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Re: [PATCH v2 3/6] stash: convert apply to builtin

From
Christian Couder <christian.couder@gmail.com>
Date
Mar 26, 2018, 07:05 UTC
Message-ID
<CAP8UFD0wc2i3W4FNZPcDs3ELJGJj=4NaP8mhd-zMAkdK=vXT1A@mail.gmail.com>
In-Reply-To
<20180326011426.19159-4-joel@teichroeb.net>
On Mon, Mar 26, 2018 at 3:14 AM, Joel Teichroeb <joel@teichroeb.net> wrote:
> Signed-off-by: Joel Teichroeb <joel@teichroeb.net>

The commit message in this patch and the following ones could be a bit more verbose. It could at least tell that the end goal is to convert git-stash.sh to a C builtin.

> +static void destroy_stash_info(struct stash_info *info)
> +{
> +       strbuf_release(&info->revision);
> +}

Not sure if "destroy" is the right word in the function name. I would have used "free" instead.

Show 22 quoted lines
> +static int get_stash_info(struct stash_info *info, int argc, const char **argv)
> +{
> +       struct strbuf w_commit_rev = STRBUF_INIT;
> +       struct strbuf b_commit_rev = STRBUF_INIT;
> +       struct strbuf w_tree_rev = STRBUF_INIT;
> +       struct strbuf b_tree_rev = STRBUF_INIT;
> +       struct strbuf i_tree_rev = STRBUF_INIT;
> +       struct strbuf u_tree_rev = STRBUF_INIT;
> +       struct strbuf symbolic = STRBUF_INIT;
> +       struct strbuf out = STRBUF_INIT;
> +       int ret;
> +       const char *revision;
> +       const char *commit = NULL;
> +       char *end_of_rev;
> +       info->is_stash_ref = 0;
> +
> +       if (argc > 1) {
> +               int i;
> +               fprintf(stderr, _("Too many revisions specified:"));
> +               for (i = 0; i < argc; ++i) {
> +                       fprintf(stderr, " '%s'", argv[i]);
> +               }
The brackets are not needed.
Show 25 quoted lines
> +               fprintf(stderr, "\n");
> +
> +               return -1;
> +       }
> +
> +       if (argc == 1)
> +               commit = argv[0];
> +
> +       strbuf_init(&info->revision, 0);
> +       if (commit == NULL) {
> +               if (have_stash()) {
> +                       destroy_stash_info(info);
> +                       return error(_("No stash entries found."));
> +               }
> +
> +               strbuf_addf(&info->revision, "%s@{0}", ref_stash);
> +       } else if (strspn(commit, "0123456789") == strlen(commit)) {
> +               strbuf_addf(&info->revision, "%s@{%s}", ref_stash, commit);
> +       } else {
> +               strbuf_addstr(&info->revision, commit);
> +       }
> +
> +       revision = info->revision.buf;
> +
> +       strbuf_addf(&w_commit_rev, "%s", revision);
Maybe use strbuf_addstr()?
> +
> +
Spurious new line.
[...]
> +static int diff_cached_index(struct strbuf *out, struct object_id *c_tree)
> +{
> +       struct child_process cp = CHILD_PROCESS_INIT;
> +    const char *c_tree_hex = oid_to_hex(c_tree);
Indent looks weird.
Show 8 quoted lines
> +
> +       cp.git_cmd = 1;
> +       argv_array_pushl(&cp.args, "diff-index", "--cached", "--name-only", "--diff-filter=A", NULL);
> +       argv_array_push(&cp.args, c_tree_hex);
> +       return pipe_command(&cp, NULL, 0, out, 0, NULL, 0);
> +}
> +
> +static int update_index(struct strbuf *out) {
The opening bracket should be on its own line.
> +       struct child_process cp = CHILD_PROCESS_INIT;
Maybe add a new line here to be more consistent with other such functions.
> +       cp.git_cmd = 1;
> +       argv_array_pushl(&cp.args, "update-index", "--add", "--stdin", NULL);
> +       return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0);
> +}
[...]
Show 13 quoted lines
> +       if (info->has_u) {
> +               struct child_process cp = CHILD_PROCESS_INIT;
> +               struct child_process cp2 = CHILD_PROCESS_INIT;
> +               int res;
> +
> +               cp.git_cmd = 1;
> +               argv_array_push(&cp.args, "read-tree");
> +               argv_array_push(&cp.args, oid_to_hex(&info->u_tree));
> +               argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", stash_index_path);
> +
> +               cp2.git_cmd = 1;
> +               argv_array_pushl(&cp2.args, "checkout-index", "--all", NULL);
> +               argv_array_pushf(&cp2.env_array, "GIT_INDEX_FILE=%s", stash_index_path);
Maybe use small functions for the above read-tree and checkout-index.
Show 5 quoted lines
> +               res = run_command(&cp) || run_command(&cp2);
> +               remove_path(stash_index_path);
> +               if (res)
> +                       return error(_("Could not restore untracked files from stash"));
> +       }
Thanks.
Previous: Joel TeichroebNext: Joel Teichroeb
Message 9 of 10 in “Convert some stash functionality to a builtin”
  1. 0/6 Convert some stash functionality to a builtinJoel Teichroeb, Mar 26, 2018
  2. 1/6 stash: Add tests for passing in too many refsJoel Teichroeb, Mar 26, 2018
  3. Johannes SchindelinMar 26, 2018
  4. 2/6 stash: Add test for branch with no argumentsJoel Teichroeb, Mar 26, 2018
  5. 4/6 stash: convert drop and clear to builtinJoel Teichroeb, Mar 26, 2018
  6. 5/6 stash: convert branch to builtinJoel Teichroeb, Mar 26, 2018
  7. 6/6 stash: convert pop to builtinJoel Teichroeb, Mar 26, 2018
  8. 3/6 stash: convert apply to builtinJoel Teichroeb, Mar 26, 2018
  9. Christian CouderMar 26, 2018
  10. Joel TeichroebMar 28, 2018

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