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apply: only pass required data to skip_tree_prefix 

Currently the 'skip_tree_prefix()' function takes 'struct apply_state'
as parameter, even though it only needs the p_value from that struct.

This function is in the callchain of 'parse_git_header()', which we
want to make more generally useful in a subsequent commit.  To make
that happen we only want to pass in the required data to
'parse_git_header()', and not the whole 'struct apply_state', and thus
we want functions in the callchain of 'parse_git_header()' to only
take arguments they really need.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Gummerer 2019-07-08 17:33:03 +01:00 committed by Junio C Hamano
parent 5af40877a4
commit d6c88c4fdc
1 changed files with 9 additions and 9 deletions
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18
apply.c
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@ -1137,17 +1137,17 @@ static int gitdiff_unrecognized(struct apply_state *state,
* Skip p_value leading components from "line"; as we do not accept
* absolute paths, return NULL in that case.
*/
static const char *skip_tree_prefix(struct apply_state *state,
static const char *skip_tree_prefix(int p_value,
const char *line,
int llen)
{
int nslash;
int i;
if (!state->p_value)
if (!p_value)
return (llen && line[0] == '/') ? NULL : line;
nslash = state->p_value;
nslash = p_value;
for (i = 0; i < llen; i++) {
int ch = line[i];
if (ch == '/' && --nslash <= 0)
@ -1184,7 +1184,7 @@ static char *git_header_name(struct apply_state *state,
goto free_and_fail1;
/* strip the a/b prefix including trailing slash */
cp = skip_tree_prefix(state, first.buf, first.len);
cp = skip_tree_prefix(state->p_value, first.buf, first.len);
if (!cp)
goto free_and_fail1;
strbuf_remove(&first, 0, cp - first.buf);
@ -1201,7 +1201,7 @@ static char *git_header_name(struct apply_state *state,
if (*second == '"') {
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail1;
cp = skip_tree_prefix(state, sp.buf, sp.len);
cp = skip_tree_prefix(state->p_value, sp.buf, sp.len);
if (!cp)
goto free_and_fail1;
/* They must match, otherwise ignore */
@ -1212,7 +1212,7 @@ static char *git_header_name(struct apply_state *state,
}
/* unquoted second */
cp = skip_tree_prefix(state, second, line + llen - second);
cp = skip_tree_prefix(state->p_value, second, line + llen - second);
if (!cp)
goto free_and_fail1;
if (line + llen - cp != first.len ||
@ -1227,7 +1227,7 @@ static char *git_header_name(struct apply_state *state,
}
/* unquoted first name */
name = skip_tree_prefix(state, line, llen);
name = skip_tree_prefix(state->p_value, line, llen);
if (!name)
return NULL;
@ -1243,7 +1243,7 @@ static char *git_header_name(struct apply_state *state,
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail2;
np = skip_tree_prefix(state, sp.buf, sp.len);
np = skip_tree_prefix(state->p_value, sp.buf, sp.len);
if (!np)
goto free_and_fail2;
@ -1287,7 +1287,7 @@ static char *git_header_name(struct apply_state *state,
*/
if (!name[len + 1])
return NULL; /* no postimage name */
second = skip_tree_prefix(state, name + len + 1,
second = skip_tree_prefix(state->p_value, name + len + 1,
line_len - (len + 1));
if (!second)
return NULL;