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archive --add-virtual-file: allow paths containing colons

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By allowing the path to be enclosed in double-quotes, we can avoid
the limitation that paths cannot contain colons.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2022-05-28 16:11:13 -07:00 committed by Junio C Hamano
parent 237a1d138c
commit de1f68a968
3 changed files with 38 additions and 14 deletions
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14
Documentation/git-archive.txt
View File

@ -69,10 +69,16 @@ OPTIONS
by concatenating the value of the last `--prefix` option (if any)
before this `--add-virtual-file` and `<path>`.
+
The `<path>` cannot contain any colon, the file mode is limited to
a regular file, and the option may be subject to platform-dependent
command-line limits. For non-trivial cases, write an untracked file
and use `--add-file` instead.
The `<path>` argument can start and end with a literal double-quote
character; the contained file name is interpreted as a C-style string,
i.e. the backslash is interpreted as escape character. The path must
be quoted if it contains a colon, to avoid the colon from being
misinterpreted as the separator between the path and the contents, or
if the path begins or ends with a double-quote character.
+
The file mode is limited to a regular file, and the option may be
subject to platform-dependent command-line limits. For non-trivial
cases, write an untracked file and use `--add-file` instead.
--worktree-attributes::
Look for attributes in .gitattributes files in the working tree

30
archive.c
View File

@ -9,6 +9,7 @@
#include "parse-options.h"
#include "unpack-trees.h"
#include "dir.h"
#include "quote.h"
static char const * const archive_usage[] = {
N_("git archive [<options>] <tree-ish> [<path>...]"),
@ -535,22 +536,31 @@ static int add_file_cb(const struct option *opt, const char *arg, int unset)
die(_("Not a regular file: %s"), path);
info->content = NULL; /* read the file later */
} else if (!strcmp(opt->long_name, "add-virtual-file")) {
const char *colon = strchr(arg, ':');
char *p;
struct strbuf buf = STRBUF_INIT;
const char *p = arg;
if (!colon)
if (*p != '"')
p = strchr(p, ':');
else if (unquote_c_style(&buf, p, &p) < 0)
die(_("unclosed quote: '%s'"), arg);
if (!p || *p != ':')
die(_("missing colon: '%s'"), arg);
p = xstrndup(arg, colon - arg);
if (!args->prefix)
path = p;
else {
path = prefix_filename(args->prefix, p);
free(p);
if (p == arg)
die(_("empty file name: '%s'"), arg);
path = buf.len ?
strbuf_detach(&buf, NULL) : xstrndup(arg, p - arg);
if (args->prefix) {
char *save = path;
path = prefix_filename(args->prefix, path);
free(save);
}
memset(&info->stat, 0, sizeof(info->stat));
info->stat.st_mode = S_IFREG | 0644;
info->content = xstrdup(colon + 1);
info->content = xstrdup(p + 1);
info->stat.st_size = strlen(info->content);
} else {
BUG("add_file_cb() called for %s", opt->long_name);

8
t/t5003-archive-zip.sh
View File

@ -207,13 +207,21 @@ check_zip with_untracked
check_added with_untracked untracked untracked
test_expect_success UNZIP 'git archive --format=zip --add-virtual-file' '
if test_have_prereq FUNNYNAMES
then
PATHNAME="pathname with : colon"
else
PATHNAME="pathname without colon"
fi &&
git archive --format=zip >with_file_with_content.zip \
--add-virtual-file=\""$PATHNAME"\": \
--add-virtual-file=hello:world $EMPTY_TREE &&
test_when_finished "rm -rf tmp-unpack" &&
mkdir tmp-unpack && (
cd tmp-unpack &&
"$GIT_UNZIP" ../with_file_with_content.zip &&
test_path_is_file hello &&
test_path_is_file "$PATHNAME" &&
test world = $(cat hello)
)
'