mirror of
https://github.com/git/git
synced 2024-08-25 10:45:59 +00:00
Merge for-each-ref to sync gitweb fully with 'next'
This commit is contained in:
commit
9ee93dceb5
1
.gitignore
vendored
1
.gitignore
vendored
|
@ -37,6 +37,7 @@ git-fetch
|
|||
git-fetch-pack
|
||||
git-findtags
|
||||
git-fmt-merge-msg
|
||||
git-for-each-ref
|
||||
git-format-patch
|
||||
git-fsck-objects
|
||||
git-get-tar-commit-id
|
||||
|
|
181
Documentation/git-for-each-ref.txt
Normal file
181
Documentation/git-for-each-ref.txt
Normal file
|
@ -0,0 +1,181 @@
|
|||
git-for-each-ref(1)
|
||||
===================
|
||||
|
||||
NAME
|
||||
----
|
||||
git-for-each-ref - Output information on each ref
|
||||
|
||||
SYNOPSIS
|
||||
--------
|
||||
'git-for-each-ref' [--count=<count>]* [--shell|--perl|--python] [--sort=<key>]* [--format=<format>] [<pattern>]
|
||||
|
||||
DESCRIPTION
|
||||
-----------
|
||||
|
||||
Iterate over all refs that match `<pattern>` and show them
|
||||
according to the given `<format>`, after sorting them according
|
||||
to the given set of `<key>`s. If `<max>` is given, stop after
|
||||
showing that many refs. The interporated values in `<format>`
|
||||
can optionally be quoted as string literals in the specified
|
||||
host language allowing their direct evaluation in that language.
|
||||
|
||||
OPTIONS
|
||||
-------
|
||||
<count>::
|
||||
By default the command shows all refs that match
|
||||
`<pattern>`. This option makes it stop after showing
|
||||
that many refs.
|
||||
|
||||
<key>::
|
||||
A field name to sort on. Prefix `-` to sort in
|
||||
descending order of the value. When unspecified,
|
||||
`refname` is used. More than one sort keys can be
|
||||
given.
|
||||
|
||||
<format>::
|
||||
A string that interpolates `%(fieldname)` from the
|
||||
object pointed at by a ref being shown. If `fieldname`
|
||||
is prefixed with an asterisk (`*`) and the ref points
|
||||
at a tag object, the value for the field in the object
|
||||
tag refers is used. When unspecified, defaults to
|
||||
`%(refname)`.
|
||||
|
||||
<pattern>::
|
||||
If given, the name of the ref is matched against this
|
||||
using fnmatch(3). Refs that do not match the pattern
|
||||
are not shown.
|
||||
|
||||
--shell, --perl, --python::
|
||||
If given, strings that substitute `%(fieldname)`
|
||||
placeholders are quoted as string literals suitable for
|
||||
the specified host language. This is meant to produce
|
||||
a scriptlet that can directly be `eval`ed.
|
||||
|
||||
|
||||
FIELD NAMES
|
||||
-----------
|
||||
|
||||
Various values from structured fields in referenced objects can
|
||||
be used to interpolate into the resulting output, or as sort
|
||||
keys.
|
||||
|
||||
For all objects, the following names can be used:
|
||||
|
||||
refname::
|
||||
The name of the ref (the part after $GIT_DIR/refs/).
|
||||
|
||||
objecttype::
|
||||
The type of the object (`blob`, `tree`, `commit`, `tag`).
|
||||
|
||||
objectsize::
|
||||
The size of the object (the same as `git-cat-file -s` reports).
|
||||
|
||||
objectname::
|
||||
The object name (aka SHA-1).
|
||||
|
||||
In addition to the above, for commit and tag objects, the header
|
||||
field names (`tree`, `parent`, `object`, `type`, and `tag`) can
|
||||
be used to specify the value in the header field.
|
||||
|
||||
Fields that have name-email-date tuple as its value (`author`,
|
||||
`committer`, and `tagger`) can be suffixed with `name`, `email`,
|
||||
and `date` to extract the named component.
|
||||
|
||||
The first line of the message in a commit and tag object is
|
||||
`subject`, the remaining lines are `body`. The whole message
|
||||
is `contents`.
|
||||
|
||||
For sorting purposes, fields with numeric values sort in numeric
|
||||
order (`objectsize`, `authordate`, `committerdate`, `taggerdate`).
|
||||
All other fields are used to sort in their byte-value order.
|
||||
|
||||
In any case, a field name that refers to a field inapplicable to
|
||||
the object referred by the ref does not cause an error. It
|
||||
returns an empty string instead.
