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From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Elijah Newren <newren@gmail.com>
Cc: "Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>,
	"Git Mailing List" <git@vger.kernel.org>,
	"René Scharfe" <l.s.r@web.de>, "Taylor Blau" <me@ttaylorr.com>,
	"Derrick Stolee" <stolee@gmail.com>
Subject: Re: [PATCH v3 2/7] archive --add-file-with-contents: allow paths containing colons
Date: Mon, 9 May 2022 23:04:45 +0200 (CEST)	[thread overview]
Message-ID: <nycvar.QRO.7.76.6.2205092302550.346@tvgsbejvaqbjf.bet> (raw)
In-Reply-To: <CABPp-BEpA52Zq=43j3D=io7h4ooSVGd-644iJkGU5+MmsJjDZw@mail.gmail.com>

Hi Elijah,

On Fri, 6 May 2022, Elijah Newren wrote:

> On Wed, May 4, 2022 at 8:25 AM Johannes Schindelin via GitGitGadget
> <gitgitgadget@gmail.com> wrote:
> >
> > From: Johannes Schindelin <johannes.schindelin@gmx.de>
> >
> > 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>
> > ---
> >  Documentation/git-archive.txt | 13 +++++++++----
> >  archive.c                     | 34 +++++++++++++++++++++++++++++-----
> >  t/t5003-archive-zip.sh        |  8 ++++++++
> >  3 files changed, 46 insertions(+), 9 deletions(-)
> >
> > diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt
> > index a0edc9167b2..1789ce4c232 100644
> > --- a/Documentation/git-archive.txt
> > +++ b/Documentation/git-archive.txt
> > @@ -67,10 +67,15 @@ OPTIONS
> >         by concatenating the value for `--prefix` (if any) and the
> >         basename of <file>.
> >  +
> > -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. In this case, 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.
>
> The path must also be quoted if it begins or ends with a double-quote, right?

True.

> Also, would people want to be able to pass a pathname from the output
> of e.g. `git ls-files -o`, which may quote additional characters?

Also true.

> > ++
> > +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
> > diff --git a/archive.c b/archive.c
> > index d798624cd5f..3b751027143 100644
> > --- a/archive.c
> > +++ b/archive.c
> > @@ -533,13 +533,37 @@ 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 {
> > -               const char *colon = strchr(arg, ':');
> >                 char *p;
> >
> > -               if (!colon)
> > -                       die(_("missing colon: '%s'"), arg);
> > +               if (*arg != '"') {
> > +                       const char *colon = strchr(arg, ':');
> > +
> > +                       if (!colon)
> > +                               die(_("missing colon: '%s'"), arg);
> > +                       p = xstrndup(arg, colon - arg);
> > +                       arg = colon + 1;
> > +               } else {
> > +                       struct strbuf buf = STRBUF_INIT;
> > +                       const char *orig = arg;
> > +
> > +                       for (;;) {
> > +                               if (!*(++arg))
> > +                                       die(_("unclosed quote: '%s'"), orig);
> > +                               if (*arg == '"')
> > +                                       break;
> > +                               if (*arg == '\\' && *(++arg) == '\0')
> > +                                       die(_("trailing backslash: '%s"), orig);
> > +                               else
> > +                                       strbuf_addch(&buf, *arg);
> > +                       }
> > +
> > +                       if (*(++arg) != ':')
> > +                               die(_("missing colon: '%s'"), orig);
> > +
> > +                       p = strbuf_detach(&buf, NULL);
> > +                       arg++;
> > +               }
>
> Should we use unquote_c_style() here instead of rolling another parser
> to do unquoting?  That would have the added benefit of allowing people
> to use filenames from the output of various git commands that do
> special quoting -- such as octal sequences for non-ascii characters.

Yep, let's do that. I somehow missed that function while glimpsing at
`quote.h`.

