fix: add a label of master

Makefile

@@ -10,7 +10,7 @@ fmt-check:
 .PHONY: fmt-check
 
 lint:
-	shellcheck $(SH_SRCFILES)
+	shellcheck $(SH_SRCFILES) -x
 .PHONY: lint
 
 test:

bin/install

@@ -5,6 +5,9 @@ set -eo pipefail
 # shellcheck disable=SC1091
 source "$(dirname "$0")/../lib/json.bash"
 
+# shellcheck disable=SC1091
+source "$(dirname "$0")/../lib/check_and_update_master.bash"
+
 trap cleanup SIGINT SIGTERM ERR
 
 cleanup() {
@@ -51,7 +54,9 @@ install_zig() {
   esac
 
   local json
-  json=$(curl --fail --silent --location https://ziglang.org/download/index.json)
+  json=$(curl --fail --progress-bar --location https://ziglang.org/download/index.json)
+
+  check_master "$version" "$platform" "$architecture" "$json"
 
   local download_url
   download_url=$(
@@ -61,10 +66,22 @@ install_zig() {
       tr -d '"'
   )
 
-  local source_path="${install_path}/zig-${platform}-${architecture}-${version}.tar.xz"
+  local expected_shasum
+  local source_path
+  local computed_shasum
+
+  expected_shasum=$(json_parse "$json" | grep "\[\"$version\",\"${architecture}-${platform}\",\"shasum\"\]" | awk '{print $2}' | tr -d '"')
+  source_path="${install_path}/zig-${platform}-${architecture}-${version}.tar.xz"
 
   echo "∗ Downloading and installing Zig..."
-  curl --fail --silent --location --create-dirs --output "$source_path" "$download_url"
+  curl --fail --progress-bar --location --create-dirs --output "$source_path" "$download_url"
+  computed_shasum="$(shasum -a 256 "$source_path" | awk '{print $1}')"
+
+  if [[ $computed_shasum != "$expected_shasum" ]]; then
+    version=$(json_parse "$json" | grep "\[\"master\",\"version\"\]" | awk '{print $2}' | tr -d '"')
+    fail "High Security Alert: The computed shasum does not match the expected shasum. Please verify the integrity of the downloaded file and try again."
+  fi
+
   tar -xf "$source_path" -C "$install_path" --strip-components=1
   mkdir -p "${install_path}/bin"
   ln -s "${install_path}/zig" "${install_path}/bin/zig"

bin/list-all

@@ -5,7 +5,7 @@ set -Eo pipefail
 # shellcheck disable=SC1091
 source "$(dirname "$0")/../lib/json.bash"
 
-json=$(curl --fail --silent --location https://ziglang.org/download/index.json)
+json=$(curl --fail --progress-bar --location https://ziglang.org/download/index.json)
 
 sort_versions() {
   sed 'h; s/[+-]/./g; s/.p\([[:digit:]]\)/.z\1/; s/$/.z/; G; s/\n/ /' |
@@ -15,7 +15,8 @@ sort_versions() {
 list_all_versions() {
   json_parse "$json" |
     sed 's/^\[\(.*\)\].*$/\1/' |
-    grep -Eo '[0-9]+.[0-9]+.[0-9]+' |
+    grep -Eo '"master"|[0-9]+\.[0-9]+\.[0-9]+' |
+    tr -d '"' |
     uniq
 }
 

lib/check_and_update_master.bash

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+source "$(dirname "$0")/../lib/json.bash"
+
+fail() {
+  echo -e "\e[31mFail:\e[m $*"
+  exit 1
+}
+
+check_master() {
+    local version="$1"
+    local platform="$2"
+    local architecture="$3"
+    local json="$4"
+
+    if [[ "$version" == "master" ]]; then
+        local tarball_path="$(find ~/.asdf/installs/zig/master -name "*.tar.xz")"
+
+        if [[ -z "$tarball_path" ]]; then
+            fail "Tarball not found in ~/.asdf/installs/zig/master"
+        fi
+
+        local computed_shasum="$(shasum -a 256 "$tarball_path" | awk '{print $1}')"
+        echo "Computed shasum: $computed_shasum"
+        local expected_shasum=$(json_parse "$json" | grep "\[\"$version\",\"${architecture}-${platform}\",\"shasum\"\]" | awk '{print $2}' | tr -d '"')
+        echo "Expected shasum: $expected_shasum"
+
+        if [[ "$computed_shasum" == "$expected_shasum" ]]; then
+            version=$(json_parse "$json" | grep "\[\"master\",\"version\"\]" | awk '{print $2}' | tr -d '"')
+            echo "Same match, new version: $version"
+
+            update_master "$version"
+        fi
+    fi
+}
+
+update_master() {
+    local version="$1"
+
+    mv ~/.asdf/installs/zig/master ~/.asdf/installs/zig/"$version"
+    sed -i '' "1a\\
+    # asdf-plugin: zig ${version}
+    "  ~/.asdf/shims/zig
+}
+
+rollback_master() {
+    local version="$1"
+    local new_version="master"
+
+    mv ~/.asdf/installs/zig/"$version" ~/.asdf/installs/zig/master
+    sed -i '' "1a\\
+    # asdf-plugin: zig ${new_version}
+    "  ~/.asdf/shims/zig
+}