracking branch is not allowed in this repository" >&2
			exit 1
		fi
		;;
	*)
		# Anything else (is there anything else?)
		echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
		exit 1
		;;
esac

# --- Finished
exit 0


================================================
FILE: .git/info/exclude
================================================
# git ls-files --others --exclude-from=.git/info/exclude
# Lines that start with '#' are comments.
# For a project mostly in C, the following would be a good set of
# exclude patterns (uncomment them if you want to use them):
# *.[oa]
# *~


================================================
FILE: .git/objects/pack/pack-781ecb6e2345c2c9a6b59ce8a39eea6c3917b225.promisor
================================================
83ecec8af71e7496bfa7dd0abac59cf42a75085f refs/heads/master


================================================
FILE: .git/packed-refs
================================================
# pack-refs with: peeled fully-peeled sorted 
83ecec8af71e7496bfa7dd0abac59cf42a75085f refs/remotes/origin/master


================================================
FILE: .git/refs/heads/master
================================================
83ecec8af71e7496bfa7dd0abac59cf42a75085f


================================================
FILE: .git/refs/remotes/origin/HEAD
================================================
ref: refs/remotes/origin/master


================================================
FILE: .git/shallow
================================================
83ecec8af71e7496bfa7dd0abac59cf42a75085f


================================================
FILE: .gitattributes
================================================
*.xmind filter=lfs diff=lfs merge=lfs -text
*.zip filter=lfs diff=lfs merge=lfs -text
*.pdf filter=lfs diff=lfs merge=lfs -text


================================================
FILE: .github/ISSUE_TEMPLATE/bug_report.md
================================================
---
name: Bug report
about: Create a report to help us improve
title: ""
labels: ""
assignees: ""
---

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Desktop (please complete the following information):**

- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Smartphone (please complete the following information):**

- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]

**Additional context**
Add any other context about the problem here.


================================================
FILE: .github/ISSUE_TEMPLATE/custom.md
================================================
---
name: Custom issue template
about: Describe this issue template's purpose here.
title: ""
labels: ""
assignees: ""
---


================================================
FILE: .github/ISSUE_TEMPLATE/feature_request.md
================================================
---
name: Feature request
about: Suggest an idea for this project
title: ""
labels: ""
assignees: ""
---

**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

**Describe the solution you'd like**
A clear and concise description of what you want to happen.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.


================================================
FILE: .github/META/ABOUT.md
================================================
# 关于

# 规划


================================================
FILE: .github/META/SUMMARY.md
================================================
# Summary

## [DevOps](../DevOps/README.md)

- [Introduction](../DevOps/README.md)

