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![Karthik Nayak](/assets/img/avatar_default.png)
Move most of the code from 'for-each-ref' to 'ref-filter' to make it publicly available to other commands, this is to unify the code of 'tag -l', 'branch -l' and 'for-each-ref' so that they can share their implementations with each other. Add 'ref-filter' to the Makefile, this completes the movement of code from 'for-each-ref' to 'ref-filter'. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr> Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1079 lines
26 KiB
C
1079 lines
26 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "parse-options.h"
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#include "refs.h"
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#include "wildmatch.h"
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#include "commit.h"
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#include "remote.h"
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#include "color.h"
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#include "tag.h"
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#include "quote.h"
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#include "ref-filter.h"
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typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
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static struct {
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const char *name;
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cmp_type cmp_type;
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} valid_atom[] = {
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{ "refname" },
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{ "objecttype" },
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{ "objectsize", FIELD_ULONG },
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{ "objectname" },
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{ "tree" },
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{ "parent" },
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{ "numparent", FIELD_ULONG },
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{ "object" },
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{ "type" },
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{ "tag" },
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{ "author" },
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{ "authorname" },
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{ "authoremail" },
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{ "authordate", FIELD_TIME },
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{ "committer" },
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{ "committername" },
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{ "committeremail" },
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{ "committerdate", FIELD_TIME },
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{ "tagger" },
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{ "taggername" },
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{ "taggeremail" },
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{ "taggerdate", FIELD_TIME },
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{ "creator" },
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{ "creatordate", FIELD_TIME },
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{ "subject" },
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{ "body" },
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{ "contents" },
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{ "contents:subject" },
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{ "contents:body" },
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{ "contents:signature" },
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{ "upstream" },
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{ "push" },
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{ "symref" },
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{ "flag" },
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{ "HEAD" },
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{ "color" },
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};
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/*
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* An atom is a valid field atom listed above, possibly prefixed with
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* a "*" to denote deref_tag().
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*
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* We parse given format string and sort specifiers, and make a list
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* of properties that we need to extract out of objects. ref_array_item
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* structure will hold an array of values extracted that can be
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* indexed with the "atom number", which is an index into this
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* array.
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*/
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static const char **used_atom;
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static cmp_type *used_atom_type;
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static int used_atom_cnt, need_tagged, need_symref;
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static int need_color_reset_at_eol;
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/*
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* Used to parse format string and sort specifiers
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*/
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int parse_ref_filter_atom(const char *atom, const char *ep)
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{
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const char *sp;
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int i, at;
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sp = atom;
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if (*sp == '*' && sp < ep)
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sp++; /* deref */
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if (ep <= sp)
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die("malformed field name: %.*s", (int)(ep-atom), atom);
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/* Do we have the atom already used elsewhere? */
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for (i = 0; i < used_atom_cnt; i++) {
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int len = strlen(used_atom[i]);
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if (len == ep - atom && !memcmp(used_atom[i], atom, len))
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return i;
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}
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/* Is the atom a valid one? */
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for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
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int len = strlen(valid_atom[i].name);
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/*
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* If the atom name has a colon, strip it and everything after
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* it off - it specifies the format for this entry, and
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* shouldn't be used for checking against the valid_atom
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* table.
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*/
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const char *formatp = strchr(sp, ':');
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if (!formatp || ep < formatp)
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formatp = ep;
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if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len))
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break;
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}
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if (ARRAY_SIZE(valid_atom) <= i)
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die("unknown field name: %.*s", (int)(ep-atom), atom);
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/* Add it in, including the deref prefix */
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at = used_atom_cnt;
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used_atom_cnt++;
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REALLOC_ARRAY(used_atom, used_atom_cnt);
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REALLOC_ARRAY(used_atom_type, used_atom_cnt);
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used_atom[at] = xmemdupz(atom, ep - atom);
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used_atom_type[at] = valid_atom[i].cmp_type;
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if (*atom == '*')
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need_tagged = 1;
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if (!strcmp(used_atom[at], "symref"))
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need_symref = 1;
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return at;
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}
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/*
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* In a format string, find the next occurrence of %(atom).
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*/
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static const char *find_next(const char *cp)
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{
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while (*cp) {
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if (*cp == '%') {
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/*
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* %( is the start of an atom;
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* %% is a quoted per-cent.
