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Diffstat (limited to 'Documentation/git-check-ref-format.txt')
| -rw-r--r-- | Documentation/git-check-ref-format.txt | 64 |
1 files changed, 47 insertions, 17 deletions
diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt index f5c2e0601d..103e7b128d 100644 --- a/Documentation/git-check-ref-format.txt +++ b/Documentation/git-check-ref-format.txt @@ -8,8 +8,9 @@ git-check-ref-format - Ensures that a reference name is well formed SYNOPSIS -------- [verse] -'git check-ref-format' <refname> -'git check-ref-format' --print <refname> +'git check-ref-format' [--normalize] + [--[no-]allow-onelevel] [--refspec-pattern] + <refname> 'git check-ref-format' --branch <branchname-shorthand> DESCRIPTION @@ -18,29 +19,38 @@ Checks if a given 'refname' is acceptable, and exits with a non-zero status if it is not. A reference is used in git to specify branches and tags. A -branch head is stored under the `$GIT_DIR/refs/heads` directory, and -a tag is stored under the `$GIT_DIR/refs/tags` directory (or, if refs -are packed by `git gc`, as entries in the `$GIT_DIR/packed-refs` file). +branch head is stored in the `refs/heads` hierarchy, while +a tag is stored in the `refs/tags` hierarchy of the ref namespace +(typically in `$GIT_DIR/refs/heads` and `$GIT_DIR/refs/tags` +directories or, as entries in file `$GIT_DIR/packed-refs` +if refs are packed by `git gc`). + git imposes the following rules on how references are named: . They can include slash `/` for hierarchical (directory) grouping, but no slash-separated component can begin with a - dot `.`. + dot `.` or end with the sequence `.lock`. . They must contain at least one `/`. This enforces the presence of a category like `heads/`, `tags/` etc. but the actual names are not - restricted. + restricted. If the `--allow-onelevel` option is used, this rule + is waived. . They cannot have two consecutive dots `..` anywhere. . They cannot have ASCII control characters (i.e. bytes whose values are lower than \040, or \177 `DEL`), space, tilde `~`, - caret `{caret}`, colon `:`, question-mark `?`, asterisk `*`, - or open bracket `[` anywhere. + caret `{caret}`, or colon `:` anywhere. + +. They cannot have question-mark `?`, asterisk `{asterisk}`, or open + bracket `[` anywhere. See the `--refspec-pattern` option below for + an exception to this rule. -. They cannot end with a slash `/` nor a dot `.`. +. They cannot begin or end with a slash `/` or contain multiple + consecutive slashes (see the `--normalize` option below for an + exception to this rule) -. They cannot end with the sequence `.lock`. +. They cannot end with a dot `.`. . They cannot contain a sequence `@{`. @@ -49,7 +59,7 @@ git imposes the following rules on how references are named: These rules make it easy for shell script based tools to parse reference names, pathname expansion by the shell when a reference name is used unquoted (by mistake), and also avoids ambiguities in certain -reference name expressions (see linkgit:gitrevisions[1]): +reference name expressions (see linkgit:gitrevisions[7]): . A double-dot `..` is often used as in `ref1..ref2`, and in some contexts this notation means `{caret}ref1 ref2` (i.e. not in @@ -65,16 +75,36 @@ reference name expressions (see linkgit:gitrevisions[1]): . at-open-brace `@{` is used as a notation to access a reflog entry. -With the `--print` option, if 'refname' is acceptable, it prints the -canonicalized name of a hypothetical reference with that name. That is, -it prints 'refname' with any extra `/` characters removed. - With the `--branch` option, it expands the ``previous branch syntax'' `@{-n}`. For example, `@{-1}` is a way to refer the last branch you were on. This option should be used by porcelains to accept this syntax anywhere a branch name is expected, so they can act as if you typed the branch name. +OPTIONS +------- +--allow-onelevel:: +--no-allow-onelevel:: + Controls whether one-level refnames are accepted (i.e., + refnames that do not contain multiple `/`-separated + components). The default is `--no-allow-onelevel`. + +--refspec-pattern:: + Interpret <refname> as a reference name pattern for a refspec + (as used with remote repositories). If this option is + enabled, <refname> is allowed to contain a single `{asterisk}` + in place of a one full pathname component (e.g., + `foo/{asterisk}/bar` but not `foo/bar{asterisk}`). + +--normalize:: + Normalize 'refname' by removing any leading slash (`/`) + characters and collapsing runs of adjacent slashes between + name components into a single slash. Iff the normalized + refname is valid then print it to standard output and exit + with a status of 0. (`--print` is a deprecated way to spell + `--normalize`.) + + EXAMPLES -------- @@ -87,7 +117,7 @@ $ git check-ref-format --branch @{-1} * Determine the reference name to use for a new branch: + ------------ -$ ref=$(git check-ref-format --print "refs/heads/$newbranch") || +$ ref=$(git check-ref-format --normalize "refs/heads/$newbranch") || die "we do not like '$newbranch' as a branch name." ------------ |