mirror of
https://github.com/NixOS/nix.git
synced 2025-11-09 20:16:03 +01:00
d21e3f88ec
SHA-256 is Git's next hash algorithm. The world is still basically stuck on SHA-1 with git, but shouldn't be. We can at least do our part to get ready. On the C++ implementation side, only a little bit of generalization was needed, and that was fairly straight-forward. The tests (unit and system) were actually bigger, and care was taken to make sure they were all cover both algorithms equally.
96 lines
2.4 KiB
Bash
96 lines
2.4 KiB
Bash
# shellcheck shell=bash
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source common.sh
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# Assert is set
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[[ ${hashAlgo+x} ]]
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repo="$TEST_ROOT/scratch"
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initRepo () {
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git init "$repo" --object-format="$hashAlgo"
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git -C "$repo" config user.email "you@example.com"
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git -C "$repo" config user.name "Your Name"
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}
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# Compare Nix's and git's implementation of git hashing
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try () {
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local expected="$1"
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local hash
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hash=$(nix hash path --mode git --format base16 --algo "$hashAlgo" "$TEST_ROOT/hash-path")
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[[ "$hash" == "$expected" ]]
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git -C "$repo" rm -rf hash-path || true
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cp -r "$TEST_ROOT/hash-path" "$repo/hash-path"
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git -C "$repo" add hash-path
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git -C "$repo" commit -m "x"
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git -C "$repo" status
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local hash2
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hash2=$(git -C "$repo" rev-parse HEAD:hash-path)
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[[ "$hash2" = "$expected" ]]
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}
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# Check Nix added object has matching git hash
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try2 () {
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local hashPath="$1"
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local expected="$2"
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local path
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path=$(nix store add --mode git --hash-algo "$hashAlgo" "$repo/$hashPath")
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git -C "$repo" add "$hashPath"
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git -C "$repo" commit -m "x"
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git -C "$repo" status
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local hashFromGit
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hashFromGit=$(git -C "$repo" rev-parse "HEAD:$hashPath")
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[[ "$hashFromGit" == "$expected" ]]
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local caFromNix
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caFromNix=$(nix path-info --json "$path" | jq -r ".[] | .ca")
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[[ "fixed:git:$hashAlgo:$(nix hash convert --to nix32 "$hashAlgo:$hashFromGit")" = "$caFromNix" ]]
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}
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test0 () {
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rm -rf "$TEST_ROOT/hash-path"
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echo "Hello World" > "$TEST_ROOT/hash-path"
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}
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test1 () {
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rm -rf "$TEST_ROOT/hash-path"
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mkdir "$TEST_ROOT/hash-path"
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echo "Hello World" > "$TEST_ROOT/hash-path/hello"
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echo "Run Hello World" > "$TEST_ROOT/hash-path/executable"
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chmod +x "$TEST_ROOT/hash-path/executable"
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}
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test2 () {
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rm -rf "$repo/dummy1"
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echo Hello World! > "$repo/dummy1"
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}
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test3 () {
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rm -rf "$repo/dummy2"
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mkdir -p "$repo/dummy2"
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echo Hello World! > "$repo/dummy2/hello"
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}
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test4 () {
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rm -rf "$repo/dummy3"
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mkdir -p "$repo/dummy3"
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mkdir -p "$repo/dummy3/dir"
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touch "$repo/dummy3/dir/file"
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echo Hello World! > "$repo/dummy3/dir/file"
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touch "$repo/dummy3/dir/executable"
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chmod +x "$repo/dummy3/dir/executable"
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echo Run Hello World! > "$repo/dummy3/dir/executable"
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}
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test5 () {
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rm -rf "$repo/dummy4"
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mkdir -p "$repo/dummy4"
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mkdir -p "$repo/dummy4/dir"
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touch "$repo/dummy4/dir/file"
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ln -s './hello/world.txt' "$repo/dummy4/dir/symlink"
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}
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