|
||||
|
||||
|
||||
EXAMPLES
|
||||
--------
|
||||
|
||||
An example directly producing formatted text. Show the most recent
|
||||
3 tagged commits::
|
||||
|
||||
------------
|
||||
#!/bin/sh
|
||||
|
||||
git-for-each-ref --count=3 --sort='-*authordate' \
|
||||
--format='From: %(*authorname) %(*authoremail)
|
||||
Subject: %(*subject)
|
||||
Date: %(*authordate)
|
||||
Ref: %(*refname)
|
||||
|
||||
%(*body)
|
||||
' 'refs/tags'
|
||||
------------
|
||||
|
||||
|
||||
A simple example showing the use of shell eval on the output,
|
||||
demonstrating the use of --shell. List the prefixes of all heads::
|
||||
------------
|
||||
#!/bin/sh
|
||||
|
||||
git-for-each-ref --shell --format="ref=%(refname)" refs/heads | \
|
||||
while read entry
|
||||
do
|
||||
eval "$entry"
|
||||
echo `dirname $ref`
|
||||
done
|
||||
------------
|
||||
|
||||
|
||||
A bit more elaborate report on tags, demonstrating that the format
|
||||
may be an entire script::
|
||||
------------
|
||||
#!/bin/sh
|
||||
|
||||
fmt='
|
||||
r=%(refname)
|
||||
t=%(*objecttype)
|
||||
T=${r#refs/tags/}
|
||||
|
||||
o=%(*objectname)
|
||||
n=%(*authorname)
|
||||
e=%(*authoremail)
|
||||
s=%(*subject)
|
||||
d=%(*authordate)
|
||||
b=%(*body)
|
||||
|
||||
kind=Tag
|
||||
if test "z$t" = z
|
||||
then
|
||||
# could be a lightweight tag
|
||||
t=%(objecttype)
|
||||
kind="Lightweight tag"
|
||||
o=%(objectname)
|
||||
n=%(authorname)
|
||||
e=%(authoremail)
|
||||
s=%(subject)
|
||||
d=%(authordate)
|
||||
b=%(body)
|
||||
fi
|
||||
echo "$kind $T points at a $t object $o"
|
||||
if test "z$t" = zcommit
|
||||
then
|
||||
echo "The commit was authored by $n $e
|
||||
at $d, and titled
|
||||
|
||||
$s
|
||||
|
||||
Its message reads as:
|
||||
"
|
||||
echo "$b" | sed -e "s/^/ /"
|
||||
echo
|
||||
fi
|
||||
'
|
||||
|
||||
eval=`git-for-each-ref --shell --format="$fmt" \
|
||||
--sort='*objecttype' \
|
||||
--sort=-taggerdate \
|
||||
refs/tags`
|
||||
eval "$eval"
|
||||
------------
|
1
Makefile
1
Makefile
|
@ -281,6 +281,7 @@ BUILTIN_OBJS = \
|
|||
builtin-diff-stages.o \
|
||||
builtin-diff-tree.o \
|
||||
builtin-fmt-merge-msg.o \
|
||||
builtin-for-each-ref.o \
|
||||
builtin-grep.o \
|
||||
builtin-init-db.o \
|
||||
builtin-log.o \
|
||||
|
|
874
builtin-for-each-ref.c
Normal file
874
builtin-for-each-ref.c
Normal file
|
@ -0,0 +1,874 @@
|
|||
#include "cache.h"
|
||||
#include "refs.h"
|
||||
#include "object.h"
|
||||
#include "tag.h"
|
||||
#include "commit.h"
|
||||
#include "tree.h"
|
||||
#include "blob.h"
|
||||
#include "quote.h"
|
||||
#include <fnmatch.h>
|
||||
|
||||
/* Quoting styles */
|
||||
#define QUOTE_NONE 0
|
||||
#define QUOTE_SHELL 1
|
||||
#define QUOTE_PERL 2
|
||||
#define QUOTE_PYTHON 3
|
||||
|
||||
typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
|
||||
|
||||
struct atom_value {
|
||||
const char *s;
|
||||
unsigned long ul; /* used for sorting when not FIELD_STR */
|
||||
};
|
||||
|
||||
struct ref_sort {
|
||||
struct ref_sort *next;
|
||||
int atom; /* index into used_atom array */
|
||||
unsigned reverse : 1;
|
||||
};
|
||||
|
||||
struct refinfo {
|
||||
char *refname;
|
||||
unsigned char objectname[20];
|
||||
struct atom_value *value;
|
||||
};
|
||||
|
||||
static struct {
|
||||
const char *name;
|
||||
cmp_type cmp_type;
|
||||
} valid_atom[] = {
|
||||
{ "refname" },
|
||||
{ "objecttype" },
|
||||
{ "objectsize", FIELD_ULONG },
|
||||
{ "objectname" },
|
||||
{ "tree" },
|
||||
{ "parent" }, /* NEEDSWORK: how to address 2nd and later parents? */
|
||||
{ "numparent", FIELD_ULONG },
|
||||
{ "object" },
|
||||
{ "type" },
|
||||
{ "tag" },
|
||||
{ "author" },
|
||||
{ "authorname" },
|
||||
{ "authoremail" },
|
||||
{ "authordate", FIELD_TIME },
|
||||
{ "committer" },
|
||||
{ "committername" },
|
||||
{ "committeremail" },
|
||||
{ "committerdate", FIELD_TIME },
|
||||
{ "tagger" },
|
||||
{ "taggername" },
|
||||
{ "taggeremail" },
|
||||
{ "taggerdate", FIELD_TIME },
|
||||
{ "subject" },
|
||||
{ "body" },
|
||||
{ "contents" },
|
||||
};
|
||||
|
||||
/*
|
||||
* An atom is a valid field atom listed above, possibly prefixed with
|
||||
* a "*" to denote deref_tag().