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*/
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if (cp[1] == '(')
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return cp;
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else if (cp[1] == '%')
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cp++; /* skip over two % */
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/* otherwise this is a singleton, literal % */
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}
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cp++;
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}
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return NULL;
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}
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/*
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* Make sure the format string is well formed, and parse out
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* the used atoms.
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*/
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int verify_ref_format(const char *format)
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{
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const char *cp, *sp;
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need_color_reset_at_eol = 0;
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for (cp = format; *cp && (sp = find_next(cp)); ) {
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const char *color, *ep = strchr(sp, ')');
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int at;
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if (!ep)
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return error("malformed format string %s", sp);
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/* sp points at "%(" and ep points at the closing ")" */
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at = parse_ref_filter_atom(sp + 2, ep);
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cp = ep + 1;
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if (skip_prefix(used_atom[at], "color:", &color))
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need_color_reset_at_eol = !!strcmp(color, "reset");
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}
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return 0;
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}
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/*
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* Given an object name, read the object data and size, and return a
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* "struct object". If the object data we are returning is also borrowed
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* by the "struct object" representation, set *eaten as well---it is a
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* signal from parse_object_buffer to us not to free the buffer.
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*/
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static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten)
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{
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enum object_type type;
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void *buf = read_sha1_file(sha1, &type, sz);
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if (buf)
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*obj = parse_object_buffer(sha1, type, *sz, buf, eaten);
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else
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*obj = NULL;
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return buf;
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}
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static int grab_objectname(const char *name, const unsigned char *sha1,
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struct atom_value *v)
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{
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if (!strcmp(name, "objectname")) {
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char *s = xmalloc(41);
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strcpy(s, sha1_to_hex(sha1));
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v->s = s;
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return 1;
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}
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if (!strcmp(name, "objectname:short")) {
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v->s = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
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return 1;
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}
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return 0;
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}
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/* See grab_values */
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static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
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{
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int i;
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for (i = 0; i < used_atom_cnt; i++) {
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const char *name = used_atom[i];
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struct atom_value *v = &val[i];
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if (!!deref != (*name == '*'))
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continue;
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if (deref)
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name++;
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if (!strcmp(name, "objecttype"))
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v->s = typename(obj->type);
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else if (!strcmp(name, "objectsize")) {
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char *s = xmalloc(40);
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sprintf(s, "%lu", sz);
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v->ul = sz;
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v->s = s;
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}
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else if (deref)
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grab_objectname(name, obj->sha1, v);
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}
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}
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/* See grab_values */
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static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
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{
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int i;
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struct tag *tag = (struct tag *) obj;
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for (i = 0; i < used_atom_cnt; i++) {
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const char *name = used_atom[i];
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struct atom_value *v = &val[i];
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if (!!deref != (*name == '*'))
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continue;
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if (deref)
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name++;
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if (!strcmp(name, "tag"))
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v->s = tag->tag;
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else if (!strcmp(name, "type") && tag->tagged)
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v->s = typename(tag->tagged->type);
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else if (!strcmp(name, "object") && tag->tagged) {
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char *s = xmalloc(41);
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strcpy(s, sha1_to_hex(tag->tagged->sha1));
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v->s = s;
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}
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}
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}
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/* See grab_values */
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static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
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{
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int i;
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struct commit *commit = (struct commit *) obj;
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for (i = 0; i < used_atom_cnt; i++) {
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const char *name = used_atom[i];
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struct atom_value *v = &val[i];
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if (!!deref != (*name == '*'))
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continue;
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if (deref)
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name++;
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if (!strcmp(name, "tree")) {
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char *s = xmalloc(41);
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strcpy(s, sha1_to_hex(commit->tree->object.sha1));
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v->s = s;
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}
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if (!strcmp(name, "numparent")) {
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char *s = xmalloc(40);
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v->ul = commit_list_count(commit->parents);
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sprintf(s, "%lu", v->ul);
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v->s = s;
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}
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else if (!strcmp(name, "parent")) {
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int num = commit_list_count(commit->parents);
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int i;