Thank you for your review!
Dscho

> >
> > -               p = xstrndup(arg, colon - arg);
> >                 if (!args->prefix)
> >                         path = p;
> >                 else {
> > @@ -548,7 +572,7 @@ static int add_file_cb(const struct option *opt, const char *arg, int unset)
> >                 }
> >                 memset(&info->stat, 0, sizeof(info->stat));
> >                 info->stat.st_mode = S_IFREG | 0644;
> > -               info->content = xstrdup(colon + 1);
> > +               info->content = xstrdup(arg);
> >                 info->stat.st_size = strlen(info->content);
> >         }
> >         item = string_list_append_nodup(&args->extra_files, path);
> > diff --git a/t/t5003-archive-zip.sh b/t/t5003-archive-zip.sh
> > index 8ff1257f1a0..5b8bbfc2692 100755
> > --- a/t/t5003-archive-zip.sh
> > +++ b/t/t5003-archive-zip.sh
> > @@ -207,13 +207,21 @@ check_zip with_untracked
> >  check_added with_untracked untracked untracked
> >
> >  test_expect_success UNZIP 'git archive --format=zip --add-file-with-content' '
> > +       if test_have_prereq FUNNYNAMES
> > +       then
> > +               QUOTED=quoted:colon
> > +       else
> > +               QUOTED=quoted
> > +       fi &&
> >         git archive --format=zip >with_file_with_content.zip \
> > +               --add-file-with-content=\"$QUOTED\": \
> >                 --add-file-with-content=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 $QUOTED &&
> >                 test world = $(cat hello)
> >         )
> >  '
> > --
> > gitgitgadget
>
>

  reply	other threads:[~2022-05-09 21:05 UTC|newest]