|
||||
*
|
||||
* We parse given format string and sort specifiers, and make a list
|
||||
* of properties that we need to extract out of objects. refinfo
|
||||
* structure will hold an array of values extracted that can be
|
||||
* indexed with the "atom number", which is an index into this
|
||||
* array.
|
||||
*/
|
||||
static const char **used_atom;
|
||||
static cmp_type *used_atom_type;
|
||||
static int used_atom_cnt, sort_atom_limit, need_tagged;
|
||||
|
||||
/*
|
||||
* Used to parse format string and sort specifiers
|
||||
*/
|
||||
static int parse_atom(const char *atom, const char *ep)
|
||||
{
|
||||
const char *sp;
|
||||
char *n;
|
||||
int i, at;
|
||||
|
||||
sp = atom;
|
||||
if (*sp == '*' && sp < ep)
|
||||
sp++; /* deref */
|
||||
if (ep <= sp)
|
||||
die("malformed field name: %.*s", (int)(ep-atom), atom);
|
||||
|
||||
/* Do we have the atom already used elsewhere? */
|
||||
for (i = 0; i < used_atom_cnt; i++) {
|
||||
int len = strlen(used_atom[i]);
|
||||
if (len == ep - atom && !memcmp(used_atom[i], atom, len))
|
||||
return i;
|
||||
}
|
||||
|
||||
/* Is the atom a valid one? */
|
||||
for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
|
||||
int len = strlen(valid_atom[i].name);
|
||||
if (len == ep - sp && !memcmp(valid_atom[i].name, sp, len))
|
||||
break;
|
||||
}
|
||||
|
||||
if (ARRAY_SIZE(valid_atom) <= i)
|
||||
die("unknown field name: %.*s", (int)(ep-atom), atom);
|
||||
|
||||
/* Add it in, including the deref prefix */
|
||||
at = used_atom_cnt;
|
||||
used_atom_cnt++;
|
||||
used_atom = xrealloc(used_atom,
|
||||
(sizeof *used_atom) * used_atom_cnt);
|
||||
used_atom_type = xrealloc(used_atom_type,
|
||||
(sizeof(*used_atom_type) * used_atom_cnt));
|
||||
n = xmalloc(ep - atom + 1);
|
||||
memcpy(n, atom, ep - atom);
|
||||
n[ep-atom] = 0;
|
||||
used_atom[at] = n;
|
||||
used_atom_type[at] = valid_atom[i].cmp_type;
|
||||
return at;
|
||||
}
|
||||
|
||||
/*
|
||||
* In a format string, find the next occurrence of %(atom).
|
||||
*/
|
||||
static const char *find_next(const char *cp)
|
||||
{
|
||||
while (*cp) {
|
||||
if (*cp == '%') {
|
||||
/* %( is the start of an atom;
|
||||
* %% is a quoteed per-cent.
|
||||
*/
|
||||
if (cp[1] == '(')
|
||||
return cp;
|
||||
else if (cp[1] == '%')
|
||||
cp++; /* skip over two % */
|
||||
/* otherwise this is a singleton, literal % */
|
||||
}
|
||||
cp++;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Make sure the format string is well formed, and parse out
|
||||
* the used atoms.
|
||||
*/
|
||||
static void verify_format(const char *format)
|
||||
{
|
||||
const char *cp, *sp;
|
||||
for (cp = format; *cp && (sp = find_next(cp)); ) {
|
||||
const char *ep = strchr(sp, ')');
|
||||
if (!ep)
|
||||
die("malformatted format string %s", sp);
|
||||
/* sp points at "%(" and ep points at the closing ")" */
|
||||
parse_atom(sp + 2, ep);
|
||||
cp = ep + 1;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Given an object name, read the object data and size, and return a
|
||||
* "struct object". If the object data we are returning is also borrowed
|
||||
* by the "struct object" representation, set *eaten as well---it is a
|
||||
* signal from parse_object_buffer to us not to free the buffer.