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struct commit_list *parents;
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char *s = xmalloc(41 * num + 1);
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v->s = s;
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for (i = 0, parents = commit->parents;
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parents;
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parents = parents->next, i = i + 41) {
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struct commit *parent = parents->item;
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strcpy(s+i, sha1_to_hex(parent->object.sha1));
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if (parents->next)
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s[i+40] = ' ';
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}
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if (!i)
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*s = '\0';
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}
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}
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}
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static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz)
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{
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const char *eol;
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while (*buf) {
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if (!strncmp(buf, who, wholen) &&
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buf[wholen] == ' ')
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return buf + wholen + 1;
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eol = strchr(buf, '\n');
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if (!eol)
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return "";
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eol++;
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if (*eol == '\n')
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return ""; /* end of header */
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buf = eol;
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}
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return "";
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}
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static const char *copy_line(const char *buf)
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{
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const char *eol = strchrnul(buf, '\n');
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return xmemdupz(buf, eol - buf);
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}
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static const char *copy_name(const char *buf)
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{
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const char *cp;
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for (cp = buf; *cp && *cp != '\n'; cp++) {
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if (!strncmp(cp, " <", 2))
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return xmemdupz(buf, cp - buf);
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}
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return "";
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}
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static const char *copy_email(const char *buf)
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{
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const char *email = strchr(buf, '<');
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const char *eoemail;
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if (!email)
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return "";
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eoemail = strchr(email, '>');
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if (!eoemail)
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return "";
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return xmemdupz(email, eoemail + 1 - email);
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}
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static char *copy_subject(const char *buf, unsigned long len)
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{
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char *r = xmemdupz(buf, len);
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int i;
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for (i = 0; i < len; i++)
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if (r[i] == '\n')
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r[i] = ' ';
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return r;
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}
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static void grab_date(const char *buf, struct atom_value *v, const char *atomname)
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{
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const char *eoemail = strstr(buf, "> ");
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char *zone;
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unsigned long timestamp;
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long tz;
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enum date_mode date_mode = DATE_NORMAL;
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const char *formatp;
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/*
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* We got here because atomname ends in "date" or "date<something>";
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* it's not possible that <something> is not ":<format>" because
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* parse_ref_filter_atom() wouldn't have allowed it, so we can assume that no
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* ":" means no format is specified, and use the default.
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*/
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formatp = strchr(atomname, ':');
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if (formatp != NULL) {
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formatp++;
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date_mode = parse_date_format(formatp);
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}
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if (!eoemail)
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goto bad;
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timestamp = strtoul(eoemail + 2, &zone, 10);
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if (timestamp == ULONG_MAX)
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goto bad;
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tz = strtol(zone, NULL, 10);
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if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
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goto bad;
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v->s = xstrdup(show_date(timestamp, tz, date_mode));
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v->ul = timestamp;
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return;
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bad:
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v->s = "";
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v->ul = 0;
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}
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/* See grab_values */
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static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
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{
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int i;
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int wholen = strlen(who);
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const char *wholine = NULL;
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for (i = 0; i < used_atom_cnt; i++) {
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const char *name = used_atom[i];
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struct atom_value *v = &val[i];
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if (!!deref != (*name == '*'))
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continue;
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if (deref)
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name++;
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if (strncmp(who, name, wholen))
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continue;
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if (name[wholen] != 0 &&
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strcmp(name + wholen, "name") &&
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strcmp(name + wholen, "email") &&
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!starts_with(name + wholen, "date"))
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continue;
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if (!wholine)
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wholine = find_wholine(who, wholen, buf, sz);
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if (!wholine)
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return; /* no point looking for it */
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if (name[wholen] == 0)
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v->s = copy_line(wholine);
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else if (!strcmp(name + wholen, "name"))
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v->s = copy_name(wholine);
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else if (!strcmp(name + wholen, "email"))
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v->s = copy_email(wholine);
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else if (starts_with(name + wholen, "date"))
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grab_date(wholine, v, name);
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}
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/*
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* For a tag or a commit object, if "creator" or "creatordate" is
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* requested, do something special.
