nix-prefetch-git: shellcheck fixes
Used shellcheck (https://github.com/koalaman/shellcheck) to validate the script and fixed any resulting escaping and ambiguity issues.
This commit is contained in:
zimbatm
parent
f145360835
commit
a42b7faaec
@ -12,6 +12,10 @@ fetchSubmodules=
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builder=
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branchName=$NIX_PREFETCH_GIT_BRANCH_NAME
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# ENV params
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out=${out:-}
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http_proxy=${http_proxy:-}
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# populated by clone_user_rev()
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fullRev=
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humanReadableRev=
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@ -64,7 +68,7 @@ for arg; do
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--builder) builder=true;;
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--help) usage; exit;;
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*)
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argi=$(($argi + 1))
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argi=$((argi++))
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case $argi in
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1) url=$arg;;
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2) rev=$arg;;
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@ -76,7 +80,7 @@ for arg; do
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else
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case $argfun in
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set_*)
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var=$(echo $argfun | sed 's,^set_,,')
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var=${argfun#set_}
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eval $var=$arg
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;;
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esac
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@ -92,8 +96,8 @@ fi
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init_remote(){
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local url=$1
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git init
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git remote add origin $url
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( [ -n "$http_proxy" ] && git config http.proxy $http_proxy ) || true
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git remote add origin "$url"
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( [ -n "$http_proxy" ] && git config http.proxy "$http_proxy" ) || true
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}
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# Return the reference of an hash if it exists on the remote repository.
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@ -116,12 +120,13 @@ url_to_name(){
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local url=$1
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local ref=$2
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# basename removes the / and .git suffixes
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local base=$(basename "$url" .git)
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local base
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base=$(basename "$url" .git)
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if [[ $ref =~ ^[a-z0-9]+$ ]]; then
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echo "$base-${ref:0:7}"
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else
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echo $base
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echo "$base"
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fi
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}
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@ -131,11 +136,11 @@ checkout_hash(){
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local ref="$2"
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if test -z "$hash"; then
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hash=$(hash_from_ref $ref)
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hash=$(hash_from_ref "$ref")
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fi
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git fetch -t ${builder:+--progress} origin || return 1
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git checkout -b $branchName $hash || return 1
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git checkout -b "$branchName" "$hash" || return 1
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}
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# Fetch only a branch/tag and checkout it.
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@ -152,13 +157,13 @@ checkout_ref(){
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fi
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if test -z "$ref"; then
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ref=$(ref_from_hash $hash)
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ref=$(ref_from_hash "$hash")
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fi
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if test -n "$ref"; then
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# --depth option is ignored on http repository.
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git fetch ${builder:+--progress} --depth 1 origin +"$ref" || return 1
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git checkout -b $branchName FETCH_HEAD || return 1
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git checkout -b "$branchName" FETCH_HEAD || return 1
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else
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return 1
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fi
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@ -171,27 +176,32 @@ init_submodules(){
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# list submodule directories and their hashes
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git submodule status |
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while read l; do
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while read -r l; do
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local hash
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local dir
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local name
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local url
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# checkout each submodule
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local hash=$(echo $l | awk '{print substr($1,2)}')
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local dir=$(echo $l | awk '{print $2}')
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local name=$(
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hash=$(echo "$l" | awk '{print substr($1,2)}')
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dir=$(echo "$l" | awk '{print $2}')
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name=$(
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git config -f .gitmodules --get-regexp submodule\..*\.path |
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sed -n "s,^\(.*\)\.path $dir\$,\\1,p")
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local url=$(git config --get ${name}.url)
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url=$(git config --get "${name}.url")
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clone "$dir" "$url" "$hash" ""
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done
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}
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clone(){
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local top=$(pwd)
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local top=$PWD
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local dir="$1"
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local url="$2"
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local hash="$3"
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local ref="$4"
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cd $dir
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cd "$dir"
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# Initialize the repository.
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init_remote "$url"
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@ -208,9 +218,8 @@ clone(){
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init_submodules
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fi
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if [ -z "$builder" -a -f .topdeps ]; then
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if tg help 2>&1 > /dev/null
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then
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if [ -z "$builder" ] && [ -f .topdeps ]; then
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if tg help &>/dev/null; then
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echo "populating TopGit branches..."