|
||||
*/
|
||||
static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten)
|
||||
{
|
||||
char type[20];
|
||||
void *buf = read_sha1_file(sha1, type, sz);
|
||||
|
||||
if (buf)
|
||||
*obj = parse_object_buffer(sha1, type, *sz, buf, eaten);
|
||||
else
|
||||
*obj = NULL;
|
||||
return buf;
|
||||
}
|
||||
|
||||
/* See grab_values */
|
||||
static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
||||
{
|
||||
int i;
|
||||
|
||||
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, "objecttype"))
|
||||
v->s = type_names[obj->type];
|
||||
else if (!strcmp(name, "objectsize")) {
|
||||
char *s = xmalloc(40);
|
||||
sprintf(s, "%lu", sz);
|
||||
v->ul = sz;
|
||||
v->s = s;
|
||||
}
|
||||
else if (!strcmp(name, "objectname")) {
|
||||
char *s = xmalloc(41);
|
||||
strcpy(s, sha1_to_hex(obj->sha1));
|
||||
v->s = s;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* See grab_values */
|
||||
static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
||||
{
|
||||
int i;
|
||||
struct tag *tag = (struct tag *) obj;
|
||||
|
||||
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, "tag"))
|
||||
v->s = tag->tag;
|
||||
}
|
||||
}
|
||||
|
||||
static int num_parents(struct commit *commit)
|
||||
{
|
||||
struct commit_list *parents;
|
||||
int i;
|
||||
|
||||
for (i = 0, parents = commit->parents;
|
||||
parents;
|
||||
parents = parents->next)
|
||||
i++;
|
||||
return i;
|
||||
}
|
||||
|
||||
/* See grab_values */
|
||||
static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
||||
{
|
||||
int i;
|
||||
struct commit *commit = (struct commit *) obj;
|
||||
|
||||
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, "tree")) {
|
||||
char *s = xmalloc(41);
|
||||
strcpy(s, sha1_to_hex(commit->tree->object.sha1));
|
||||
v->s = s;
|
||||
}
|
||||
if (!strcmp(name, "numparent")) {
|
||||
char *s = xmalloc(40);
|
||||
sprintf(s, "%lu", v->ul);
|
||||
v->s = s;
|
||||
v->ul = num_parents(commit);
|
||||
}
|
||||
else if (!strcmp(name, "parent")) {
|
||||
int num = num_parents(commit);
|
||||
int i;
|
||||
struct commit_list *parents;
|
||||
char *s = xmalloc(42 * num);
|
||||
v->s = s;
|
||||
for (i = 0, parents = commit->parents;
|
||||
parents;
|
||||
parents = parents->next, i = i + 42) {
|
||||
struct commit *parent = parents->item;
|
||||
strcpy(s+i, sha1_to_hex(parent->object.sha1));
|
||||
if (parents->next)
|
||||
s[i+40] = ' ';
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz)
|
||||
{
|
||||
const char *eol;
|
||||
while (*buf) {
|
||||
if (!strncmp(buf, who, wholen) &&
|
||||
buf[wholen] == ' ')
|
||||
return buf + wholen + 1;
|
||||
eol = strchr(buf, '\n');
|
||||
if (!eol)
|
||||
return "";
|
||||
eol++;
|
||||
if (eol[1] == '\n')
|
||||
return ""; /* end of header */
|
||||
buf = eol;
|
||||
}
|
||||
return "";
|
||||
}
|
||||
|
||||
static char *copy_line(const char *buf)
|
||||
{
|
||||
const char *eol = strchr(buf, '\n');
|
||||
char *line;
|
||||
int len;
|
||||
if (!eol)
|
||||
return "";
|
||||
len = eol - buf;
|
||||
line = xmalloc(len + 1);
|
||||
memcpy(line, buf, len);
|
||||
line[len] = 0;
|
||||
return line;
|
||||
}
|
||||
|
||||
static char *copy_name(const char *buf)
|
||||
{
|
||||
const char *eol = strchr(buf, '\n');
|
||||
const char *eoname = strstr(buf, " <");
|
||||
char *line;
|
||||
int len;
|
||||
if (!(eoname && eol && eoname < eol))
|
||||
return "";
|
||||
len = eoname - buf;
|
||||
line = xmalloc(len + 1);
|
||||
memcpy(line, buf, len);
|
||||
line[len] = 0;
|
||||
return line;
|
||||
}
|
||||
|
||||
static char *copy_email(const char *buf)
|
||||
{
|
||||
const char *email = strchr(buf, '<');
|
||||
const char *eoemail = strchr(email, '>');
|
||||
char *line;
|
||||
int len;
|
||||
if (!email || !eoemail)
|
||||
return "";
|
||||
eoemail++;
|
||||
len = eoemail - email;
|
||||
line = xmalloc(len + 1);
|
||||
memcpy(line, email, len);
|
||||
line[len] = 0;
|
||||
return line;
|
||||
}
|
||||
|
||||
static void grab_date(const char *buf, struct atom_value *v)
|
||||
{
|
||||
const char *eoemail = strstr(buf, "> ");
|
