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Diffstat (limited to 'users/aspen/emacs.d/company-sql.el')
| -rw-r--r-- | users/aspen/emacs.d/company-sql.el | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/users/aspen/emacs.d/company-sql.el b/users/aspen/emacs.d/company-sql.el new file mode 100644 index 0000000000..e623aa2de1 --- /dev/null +++ b/users/aspen/emacs.d/company-sql.el @@ -0,0 +1,299 @@ +;;; 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) |