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* whitespace: more accurate initial-indent highlightingJ. Bruce Fields2007-12-16
| | | | | | | | | | | | Instead of highlighting the entire initial indent, highlight only the problematic spaces. In the case of an indent like ' \t \t' there may be multiple problematic ranges, so it's easiest to emit the highlighting as we go instead of trying rember disjoint ranges and do it all at the end. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* whitespace: fix initial-indent checkingJ. Bruce Fields2007-12-16
| | | | | | | | | | | | | | | | | | After this patch, "written" counts the number of bytes up to and including the most recently seen tab. This allows us to detect (and count) spaces by comparing to "i". This allows catching initial indents like '\t ' (a tab followed by 8 spaces), while previously indent-with-non-tab caught only indents that consisted entirely of spaces. This also allows fixing an indent-with-non-tab regression, so we can again detect indents like '\t \t'. Also update tests to catch these cases. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* whitespace: minor cleanupJ. Bruce Fields2007-12-16
| | | | | | | | | | | | | The variable leading_space is initially used to represent the index of the last space seen before a non-space. Then later it represents the index of the first non-indent character. It will prove simpler to replace it by a variable representing a number of bytes. Eventually it will represent the number of bytes written so far (in the stream != NULL case). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* whitespace: reorganize initial-indent checkJ. Bruce Fields2007-12-16
| | | | | | | | Reorganize to emphasize the most complicated part of the code (the tab case). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* whitespace: fix off-by-one error in non-space-in-indent checkingJ. Bruce Fields2007-12-16
| | | | | | | | | | If there were no tabs, and the last space was at position 7, then positions 0..7 had spaces, so there were 8 spaces. Update test to check exactly this case. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Use shorter error messages for whitespace problemsWincent Colaiuta2007-12-14
| | | | | | | | | | | | The initial version of the whitespace_error_string() function took the messages from builtin-apply.c rather than the shorter messages from diff.c. This commit addresses Junio's concern that these messages might be too long (now that we can emit multiple warnings per line). Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Unify whitespace checkingWincent Colaiuta2007-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | This commit unifies three separate places where whitespace checking was performed: - the whitespace checking previously done in builtin-apply.c is extracted into a function in ws.c - the equivalent logic in "git diff" is removed - the emit_line_with_ws() function is also removed because that also rechecks the whitespace, and its functionality is rolled into ws.c The new function is called check_and_emit_line() and it does two things: checks a line for whitespace errors and optionally emits it. The checking is based on lines of content rather than patch lines (in other words, the caller must strip the leading "+" or "-"); this was suggested by Junio on the mailing list to allow for a future extension to "git show" to display whitespace errors in blobs. At the same time we teach it to report all classes of whitespace errors found for a given line rather than reporting only the first found error. Signed-off-by: Wincent Colaiuta <win@wincent.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Use gitattributes to define per-path whitespace ruleJunio C Hamano2007-12-06
The `core.whitespace` configuration variable allows you to define what `diff` and `apply` should consider whitespace errors for all paths in the project (See gitlink:git-config[1]). This attribute gives you finer control per path. For example, if you have these in the .gitattributes: frotz whitespace nitfol -whitespace xyzzy whitespace=-trailing all types of whitespace problems known to git are noticed in path 'frotz' (i.e. diff shows them in diff.whitespace color, and apply warns about them), no whitespace problem is noticed in path 'nitfol', and the default types of whitespace problems except "trailing whitespace" are noticed for path 'xyzzy'. A project with mixed Python and C might want to have: *.c whitespace *.py whitespace=-indent-with-non-tab in its toplevel .gitattributes file. Signed-off-by: Junio C Hamano <gitster@pobox.com>