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*/
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if (strcmp(who, "tagger") && strcmp(who, "committer"))
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return; /* "author" for commit object is not wanted */
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if (!wholine)
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wholine = find_wholine(who, wholen, buf, sz);
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if (!wholine)
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return;
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for (i = 0; i < used_atom_cnt; i++) {
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const char *name = used_atom[i];
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struct atom_value *v = &val[i];
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if (!!deref != (*name == '*'))
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continue;
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if (deref)
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name++;
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if (starts_with(name, "creatordate"))
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grab_date(wholine, v, name);
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else if (!strcmp(name, "creator"))
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v->s = copy_line(wholine);
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}
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}
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static void find_subpos(const char *buf, unsigned long sz,
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const char **sub, unsigned long *sublen,
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const char **body, unsigned long *bodylen,
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unsigned long *nonsiglen,
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const char **sig, unsigned long *siglen)
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{
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const char *eol;
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/* skip past header until we hit empty line */
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while (*buf && *buf != '\n') {
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eol = strchrnul(buf, '\n');
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if (*eol)
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eol++;
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buf = eol;
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}
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/* skip any empty lines */
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while (*buf == '\n')
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buf++;
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|
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/* parse signature first; we might not even have a subject line */
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*sig = buf + parse_signature(buf, strlen(buf));
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*siglen = strlen(*sig);
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|
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/* subject is first non-empty line */
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*sub = buf;
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/* subject goes to first empty line */
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while (buf < *sig && *buf && *buf != '\n') {
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eol = strchrnul(buf, '\n');
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if (*eol)
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eol++;
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buf = eol;
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}
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*sublen = buf - *sub;
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/* drop trailing newline, if present */
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if (*sublen && (*sub)[*sublen - 1] == '\n')
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*sublen -= 1;
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/* skip any empty lines */
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while (*buf == '\n')
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buf++;
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*body = buf;
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*bodylen = strlen(buf);
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*nonsiglen = *sig - buf;
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}
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/* See grab_values */
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static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
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{
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int i;
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const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL;
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unsigned long sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0;
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|
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for (i = 0; i < used_atom_cnt; i++) {
|
|
const char *name = used_atom[i];
|
|
struct atom_value *v = &val[i];
|
|
if (!!deref != (*name == '*'))
|
|
continue;
|
|
if (deref)
|
|
name++;
|
|
if (strcmp(name, "subject") &&
|
|
strcmp(name, "body") &&
|
|
strcmp(name, "contents") &&
|
|
strcmp(name, "contents:subject") &&
|
|
strcmp(name, "contents:body") &&
|
|
strcmp(name, "contents:signature"))
|
|
continue;
|
|
if (!subpos)
|
|
find_subpos(buf, sz,
|
|
&subpos, &sublen,
|
|
&bodypos, &bodylen, &nonsiglen,
|
|
&sigpos, &siglen);
|
|
|
|
if (!strcmp(name, "subject"))
|
|
v->s = copy_subject(subpos, sublen);
|
|
else if (!strcmp(name, "contents:subject"))
|
|
v->s = copy_subject(subpos, sublen);
|
|
else if (!strcmp(name, "body"))
|
|
v->s = xmemdupz(bodypos, bodylen);
|
|
else if (!strcmp(name, "contents:body"))
|
|
v->s = xmemdupz(bodypos, nonsiglen);
|
|
else if (!strcmp(name, "contents:signature"))
|
|
v->s = xmemdupz(sigpos, siglen);
|
|
else if (!strcmp(name, "contents"))
|
|
v->s = xstrdup(subpos);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We want to have empty print-string for field requests
|
|
* that do not apply (e.g. "authordate" for a tag object)
|
|
*/
|
|
static void fill_missing_values(struct atom_value *val)
|
|
{
|
|
int i;
|
|
for (i = 0; i < used_atom_cnt; i++) {
|
|
struct atom_value *v = &val[i];
|
|
if (v->s == NULL)
|
|
v->s = "";
|
|
}
|
|
}
|
|
|
|
/*
|
|
* val is a list of atom_value to hold returned values. Extract
|
|
* the values for atoms in used_atom array out of (obj, buf, sz).
|
|
* when deref is false, (obj, buf, sz) is the object that is
|
|
* pointed at by the ref itself; otherwise it is the object the
|
|
* ref (which is a tag) refers to.
|
|
*/
|
|
static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
|
{
|
|
grab_common_values(val, deref, obj, buf, sz);
|
|
switch (obj->type) {
|
|
case OBJ_TAG:
|
|
grab_tag_values(val, deref, obj, buf, sz);
|
|
grab_sub_body_contents(val, deref, obj, buf, sz);
|
|
grab_person("tagger", val, deref, obj, buf, sz);
|
|
break;
|
|
case OBJ_COMMIT:
|
|
grab_commit_values(val, deref, obj, buf, sz);
|
|
grab_sub_body_contents(val, deref, obj, buf, sz);
|
|
grab_person("author", val, deref, obj, buf, sz);
|
|
grab_person("committer", val, deref, obj, buf, sz);
|
|
break;
|
|
case OBJ_TREE:
|
|
/* grab_tree_values(val, deref, obj, buf, sz); */
|
|
break;
|
|
case OBJ_BLOB:
|
|
/* grab_blob_values(val, deref, obj, buf, sz); */
|
|
break;
|
|
default:
|
|
die("Eh? Object of type %d?", obj->type);
|
|
}
|
|
}
|
|
|
|
static inline char *copy_advance(char *dst, const char *src)
|
|
{
|
|
while (*src)
|
|
*dst++ = *src++;
|
|
return dst;
|
|
}
|
|
|
|
/*
|
|
* Parse the object referred by ref, and grab needed value.
