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psql: Improve tab completion for COPY option lists.

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Previously, only the first option in a parenthesized option list was
suggested by tab completion. This commit enhances tab completion for
both COPY TO and COPY FROM commands to suggest options after each
comma.

Also add completion for HEADER and FREEZE option value candidates.

Author: Yugo Nagata <nagata@sraoss.co.jp>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/20250605100835.b396f9d656df1018f65a4556@sraoss.co.jp
This commit is contained in:
Masahiko Sawada 2025-12-22 14:28:12 -08:00
parent 37a1688a1b
commit c6a7d3bab4
1 changed files with 40 additions and 20 deletions
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60
src/bin/psql/tab-complete.in.c
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@ -3378,30 +3378,50 @@ match_previous_words(int pattern_id,
Matches("COPY|\\copy", MatchAny, "FROM", "PROGRAM", MatchAny))
COMPLETE_WITH("WITH (", "WHERE");
/* Complete COPY <sth> FROM [PROGRAM] filename WITH ( */
else if (Matches("COPY|\\copy", MatchAny, "FROM", MatchAnyExcept("PROGRAM"), "WITH", "(") ||
Matches("COPY|\\copy", MatchAny, "FROM", "PROGRAM", MatchAny, "WITH", "("))
COMPLETE_WITH(Copy_from_options);
/* Complete COPY <sth> FROM|TO [PROGRAM] filename WITH ( */
else if (HeadMatches("COPY|\\copy", MatchAny, "FROM|TO", MatchAnyExcept("PROGRAM"), "WITH", "(*") ||
HeadMatches("COPY|\\copy", MatchAny, "FROM|TO", "PROGRAM", MatchAny, "WITH", "(*"))
{
if (!HeadMatches("COPY|\\copy", MatchAny, "FROM|TO", MatchAnyExcept("PROGRAM"), "WITH", "(*)") &&
!HeadMatches("COPY|\\copy", MatchAny, "FROM|TO", "PROGRAM", MatchAny, "WITH", "(*)"))
{
/*
* This fires if we're in an unfinished parenthesized option list.
* get_previous_words treats a completed parenthesized option list
* as one word, so the above tests are correct.
*/
/* Complete COPY <sth> TO [PROGRAM] filename WITH ( */
else if (Matches("COPY|\\copy", MatchAny, "TO", MatchAnyExcept("PROGRAM"), "WITH", "(") ||
Matches("COPY|\\copy", MatchAny, "TO", "PROGRAM", MatchAny, "WITH", "("))
COMPLETE_WITH(Copy_to_options);
if (ends_with(prev_wd, '(') || ends_with(prev_wd, ','))
{
if (HeadMatches("COPY|\\copy", MatchAny, "FROM"))
COMPLETE_WITH(Copy_from_options);
else
COMPLETE_WITH(Copy_to_options);
}
/* Complete COPY <sth> FROM|TO [PROGRAM] <sth> WITH (FORMAT */
else if (Matches("COPY|\\copy", MatchAny, "FROM|TO", MatchAnyExcept("PROGRAM"), "WITH", "(", "FORMAT") ||
Matches("COPY|\\copy", MatchAny, "FROM|TO", "PROGRAM", MatchAny, "WITH", "(", "FORMAT"))
COMPLETE_WITH("binary", "csv", "text");
/* Complete COPY <sth> FROM|TO filename WITH (FORMAT */
else if (TailMatches("FORMAT"))
COMPLETE_WITH("binary", "csv", "text");
/* Complete COPY <sth> FROM [PROGRAM] filename WITH (ON_ERROR */
else if (Matches("COPY|\\copy", MatchAny, "FROM", MatchAnyExcept("PROGRAM"), "WITH", "(", "ON_ERROR") ||
Matches("COPY|\\copy", MatchAny, "FROM", "PROGRAM", MatchAny, "WITH", "(", "ON_ERROR"))
COMPLETE_WITH("stop", "ignore");
/* Complete COPY <sth> FROM|TO filename WITH (FREEZE */
else if (TailMatches("FREEZE"))
COMPLETE_WITH("true", "false");
/* Complete COPY <sth> FROM [PROGRAM] filename WITH (LOG_VERBOSITY */
else if (Matches("COPY|\\copy", MatchAny, "FROM", MatchAnyExcept("PROGRAM"), "WITH", "(", "LOG_VERBOSITY") ||
Matches("COPY|\\copy", MatchAny, "FROM", "PROGRAM", MatchAny, "WITH", "(", "LOG_VERBOSITY"))
COMPLETE_WITH("silent", "default", "verbose");
/* Complete COPY <sth> FROM|TO filename WITH (HEADER */
else if (TailMatches("HEADER"))
COMPLETE_WITH("true", "false", "MATCH");
/* Complete COPY <sth> FROM filename WITH (ON_ERROR */
else if (TailMatches("ON_ERROR"))
COMPLETE_WITH("stop", "ignore");
/* Complete COPY <sth> FROM filename WITH (LOG_VERBOSITY */
else if (TailMatches("LOG_VERBOSITY"))
COMPLETE_WITH("silent", "default", "verbose");
}
/* A completed parenthesized option list should be caught below */
}
/* Complete COPY <sth> FROM [PROGRAM] <sth> WITH (<options>) */
else if (Matches("COPY|\\copy", MatchAny, "FROM", MatchAnyExcept("PROGRAM"), "WITH", MatchAny) ||