- [OpenTracing](../DevOps/OpenTracing/README.md)
- [分布式追踪](../DevOps/分布式追踪/README.md)
  - [开源对比](../DevOps/分布式追踪/开源对比.md)
  - [系统设计](../DevOps/分布式追踪/系统设计.md)
- [变更与发布](../DevOps/变更与发布/README.md)
  - [多策略部署](../DevOps/变更与发布/多策略部署.md)
  - [风险评估](../DevOps/变更与发布/风险评估.md)
- [安全加固](../DevOps/安全加固/README.md)
  - [Linux](../DevOps/安全加固/Linux.md)
  - [文件备份](../DevOps/安全加固/文件备份.md)
- [性能监控工具](../DevOps/性能监控工具/README.md)
  - [CPU](../DevOps/性能监控工具/CPU.md)
  - [中间件](../DevOps/性能监控工具/中间件.md)
  - [内存](../DevOps/性能监控工具/内存.md)
  - [应用](../DevOps/性能监控工具/应用.md)
  - [磁盘](../DevOps/性能监控工具/磁盘.md)
  - [网络](../DevOps/性能监控工具/网络.md)
- [持续集成](../DevOps/持续集成/README.md)
  - [CI](../DevOps/持续集成/CI.md)
  - [Jenkins](../DevOps/持续集成/Jenkins/README.md)
  - [Spinnaker](../DevOps/持续集成/Spinnaker/README.md)
    - [部署配置](../DevOps/持续集成/Spinnaker/部署配置.md)
  - [Tekton](../DevOps/持续集成/Tekton/README.md)
- [日志聚合](../DevOps/日志聚合/README.md)
  - [ELK](../DevOps/日志聚合/ELK/README.md)
  - [Flume](../DevOps/日志聚合/Flume/README.md)
    - [安装与配置](../DevOps/日志聚合/Flume/安装与配置.md)
    - [组件类型](../DevOps/日志聚合/Flume/组件类型.md)
  - [系统设计](../DevOps/日志聚合/系统设计/README.md)
    - [多租户隔离](../DevOps/日志聚合/系统设计/多租户隔离.md)
    - [采集与调度](../DevOps/日志聚合/系统设计/采集与调度.md)
- [监控体系](../DevOps/监控体系/README.md)
  - [业务指标](../DevOps/监控体系/业务指标.md)
  - [异常检测](../DevOps/监控体系/异常检测.md)
  - [监控体系的演化](../DevOps/监控体系/监控体系的演化.md)
  - [系统设计](../DevOps/监控体系/系统设计.md)
  - [统计与告警](../DevOps/监控体系/统计与告警.md)
- [系统案例](../DevOps/系统案例/README.md)
  - [典型系统](../DevOps/系统案例/典型系统.md)
- [自动化运维](../DevOps/自动化运维/README.md)
  - [体系设计](../DevOps/自动化运维/体系设计.md)
  - [场景分析](../DevOps/自动化运维/场景分析.md)
- [运维脚本](../DevOps/运维脚本/README.md)
  - [数据库](../DevOps/运维脚本/数据库.md)

## [Spring](../Spring/README.md)

- [Introduction](../Spring/README.md)

## [信息安全与渗透测试](../信息安全与渗透测试/README.md)

- [Introduction](../信息安全与渗透测试/README.md)

- [Web 安全](../信息安全与渗透测试/Web 安全/README.md)
  - [CSRF](../信息安全与渗透测试/Web 安全/CSRF/README.md)
    - [攻击实例](../信息安全与渗透测试/Web 安全/CSRF/攻击实例.md)
    - [漏洞检测](../信息安全与渗透测试/Web 安全/CSRF/漏洞检测.md)
    - [防御修复](../信息安全与渗透测试/Web 安全/CSRF/防御修复.md)
  - [SQL 注入](../信息安全与渗透测试/Web 安全/SQL 注入/README.md)
  - [XSS](../信息安全与渗透测试/Web 安全/XSS/README.md)
    - [攻击实例](../信息安全与渗透测试/Web 安全/XSS/攻击实例.md)
    - [漏洞检测](../信息安全与渗透测试/Web 安全/XSS/漏洞检测.md)
    - [防御修复](../信息安全与渗透测试/Web 安全/XSS/防御修复.md)
  - [文件上传漏洞](../信息安全与渗透测试/Web 安全/文件上传漏洞/README.md)
  - [浏览器安全](../信息安全与渗透测试/Web 安全/浏览器安全/README.md)
  - [点击劫持](../信息安全与渗透测试/Web 安全/点击劫持/README.md)
  - [编码校验](../信息安全与渗透测试/Web 安全/编码校验/README.md)
    - [代码混淆](../信息安全与渗透测试/Web 安全/编码校验/代码混淆.md)
    - [自动填充](../信息安全与渗透测试/Web 安全/编码校验/自动填充.md)
- [公钥](../信息安全与渗透测试/公钥/README.md)
  - [PKI](../信息安全与渗透测试/公钥/PKI.md)
- [分布式扫描器](../信息安全与渗透测试/分布式扫描器/README.md)
  - [分布式扫描调度](../信息安全与渗透测试/分布式扫描器/分布式扫描调度.md)
  - [半自动化扫描](../信息安全与渗透测试/分布式扫描器/半自动化扫描.md)
  - [基础扫描](../信息安全与渗透测试/分布式扫描器/基础扫描.md)
  - [数字资产管理](../信息安全与渗透测试/分布式扫描器/数字资产管理.md)
- [安全更新](../信息安全与渗透测试/安全更新/README.md)
  - [TUF](../信息安全与渗透测试/安全更新/TUF/README.md)
- [数据安全](../信息安全与渗透测试/数据安全/README.md)
- [渗透测试](../信息安全与渗透测试/渗透测试/README.md)
- [爬虫](../信息安全与渗透测试/爬虫/README.md)
  - [Scrapy](../信息安全与渗透测试/爬虫/Scrapy/README.md)
  - [系统设计](../信息安全与渗透测试/爬虫/系统设计/README.md)
    - [分布式爬虫](../信息安全与渗透测试/爬虫/系统设计/分布式爬虫.md)
    - [动态爬虫](../信息安全与渗透测试/爬虫/系统设计/动态爬虫.md)
    - [反爬虫对抗](../信息安全与渗透测试/爬虫/系统设计/反爬虫对抗.md)
  - [验证码绕过](../信息安全与渗透测试/爬虫/验证码绕过/README.md)
    - [滑动验证](../信息安全与渗透测试/爬虫/验证码绕过/滑动验证.md)
- [网络安全](../信息安全与渗透测试/网络安全/README.md)
  - [TCP 安全](../信息安全与渗透测试/网络安全/TCP 安全.md)