||||
char *zone;
|
||||
unsigned long timestamp;
|
||||
long tz;
|
||||
|
||||
if (!eoemail)
|
||||
goto bad;
|
||||
timestamp = strtoul(eoemail + 2, &zone, 10);
|
||||
if (timestamp == ULONG_MAX)
|
||||
goto bad;
|
||||
tz = strtol(zone, NULL, 10);
|
||||
if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
|
||||
goto bad;
|
||||
v->s = xstrdup(show_date(timestamp, tz, 0));
|
||||
v->ul = timestamp;
|
||||
return;
|
||||
bad:
|
||||
v->s = "";
|
||||
v->ul = 0;
|
||||
}
|
||||
|
||||
/* See grab_values */
|
||||
static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
||||
{
|
||||
int i;
|
||||
int wholen = strlen(who);
|
||||
const char *wholine = NULL;
|
||||
|
||||
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 (strncmp(who, name, wholen))
|
||||
continue;
|
||||
if (name[wholen] != 0 &&
|
||||
strcmp(name + wholen, "name") &&
|
||||
strcmp(name + wholen, "email") &&
|
||||
strcmp(name + wholen, "date"))
|
||||
continue;
|
||||
if (!wholine)
|
||||
wholine = find_wholine(who, wholen, buf, sz);
|
||||
if (!wholine)
|
||||
return; /* no point looking for it */
|
||||
if (name[wholen] == 0)
|
||||
v->s = copy_line(wholine);
|
||||
else if (!strcmp(name + wholen, "name"))
|
||||
v->s = copy_name(wholine);
|
||||
else if (!strcmp(name + wholen, "email"))
|
||||
v->s = copy_email(wholine);
|
||||
else if (!strcmp(name + wholen, "date"))
|
||||
grab_date(wholine, v);
|
||||
}
|
||||
}
|
||||
|
||||
static void find_subpos(const char *buf, unsigned long sz, const char **sub, const char **body)
|
||||
{
|
||||
while (*buf) {
|
||||
const char *eol = strchr(buf, '\n');
|
||||
if (!eol)
|
||||
return;
|
||||
if (eol[1] == '\n') {
|
||||
buf = eol + 1;
|
||||
break; /* found end of header */
|
||||
}
|
||||
buf = eol + 1;
|
||||
}
|
||||
while (*buf == '\n')
|
||||
buf++;
|
||||
if (!*buf)
|
||||
return;
|
||||
*sub = buf; /* first non-empty line */
|
||||
buf = strchr(buf, '\n');
|
||||
if (!buf)
|
||||
return; /* no body */
|
||||
while (*buf == '\n')
|
||||
buf++; /* skip blank between subject and body */
|
||||
*body = buf;
|
||||
}
|
||||
|
||||
/* See grab_values */
|
||||
static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
|
||||
{
|
||||
int i;
|
||||
const char *subpos = NULL, *bodypos = NULL;
|
||||
|
||||
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"))
|
||||
continue;
|
||||
if (!subpos)
|
||||
find_subpos(buf, sz, &subpos, &bodypos);
|
||||
if (!subpos)
|
||||
return;
|
||||
|
||||
if (!strcmp(name, "subject"))
|
||||
v->s = copy_line(subpos);
|
||||
else if (!strcmp(name, "body"))
|
||||
v->s = bodypos;
|
||||
else if (!strcmp(name, "contents"))
|
||||
v->s = 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);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Parse the object referred by ref, and grab needed value.
|
||||
*/
|
||||
static void populate_value(struct refinfo *ref)
|
||||
{
|
||||
void *buf;
|
||||
struct object *obj;
|
||||
int eaten, i;
|
||||
unsigned long size;
|
||||
const unsigned char *tagged;
|
||||
|
||||
ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt);
|
||||
|
||||
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);
|
||||
|
||||
/* 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];
|
||||
if (!strcmp(name, "refname"))
|
||||
v->s = ref->refname;
|
||||
else if (!strcmp(name, "*refname")) {
|
||||
int len = strlen(ref->refname);
|
||||
char *s = xmalloc(len + 4);
|
||||
sprintf(s, "%s^{}", ref->refname);
|
||||
v->s = s;
|
||||
}
|
||||
}
|
||||
|
||||
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_value(struct refinfo *ref, int atom, struct atom_value **v)
|
||||
{
|
||||
if (!ref->value) {
|
||||
populate_value(ref);
|
||||
fill_missing_values(ref->value);
|
||||
}
|
||||
*v = &ref->value[atom];
|
||||
}
|
||||
|
||||
static struct refinfo **grab_array;
|
||||
static const char **grab_pattern;
|
||||
static int *grab_cnt;
|
||||
|
||||
/*
|
||||
* A call-back given to for_each_ref(). It is unfortunate that we
|
||||
* need to use global variables to pass extra information to this
|
||||
* function.