|
|
*/
|
|
static void populate_value(struct ref_array_item *ref)
|
|
{
|
|
void *buf;
|
|
struct object *obj;
|
|
int eaten, i;
|
|
unsigned long size;
|
|
const unsigned char *tagged;
|
|
|
|
ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value));
|
|
|
|
if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
|
|
unsigned char unused1[20];
|
|
ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING,
|
|
unused1, NULL);
|
|
if (!ref->symref)
|
|
ref->symref = "";
|
|
}
|
|
|
|
/* Fill in specials first */
|
|
for (i = 0; i < used_atom_cnt; i++) {
|
|
const char *name = used_atom[i];
|
|
struct atom_value *v = &ref->value[i];
|
|
int deref = 0;
|
|
const char *refname;
|
|
const char *formatp;
|
|
struct branch *branch = NULL;
|
|
|
|
if (*name == '*') {
|
|
deref = 1;
|
|
name++;
|
|
}
|
|
|
|
if (starts_with(name, "refname"))
|
|
refname = ref->refname;
|
|
else if (starts_with(name, "symref"))
|
|
refname = ref->symref ? ref->symref : "";
|
|
else if (starts_with(name, "upstream")) {
|
|
const char *branch_name;
|
|
/* only local branches may have an upstream */
|
|
if (!skip_prefix(ref->refname, "refs/heads/",
|
|
&branch_name))
|
|
continue;
|
|
branch = branch_get(branch_name);
|
|
|
|
refname = branch_get_upstream(branch, NULL);
|
|
if (!refname)
|
|
continue;
|
|
} else if (starts_with(name, "push")) {
|
|
const char *branch_name;
|
|
if (!skip_prefix(ref->refname, "refs/heads/",
|
|
&branch_name))
|
|
continue;
|
|
branch = branch_get(branch_name);
|
|
|
|
refname = branch_get_push(branch, NULL);
|
|
if (!refname)
|
|
continue;
|
|
} else if (starts_with(name, "color:")) {
|
|
char color[COLOR_MAXLEN] = "";
|
|
|
|
if (color_parse(name + 6, color) < 0)
|
|
die(_("unable to parse format"));
|
|
v->s = xstrdup(color);
|
|
continue;
|
|
} else if (!strcmp(name, "flag")) {
|
|
char buf[256], *cp = buf;
|
|
if (ref->flag & REF_ISSYMREF)
|
|
cp = copy_advance(cp, ",symref");
|
|
if (ref->flag & REF_ISPACKED)
|
|
cp = copy_advance(cp, ",packed");
|
|
if (cp == buf)
|
|
v->s = "";
|
|
else {
|
|
*cp = '\0';
|
|
v->s = xstrdup(buf + 1);
|
|
}
|
|
continue;
|
|
} else if (!deref && grab_objectname(name, ref->objectname, v)) {
|
|
continue;
|
|
} else if (!strcmp(name, "HEAD")) {
|
|
const char *head;
|
|
unsigned char sha1[20];
|
|
|
|
head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
|
|
sha1, NULL);
|
|
if (!strcmp(ref->refname, head))
|
|
v->s = "*";
|
|
else
|
|
v->s = " ";
|
|
continue;
|
|
} else
|
|
continue;
|
|
|
|
formatp = strchr(name, ':');
|
|
if (formatp) {
|
|
int num_ours, num_theirs;
|
|
|
|
formatp++;
|
|
if (!strcmp(formatp, "short"))
|
|
refname = shorten_unambiguous_ref(refname,
|
|
warn_ambiguous_refs);
|
|
else if (!strcmp(formatp, "track") &&
|
|
(starts_with(name, "upstream") ||
|
|
starts_with(name, "push"))) {
|
|
char buf[40];
|
|
|
|
if (stat_tracking_info(branch, &num_ours,
|
|
&num_theirs, NULL))
|
|
continue;
|
|
|
|
if (!num_ours && !num_theirs)
|
|
v->s = "";
|
|
else if (!num_ours) {
|
|
