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patch 8.1.0353: an "after" directory of a package is appended to 'rtp'

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Problem:    An "after" directory of a package is appended to 'rtp', which
            will be after the user's "after" directory. ()
Solution:   Insert the package "after" directory before any other "after"
            directory in 'rtp'. (closes #3409)
This commit is contained in:
Bram Moolenaar
2018-09-08 18:21:16 +02:00
parent d4a1aabe37
commit 99396d4cbf
3 changed files with 96 additions and 28 deletions
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102
src/ex_cmds2.c
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@@ -3691,14 +3691,17 @@ source_all_matches(char_u *pat)
add_pack_dir_to_rtp(char_u *fname)
{
char_u *p4, *p3, *p2, *p1, *p;
char_u *insp;
char_u *entry;
char_u *insp = NULL;
int c;
char_u *new_rtp;
int keep;
size_t oldlen;
size_t addlen;
size_t new_rtp_len;
char_u *afterdir = NULL;
size_t afterlen = 0;
char_u *after_insp = NULL;
char_u *ffname = NULL;
size_t fname_len;
char_u *buf = NULL;
@@ -3725,54 +3728,99 @@ add_pack_dir_to_rtp(char_u *fname)
if (ffname == NULL)
return FAIL;
/* Find "ffname" in "p_rtp", ignoring '/' vs '\' differences. */
// Find "ffname" in "p_rtp", ignoring '/' vs '\' differences.
// Also stop at the first "after" directory.
fname_len = STRLEN(ffname);
insp = p_rtp;
buf = alloc(MAXPATHL);
if (buf == NULL)
goto theend;
while (*insp != NUL)
for (entry = p_rtp; *entry != NUL; )
{
copy_option_part(&insp, buf, MAXPATHL, ",");
add_pathsep(buf);
rtp_ffname = fix_fname(buf);
if (rtp_ffname == NULL)
goto theend;
match = vim_fnamencmp(rtp_ffname, ffname, fname_len) == 0;
vim_free(rtp_ffname);
if (match)
char_u *cur_entry = entry;
copy_option_part(&entry, buf, MAXPATHL, ",");
if (insp == NULL)
{
add_pathsep(buf);
rtp_ffname = fix_fname(buf);
if (rtp_ffname == NULL)
goto theend;
match = vim_fnamencmp(rtp_ffname, ffname, fname_len) == 0;
vim_free(rtp_ffname);
if (match)
// Insert "ffname" after this entry (and comma).
insp = entry;
}
if ((p = (char_u *)strstr((char *)buf, "after")) != NULL
&& p > buf
&& vim_ispathsep(p[-1])
&& (vim_ispathsep(p[5]) || p[5] == NUL || p[5] == ','))
{
if (insp == NULL)
// Did not find "ffname" before the first "after" directory,
// insert it before this entry.
insp = cur_entry;
after_insp = cur_entry;
break;
}
}
if (*insp == NUL)
/* not found, append at the end */
if (insp == NULL)
// Both "fname" and "after" not found, append at the end.
insp = p_rtp + STRLEN(p_rtp);
else
/* append after the matching directory. */
--insp;
/* check if rtp/pack/name/start/name/after exists */
// check if rtp/pack/name/start/name/after exists
afterdir = concat_fnames(fname, (char_u *)"after", TRUE);
if (afterdir != NULL && mch_isdir(afterdir))
afterlen = STRLEN(afterdir) + 1; /* add one for comma */
afterlen = STRLEN(afterdir) + 1; // add one for comma
oldlen = STRLEN(p_rtp);
addlen = STRLEN(fname) + 1; /* add one for comma */
new_rtp = alloc((int)(oldlen + addlen + afterlen + 1));
/* add one for NUL */
addlen = STRLEN(fname) + 1; // add one for comma
new_rtp = alloc((int)(oldlen + addlen + afterlen + 1)); // add one for NUL
if (new_rtp == NULL)
goto theend;
// We now have 'rtp' parts: {keep}{keep_after}{rest}.
// Create new_rtp, first: {keep},{fname}
keep = (int)(insp - p_rtp);
mch_memmove(new_rtp, p_rtp, keep);
new_rtp[keep] = ',';
mch_memmove(new_rtp + keep + 1, fname, addlen);
if (p_rtp[keep] != NUL)
mch_memmove(new_rtp + keep + addlen, p_rtp + keep, oldlen - keep + 1);
if (afterlen > 0)
new_rtp_len = keep;
if (*insp == NUL)
new_rtp[new_rtp_len++] = ','; // add comma before
mch_memmove(new_rtp + new_rtp_len, fname, addlen - 1);
new_rtp_len += addlen - 1;
if (*insp != NUL)
new_rtp[new_rtp_len++] = ','; // add comma after
if (afterlen > 0 && after_insp != NULL)
{
int keep_after = (int)(after_insp - p_rtp);
// Add to new_rtp: {keep},{fname}{keep_after},{afterdir}
mch_memmove(new_rtp + new_rtp_len, p_rtp + keep,
keep_after - keep);
new_rtp_len += keep_after - keep;
mch_memmove(new_rtp + new_rtp_len, afterdir, afterlen - 1);
new_rtp_len += afterlen - 1;
new_rtp[new_rtp_len++] = ',';
keep = keep_after;
}
if (p_rtp[keep] != NUL)
// Append rest: {keep},{fname}{keep_after},{afterdir}{rest}
mch_memmove(new_rtp + new_rtp_len, p_rtp + keep, oldlen - keep + 1);
else
new_rtp[new_rtp_len] = NUL;
if (afterlen > 0 && after_insp == NULL)
{
// Append afterdir when "after" was not found:
// {keep},{fname}{rest},{afterdir}
STRCAT(new_rtp, ",");
STRCAT(new_rtp, afterdir);
}
set_option_value((char_u *)"rtp", 0L, new_rtp, 0);
vim_free(new_rtp);
retval = OK;