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tg remote --populate origin
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else
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@ -219,7 +228,7 @@ clone(){
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fi
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fi
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cd $top
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cd "$top"
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}
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# Remove all remote branches, remove tags not reachable from HEAD, do a full
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@ -236,14 +245,14 @@ make_deterministic_repo(){
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.git/refs/remotes/origin/HEAD .git/config
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# Remove all remote branches.
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git branch -r | while read branch; do
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git branch -r | while read -r branch; do
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git branch -rD "$branch" >&2
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done
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# Remove tags not reachable from HEAD. If we're exactly on a tag, don't
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# delete it.
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maybe_tag=$(git tag --points-at HEAD)
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git tag --contains HEAD | while read tag; do
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git tag --contains HEAD | while read -r tag; do
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if [ "$tag" != "$maybe_tag" ]; then
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git tag -d "$tag" >&2
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fi
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@ -270,7 +279,7 @@ _clone_user_rev() {
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HEAD|refs/*)
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clone "$dir" "$url" "" "$rev" 1>&2;;
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*)
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if test -z "$(echo $rev | tr -d 0123456789abcdef)"; then
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if test -z "$(echo "$rev" | tr -d 0123456789abcdef)"; then
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clone "$dir" "$url" "$rev" "" 1>&2
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else
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echo 1>&2 "Bad commit hash or bad reference."
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@ -278,9 +287,9 @@ _clone_user_rev() {
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fi;;
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esac
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fullRev="$(cd $dir && (git rev-parse $rev 2> /dev/null || git rev-parse refs/heads/$branchName) | tail -n1)"
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humanReadableRev="$(cd $dir && (git describe $fullRev 2> /dev/null || git describe --tags $fullRev 2> /dev/null || echo -- none --))"
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commitDate="$(cd $dir && git show --no-patch --pretty=%ci $fullRev)"
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fullRev="$(cd "$dir" && (git rev-parse "$rev" 2> /dev/null || git rev-parse "refs/heads/$branchName") | tail -n1)"
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humanReadableRev="$(cd "$dir" && (git describe "$fullRev" 2> /dev/null || git describe --tags "$fullRev" 2> /dev/null || echo -- none --))"
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commitDate="$(cd "$dir" && git show --no-patch --pretty=%ci "$fullRev")"
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# Allow doing additional processing before .git removal
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eval "$NIX_PREFETCH_GIT_CHECKOUT_HOOK"
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@ -288,7 +297,7 @@ _clone_user_rev() {
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echo "removing \`.git'..." >&2
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find "$dir" -name .git -print0 | xargs -0 rm -rf
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else
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find "$dir" -name .git | while read gitdir; do
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find "$dir" -name .git | while read -r gitdir; do
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make_deterministic_repo "$(readlink -f "$gitdir/..")"
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done
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fi
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@ -299,6 +308,7 @@ clone_user_rev() {
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_clone_user_rev "$@"
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else
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errfile="$(mktemp "${TMPDIR:-/tmp}/git-checkout-err-XXXXXXXX")"
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# shellcheck disable=SC2064
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trap "rm -rf \"$errfile\"" EXIT
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_clone_user_rev "$@" 2> "$errfile" || (
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status="$?"
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@ -343,7 +353,7 @@ fi
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if test -n "$builder"; then
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test -n "$out" -a -n "$url" -a -n "$rev" || usage
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mkdir -p $out
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mkdir -p "$out"
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clone_user_rev "$out" "$url" "$rev"
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else
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if test -z "$hashType"; then
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@ -365,6 +375,7 @@ else
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if test -z "$finalPath"; then
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tmpPath="$(mktemp -d "${TMPDIR:-/tmp}/git-checkout-tmp-XXXXXXXX")"
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# shellcheck disable=SC2064
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trap "rm -rf \"$tmpPath\"" EXIT
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tmpFile="$tmpPath/$(url_to_name "$url" "$rev")"
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@ -374,7 +385,7 @@ else
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clone_user_rev "$tmpFile" "$url" "$rev"
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# Compute the hash.
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hash=$(nix-hash --type $hashType --base32 $tmpFile)
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hash=$(nix-hash --type $hashType --base32 "$tmpFile")
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# Add the downloaded file to the Nix store.
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finalPath=$(nix-store --add-fixed --recursive "$hashType" "$tmpFile")
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@ -389,6 +400,6 @@ else
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print_results "$hash"
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if test -n "$PRINT_PATH"; then
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echo $finalPath
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echo "$finalPath"
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fi
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fi
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