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worktree: teach list to annotate prunable worktree

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The "git worktree list" command shows the absolute path to the worktree,
the commit that is checked out, the name of the branch, and a "locked"
annotation if the worktree is locked, however, it does not indicate
whether the worktree is prunable.

The "prune" command will remove a worktree if it is prunable unless
`--dry-run` option is specified. This could lead to a worktree being
removed without the user realizing before it is too late, in case the
user forgets to pass --dry-run for instance. If the "list" command shows
which worktree is prunable, the user could verify before running
"git worktree prune" and hopefully prevents the working tree to be
removed "accidentally" on the worse case scenario.

Let's teach "git worktree list" to show when a worktree is a prunable
candidate for both default and porcelain format.

In the default format a "prunable" text is appended:

    $ git worktree list
    /path/to/main      aba123 [main]
    /path/to/linked    123abc [branch-a]
    /path/to/prunable  ace127 (detached HEAD) prunable

In the --porcelain format a prunable label is added followed by
its reason:

    $ git worktree list --porcelain
    ...
    worktree /path/to/prunable
    HEAD abc1234abc1234abc1234abc1234abc1234abc12
    detached
    prunable gitdir file points to non-existent location
    ...

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Rafael Silva <rafaeloliveira.cs@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Rafael Silva
2021-01-27 09:03:09 +01:00
committed by Junio C Hamano
parent 862c723d18
commit 9b19a58f66
3 changed files with 66 additions and 2 deletions
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10
builtin/worktree.c
View File

@ -592,6 +592,10 @@ static void show_worktree_porcelain(struct worktree *wt)
} else if (reason)
printf("locked\n");
reason = worktree_prune_reason(wt, expire);
if (reason)
printf("prunable %s\n", reason);
printf("\n");
}
@ -620,6 +624,9 @@ static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
if (worktree_lock_reason(wt))
strbuf_addstr(&sb, " locked");
if (worktree_prune_reason(wt, expire))
strbuf_addstr(&sb, " prunable");
printf("%s\n", sb.buf);
strbuf_release(&sb);
}
@ -663,9 +670,12 @@ static int list(int ac, const char **av, const char *prefix)
struct option options[] = {
OPT_BOOL(0, "porcelain", &porcelain, N_("machine-readable output")),
OPT_EXPIRY_DATE(0, "expire", &expire,
N_("add 'prunable' annotation to worktrees older than <time>")),
OPT_END()
};
expire = TIME_MAX;
ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
if (ac)
usage_with_options(worktree_usage, options);