Thread overview: 140+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-26  8:41 [PATCH 0/5] scalar: implement the subcommand "diagnose" Johannes Schindelin via GitGitGadget
2022-01-26  8:41 ` [PATCH 1/5] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-01-26  9:34   ` René Scharfe
2022-01-26 22:20     ` Taylor Blau
2022-02-06 21:34       ` Johannes Schindelin
2022-01-27 19:38   ` Elijah Newren
2022-01-26  8:41 ` [PATCH 2/5] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-01-26  8:41 ` [PATCH 3/5] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-01-26 22:43   ` Taylor Blau
2022-01-27 15:14     ` Derrick Stolee
2022-02-06 21:38       ` Johannes Schindelin
2022-01-26  8:41 ` [PATCH 4/5] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-01-26 22:50   ` Taylor Blau
2022-01-27 15:17     ` Derrick Stolee
2022-01-27 18:59   ` Elijah Newren
2022-02-06 21:25     ` Johannes Schindelin
2022-01-26  8:41 ` [PATCH 5/5] scalar diagnose: show a spinner while staging content Johannes Schindelin via GitGitGadget
2022-01-27 15:19 ` [PATCH 0/5] scalar: implement the subcommand "diagnose" Derrick Stolee
2022-02-06 21:13   ` Johannes Schindelin
2022-02-06 22:39 ` [PATCH v2 0/6] " Johannes Schindelin via GitGitGadget
2022-02-06 22:39   ` [PATCH v2 1/6] archive: optionally add "virtual" files Johannes Schindelin via GitGitGadget
2022-02-07 19:55     ` René Scharfe
2022-02-07 23:30       ` Junio C Hamano
2022-02-08 13:12         ` Johannes Schindelin
2022-02-08 17:44           ` Junio C Hamano
2022-02-08 20:58             ` René Scharfe
2022-02-09 22:48               ` Junio C Hamano
2022-02-10 19:10                 ` René Scharfe
2022-02-10 19:23                   ` Junio C Hamano
2022-02-11 19:16                     ` René Scharfe
2022-02-11 21:27                       ` Junio C Hamano
2022-02-12  9:12                         ` René Scharfe
2022-02-13  6:25                           ` Junio C Hamano
2022-02-13  9:02                             ` René Scharfe
2022-02-14 17:22                               ` Junio C Hamano
2022-02-08 12:54       ` Johannes Schindelin
2022-02-06 22:39   ` [PATCH v2 2/6] scalar: validate the optional enlistment argument Johannes Schindelin via GitGitGadget
2022-02-06 22:39   ` [PATCH v2 3/6] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-02-07 19:55     ` René Scharfe
2022-02-08 12:08       ` Johannes Schindelin
2022-02-06 22:39   ` [PATCH v2 4/6] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-02-06 22:39   ` [PATCH v2 5/6] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-02-06 22:39   ` [PATCH v2 6/6] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-05-04 15:25   ` [PATCH v3 0/7] scalar: implement the subcommand "diagnose" Johannes Schindelin via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 1/7] archive: optionally add "virtual" files Johannes Schindelin via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 2/7] archive --add-file-with-contents: allow paths containing colons Johannes Schindelin via GitGitGadget
2022-05-07  2:06       ` Elijah Newren
2022-05-09 21:04         ` Johannes Schindelin [this message]
2022-05-04 15:25     ` [PATCH v3 3/7] scalar: validate the optional enlistment argument Johannes Schindelin via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 4/7] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 5/7] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 6/7] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-05-04 15:25     ` [PATCH v3 7/7] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-05-07  2:23     ` [PATCH v3 0/7] scalar: implement the subcommand "diagnose" Elijah Newren
2022-05-10 19:26     ` [PATCH v4 " Johannes Schindelin via GitGitGadget
2022-05-10 19:26       ` [PATCH v4 1/7] archive: optionally add "virtual" files Johannes Schindelin via GitGitGadget
2022-05-10 21:48         ` Junio C Hamano
2022-05-10 22:06           ` rsbecker
2022-05-10 23:21             ` Junio C Hamano
2022-05-11 16:14               ` René Scharfe
2022-05-11 19:27                 ` Junio C Hamano
2022-05-12 16:16                   ` René Scharfe
2022-05-12 18:15                     ` Junio C Hamano
2022-05-12 21:31                       ` Junio C Hamano
2022-05-14  7:06                         ` René Scharfe
2022-05-12 22:31           ` [PATCH] fixup! " Junio C Hamano
2022-05-10 19:26       ` [PATCH v4 2/7] archive --add-file-with-contents: allow paths containing colons Johannes Schindelin via GitGitGadget
2022-05-10 21:56         ` Junio C Hamano
2022-05-10 22:23           ` rsbecker
2022-05-19 18:12             ` Johannes Schindelin
2022-05-19 18:09           ` Johannes Schindelin
2022-05-19 18:44             ` Junio C Hamano
2022-05-10 19:27       ` [PATCH v4 3/7] scalar: validate the optional enlistment argument Johannes Schindelin via GitGitGadget
2022-05-17 14:51         ` Ævar Arnfjörð Bjarmason
2022-05-18 17:35           ` Junio C Hamano
2022-05-20  7:30             ` Ævar Arnfjörð Bjarmason
2022-05-20 15:55               ` Johannes Schindelin