## [功能域](../功能域/README.md)

- [Introduction](../功能域/README.md)

- [CMS](../功能域/CMS/README.md)
  - [在线协作编辑](../功能域/CMS/在线协作编辑.md)
- [LBS](../功能域/LBS/README.md)
- [即时通信](../功能域/即时通信/README.md)
  - [Feed](../功能域/即时通信/Feed/README.md)
  - [IM Scratch](../功能域/即时通信/IM Scratch/README.md)
    - [基于 Java 的 IM 系统](../功能域/即时通信/IM Scratch/基于 Java 的 IM 系统.md)
  - [WebRTC](../功能域/即时通信/WebRTC/README.md)
  - [XMPP](../功能域/即时通信/XMPP/README.md)
    - [协议规范](../功能域/即时通信/XMPP/协议规范.md)
  - [直播协议](../功能域/即时通信/直播协议/README.md)
  - [直播系统](../功能域/即时通信/直播系统/README.md)
  - [编解码](../功能域/即时通信/编解码/README.md)
    - [视频封装格式](../功能域/即时通信/编解码/视频封装格式.md)
    - [视频编解码](../功能域/即时通信/编解码/视频编解码.md)
  - [网络传输](../功能域/即时通信/网络传输/README.md)
- [开放平台](../功能域/开放平台/README.md)
  - [微信](../功能域/开放平台/微信/README.md)
  - [支付宝](../功能域/开放平台/支付宝/README.md)
- [流程引擎](../功能域/流程引擎/README.md)
  - [Activiti](../功能域/流程引擎/Activiti/README.md)
  - [BPMN](../功能域/流程引擎/BPMN/README.md)
    - [BPMN 规范](../功能域/流程引擎/BPMN/BPMN 规范.md)

## [微服务架构](../微服务架构/README.md)

- [Introduction](../微服务架构/README.md)

## [测试与高可用保障](../测试与高可用保障/README.md)

- [Introduction](../测试与高可用保障/README.md)


================================================
FILE: .gitignore
================================================
# Ignore all
*

# Unignore all with extensions
!*.*

# Unignore all dirs
!*/

.DS_Store

# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*

# Runtime data
pids
*.pid
*.seed
*.pid.lock

# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov

# Coverage directory used by tools like istanbul
coverage

# nyc test coverage
.nyc_output

# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
.grunt

# Bower dependency directory (https://bower.io/)
bower_components

# node-waf configuration
.lock-wscript

# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release

# Dependency directories
node_modules/
jspm_packages/

# TypeScript v1 declaration files
typings/

# Optional npm cache directory
.npm

# Optional eslint cache
.eslintcache

# Optional REPL history
.node_repl_history

# Output of 'npm pack'
*.tgz

# Yarn Integrity file
.yarn-integrity

# dotenv environment variables file
.env

# next.js build output
.next


================================================
FILE: .nojekyll
================================================


================================================
FILE: INTRODUCTION.md
================================================
# 本篇导读


