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The synopsys text and the usage string of subcommands that read list of things from the standard input are often shown like this: git gostak [--distim] < <list-of-doshes> This is problematic in a number of ways: * The way to use these commands is more often to feed them the output from another command, not feed them from a file. * Manual pages outside Git, commands that operate on the data read from the standard input, e.g "sort", "grep", "sed", etc., are not described with such a "< redirection-from-file" in their synopsys text. Our doing so introduces inconsistency. * We do not insist on where the output should go, by saying git gostak [--distim] < <list-of-doshes> > <output> * As it is our convention to enclose placeholders inside <braket>, the redirection operator followed by a placeholder filename becomes very hard to read, both in the documentation and in the help text. Let's clean them all up, after making sure that the documentation clearly describes the modes that take information from the standard input and what kind of things are expected on the input. [jc: stole example for fmt-merge-msg from Jonathan] Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
121 lines
3.1 KiB
Plaintext
121 lines
3.1 KiB
Plaintext
git-check-attr(1)
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=================
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NAME
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----
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git-check-attr - Display gitattributes information
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SYNOPSIS
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--------
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[verse]
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'git check-attr' [-a | --all | attr...] [--] pathname...
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'git check-attr' --stdin [-z] [-a | --all | attr...]
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DESCRIPTION
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-----------
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For every pathname, this command will list if each attribute is 'unspecified',
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'set', or 'unset' as a gitattribute on that pathname.
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OPTIONS
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-------
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-a, --all::
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List all attributes that are associated with the specified
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paths. If this option is used, then 'unspecified' attributes
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will not be included in the output.
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--cached::
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Consider `.gitattributes` in the index only, ignoring the working tree.
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--stdin::
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Read pathnames from the standard input, one per line,
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instead of from the command-line.
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-z::
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The output format is modified to be machine-parseable.
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If `--stdin` is also given, input paths are separated
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with a NUL character instead of a linefeed character.
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\--::
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Interpret all preceding arguments as attributes and all following
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arguments as path names.
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If none of `--stdin`, `--all`, or `--` is used, the first argument
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will be treated as an attribute and the rest of the arguments as
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pathnames.
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OUTPUT
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------
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The output is of the form:
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<path> COLON SP <attribute> COLON SP <info> LF
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unless `-z` is in effect, in which case NUL is used as delimiter:
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<path> NUL <attribute> NUL <info> NUL
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<path> is the path of a file being queried, <attribute> is an attribute
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being queried and <info> can be either:
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'unspecified';; when the attribute is not defined for the path.
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'unset';; when the attribute is defined as false.
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'set';; when the attribute is defined as true.
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<value>;; when a value has been assigned to the attribute.
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Buffering happens as documented under the `GIT_FLUSH` option in
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linkgit:git[1]. The caller is responsible for avoiding deadlocks
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caused by overfilling an input buffer or reading from an empty output
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buffer.
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EXAMPLES
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--------
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In the examples, the following '.gitattributes' file is used:
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---------------
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*.java diff=java -crlf myAttr
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NoMyAttr.java !myAttr
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README caveat=unspecified
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---------------
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* Listing a single attribute:
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---------------
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$ git check-attr diff org/example/MyClass.java
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org/example/MyClass.java: diff: java
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---------------
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* Listing multiple attributes for a file:
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---------------
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$ git check-attr crlf diff myAttr -- org/example/MyClass.java
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org/example/MyClass.java: crlf: unset
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org/example/MyClass.java: diff: java
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org/example/MyClass.java: myAttr: set
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---------------
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* Listing all attributes for a file:
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---------------
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$ git check-attr --all -- org/example/MyClass.java
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org/example/MyClass.java: diff: java
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org/example/MyClass.java: myAttr: set
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---------------
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* Listing an attribute for multiple files:
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---------------
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$ git check-attr myAttr -- org/example/MyClass.java org/example/NoMyAttr.java
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org/example/MyClass.java: myAttr: set
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org/example/NoMyAttr.java: myAttr: unspecified
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---------------
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* Not all values are equally unambiguous:
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---------------
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$ git check-attr caveat README
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README: caveat: unspecified
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---------------
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SEE ALSO
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--------
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linkgit:gitattributes[5].
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GIT
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---
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Part of the linkgit:git[1] suite
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