From: Son Luong Ngoc <sluongng@gmail.com>
To: git@vger.kernel.org
Cc: "Son Luong Ngoc" <sluongng@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH v2] fsmonitor: query watchman with right valid json
Date: Tue, 7 Jun 2022 13:14:19 +0200 [thread overview]
Message-ID: <20220607111419.15753-1-sluongng@gmail.com> (raw)
In-Reply-To: <CAL3xRKev_KHvAFuviG7RxsxA_786K4QY5F08a8D23M9MLM81+g@mail.gmail.com>
In rare circumstances where the current git index does not carry the
last_update_token, the fsmonitor v2 hook will be invoked with an
empty string which would caused the final rendered json to be invalid.
["query", "/path/to/my/git/repository/", {
"since": ,
"fields": ["name"],
"expression": ["not", ["dirname", ".git"]]
}]
Which will left user with the following error message
> git status
failed to parse command from stdin: line 2, column 13, position 67: unexpected token near ','
Watchman: command returned no output.
Falling back to scanning...
Hide the "since" field in json query when "last_update_token" is empty.
Co-authored-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Son Luong Ngoc <sluongng@gmail.com>
---
templates/hooks--fsmonitor-watchman.sample | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/templates/hooks--fsmonitor-watchman.sample b/templates/hooks--fsmonitor-watchman.sample
index 14ed0aa42d..23e856f5de 100755
--- a/templates/hooks--fsmonitor-watchman.sample
+++ b/templates/hooks--fsmonitor-watchman.sample
@@ -86,12 +86,13 @@ sub watchman_query {
# recency index to select candidate nodes and "fields" to limit the
# output to file names only. Then we're using the "expression" term to
# further constrain the results.
+ my $last_update_line = "";
if (substr($last_update_token, 0, 1) eq "c") {
$last_update_token = "\"$last_update_token\"";
+ $last_update_line = qq[\n"since": $last_update_token,];
}
my $query = <<" END";
- ["query", "$git_work_tree", {
- "since": $last_update_token,
+ ["query", "$git_work_tree", {$last_update_line
"fields": ["name"],
"expression": ["not", ["dirname", ".git"]]
}]
--
2.36.1.476.g0c4daa206d
next prev parent reply other threads:[~2022-06-07 11:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 7:54 [PATCH] fsmonitor: query watchman with right valid json Son Luong Ngoc
2022-06-07 8:40 ` Ævar Arnfjörð Bjarmason
2022-06-07 10:56 ` Son Luong Ngoc
2022-06-07 11:14 ` Son Luong Ngoc [this message]
2022-06-07 14:39 ` [PATCH v2] " Ævar Arnfjörð Bjarmason
2022-06-07 17:00 ` Junio C Hamano
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