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ea4780307c
The "--prefetch" option to git-fetch modifies the default refspec, including eliminating some entries entirely. When we drop an entry we free the strings in the refspec_item, but we forgot to free the matching string in the "raw" array of the refspec struct. There's no behavioral bug here (since we correctly shrink the raw array, too), but we're leaking the allocated string. Let's add in the leak-fix, and while we're at it drop "const" from the type of the raw string array. These strings are always allocated by refspec_append(), etc, and this makes the memory ownership more clear. This is all a bit more intimate with the refspec code than I'd like, and I suspect it would be better if each refspec_item held on to its own raw string, we had a single array, and we could use refspec_item_clear() to clean up everything. But that's a non-trivial refactoring, since refspec_item structs can be held outside of a "struct refspec", without having a matching raw string at all. So let's leave that for now and just fix the leak in the most immediate way. This lets us mark t5582 as leak-free. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
#ifndef REFSPEC_H
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#define REFSPEC_H
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#define TAG_REFSPEC "refs/tags/*:refs/tags/*"
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/**
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* A struct refspec_item holds the parsed interpretation of a refspec. If it
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* will force updates (starts with a '+'), force is true. If it is a pattern
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* (sides end with '*') pattern is true. If it is a negative refspec, (starts
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* with '^'), negative is true. src and dest are the two sides (including '*'
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* characters if present); if there is only one side, it is src, and dst is
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* NULL; if sides exist but are empty (i.e., the refspec either starts or ends
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* with ':'), the corresponding side is "".
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*
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* remote_find_tracking(), given a remote and a struct refspec_item with either src
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* or dst filled out, will fill out the other such that the result is in the
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* "fetch" specification for the remote (note that this evaluates patterns and
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* returns a single result).
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*/
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struct refspec_item {
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unsigned force : 1;
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unsigned pattern : 1;
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unsigned matching : 1;
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unsigned exact_sha1 : 1;
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unsigned negative : 1;
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char *src;
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char *dst;
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};
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#define REFSPEC_FETCH 1
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#define REFSPEC_PUSH 0
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#define REFSPEC_INIT_FETCH { .fetch = REFSPEC_FETCH }
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#define REFSPEC_INIT_PUSH { .fetch = REFSPEC_PUSH }
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/**
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* An array of strings can be parsed into a struct refspec using
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* parse_fetch_refspec() or parse_push_refspec().
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*/
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struct refspec {
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struct refspec_item *items;
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int alloc;
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int nr;
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char **raw;
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int raw_alloc;
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int raw_nr;
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int fetch;
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};
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int refspec_item_init(struct refspec_item *item, const char *refspec,
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int fetch);
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void refspec_item_init_or_die(struct refspec_item *item, const char *refspec,
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int fetch);
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void refspec_item_clear(struct refspec_item *item);
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void refspec_init(struct refspec *rs, int fetch);
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void refspec_append(struct refspec *rs, const char *refspec);
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__attribute__((format (printf,2,3)))
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void refspec_appendf(struct refspec *rs, const char *fmt, ...);
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void refspec_appendn(struct refspec *rs, const char **refspecs, int nr);
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void refspec_clear(struct refspec *rs);
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int valid_fetch_refspec(const char *refspec);
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int valid_remote_name(const char *name);
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struct strvec;
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/*
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* Determine what <prefix> values to pass to the peer in ref-prefix lines
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* (see linkgit:gitprotocol-v2[5]).
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*/
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void refspec_ref_prefixes(const struct refspec *rs,
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struct strvec *ref_prefixes);
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#endif /* REFSPEC_H */
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