sprintf(buf, "[behind %d]", num_theirs);
|
|
v->s = xstrdup(buf);
|
|
} else if (!num_theirs) {
|
|
sprintf(buf, "[ahead %d]", num_ours);
|
|
v->s = xstrdup(buf);
|
|
} else {
|
|
sprintf(buf, "[ahead %d, behind %d]",
|
|
num_ours, num_theirs);
|
|
v->s = xstrdup(buf);
|
|
}
|
|
continue;
|
|
} else if (!strcmp(formatp, "trackshort") &&
|
|
(starts_with(name, "upstream") ||
|
|
starts_with(name, "push"))) {
|
|
assert(branch);
|
|
|
|
if (stat_tracking_info(branch, &num_ours,
|
|
&num_theirs, NULL))
|
|
continue;
|
|
|
|
if (!num_ours && !num_theirs)
|
|
v->s = "=";
|
|
else if (!num_ours)
|
|
v->s = "<";
|
|
else if (!num_theirs)
|
|
v->s = ">";
|
|
else
|
|
v->s = "<>";
|
|
continue;
|
|
} else
|
|
die("unknown %.*s format %s",
|
|
(int)(formatp - name), name, formatp);
|
|
}
|
|
|
|
if (!deref)
|
|
v->s = refname;
|
|
else {
|
|
int len = strlen(refname);
|
|
char *s = xmalloc(len + 4);
|
|
sprintf(s, "%s^{}", refname);
|
|
v->s = s;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < used_atom_cnt; i++) {
|
|
struct atom_value *v = &ref->value[i];
|
|
if (v->s == NULL)
|
|
goto need_obj;
|
|
}
|
|
return;
|
|
|
|
need_obj:
|
|
buf = get_obj(ref->objectname, &obj, &size, &eaten);
|
|
if (!buf)
|
|
die("missing object %s for %s",
|
|
sha1_to_hex(ref->objectname), ref->refname);
|
|
if (!obj)
|
|
die("parse_object_buffer failed on %s for %s",
|
|
sha1_to_hex(ref->objectname), ref->refname);
|
|
|
|
grab_values(ref->value, 0, obj, buf, size);
|
|
if (!eaten)
|
|
free(buf);
|
|
|
|
/*
|
|
* If there is no atom that wants to know about tagged
|
|
* object, we are done.
|
|
*/
|
|
if (!need_tagged || (obj->type != OBJ_TAG))
|
|
return;
|
|
|
|
/*
|
|
* If it is a tag object, see if we use a value that derefs
|
|
* the object, and if we do grab the object it refers to.
|
|
*/
|
|
tagged = ((struct tag *)obj)->tagged->sha1;
|
|
|
|
/*
|
|
* NEEDSWORK: This derefs tag only once, which
|
|
* is good to deal with chains of trust, but
|
|
* is not consistent with what deref_tag() does
|
|
* which peels the onion to the core.
|
|
*/
|
|
buf = get_obj(tagged, &obj, &size, &eaten);
|
|
if (!buf)
|
|
die("missing object %s for %s",
|
|
sha1_to_hex(tagged), ref->refname);
|
|
if (!obj)
|
|
die("parse_object_buffer failed on %s for %s",
|
|
sha1_to_hex(tagged), ref->refname);
|
|
grab_values(ref->value, 1, obj, buf, size);
|
|
if (!eaten)
|
|
free(buf);
|
|
}
|
|
|
|
/*
|
|
* Given a ref, return the value for the atom. This lazily gets value
|
|
* out of the object by calling populate value.
|
|
*/
|
|
static void get_ref_atom_value(struct ref_array_item *ref, int atom, struct atom_value **v)
|
|
{
|
|
if (!ref->value) {
|
|
populate_value(ref);
|
|
fill_missing_values(ref->value);
|
|
}
|
|
*v = &ref->value[atom];
|
|
}
|
|
|
|
/*
|
|
* Return 1 if the refname matches one of the patterns, otherwise 0.
|
|
* A pattern can be path prefix (e.g. a refname "refs/heads/master"
|
|
* matches a pattern "refs/heads/") or a wildcard (e.g. the same ref
|
|
* matches "refs/heads/m*",too).
