# This file is part of shellfire git. It is subject to the licence terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/shellfire-dev/git/master/COPYRIGHT. No part of shellfire git, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.

# Copyright © 2014-2015 The developers of shellfire git. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/shellfire-dev/git/master/COPYRIGHT.

core_dependency_requires '*' git

git_withOutputSilencedIfQuiet()

{

local verbosityLevel=$1

local gitCommand="$2"

shift 2

if [ "$(core_init_verbosity)" -lt $verbosityLevel ]; then

set -- -q "$@"

else

set -- "$@"

fi

git "$gitCommand" "$@"

}

git_inRepository()

{

local repositoryFolderPath="$1"

shift 1

pushd "$repositoryFolderPath"

"$@"

popd

}

git_inRepositorySilently()

{

local repositoryFolderPath="$1"

shift 1

git_inRepository "$repositoryFolderPath" git_withOutputSilencedIfQuiet 2 "$@"

}

core_dependency_requires '*' git

git_doesNotHaveTagPattern()

{

local repositoryFolderPath="$1"

local tagName="$2"

local tags="$(git_inRepository "$repositoryFolderPath" git tag --list "$tagName")"

if [ -z "$tags" ]; then

return 0

else

return 1

fi

}

git_checkout()

{

local repositoryFolderPath="$1"

shift 1

git_inRepositorySilently "$repositoryFolderPath" checkout "$@"

}

git_push()

{

local repositoryFolderPath="$1"

shift 1

if core_variable_isSet _git_pushDryRun; then

if $_git_pushDryRun; then

core_message WARN "Dry run of git push $@"

return 0

fi

fi

git_inRepositorySilently "$repositoryFolderPath" push "$@"

}

git_pull()

{

local repositoryFolderPath="$1"

shift 1

git_inRepositorySilently "$repositoryFolderPath" pull "$@"

}

git_commit()

{

local repositoryFolderPath="$1"

shift 1

git_inRepositorySilently "$repositoryFolderPath" commit "$@"

}

git_branch()

{

local repositoryFolderPath="$1"

shift 1

git_inRepositorySilently "$repositoryFolderPath" branch "$@"

}

core_dependency_requires '*' git

git_mostRecentCommit()

{

local repositoryFolderPath="$1"

git_mostRecent "$repositoryFolderPath" '%H'

}

git_mostRecent()

{

local repositoryFolderPath="$1"

local format="$2"

git_inRepository "$repositoryFolderPath" git log -n 1 --format="format:$format"

}

core_dependency_requires '*' git

git_commitToTagOrCommit()

{

local repositoryFolderPath="$1"

local commit="$2"

pushd "$repositoryFolderPath"

set +e

local tag="$(git describe --tags --exact-match "$commit" 2>/dev/null)"

set -e

popd

if [ -n "$tag" ]; then

printf '%s' "$tag"

else

printf '%s' "$commit"

fi

}

git_clean()

{

local repositoryFolderPath="$1"

local repositoryCommit="$2"

git_inRepositorySilently "$repositoryFolderPath" clean -d -f -x

git_inRepositorySilently "$repositoryFolderPath" reset --hard "$repositoryCommit"

pushd "$repositoryFolderPath"

local submodule

while IFS= read -r submodule

do

if [ -n "$submodule" ]; then

git_clean "$submodule" HEAD

fi

done <<-EOF

$(git submodule foreach -q 'echo "$path"')

EOF

popd

}

core_dependency_requires '*' git

git_tag()

{

local repositoryFolderPath="$1"

local tagName="$2"

local tagMessage="$3"

if git_doesNotHaveTagPattern "$repositoryFolderPath" "$tagName"; then

git_inRepository "$repositoryFolderPath" git tag -a -m "$tagMessage" "$tagName"

fi

git_push "$repositoryFolderPath" origin "$tagName"

}

git_tagUsingBaseName()

{

local repositoryFolderPath="$1"

local tagBaseName="$2"

local tagMessage="$3"

local tagName

local count=1

while true

do

tagName="$tagBaseName"-$count

if git_doesNotHaveTagPattern "$repositoryFolderPath" "$tagName"; then

break

fi

count=$((count+1))

done

git_tag "$repositoryFolderPath" "$tagName" "$tagMessage"

_git_tagNameChosen="$tagName"

}

core_dependency_requires '*' git

git_tagUpstream()

{

local repositoryFolderPath="$1"

local upstreamTagName="upstream-$(git_mostRecent "$repositoryFolderPath" '%at-%H')"

local longCommitHash="$(git_mostRecentCommit "$repositoryFolderPath")"

local iso8601Date="$(git_mostRecent "$repositoryFolderPath" '%aI')"

local upstreamTagMessage="Imported from upstream at '$iso8601Date' from revision '$longCommitHash'"

git_tag "$repositoryFolderPath" "$upstreamTagName" "$upstreamTagMessage"

}

core_dependency_requires '*' cat

git_patchAm()

{

local repositoryFolderPath="$1"

local patchFilePath="$2"

cat "$patchFilePath" | git_inRepositorySilently "$repositoryFolderPath" am --3way

}

git_addAll()

{

local repositoryFolderPath="$1"

shift 1

git_inRepository "$repositoryFolderPath" git add -A .

