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core.excludesfile clean-up

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There are inconsistencies in the way commands currently handle
the core.excludesfile configuration variable.  The problem is
the variable is too new to be noticed by anything other than
git-add and git-status.

 * git-ls-files does not notice any of the "ignore" files by
   default, as it predates the standardized set of ignore files.
   The calling scripts established the convention to use
   .git/info/exclude, .gitignore, and later core.excludesfile.

 * git-add and git-status know about it because they call
   add_excludes_from_file() directly with their own notion of
   which standard set of ignore files to use.  This is just a
   stupid duplication of code that need to be updated every time
   the definition of the standard set of ignore files is
   changed.

 * git-read-tree takes --exclude-per-directory=<gitignore>,
   not because the flexibility was needed.  Again, this was
   because the option predates the standardization of the ignore
   files.

 * git-merge-recursive uses hardcoded per-directory .gitignore
   and nothing else.  git-clean (scripted version) does not
   honor core.* because its call to underlying ls-files does not
   know about it.  git-clean in C (parked in 'pu') doesn't either.

We probably could change git-ls-files to use the standard set
when no excludes are specified on the command line and ignore
processing was asked, or something like that, but that will be a
change in semantics and might break people's scripts in a subtle
way.  I am somewhat reluctant to make such a change.

On the other hand, I think it makes perfect sense to fix
git-read-tree, git-merge-recursive and git-clean to follow the
same rule as other commands.  I do not think of a valid use case
to give an exclude-per-directory that is nonstandard to
read-tree command, outside a "negative" test in the t1004 test
script.

This patch is the first step to untangle this mess.

The next step would be to teach read-tree, merge-recursive and
clean (in C) to use setup_standard_excludes().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2007-11-14 00:05:00 -08:00
parent f5f6cb87de
commit 039bc64e88
7 changed files with 25 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
wt-status.c
View File

@ -22,7 +22,6 @@ static const char use_add_rm_msg[] =
"use \"git add/rm <file>...\" to update what will be committed";
static const char use_add_to_include_msg[] =
"use \"git add <file>...\" to include in what will be committed";
static const char *excludes_file;
static int parse_status_slot(const char *var, int offset)
{
@ -251,22 +250,16 @@ static void wt_status_print_changed(struct wt_status *s)
static void wt_status_print_untracked(struct wt_status *s)
{
struct dir_struct dir;
const char *x;
int i;
int shown_header = 0;
memset(&dir, 0, sizeof(dir));
dir.exclude_per_dir = ".gitignore";
if (!s->untracked) {
dir.show_other_directories = 1;
dir.hide_empty_directories = 1;
}
x = git_path("info/exclude");
if (file_exists(x))
add_excludes_from_file(&dir, x);
if (excludes_file && file_exists(excludes_file))
add_excludes_from_file(&dir, excludes_file);
setup_standard_excludes(&dir);
read_directory(&dir, ".", "", 0, NULL);
for(i = 0; i < dir.nr; i++) {
@ -364,11 +357,5 @@ int git_status_config(const char *k, const char *v)
int slot = parse_status_slot(k, 13);
color_parse(v, k, wt_status_colors[slot]);
}
if (!strcmp(k, "core.excludesfile")) {
if (!v)
die("core.excludesfile without value");
excludes_file = xstrdup(v);
return 0;
}
return git_default_config(k, v);
}