|
|
*/
|
|
static int match_name_as_path(const char **pattern, const char *refname)
|
|
{
|
|
int namelen = strlen(refname);
|
|
for (; *pattern; pattern++) {
|
|
const char *p = *pattern;
|
|
int plen = strlen(p);
|
|
|
|
if ((plen <= namelen) &&
|
|
!strncmp(refname, p, plen) &&
|
|
(refname[plen] == '\0' ||
|
|
refname[plen] == '/' ||
|
|
p[plen-1] == '/'))
|
|
return 1;
|
|
if (!wildmatch(p, refname, WM_PATHNAME, NULL))
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Allocate space for a new ref_array_item and copy the objectname and flag to it */
|
|
static struct ref_array_item *new_ref_array_item(const char *refname,
|
|
const unsigned char *objectname,
|
|
int flag)
|
|
{
|
|
struct ref_array_item *ref = xcalloc(1, sizeof(struct ref_array_item));
|
|
ref->refname = xstrdup(refname);
|
|
hashcpy(ref->objectname, objectname);
|
|
ref->flag = flag;
|
|
|
|
return ref;
|
|
}
|
|
|
|
/*
|
|
* A call-back given to for_each_ref(). Filter refs and keep them for
|
|
* later object processing.
|
|
*/
|
|
int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data)
|
|
{
|
|
struct ref_filter_cbdata *ref_cbdata = cb_data;
|
|
struct ref_filter *filter = &ref_cbdata->filter;
|
|
struct ref_array_item *ref;
|
|
|
|
if (flag & REF_BAD_NAME) {
|
|
warning("ignoring ref with broken name %s", refname);
|
|
return 0;
|
|
}
|
|
|
|
if (*filter->name_patterns && !match_name_as_path(filter->name_patterns, refname))
|
|
return 0;
|
|
|
|
/*
|
|
* We do not open the object yet; sort may only need refname
|
|
* to do its job and the resulting list may yet to be pruned
|
|
* by maxcount logic.
|
|
*/
|
|
ref = new_ref_array_item(refname, oid->hash, flag);
|
|
|
|
REALLOC_ARRAY(ref_cbdata->array.items, ref_cbdata->array.nr + 1);
|
|
ref_cbdata->array.items[ref_cbdata->array.nr++] = ref;
|
|
return 0;
|
|
}
|
|
|
|
/* Free memory allocated for a ref_array_item */
|
|
static void free_array_item(struct ref_array_item *item)
|
|
{
|
|
free((char *)item->symref);
|
|
free(item->refname);
|
|
free(item);
|
|
}
|
|
|
|
/* Free all memory allocated for ref_array */
|
|
void ref_array_clear(struct ref_array *array)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < array->nr; i++)
|
|
free_array_item(array->items[i]);
|
|
free(array->items);
|
|
array->items = NULL;
|
|
array->nr = array->alloc = 0;
|
|
}
|
|
|
|
static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b)
|
|
{
|
|
struct atom_value *va, *vb;
|
|
int cmp;
|
|
cmp_type cmp_type = used_atom_type[s->atom];
|
|
|
|
get_ref_atom_value(a, s->atom, &va);
|
|
get_ref_atom_value(b, s->atom, &vb);
|
|
switch (cmp_type) {
|
|
case FIELD_STR:
|
|
cmp = strcmp(va->s, vb->s);
|
|
break;
|
|
default:
|
|
if (va->ul < vb->ul)
|
|
cmp = -1;
|
|
else if (va->ul == vb->ul)
|
|
cmp = 0;
|
|
else
|
|
cmp = 1;
|
|
break;
|
|
}
|
|
return (s->reverse) ? -cmp : cmp;
|
|
}
|
|
|
|
static struct ref_sorting *ref_sorting;
|
|
static int compare_refs(const void *a_, const void *b_)
|
|
{
|
|
struct ref_array_item *a = *((struct ref_array_item **)a_);
|
|
struct ref_array_item *b = *((struct ref_array_item **)b_);
|
|
struct ref_sorting *s;
|
|
|
|
for (s = ref_sorting; s; s = s->next) {
|
|
