git/Documentation/git-column.txt
SZEDER Gábor c93ca46cf5 column: fix parsing of the '--nl' option
'git column's '--nl' option can be used to specify a "string to be
printed at the end of each line" (quoting the man page), but this
option and its mandatory argument has been parsed as OPT_INTEGER since
the introduction of the command in 7e29b8254f (Add column layout
skeleton and git-column, 2012-04-21).  Consequently, any non-number
argument is rejected by parse-options, and any number other than 0
leads to segfault:

  $ printf "%s\n" one two |git column --mode=plain --nl=foo
  error: option `nl' expects a numerical value
  $ printf "%s\n" one two |git column --mode=plain --nl=42
  Segmentation fault (core dumped)
  $ printf "%s\n" one two |git column --mode=plain --nl=0
  one
  two

Parse this option as OPT_STRING.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-26 14:36:27 -07:00

80 lines
2.0 KiB
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git-column(1)
=============
NAME
----
git-column - Display data in columns
SYNOPSIS
--------
[verse]
'git column' [--command=<name>] [--[raw-]mode=<mode>] [--width=<width>]
[--indent=<string>] [--nl=<string>] [--padding=<n>]
DESCRIPTION
-----------
This command formats the lines of its standard input into a table with
multiple columns. Each input line occupies one cell of the table. It
is used internally by other git commands to format output into
columns.
OPTIONS
-------
--command=<name>::
Look up layout mode using configuration variable column.<name> and
column.ui.
--mode=<mode>::
Specify layout mode. See configuration variable column.ui for option
syntax in linkgit:git-config[1].
--raw-mode=<n>::
Same as --mode but take mode encoded as a number. This is mainly used
by other commands that have already parsed layout mode.
--width=<width>::
Specify the terminal width. By default 'git column' will detect the
terminal width, or fall back to 80 if it is unable to do so.
--indent=<string>::
String to be printed at the beginning of each line.
--nl=<string>::
String to be printed at the end of each line,
including newline character.
--padding=<N>::
The number of spaces between columns. One space by default.
EXAMPLES
--------
Format data by columns:
------------
$ seq 1 24 | git column --mode=column --padding=5
1 4 7 10 13 16 19 22
2 5 8 11 14 17 20 23
3 6 9 12 15 18 21 24
------------
Format data by rows:
------------
$ seq 1 21 | git column --mode=row --padding=5
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
------------
List some tags in a table with unequal column widths:
------------
$ git tag --list 'v2.4.*' --column=row,dense
v2.4.0 v2.4.0-rc0 v2.4.0-rc1 v2.4.0-rc2 v2.4.0-rc3
v2.4.1 v2.4.10 v2.4.11 v2.4.12 v2.4.2
v2.4.3 v2.4.4 v2.4.5 v2.4.6 v2.4.7
v2.4.8 v2.4.9
------------
GIT
---
Part of the linkgit:git[1] suite