;;; ~/.doom.d/company-sql.el ;;; Commentary: ;;; TODO ;;; Code: (require 'emacsql) (require 'emacsql-psql) (require 'dash) (require 's) (require 'cl-lib) ;;; Config (defvar-local company-sql-db-host "localhost" "Host of the postgresql database to query for autocomplete information") (defvar-local company-sql-db-port 5432 "Port of the postgresql database to query for autocomplete information") (defvar-local company-sql-db-user "postgres" "Username of the postgresql database to query for autocomplete information") (defvar-local company-sql-db-name nil "PostgreSQL database name to query for autocomplete information") ;;; DB Connection (defvar-local company-sql/connection nil) (defun company-sql/connect () (unless company-sql/connection (setq-local company-sql/connection (emacsql-psql company-sql-db-name :hostname company-sql-db-host :username company-sql-db-user :port (number-to-string company-sql-db-port)))) company-sql/connection) ;;; Utils (defmacro comment (&rest _)) (defun ->string (x) (cond ((stringp x) x) ((symbolp x) (symbol-name x)))) (defun alist-get-equal (key alist) "Like `alist-get', but uses `equal' instead of `eq' for comparing keys" (->> alist (-find (lambda (pair) (equal key (car pair)))) (cdr))) ;;; Listing relations (cl-defun company-sql/list-tables (conn) (with-timeout (3) (-map (-compose 'symbol-name 'car) (emacsql conn [:select [tablename] :from pg_catalog:pg_tables :where (and (!= schemaname '"information_schema") (!= schemaname '"pg_catalog"))])))) (cl-defun company-sql/list-columns (conn) (with-timeout (3) (-map (lambda (row) (propertize (symbol-name (nth 0 row)) 'table-name (nth 1 row) 'data-type (nth 2 row))) (emacsql conn [:select [column_name table_name data_type] :from information_schema:columns])))) ;;; Keywords (defvar company-postgresql/keywords (list "a" "abort" "abs" "absent" "absolute" "access" "according" "action" "ada" "add" "admin" "after" "aggregate" "all" "allocate" "also" "alter" "always" "analyse" "analyze" "and" "any" "are" "array" "array_agg" "array_max_cardinality" "as" "asc" "asensitive" "assertion" "assignment" "asymmetric" "at" "atomic" "attach" "attribute" "attributes" "authorization" "avg" "backward" "base64" "before" "begin" "begin_frame" "begin_partition" "bernoulli" "between" "bigint" "binary" "bit" "bit_length" "blob" "blocked" "bom" "boolean" "both" "breadth" "by" "c" "cache" "call" "called" "cardinality" "cascade" "cascaded" "case" "cast" "catalog" "catalog_name" "ceil" "ceiling" "chain" "char" "character" "characteristics" "characters" "character_length" "character_set_catalog" "character_set_name" "character_set_schema" "char_length" "check" "checkpoint" "class" "class_origin" "clob" "close" "cluster" "coalesce" "cobol" "collate" "collation" "collation_catalog" "collation_name" "collation_schema" "collect" "column" "columns" "column_name" "command_function" "command_function_code" "comment" "comments" "commit" "committed" "concurrently" "condition" "condition_number" "configuration" "conflict" "connect" "connection" "connection_name" "constraint" "constraints" "constraint_catalog" "constraint_name" "constraint_schema" "constructor" "contains" "content" "continue" "control" "conversion" "convert" "copy" "corr" "corresponding" "cost" "count" "covar_pop" "covar_samp" "create" "cross" "csv" "cube" "cume_dist" "current" "current_catalog" "current_date" "current_default_transform_group" "current_path" "current_role" "current_row" "current_schema" "current_time" "current_timestamp" "current_transform_group_for_type" "current_user" "cursor" "cursor_name" "cycle" "data" "database" "datalink" "date" "datetime_interval_code" "datetime_interval_precision" "day" "db" "deallocate" "dec" "decimal" "declare" "default" "defaults" "deferrable" "deferred" "defined" "definer" "degree" "delete" "delimiter" "delimiters" "dense_rank" "depends" "depth" "deref" "derived" "desc" "describe" "descriptor" "detach" "deterministic" "diagnostics" "dictionary" "disable" "discard" "disconnect" "dispatch" "distinct" "dlnewcopy" "dlpreviouscopy" "dlurlcomplete" "dlurlcompleteonly" "dlurlcompletewrite" "dlurlpath" "dlurlpathonly" "dlurlpathwrite" "dlurlscheme" "dlurlserver" "dlvalue" "do" "document" "domain" "double" "drop" "dynamic" "dynamic_function" "dynamic_function_code" "each" "element" "else" "empty" "enable" "encoding" "encrypted