|
||||
*/
|
||||
static int grab_single_ref(const char *refname, const unsigned char *sha1)
|
||||
{
|
||||
struct refinfo *ref;
|
||||
int cnt;
|
||||
|
||||
if (*grab_pattern) {
|
||||
const char **pattern;
|
||||
int namelen = strlen(refname);
|
||||
for (pattern = grab_pattern; *pattern; pattern++) {
|
||||
const char *p = *pattern;
|
||||
int plen = strlen(p);
|
||||
|
||||
if ((plen <= namelen) &&
|
||||
!strncmp(refname, p, plen) &&
|
||||
(refname[plen] == '\0' ||
|
||||
refname[plen] == '/'))
|
||||
break;
|
||||
if (!fnmatch(p, refname, FNM_PATHNAME))
|
||||
break;
|
||||
}
|
||||
if (!*pattern)
|
||||
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 = xcalloc(1, sizeof(*ref));
|
||||
ref->refname = xstrdup(refname);
|
||||
hashcpy(ref->objectname, sha1);
|
||||
|
||||
cnt = *grab_cnt;
|
||||
grab_array = xrealloc(grab_array, sizeof(*grab_array) * (cnt + 1));
|
||||
grab_array[cnt++] = ref;
|
||||
*grab_cnt = cnt;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct refinfo **grab_refs(const char **pattern, int *cnt)
|
||||
{
|
||||
/* Sheesh, we really should make for-each-ref to take
|
||||
* callback data.
|
||||
*/
|
||||
*cnt = 0;
|
||||
grab_pattern = pattern;
|
||||
grab_cnt = cnt;
|
||||
for_each_ref(grab_single_ref);
|
||||
return grab_array;
|
||||
}
|
||||
|
||||
static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b)
|
||||
{
|
||||
struct atom_value *va, *vb;
|
||||
int cmp;
|
||||
cmp_type cmp_type = used_atom_type[s->atom];
|
||||
|
||||
get_value(a, s->atom, &va);
|
||||
get_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_sort *ref_sort;
|
||||
static int compare_refs(const void *a_, const void *b_)
|
||||
{
|
||||
struct refinfo *a = *((struct refinfo **)a_);
|
||||
struct refinfo *b = *((struct refinfo **)b_);
|
||||
struct ref_sort *s;
|
||||
|
||||
for (s = ref_sort; s; s = s->next) {
|
||||
int cmp = cmp_ref_sort(s, a, b);
|
||||
if (cmp)
|
||||
return cmp;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs)
|
||||
{
|
||||
ref_sort = sort;
|
||||
qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs);
|
||||
}
|
||||
|
||||
static void print_value(struct refinfo *ref, int atom, int quote_style)
|
||||
{
|
||||
struct atom_value *v;
|
||||
get_value(ref, atom, &v);
|
||||
switch (quote_style) {
|
||||
case QUOTE_NONE:
|
||||
fputs(v->s, stdout);
|
||||
break;
|
||||
case QUOTE_SHELL:
|
||||
sq_quote_print(stdout, v->s);
|
||||
break;
|
||||
case QUOTE_PERL:
|
||||
perl_quote_print(stdout, v->s);
|
||||
break;
|
||||
case QUOTE_PYTHON:
|
||||
python_quote_print(stdout, v->s);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
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++;
|
||||
}
|
||||
}
|
||||
|
||||
static void show_ref(struct refinfo *info, const char *format, int quote_style)
|
||||
{
|
||||
const char *cp, *sp, *ep;
|
||||
|
||||
for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) {
|
||||
ep = strchr(sp, ')');
|
||||
if (cp < sp)
|
||||
emit(cp, sp);
|
||||
print_value(info, parse_atom(sp + 2, ep), quote_style);
|
||||
}
|
||||
if (*cp) {
|
||||
sp = cp + strlen(cp);
|
||||
emit(cp, sp);
|
||||
}
|
||||
putchar('\n');
|
||||
}
|
||||
|
||||
static struct ref_sort *default_sort(void)
|
||||
{
|
||||
static const char cstr_name[] = "refname";
|
||||
|
||||
struct ref_sort *sort = xcalloc(1, sizeof(*sort));
|
||||
|
||||
sort->next = NULL;
|
||||
sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name));
|
||||
return sort;
|
||||
}
|
||||
|
||||
int cmd_for_each_ref(int ac, const char **av, char *prefix)
|
||||
{
|
||||
int i, num_refs;
|
||||
const char *format = NULL;
|
||||
struct ref_sort *sort = NULL, **sort_tail = &sort;
|
||||
int maxcount = 0;
|
||||
int quote_style = -1; /* unspecified yet */
|
||||
struct refinfo **refs;
|
||||
|
||||
for (i = 1; i < ac; i++) {
|
||||
const char *arg = av[i];
|
||||
if (arg[0] != '-')
|
||||
break;
|
||||
if (!strcmp(arg, "--")) {
|
||||
