Am 19.05.22 um 20:17 schrieb Johannes Schindelin via GitGitGadget:
> From: Johannes Schindelin <johannes.schindelin@xxxxxx>
>
> With the `--add-file-with-content=<path>:<content>` option, `git
^^^^^^^^^^^^^^^^^^^^^^^
That's still the old option name. Same in the subject of patch 2.
> archive` now supports use cases where relatively trivial files need to
> be added that do not exist on disk.
>
> This will allow us to generate `.zip` files with generated content,
> without having to add said content to the object database and without
> having to write it out to disk.
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
> ---
> Documentation/git-archive.txt | 11 ++++++++
> archive.c | 53 +++++++++++++++++++++++++++++------
> t/t5003-archive-zip.sh | 12 ++++++++
> 3 files changed, 68 insertions(+), 8 deletions(-)
>
> diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt
> index bc4e76a7834..893cb1075bf 100644
> --- a/Documentation/git-archive.txt
> +++ b/Documentation/git-archive.txt
> @@ -61,6 +61,17 @@ OPTIONS
> by concatenating the value for `--prefix` (if any) and the
> basename of <file>.
>
> +--add-virtual-file=<path>:<content>::
> + Add the specified contents to the archive. Can be repeated to add
> + multiple files. The path of the file in the archive is built
> + 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.
> +
> --worktree-attributes::
> Look for attributes in .gitattributes files in the working tree
> as well (see <<ATTRIBUTES>>).
> diff --git a/archive.c b/archive.c
> index a3bbb091256..d20e16fa819 100644
> --- a/archive.c
> +++ b/archive.c
> @@ -263,6 +263,7 @@ static int queue_or_write_archive_entry(const struct object_id *oid,
> struct extra_file_info {
> char *base;
> struct stat stat;
> + void *content;
> };
>
> int write_archive_entries(struct archiver_args *args,
> @@ -337,7 +338,13 @@ int write_archive_entries(struct archiver_args *args,
> strbuf_addstr(&path_in_archive, basename(path));
>
> strbuf_reset(&content);
> - if (strbuf_read_file(&content, path, info->stat.st_size) < 0)
> + if (info->content)
> + err = write_entry(args, &fake_oid, path_in_archive.buf,
> + path_in_archive.len,
> + info->stat.st_mode,
> + info->content, info->stat.st_size);
> + else if (strbuf_read_file(&content, path,
> + info->stat.st_size) < 0)
> err = error_errno(_("could not read '%s'"), path);
> else
> err = write_entry(args, &fake_oid, path_in_archive.buf,
> @@ -493,6 +500,7 @@ static void extra_file_info_clear(void *util, const char *str)
> {
> struct extra_file_info *info = util;
> free(info->base);
> + free(info->content);
> free(info);
> }
>
> @@ -514,14 +522,40 @@ static int add_file_cb(const struct option *opt, const char *arg, int unset)
> if (!arg)
> return -1;
>
> - path = prefix_filename(args->prefix, arg);
> - item = string_list_append_nodup(&args->extra_files, path);
> - item->util = info = xmalloc(sizeof(*info));
> + info = xmalloc(sizeof(*info));
> info->base = xstrdup_or_null(base);
> - if (stat(path, &info->stat))
> - die(_("File not found: %s"), path);
> - if (!S_ISREG(info->stat.st_mode))
> - die(_("Not a regular file: %s"), path);
> +
> + if (!strcmp(opt->long_name, "add-file")) {
> + path = prefix_filename(args->prefix, arg);
> + if (stat(path, &info->stat))
> + die(_("File not found: %s"), path);
> + if (!S_ISREG(info->stat.st_mode))
> + 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;
> +
> + if (!colon)
> + die(_("missing colon: '%s'"), arg);
> +
> + p = xstrndup(arg, colon - arg);
> + if (!args->prefix)
> + path = p;
> + else {
> + path = prefix_filename(args->prefix, p);
> + free(p);
> + }
> + memset(&info->stat, 0, sizeof(info->stat));
> + info->stat.st_mode = S_IFREG | 0644;
> + info->content = xstrdup(colon + 1);
> + info->stat.st_size = strlen(info->content);
> + } else {
> + BUG("add_file_cb() called for %s", opt->long_name);
> + }
> + item = string_list_append_nodup(&args->extra_files, path);
> + item->util = info;
> +
> return 0;
> }
>
> @@ -554,6 +588,9 @@ static int parse_archive_args(int argc, const char **argv,
> { OPTION_CALLBACK, 0, "add-file", args, N_("file"),
> N_("add untracked file to archive"), 0, add_file_cb,
> (intptr_t)&base },
> + { OPTION_CALLBACK, 0, "add-virtual-file", args,
> + N_("path:content"), N_("add untracked file to archive"), 0,
> + add_file_cb, (intptr_t)&base },
> OPT_STRING('o', "output", &output, N_("file"),
> N_("write the archive to this file")),
> OPT_BOOL(0, "worktree-attributes", &worktree_attributes,
> diff --git a/t/t5003-archive-zip.sh b/t/t5003-archive-zip.sh
> index 1e6d18b140e..ebc26e89a9b 100755
> --- a/t/t5003-archive-zip.sh
> +++ b/t/t5003-archive-zip.sh
> @@ -206,6 +206,18 @@ test_expect_success 'git archive --format=zip --add-file' '
> check_zip with_untracked
> check_added with_untracked untracked untracked
>
> +test_expect_success UNZIP 'git archive --format=zip --add-virtual-file' '
> + git archive --format=zip >with_file_with_content.zip \
> + --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 world = $(cat hello)
> + )
> +'
> +
> test_expect_success 'git archive --format=zip --add-file twice' '
> echo untracked >untracked &&
> git archive --format=zip --prefix=one/ --add-file=untracked \