" "end" "end-exec" "end_frame" "end_partition" "enforced" "enum" "equals" "escape" "event" "every" "except" "exception" "exclude" "excluding" "exclusive" "exec" "execute" "exists" "exp" "explain" "expression" "extension" "external" "extract" "false" "family" "fetch" "file" "filter" "final" "first" "first_value" "flag" "float" "floor" "following" "for" "force" "foreign" "fortran" "forward" "found" "frame_row" "free" "freeze" "from" "fs" "full" "function" "functions" "fusion" "g" "general" "generated" "get" "global" "go" "goto" "grant" "granted" "greatest" "group" "grouping" "groups" "handler" "having" "header" "hex" "hierarchy" "hold" "hour" "id" "identity" "if" "ignore" "ilike" "immediate" "immediately" "immutable" "implementation" "implicit" "import" "in" "include" "including" "increment" "indent" "index" "indexes" "indicator" "inherit" "inherits" "initially" "inline" "inner" "inout" "input" "insensitive" "insert" "instance" "instantiable" "instead" "int" "integer" "integrity" "intersect" "intersection" "interval" "into" "invoker" "is" "isnull" "isolation" "join" "k" "key" "key_member" "key_type" "label" "lag" "language" "large" "last" "last_value" "lateral" "lead" "leading" "leakproof" "least" "left" "length" "level" "library" "like" "like_regex" "limit" "link" "listen" "ln" "load" "local" "localtime" "localtimestamp" "location" "locator" "lock" "locked" "logged" "lower" "m" "map" "mapping" "match" "matched" "materialized" "max" "maxvalue" "max_cardinality" "member" "merge" "message_length" "message_octet_length" "message_text" "method" "min" "minute" "minvalue" "mod" "mode" "modifies" "module" "month" "more" "move" "multiset" "mumps" "name" "names" "namespace" "national" "natural" "nchar" "nclob" "nesting" "new" "next" "nfc" "nfd" "nfkc" "nfkd" "nil" "no" "none" "normalize" "normalized" "not" "nothing" "notify" "notnull" "nowait" "nth_value" "ntile" "null" "nullable" "nullif" "nulls" "number" "numeric" "object" "occurrences_regex" "octets" "octet_length" "of" "off" "offset" "oids" "old" "on" "only" "open" "operator" "option" "options" "or" "order" "ordering" "ordinality" "others" "out" "outer" "output" "over" "overlaps" "overlay" "overriding" "owned" "owner" "p" "pad" "parallel" "parameter" "parameter_mode" "parameter_name" "parameter_ordinal_position" "parameter_specific_catalog" "parameter_specific_name" "parameter_specific_schema" "parser" "partial" "partition" "pascal" "passing" "passthrough" "password" "path" "percent" "percentile_cont" "percentile_disc" "percent_rank" "period" "permission" "placing" "plans" "pli" "policy" "portion" "position" "position_regex" "power" "precedes" "preceding" "precision" "prepare" "prepared" "preserve" "primary" "prior" "privileges" "procedural" "procedure" "procedures" "program" "public" "publication" "quote" "range" "rank" "read" "reads" "real" "reassign" "recheck" "recovery" "recursive" "ref" "references" "referencing" "refresh" "regr_avgx" "regr_avgy" "regr_count" "regr_intercept" "regr_r2" "regr_slope" "regr_sxx" "regr_sxy" "regr_syy" "reindex" "relative" "release" "rename" "repeatable" "replace" "replica" "requiring" "reset" "respect" "restart" "restore" "restrict" "result" "return" "returned_cardinality" "returned_length" "returned_octet_length" "returned_sqlstate" "returning" "returns" "revoke" "right" "role" "rollback" "rollup" "routine" "routines" "routine_catalog" "routine_name" "routine_schema" "row" "rows" "row_count" "row_number" "rule" "savepoint" "scale" "schema" "schemas" "schema_name" "scope" "scope_catalog" "scope_name" "scope_schema" "scroll" "search" "second" "section" "security" "select" "selective" "self" "sensitive" "sequence" "sequences" "serializable" "server" "server_name" "session" "session_user" "set" "setof" "sets" "share" "show" "similar" "simple" "size" "skip" "smallint" "snapshot" "some" "source" "space" "specific" "specifictype" "specific_name" "sql" "sqlcode" "sqlerror" "sqlexception" "sqlstate" "sqlwarning" "sqrt" "stable" "standalone" "start" "state" "statement" "static" "statistics" "stddev_pop" "stddev_samp" "stdin" "stdout" "storage" "strict" "strip" "structure" "style" "subclass_origin" "submultiset" "subscription" "substring" "substring_regex" "succeeds" "sum" "symmetric" "sysid" "system" "system_time" "system_user" "t" "table" "tables" "tablesample" "tablespace" "table_name" "temp" "template" "temporary" "text" "then" "ties" "time" "timestamp" "timezone_hour" "timezone_minute" "to" "token" "top_level_count" "trailing" "transaction" "transactions_committed" "transactions_rolled_back" "transaction_active" "transform" "transforms" "translate" "translate_regex" "translation" "treat" "trigger" "trigger_catalog" "trigger_name" "trigger_schema" "trim" "trim_array" "true" "truncate" "trusted" "type" "types" "uescape" "unbounded" "uncommitted" "under" "unencrypted" "union" "unique" "unknown" "unlink" "unlisten" "unlogged" "unnamed" "unnest" "until" "untyped" "update" "upper" "uri" "usage" "user" "user_defined_type_catalog" "user_defined_type_code" "user_defined_type_name" "user_defined_type_schema" "using" "vacuum" "valid" "validate" "validator" "value" "values" "value_of" "varbinary" "varchar" "variadic" "varying" "var_pop" "var_samp" "verbose" "version" "versioning" "view" "views" "volatile" "when" "whenever" "where" "whitespace" "width_bucket" "window" "with" "within" "without" "work" "wrapper" "write" "xml" "xmlagg" "xmlattributes" "xmlbinary" "xmlcast" "xmlcomment" "xmlconcat" "xmldeclaration" "xmldocument" "xmlelement" "xmlexists" "xmlforest" "xmliterate" "xmlnamespaces" "xmlparse" "xmlpi" "xmlquery" "xmlroot" "xmlschema" "xmlserialize" "xmltable" "xmltext" "xmlvalidate" "year" "yes" "zone")) ;;; Company backend (cl-defun company-postgresql/candidates (prefix conn) (-filter (apply-partially #'s-starts-with? prefix) (append (-map (lambda (s) (propertize s 'company-postgresql-annotation "table")) (-map (lambda (s) (propertize s 'company-postgresql-annotation (format "%s.%s %s" (get-text-property 0 'table-name s) s (-> (get-text-property 0 'data-type s) (->string) (upcase))))) (company-sql/list-columns conn)) (-map (lambda (s) (propertize s 'company-postgresql-annotation "keyword")) company-postgresql/keywords))))) (defun company-postgresql (command &optional arg &rest _) (interactive (list 'interactive)) (cl-case command (interactive (company-begin-backend 'company-postgresql)) (init (company-sql/connect)) (prefix (company-grab-symbol)) (annotation (get-text-property 0 'company-postgresql-annotation arg)) (candidates (company-postgresql/candidates arg (company-sql/connect))) (duplicates t) (ignore-case t))) ;;; org-babel company sql (defvar-local org-company-sql/connections ()) (defun org-company-sql/connect (conn-params) (or (alist-get-equal conn-params org-company-sql/connections) (let ((conn (apply 'emacsql-psql conn-params))) (add-to-list 'org-company-sql/connections (cons conn-params conn)) conn))) (defun org-company-sql/in-sql-source-block-p () (let ((org-elt (org-element-at-point))) (and (eq 'src-block (car org-elt)) (equal "sql" (plist-get (cadr org-elt) :language))))) (defun org-company-sql/parse-cmdline (cmdline) (let* ((lexed (s-split (rx (one-or-more blank)) cmdline)) (go (lambda (state tokens) (if (null tokens) () (let ((token (car tokens)) (tokens (cdr tokens))) (if (null state) (if (s-starts-with? "-" token) (funcall go token tokens) (cons token (funcall go state tokens))) (cons (cons state token) ; ("-h" . "localhost") (funcall go nil tokens))))))) (opts (funcall go nil lexed))) opts)) (defun org-company-sql/source-block-conn-params () (let* ((block-info (org-babel-get-src-block-info)) (params (caddr block-info)) (cmdline (alist-get :cmdline params)) (parsed (org-company-sql/parse-cmdline cmdline)) (opts (-filter #'listp parsed)) (positional (-filter #'stringp parsed)) (host (alist-get-equal "-h" opts)) (port (or (alist-get-equal "-p" opts) "5432")) (dbname (or (alist-get-equal "-d" opts) (car positional))) (username (or (alist-get-equal "-U" opts) (cadr positional)))) (list dbname :hostname host :username username :port port))) (defun org-company-sql/connection-for-source-block () (org-company-sql/connect (org-company-sql/source-block-conn-params))) (defun company-ob-postgresql (command &optional arg &rest _) (interactive (list 'interactive)) (cl-case command (interactive (company-begin-backend 'company-ob-postgresql)) (prefix (and (org-company-sql/in-sql-source-block-p) (company-grab-symbol))) (annotation (get-text-property 0 'company-postgresql-annotation arg)) (candidates (company-postgresql/candidates arg (org-company-sql/connection-for-source-block))) (duplicates t) (ignore-case t))) ;;; (provide 'company-sql)