i++;
|
||||
break;
|
||||
}
|
||||
if (!strncmp(arg, "--format=", 9)) {
|
||||
if (format)
|
||||
die("more than one --format?");
|
||||
format = arg + 9;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(arg, "-s") || !strcmp(arg, "--shell") ) {
|
||||
if (0 <= quote_style)
|
||||
die("more than one quoting style?");
|
||||
quote_style = QUOTE_SHELL;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(arg, "-p") || !strcmp(arg, "--perl") ) {
|
||||
if (0 <= quote_style)
|
||||
die("more than one quoting style?");
|
||||
quote_style = QUOTE_PERL;
|
||||
continue;
|
||||
}
|
||||
if (!strcmp(arg, "--python") ) {
|
||||
if (0 <= quote_style)
|
||||
die("more than one quoting style?");
|
||||
quote_style = QUOTE_PYTHON;
|
||||
continue;
|
||||
}
|
||||
if (!strncmp(arg, "--count=", 8)) {
|
||||
if (maxcount)
|
||||
die("more than one --count?");
|
||||
maxcount = atoi(arg + 8);
|
||||
if (maxcount <= 0)
|
||||
die("The number %s did not parse", arg);
|
||||
continue;
|
||||
}
|
||||
if (!strncmp(arg, "--sort=", 7)) {
|
||||
struct ref_sort *s = xcalloc(1, sizeof(*s));
|
||||
int len;
|
||||
|
||||
s->next = NULL;
|
||||
*sort_tail = s;
|
||||
sort_tail = &s->next;
|
||||
|
||||
arg += 7;
|
||||
if (*arg == '-') {
|
||||
s->reverse = 1;
|
||||
arg++;
|
||||
}
|
||||
len = strlen(arg);
|
||||
sort->atom = parse_atom(arg, arg+len);
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (quote_style < 0)
|
||||
quote_style = QUOTE_NONE;
|
||||
|
||||
if (!sort)
|
||||
sort = default_sort();
|
||||
sort_atom_limit = used_atom_cnt;
|
||||
if (!format)
|
||||
format = "%(objectname) %(objecttype)\t%(refname)";
|
||||
|
||||
verify_format(format);
|
||||
|
||||
refs = grab_refs(av + i, &num_refs);
|
||||
|
||||
for (i = 0; i < used_atom_cnt; i++) {
|
||||
if (used_atom[i][0] == '*') {
|
||||
need_tagged = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
sort_refs(sort, refs, num_refs);
|
||||
|
||||
if (!maxcount || num_refs < maxcount)
|
||||
maxcount = num_refs;
|
||||
for (i = 0; i < maxcount; i++)
|
||||
show_ref(refs[i], format, quote_style);
|
||||
return 0;
|
||||
}
|
|
@ -28,6 +28,7 @@ extern int cmd_diff(int argc, const char **argv, const char *prefix);
|
|||
extern int cmd_diff_stages(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_diff_tree(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_for_each_ref(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_format_patch(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_grep(int argc, const char **argv, const char *prefix);
|
||||
|
@ -50,8 +51,8 @@ extern int cmd_rev_list(int argc, const char **argv, const char *prefix);
|
|||
extern int cmd_rev_parse(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_rm(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_runstatus(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_show(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
|
||||
extern int cmd_tar_tree(int argc, const char **argv, const char *prefix);
|
||||
|
|
1
git.c
1
git.c
|
@ -233,6 +233,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
|
|||
{ "diff-stages", cmd_diff_stages, RUN_SETUP },
|
||||
{ "diff-tree", cmd_diff_tree, RUN_SETUP },
|
||||
{ "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
|
||||
{ "for-each-ref", cmd_for_each_ref, RUN_SETUP },
|
||||
{ "format-patch", cmd_format_patch, RUN_SETUP },
|
||||
{ "get-tar-commit-id", cmd_get_tar_commit_id },
|
||||
{ "grep", cmd_grep, RUN_SETUP },
|
||||
|
|
32
object.c
32
object.c
|
@ -138,15 +138,11 @@ struct object *lookup_unknown_object(const unsigned char *sha1)
|
|||
return obj;
|
||||
}
|
||||
|
||||
struct object *parse_object(const unsigned char *sha1)
|
||||
struct object *parse_object_buffer(const unsigned char *sha1, const char *type, unsigned long size, void *buffer, int *eaten_p)
|
||||
{
|
||||
unsigned long size;
|
||||
char type[20];
|
||||
void *buffer = read_sha1_file(sha1, type, &size);
|
||||