}

git_cherrypicks()

{

local repositoryFolderPath="$1"

local rationale="$2"

shift 2

git_inRepositorySilently "$repositoryFolderPath" cherry-pick --strategy=recursive -X theirs "$@"

}

git_addGitHubClone()

{

local repositoryParentPath="$1"

local repositoryUser="$2"

local repositoryName="$3"

local repositoryFolderPath="$repositoryParentPath"/"$repositoryName"

if [ -d "$repositoryFolderPath"/.git ]; then

return 0

fi

if [ -f "$repositoryFolderPath"/.git ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Clone '$repositoryName' already exists as git submodule (not repository) in path '$repositoryParentPath'"

fi

if [ -e "$repositoryFolderPath" ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Clone '$repositoryName' already exists as something (not repository) in path '$repositoryParentPath'"

fi

pushd "$repositoryParentPath"

git_withOutputSilencedIfQuiet 2 clone git@github.com:"$repositoryUser"/"$repositoryName".git

popd

git_inRepositorySilently "$repositoryFolderPath" submodule update --init --recursive

}

git_addGitHubSubmodule()

{

local repositoryParentPath="$1"

local repositoryUser="$2"

local repositoryName="$3"

local repositoryFolderPath="$repositoryParentPath"/"$repositoryName"

if [ -f "$repositoryFolderPath"/.git ]; then

return 0

fi

if [ -d "$repositoryFolderPath"/.git ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Submodule '$repositoryName' already exists as git repository (not submodule) in path '$repositoryParentPath'"

fi

if [ -e "$repositoryFolderPath" ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Submodule '$repositoryName' already exists as something (not submodule) in path '$repositoryParentPath'"

fi

pushd "$repositoryParentPath"

git_withOutputSilencedIfQuiet 2 submodule add https://github.com/"$repositoryUser"/"$repositoryName".git

popd

git_inRepositorySilently "$repositoryFolderPath" submodule update --init --recursive

}

git_addGitHubInit()

{

local repositoryParentPath="$1"

local repositoryUser="$2"

local repositoryName="$3"

pushd "$repositoryParentPath"

if [ -d "$repositoryName"/.git ]; then

git_addOriginRemoteIdempotently "$repositoryParentPath"/"$repositoryName" git@github.com:"$repositoryUser"/"$repositoryName".git

return 0

fi

if [ -f "$repositoryName"/.git ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Init '$repositoryName' already exists as git submodule (not submodule) in path '$repositoryParentPath'"

fi

if [ -e "$repositoryName" ]; then

core_exitError $core_commandLine_exitCode_CANTCREAT "Init '$repositoryName' already exists as something in path '$repositoryParentPath'"

fi

git_withOutputSilencedIfQuiet 2 init "$repositoryName"

popd

git_addOriginRemoteIdempotently "$repositoryParentPath"/"$repositoryName" git@github.com:"$repositoryUser"/"$repositoryName".git

}

core_dependency_requires '*' git

git_addUpstreamRemoteIdempotently()

{

local repositoryFolderPath="$1"

local upstreamRemote="$2"

git_inRepository "$repositoryFolderPath" git remote add -f --tags upstream "$upstreamRemote" 1>/dev/null 2>/dev/null || git_fetchFromUpstreamRemote "$repositoryFolderPath"

}

core_dependency_requires '*' git

git_addOriginRemoteIdempotently()

{

local repositoryFolderPath="$1"

local originRemote="$2"

git_inRepository "$repositoryFolderPath" git remote add -f --tags origin "$originRemote" 1>/dev/null 2>/dev/null || git_fetchFromOriginRemote "$repositoryFolderPath"

}

git_fetchFromUpstreamRemote()

{

local repositoryFolderPath="$1"

git_fetchFromRemote "$repositoryFolderPath" upstream

}

git_fetchFromOriginRemote()

{

local repositoryFolderPath="$1"

git_fetchFromRemote "$repositoryFolderPath" origin

}

git_fetchFromRemote()

{

local repositoryFolderPath="$1"

local remote="$2"

git_inRepositorySilently "$repositoryFolderPath" fetch "$remote"

}

core_dependency_requires '*' git

git_removeAllLocalTags()

{

local repositoryFolderPath="$1"

pushd "$repositoryFolderPath"

# Note, absence of quotes is correct

# 2>/dev/null because there is no -q option

git tag -d $(git tag) 2>/dev/null

local remote

while IFS= read -r remote

do

if [ -n "$remote" ]; then

git fetch --tags "$remote"

fi

done <<-EOF

$(git remote)

EOF

popd

}

core_dependency_requires '*' cat git awk sed touch env

git_changeTimestampsToLastCommit()

{

local repositoryFolderPath="$1"

pushd "$repositoryFolderPath"

local submodule

while IFS= read -r submodule

do

if [ -n "$submodule" ]; then

git_changeTimestampsToLastCommit "$submodule"

fi

done <<-EOF

$(git submodule foreach -q 'echo "$path"')

EOF

local TMP_FILE

core_temporaryFiles_newFileToRemoveOnExit

local _git_changeTimestampsToLastCommit_awkScript="$TMP_FILE"

cat >"$_git_changeTimestampsToLastCommit_awkScript" <<EOF

BEGIN {

FS="\n"

RS=""

ORS=""

filesCount=0

$(git ls-files | sed 's/^\(.*\)$/files["\1"]=1;filesCount++/')

}

EOF

cat >>"$_git_changeTimestampsToLastCommit_awkScript" <<'EOF'

{

timestamp=$1

touch=""

n=2

while(n<=NF) {

if (files[$n] == 1) {

files[$n]=2

filesCount--

touch=touch " '" $n "'"

}

n++

}

if (length(touch)>0) {

# awk system() call invokes the shell which is (a) a security risk (b) slow (happens each time) and (c) requires daemons to have a shell

# Instead we pass the output to sh, which means one invocation and execution happens as-we-go

print "touch -d '" timestamp "'" touch " 2>/dev/null" " || true \n"

}

if(filesCount == 0)

{

exit 0

}

}

EOF

git whatchanged --format=format:%cI --name-only | awk -f "$_git_changeTimestampsToLastCommit_awkScript" - | env sh -s

popd

}