int cmp = cmp_ref_sorting(s, a, b);
|
|
if (cmp)
|
|
return cmp;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array)
|
|
{
|
|
ref_sorting = sorting;
|
|
qsort(array->items, array->nr, sizeof(struct ref_array_item *), compare_refs);
|
|
}
|
|
|
|
static void print_value(struct atom_value *v, int quote_style)
|
|
{
|
|
struct strbuf sb = STRBUF_INIT;
|
|
switch (quote_style) {
|
|
case QUOTE_NONE:
|
|
fputs(v->s, stdout);
|
|
break;
|
|
case QUOTE_SHELL:
|
|
sq_quote_buf(&sb, v->s);
|
|
break;
|
|
case QUOTE_PERL:
|
|
perl_quote_buf(&sb, v->s);
|
|
break;
|
|
case QUOTE_PYTHON:
|
|
python_quote_buf(&sb, v->s);
|
|
break;
|
|
case QUOTE_TCL:
|
|
tcl_quote_buf(&sb, v->s);
|
|
break;
|
|
}
|
|
if (quote_style != QUOTE_NONE) {
|
|
fputs(sb.buf, stdout);
|
|
strbuf_release(&sb);
|
|
}
|
|
}
|
|
|
|
static int hex1(char ch)
|
|
{
|
|
if ('0' <= ch && ch <= '9')
|
|
return ch - '0';
|
|
else if ('a' <= ch && ch <= 'f')
|
|
return ch - 'a' + 10;
|
|
else if ('A' <= ch && ch <= 'F')
|
|
return ch - 'A' + 10;
|
|
return -1;
|
|
}
|
|
static int hex2(const char *cp)
|
|
{
|
|
if (cp[0] && cp[1])
|
|
return (hex1(cp[0]) << 4) | hex1(cp[1]);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
static void emit(const char *cp, const char *ep)
|
|
{
|
|
while (*cp && (!ep || cp < ep)) {
|
|
if (*cp == '%') {
|
|
if (cp[1] == '%')
|
|
cp++;
|
|
else {
|
|
int ch = hex2(cp + 1);
|
|
if (0 <= ch) {
|
|
putchar(ch);
|
|
cp += 3;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
putchar(*cp);
|
|
cp++;
|
|
}
|
|
}
|
|
|
|
void show_ref_array_item(struct ref_array_item *info, const char *format, int quote_style)
|
|
{
|
|
const char *cp, *sp, *ep;
|
|
|
|
for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) {
|
|
struct atom_value *atomv;
|
|
|
|
ep = strchr(sp, ')');
|
|
if (cp < sp)
|
|
emit(cp, sp);
|
|
get_ref_atom_value(info, parse_ref_filter_atom(sp + 2, ep), &atomv);
|
|
print_value(atomv, quote_style);
|
|
}
|
|
if (*cp) {
|
|
sp = cp + strlen(cp);
|
|
emit(cp, sp);
|
|
}
|
|
if (need_color_reset_at_eol) {
|
|
struct atom_value resetv;
|
|
char color[COLOR_MAXLEN] = "";
|
|
|
|
if (color_parse("reset", color) < 0)
|
|
die("BUG: couldn't parse 'reset' as a color");
|
|
resetv.s = color;
|
|
print_value(&resetv, quote_style);
|
|
}
|
|
putchar('\n');
|
|
}
|
|
|
|
/* If no sorting option is given, use refname to sort as default */
|
|
struct ref_sorting *ref_default_sorting(void)
|
|
{
|
|
static const char cstr_name[] = "refname";
|
|
|
|
struct ref_sorting *sorting = xcalloc(1, sizeof(*sorting));
|
|
|
|
sorting->next = NULL;
|
|
sorting->atom = parse_ref_filter_atom(cstr_name, cstr_name + strlen(cstr_name));
|
|
return sorting;
|
|
}
|
|
|
|
int parse_opt_ref_sorting(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct ref_sorting **sorting_tail = opt->value;
|
|
struct ref_sorting *s;
|
|
int len;
|
|
|
|
if (!arg) /* should --no-sort void the list ? */
|
|
return -1;
|
|
|
|
s = xcalloc(1, sizeof(*s));
|
|
s->next = *sorting_tail;
|
|
*sorting_tail = s;
|
|
|
|
if (*arg == '-') {
|
|
s->reverse = 1;
|
|
arg++;
|
|
}
|
|
len = strlen(arg);
|
|
s->atom = parse_ref_filter_atom(arg, arg+len);
|
|
return 0;
|
|
}
|