if (buffer) {
|
||||
struct object *obj;
|
||||
if (check_sha1_signature(sha1, buffer, size, type) < 0)
|
||||
printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
|
||||
int eaten = 0;
|
||||
|
||||
if (!strcmp(type, blob_type)) {
|
||||
struct blob *blob = lookup_blob(sha1);
|
||||
parse_blob_buffer(blob, buffer, size);
|
||||
|
@ -156,14 +152,14 @@ struct object *parse_object(const unsigned char *sha1)
|
|||
obj = &tree->object;
|
||||
if (!tree->object.parsed) {
|
||||
parse_tree_buffer(tree, buffer, size);
|
||||
buffer = NULL;
|
||||
eaten = 1;
|
||||
}
|
||||
} else if (!strcmp(type, commit_type)) {
|
||||
struct commit *commit = lookup_commit(sha1);
|
||||
parse_commit_buffer(commit, buffer, size);
|
||||
if (!commit->buffer) {
|
||||
commit->buffer = buffer;
|
||||
buffer = NULL;
|
||||
eaten = 1;
|
||||
}
|
||||
obj = &commit->object;
|
||||
} else if (!strcmp(type, tag_type)) {
|
||||
|
@ -173,6 +169,24 @@ struct object *parse_object(const unsigned char *sha1)
|
|||
} else {
|
||||
obj = NULL;
|
||||
}
|
||||
*eaten_p = eaten;
|
||||
return obj;
|
||||
}
|
||||
|
||||
struct object *parse_object(const unsigned char *sha1)
|
||||
{
|
||||
unsigned long size;
|
||||
char type[20];
|
||||
int eaten;
|
||||
void *buffer = read_sha1_file(sha1, type, &size);
|
||||
|
||||
if (buffer) {
|
||||
struct object *obj;
|
||||
if (check_sha1_signature(sha1, buffer, size, type) < 0)
|
||||
printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
|
||||
|
||||
obj = parse_object_buffer(sha1, type, size, buffer, &eaten);
|
||||
if (!eaten)
|
||||
free(buffer);
|
||||
return obj;
|
||||
}
|
||||
|
|
6
object.h
6
object.h
|
@ -59,6 +59,12 @@ void created_object(const unsigned char *sha1, struct object *obj);
|
|||
/** Returns the object, having parsed it to find out what it is. **/
|
||||
struct object *parse_object(const unsigned char *sha1);
|
||||
|
||||
/* Given the result of read_sha1_file(), returns the object after
|
||||
* parsing it. eaten_p indicates if the object has a borrowed copy
|
||||
* of buffer and the caller should not free() it.
|
||||
*/
|
||||
struct object *parse_object_buffer(const unsigned char *sha1, const char *type, unsigned long size, void *buffer, int *eaten_p);
|
||||
|
||||
/** Returns the object, with potentially excess memory allocated. **/
|
||||
struct object *lookup_unknown_object(const unsigned char *sha1);
|
||||
|
||||
|
|
38
quote.c
38
quote.c
|
@ -349,3 +349,41 @@ void write_name_quoted(const char *prefix, int prefix_len,
|
|||
else
|
||||
goto no_quote;
|
||||
}
|
||||
|
||||
/* quoting as a string literal for other languages */
|
||||
|
||||
void perl_quote_print(FILE *stream, const char *src)
|
||||
{
|
||||
const char sq = '\'';
|
||||
const char bq = '\\';
|
||||
char c;
|
||||
|
||||
fputc(sq, stream);
|
||||
while ((c = *src++)) {
|
||||
if (c == sq || c == bq)
|
||||
fputc(bq, stream);
|
||||
fputc(c, stream);
|
||||
}
|
||||
fputc(sq, stream);
|
||||
}
|
||||
|
||||
void python_quote_print(FILE *stream, const char *src)
|
||||
{
|
||||
const char sq = '\'';
|
||||
const char bq = '\\';
|
||||
const char nl = '\n';
|
||||
char c;
|
||||
|
||||
fputc(sq, stream);
|
||||
while ((c = *src++)) {
|
||||
if (c == nl) {
|
||||
fputc(bq, stream);
|
||||
fputc('n', stream);
|
||||
continue;
|
||||
}
|
||||
if (c == sq || c == bq)
|
||||
fputc(bq, stream);
|
||||
fputc(c, stream);
|
||||
}
|
||||
fputc(sq, stream);
|
||||
}
|
||||
|
|
4
quote.h
4
quote.h
|
@ -52,4 +52,8 @@ extern char *unquote_c_style(const char *quoted, const char **endp);
|
|||
extern void write_name_quoted(const char *prefix, int prefix_len,
|
||||
const char *name, int quote, FILE *out);
|
||||
|
||||
/* quoting as a string literal for other languages */
|
||||
extern void perl_quote_print(FILE *stream, const char *src);
|
||||
extern void python_quote_print(FILE *stream, const char *src);
|
||||
|
||||
#endif
|
||||
|
|
Loading…
Reference in a new issue