5d1178b817
Turns out there's a much better API for this that doesn't have the footguns of the previous method. isLegalRefName is somewhat of a misnomer, since it's mainly used to validate user inputs that can be either references, branch names, psedorefs or tags.
117 lines
4.0 KiB
Bash
Executable File
117 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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source common.sh
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requireGit
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clearStoreIfPossible
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repo="$TEST_ROOT/git"
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rm -rf "$repo" "${repo}-tmp" "$TEST_HOME/.cache/nix"
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git init "$repo"
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git -C "$repo" config user.email "foobar@example.com"
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git -C "$repo" config user.name "Foobar"
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echo utrecht > "$repo/hello"
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git -C "$repo" add hello
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git -C "$repo" commit -m 'Bla1'
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path=$(nix eval --raw --impure --expr "(builtins.fetchGit { url = $repo; ref = \"master\"; }).outPath")
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# Test various combinations of ref names
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# (taken from the git project)
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# git help check-ref-format
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# Git imposes the following rules on how references are named:
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#
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# 1. They can include slash / for hierarchical (directory) grouping, but no slash-separated component can begin with a dot . or end with the sequence .lock.
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# 2. They must contain at least one /. This enforces the presence of a category like heads/, tags/ etc. but the actual names are not restricted. If the --allow-onelevel option is used, this rule is waived.
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# 3. They cannot have two consecutive dots .. anywhere.
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# 4. They cannot have ASCII control characters (i.e. bytes whose values are lower than \040, or \177 DEL), space, tilde ~, caret ^, or colon : anywhere.
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# 5. They cannot have question-mark ?, asterisk *, or open bracket [ anywhere. See the --refspec-pattern option below for an exception to this rule.
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# 6. They cannot begin or end with a slash / or contain multiple consecutive slashes (see the --normalize option below for an exception to this rule)
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# 7. They cannot end with a dot ..
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# 8. They cannot contain a sequence @{.
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# 9. They cannot be the single character @.
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# 10. They cannot contain a \.
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valid_ref() {
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{ set +x; printf >&2 '\n>>>>>>>>>> valid_ref %s\b <<<<<<<<<<\n' "$(printf %s "$1" | sed -n -e l)"; set -x; }
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git check-ref-format --branch "$1" >/dev/null
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git -C "$repo" branch "$1" master >/dev/null
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path1=$(nix eval --raw --impure --expr "(builtins.fetchGit { url = $repo; ref = ''$1''; }).outPath")
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[[ $path1 = "$path" ]]
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git -C "$repo" branch -D "$1" >/dev/null
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}
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invalid_ref() {
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{ set +x; printf >&2 '\n>>>>>>>>>> invalid_ref %s\b <<<<<<<<<<\n' "$(printf %s "$1" | sed -n -e l)"; set -x; }
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# special case for a sole @:
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# --branch @ will try to interpret @ as a branch reference and not fail. Thus we need --allow-onelevel
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if [ "$1" = "@" ]; then
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(! git check-ref-format --allow-onelevel "$1" >/dev/null 2>&1)
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else
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(! git check-ref-format --branch "$1" >/dev/null 2>&1)
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fi
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expect 1 nix --debug eval --raw --impure --expr "(builtins.fetchGit { url = $repo; ref = ''$1''; }).outPath" 2>&1 | grep 'invalid Git branch/tag name' >/dev/null
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}
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valid_ref 'A/b'
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valid_ref 'AaA/b'
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valid_ref 'FOO/BAR/BAZ'
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valid_ref 'foox'
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valid_ref '1337'
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valid_ref 'foo.baz'
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valid_ref 'foo/bar/baz'
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valid_ref 'foo./bar'
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valid_ref 'heads/foo@bar'
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valid_ref "$(printf 'heads/fu\303\237')"
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valid_ref 'foo-bar-baz'
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valid_ref 'branch#'
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# shellcheck disable=SC2016
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valid_ref '$1'
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valid_ref 'foo.locke'
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invalid_ref 'refs///heads/foo'
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invalid_ref 'heads/foo/'
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invalid_ref '///heads/foo'
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invalid_ref '.foo'
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invalid_ref './foo'
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invalid_ref './foo/bar'
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invalid_ref 'foo/./bar'
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invalid_ref 'foo/bar/.'
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invalid_ref 'foo bar'
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invalid_ref 'foo?bar'
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invalid_ref 'foo^bar'
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invalid_ref 'foo~bar'
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invalid_ref 'foo:bar'
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invalid_ref 'foo[bar'
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invalid_ref 'foo/bar/.'
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invalid_ref '.refs/foo'
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invalid_ref 'refs/heads/foo.'
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invalid_ref 'heads/foo..bar'
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invalid_ref 'heads/foo?bar'
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invalid_ref 'heads/foo.lock'
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invalid_ref 'heads///foo.lock'
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invalid_ref 'foo.lock/bar'
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invalid_ref 'foo.lock///bar'
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invalid_ref 'heads/v@{ation'
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invalid_ref 'heads/foo\.ar' # should fail due to \
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invalid_ref 'heads/foo\bar' # should fail due to \
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invalid_ref "$(printf 'heads/foo\t')" # should fail because it has a TAB
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invalid_ref "$(printf 'heads/foo\37')"
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invalid_ref "$(printf 'heads/foo\177')"
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invalid_ref '@'
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invalid_ref 'foo/*'
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invalid_ref '*/foo'
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invalid_ref 'foo/*/bar'
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invalid_ref '*'
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invalid_ref 'foo/*/*'
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invalid_ref '*/foo/*'
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invalid_ref '/foo'
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invalid_ref ''
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