Re: [PATCH 2/2] pathspec: don't error out on all-exclusionary pathspec patterns
On Wed, Feb 8, 2017 at 1:59 PM, Junio C Hamanowrote: > > Thanks. Even though the current code does not refer to the original > prefixlen after the added hunk, I'd prefer not to destroy it to > avoid future troubles, so I'll queue with a bit of tweak there, > perhaps like the attached. Yeah, I considered that. Along with just passing in a NULL prefix string too for that case. Not that it matters. So ack on that change, Linus
Re: [PATCH 2/2] pathspec: don't error out on all-exclusionary pathspec patterns
Linus Torvaldswrites: > @@ -546,10 +546,16 @@ void parse_pathspec(struct pathspec *pathspec, > pathspec->magic |= item[i].magic; > } > > - if (nr_exclude == n) > - die(_("There is nothing to exclude from by :(exclude) > patterns.\n" > - "Perhaps you forgot to add either ':/' or '.' ?")); > - > + /* > + * If everything is an exclude pattern, add one positive pattern > + * that matches everyting. We allocated an extra one for this. > + */ > + if (nr_exclude == n) { > + if (!(flags & PATHSPEC_PREFER_CWD)) > + prefixlen = 0; > + init_pathspec_item(item + n, 0, prefix, prefixlen, ""); > + pathspec->nr++; > + } > > if (pathspec->magic & PATHSPEC_MAXDEPTH) { > if (flags & PATHSPEC_KEEP_ORDER) Thanks. Even though the current code does not refer to the original prefixlen after the added hunk, I'd prefer not to destroy it to avoid future troubles, so I'll queue with a bit of tweak there, perhaps like the attached. Also this has an obvious fallout to the tests, whose (minimum) fix is rather trivial. Thanks. pathspec.c | 7 +++ t/t6132-pathspec-exclude.sh | 6 -- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/pathspec.c b/pathspec.c index d8f78088c8..b961f00c8c 100644 --- a/pathspec.c +++ b/pathspec.c @@ -522,7 +522,7 @@ void parse_pathspec(struct pathspec *pathspec, } pathspec->nr = n; - ALLOC_ARRAY(pathspec->items, n+1); + ALLOC_ARRAY(pathspec->items, n + 1); item = pathspec->items; prefixlen = prefix ? strlen(prefix) : 0; @@ -551,9 +551,8 @@ void parse_pathspec(struct pathspec *pathspec, * that matches everyting. We allocated an extra one for this. */ if (nr_exclude == n) { - if (!(flags & PATHSPEC_PREFER_CWD)) - prefixlen = 0; - init_pathspec_item(item + n, 0, prefix, prefixlen, ""); + int plen = (!(flags & PATHSPEC_PREFER_CWD)) ? 0 : prefixlen; + init_pathspec_item(item + n, 0, prefix, plen, ""); pathspec->nr++; } diff --git a/t/t6132-pathspec-exclude.sh b/t/t6132-pathspec-exclude.sh index d51595cf6b..9dd5cde5fc 100755 --- a/t/t6132-pathspec-exclude.sh +++ b/t/t6132-pathspec-exclude.sh @@ -25,8 +25,10 @@ EOF test_cmp expect actual ' -test_expect_success 'exclude only should error out' ' - test_must_fail git log --oneline --format=%s -- ":(exclude)sub" +test_expect_success 'exclude only no longer errors out' ' + git log --oneline --format=%s -- . ":(exclude)sub" >expect && + git log --oneline --format=%s -- ":(exclude)sub" >actual && + test_cmp expect actual ' test_expect_success 't_e_i() exclude sub' '
Re: [PATCH 2/2] pathspec: don't error out on all-exclusionary pathspec patterns
Again, as Duy pointed out this should be documented. How about something like this: diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt index f127fe9..781cde3 100644 --- a/Documentation/glossary-content.txt +++ b/Documentation/glossary-content.txt @@ -387,7 +387,9 @@ Glob magic is incompatible with literal magic. exclude;; After a path matches any non-exclude pathspec, it will be run through all exclude pathspec (magic signature: `!` or `^`). If it - matches, the path is ignored. + matches, the path is ignored. If only exclude pathspec are given, + the exclusion is applied to the result set as if invoked without any + pathspec. -- [[def_parent]]parent::
[PATCH 2/2] pathspec: don't error out on all-exclusionary pathspec patterns
From: Linus Torvalds <torva...@linux-foundation.org> Date: Tue, 7 Feb 2017 21:08:15 -0800 Subject: [PATCH 2/2] pathspec: don't error out on all-exclusionary pathspec patterns Instead of erroring out and telling the user that they should add a positive pattern that covers everything else, just _do_ that. For commands where we honor the current cwd by default (ie grep, ls-files etc), we make that default positive pathspec be the current working directory. And for commands that default to the whole project (ie diff, log, etc), the default positive pathspec is the whole project. Signed-off-by: Linus Torvalds <torva...@linux-foundation.org> --- pathspec.c | 16 +++- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/pathspec.c b/pathspec.c index ecad03406..d8f78088c 100644 --- a/pathspec.c +++ b/pathspec.c @@ -522,7 +522,7 @@ void parse_pathspec(struct pathspec *pathspec, } pathspec->nr = n; - ALLOC_ARRAY(pathspec->items, n); + ALLOC_ARRAY(pathspec->items, n+1); item = pathspec->items; prefixlen = prefix ? strlen(prefix) : 0; @@ -546,10 +546,16 @@ void parse_pathspec(struct pathspec *pathspec, pathspec->magic |= item[i].magic; } - if (nr_exclude == n) - die(_("There is nothing to exclude from by :(exclude) patterns.\n" - "Perhaps you forgot to add either ':/' or '.' ?")); - + /* +* If everything is an exclude pattern, add one positive pattern +* that matches everyting. We allocated an extra one for this. +*/ + if (nr_exclude == n) { + if (!(flags & PATHSPEC_PREFER_CWD)) + prefixlen = 0; + init_pathspec_item(item + n, 0, prefix, prefixlen, ""); + pathspec->nr++; + } if (pathspec->magic & PATHSPEC_MAXDEPTH) { if (flags & PATHSPEC_KEEP_ORDER) -- 2.12.0.rc0.1.g02555c1b2.dirty