2022-05-21  9:54                 ` Ævar Arnfjörð Bjarmason
2022-05-22  5:50                   ` Junio C Hamano
2022-05-24 12:25                     ` Johannes Schindelin
2022-05-24 18:11                       ` Ævar Arnfjörð Bjarmason
2022-05-24 19:29                         ` Junio C Hamano
2022-05-25 10:31                           ` Johannes Schindelin
2022-05-10 19:27       ` [PATCH v4 4/7] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-05-17 14:53         ` Ævar Arnfjörð Bjarmason
2022-05-10 19:27       ` [PATCH v4 5/7] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-05-10 19:27       ` [PATCH v4 6/7] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-05-10 19:27       ` [PATCH v4 7/7] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-05-17 15:03       ` [PATCH v4 0/7] scalar: implement the subcommand "diagnose" Ævar Arnfjörð Bjarmason
2022-05-17 15:28         ` rsbecker
2022-05-19 18:17           ` Johannes Schindelin
2022-05-19 18:17       ` [PATCH v5 " Johannes Schindelin via GitGitGadget
2022-05-19 18:17         ` [PATCH v5 1/7] archive: optionally add "virtual" files Johannes Schindelin via GitGitGadget
2022-05-20 14:41           ` René Scharfe
2022-05-20 16:21             ` Junio C Hamano
2022-05-19 18:17         ` [PATCH v5 2/7] archive --add-file-with-contents: allow paths containing colons Johannes Schindelin via GitGitGadget
2022-05-19 18:17         ` [PATCH v5 3/7] scalar: validate the optional enlistment argument Johannes Schindelin via GitGitGadget
2022-05-19 18:18         ` [PATCH v5 4/7] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-05-19 18:18         ` [PATCH v5 5/7] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-05-19 18:18         ` [PATCH v5 6/7] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-05-19 18:18         ` [PATCH v5 7/7] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-05-19 19:23         ` [PATCH v5 0/7] scalar: implement the subcommand "diagnose" Junio C Hamano
2022-05-21 15:08         ` [PATCH v6 " Johannes Schindelin via GitGitGadget
2022-05-21 15:08           ` [PATCH v6 1/7] archive: optionally add "virtual" files Johannes Schindelin via GitGitGadget
2022-05-25 21:11             ` Junio C Hamano
2022-05-26  9:09               ` René Scharfe
2022-05-26 17:10                 ` Junio C Hamano
2022-05-26 18:57                   ` René Scharfe
2022-05-26 20:16                     ` Junio C Hamano
2022-05-27 17:02                       ` René Scharfe
2022-05-27 19:01                         ` Junio C Hamano
2022-05-28  6:57                           ` René Scharfe
2022-05-21 15:08           ` [PATCH v6 2/7] archive --add-virtual-file: allow paths containing colons Johannes Schindelin via GitGitGadget
2022-05-25 20:22             ` Junio C Hamano
2022-05-25 21:42               ` Junio C Hamano
2022-05-25 22:34                 ` Junio C Hamano
2022-05-21 15:08           ` [PATCH v6 3/7] scalar: validate the optional enlistment argument Johannes Schindelin via GitGitGadget
2022-05-21 15:08           ` [PATCH v6 4/7] Implement `scalar diagnose` Johannes Schindelin via GitGitGadget
2022-05-21 15:08           ` [PATCH v6 5/7] scalar diagnose: include disk space information Johannes Schindelin via GitGitGadget
2022-05-21 15:08           ` [PATCH v6 6/7] scalar: teach `diagnose` to gather packfile info Matthew John Cheetham via GitGitGadget
2022-05-21 15:08           ` [PATCH v6 7/7] scalar: teach `diagnose` to gather loose objects information Matthew John Cheetham via GitGitGadget
2022-05-28 23:11           ` [PATCH v6+ 0/7] js/scalar-diagnose rebased Junio C Hamano
2022-05-28 23:11             ` [PATCH v6+ 1/7] archive: optionally add "virtual" files Junio C Hamano
2022-05-28 23:11             ` [PATCH v6+ 2/7] archive --add-virtual-file: allow paths containing colons Junio C Hamano
2022-06-15 18:16               ` Adam Dinwoodie
2022-06-15 20:00                 ` Junio C Hamano
2022-06-15 21:36                   ` Adam Dinwoodie
2022-06-18 20:19                     ` Johannes Schindelin
2022-06-18 22:05                       ` Junio C Hamano
2022-06-20  9:41                       ` Adam Dinwoodie
2022-05-28 23:11             ` [PATCH v6+ 3/7] scalar: validate the optional enlistment argument Junio C Hamano
2022-05-28 23:11             ` [PATCH v6+ 4/7] scalar: implement `scalar diagnose` Junio C Hamano
2022-06-10  2:08               ` Ævar Arnfjörð Bjarmason
2022-06-10 16:44                 ` Junio C Hamano
2022-06-10 17:35                   ` Ævar Arnfjörð Bjarmason
2022-05-28 23:11             ` [PATCH v6+ 5/7] scalar diagnose: include disk space information Junio C Hamano
2022-05-28 23:11             ` [PATCH v6+ 6/7] scalar: teach `diagnose` to gather packfile info Junio C Hamano
2022-05-28 23:11             ` [PATCH v6+ 7/7] scalar: teach `diagnose` to gather loose objects information Junio C Hamano
2022-05-30 10:12             ` [PATCH v6+ 0/7] js/scalar-diagnose rebased Johannes Schindelin
2022-05-30 17:37               ` Junio C Hamano

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