================================================
FILE: README.md
================================================
![题图](https://pic.imgdb.cn/item/638b122516f2c2beb1b3717a.jpg)

# 服务端开发实践与工程架构

在[某熊的技术之路指北 ☯](https://github.com/wx-chevalier/Developer-Zero-To-Mastery)中我们介绍过，本系列[服务端架构与实践](https://github.com/wx-chevalier/Backend-Notes)与[深入浅出分布式基础架构](https://github.com/wx-chevalier/Distributed-Infrastructure-Notes)这两个系列承载了笔者在泛服务端开发、运维相关工作中的知识沉淀。

# Introduction | 前言

```
System = Backend + Frontend + Architecture + Engineering
```

过去数十年间，信息技术的浪潮深刻地改变了这个社会的通信、交流与协作模式，我们熟知的互联网也经历了基于流量点击赢利的单方面信息发布的 Web 1.0 业务模式，转变为由用户主导而生成内容的 Web 2.0 业务模式；在可见的将来随着 3D 相关技术的落地，互联网应用系统所需处理的访问量和数据量必然会再次爆发性增长。

![服务衍化](https://ngte-superbed.oss-cn-beijing.aliyuncs.com/item/20230417205745.png)

在分布式系统的背景下，企业架构也由早期的单体式应用架构渐渐转为更加灵活的分布式应用架构，经历了单体分层架构、SOA 服务化架构、微服务架构、云原生架构等不同架构模式的变迁。后端开发不再局限于单一技术栈，并且为了应对更加庞大的集群规模，单纯的分布式系统已经难于驾驭，因此技术圈开启了一个概念爆发的时代：SOA、DevOps、容器、CI/CD、微服务、Service Mesh 等概念层出不穷，而 Docker、Kubernetes、Mesos、Spring Cloud、gRPC、Istio 等一系列产品的出现，标志着云时代已真正到来。

本系列着眼于服务端应用层的相关内容，包含了服务端基础、微服务与云原生、DevOps、测试与高可用保障等内容。

![image.png](https://ngte-superbed.oss-cn-beijing.aliyuncs.com/item/20230417205728.png)

- UI 交互层：Windows UI、PC Web UI、移动 App UI、微信小程序 UI、摄像头视觉识别人机界面、语音交互人机界面；

- 应用层：无数碎片化的、场景化的前台业务应用，如零售、采购、招聘、报销等；

- 业务中台：协同平台（工作流引擎/消息引擎等）、应用组件（聚合支付/电子发票/电子合同/自动报税等等）、集成开发平台/定制开发平台/实施平台/运维平台，如零售中台、人力中台、财务中台等；

- 数据与算法中台：数据库/NOSQL 数据库、大数据计算平台/数据仓库数据湖/可视化、人工智能 NLP/机器学习、大数据技术平台（如 Hadoop 和 Spark）、AI 技术引擎；

- 中间件：微服务中间件、面向对象技术/组件技术/SOA、服务中间件/微服务中间件技术；

- 基础设施层：云计算 IaaS（服务器、存储、网络、文件系统）、云 IaaS 平台；

![mindmap](https://ngte-superbed.oss-cn-beijing.aliyuncs.com/item/20230417205616.png)

# Nav | 关联导航

- 如果你想了解具体的开发框架，可以参阅 [Spring Series](https://ng-tech.icu/books/Spring-Notes/#/)、[Node Series](https://ng-tech.icu/books/Node-Notes/#/)。

- 如果你想了解微服务架构相关，请参阅 [MicroService-Notes](https://github.com/wx-chevalier/MicroService-Notes)。

# About

## Copyright & More | 延伸阅读

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笔者所有文章遵循 [知识共享 署名-非商业性使用-禁止演绎 4.0 国际许可协议](https://creativecommons.org/licenses/by-nc-nd/4.0/deed.zh)，欢迎转载，尊重版权。您还可以前往 [NGTE Books](https://ng-tech.icu/books-gallery/) 主页浏览包含知识体系、编程语言、软件工程、模式与架构、Web 与大前端、服务端开发实践与工程架构、分布式基础架构、人工智能与深度学习、产品运营与创业等多类目的书籍列表：

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