127 lines
3.7 KiB
Tcl
127 lines
3.7 KiB
Tcl
#!/usr/bin/tclsh
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#
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# This script constructs the "sqlite3.h" header file from the following
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# sources:
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#
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# 1) The src/sqlite.h.in source file. This is the template for sqlite3.h.
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# 2) The VERSION file containing the current SQLite version number.
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# 3) The manifest file from the fossil SCM. This gives use the date.
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# 4) The manifest.uuid file from the fossil SCM. This gives the SHA1 hash.
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#
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# Run this script by specifying the root directory of the source tree
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# on the command-line.
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#
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# This script performs processing on src/sqlite.h.in. It:
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#
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# 1) Adds SQLITE_EXTERN in front of the declaration of global variables,
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# 2) Adds SQLITE_API in front of the declaration of API functions,
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# 3) Replaces the string --VERS-- with the current library version,
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# formatted as a string (e.g. "3.6.17"), and
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# 4) Replaces the string --VERSION-NUMBER-- with current library version,
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# formatted as an integer (e.g. "3006017").
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# 5) Replaces the string --SOURCE-ID-- with the date and time and sha1
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# hash of the fossil-scm manifest for the source tree.
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#
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# This script outputs to stdout.
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#
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# Example usage:
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#
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# tclsh mksqlite3h.tcl ../sqlite >sqlite3.h
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#
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# Get the source tree root directory from the command-line
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#
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set TOP [lindex $argv 0]
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# Get the SQLite version number (ex: 3.6.18) from the $TOP/VERSION file.
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#
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set in [open $TOP/VERSION]
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set zVersion [string trim [read $in]]
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close $in
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set nVersion [eval format "%d%03d%03d" [split $zVersion .]]
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# Get the fossil-scm version number from $TOP/manifest.uuid.
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#
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set in [open $TOP/manifest.uuid]
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set zUuid [string trim [read $in]]
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close $in
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# Get the fossil-scm check-in date from the "D" card of $TOP/manifest.
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#
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set in [open $TOP/manifest]
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set zDate {}
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while {![eof $in]} {
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set line [gets $in]
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if {[regexp {^D (2[-0-9T:]+)} $line all date]} {
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set zDate [string map {T { }} $date]
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break
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}
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}
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close $in
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# Set up patterns for recognizing API declarations.
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#
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set varpattern {^[a-zA-Z][a-zA-Z_0-9 *]+sqlite3_[_a-zA-Z0-9]+(\[|;| =)}
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set declpattern {^ *([a-zA-Z][a-zA-Z_0-9 ]+ \**)(sqlite3_[_a-zA-Z0-9]+)(\(.*)$}
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# Force the output to use unix line endings, even on Windows.
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fconfigure stdout -translation lf
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set filelist [subst {
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$TOP/src/sqlite.h.in
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$TOP/ext/rtree/sqlite3rtree.h
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}]
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# These are the functions that accept a variable number of arguments. They
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# always need to use the "cdecl" calling convention even when another calling
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# convention (e.g. "stcall") is being used for the rest of the library.
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set cdecllist {
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sqlite3_config
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sqlite3_db_config
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sqlite3_log
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sqlite3_mprintf
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sqlite3_snprintf
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sqlite3_test_control
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sqlite3_vtab_config
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}
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# Process the source files.
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#
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foreach file $filelist {
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set in [open $file]
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while {![eof $in]} {
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set line [gets $in]
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# File sqlite3rtree.h contains a line "#include <sqlite3.h>". Omit this
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# line when copying sqlite3rtree.h into sqlite3.h.
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#
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if {[string match {*#include*<sqlite3.h>*} $line]} continue
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regsub -- --VERS-- $line $zVersion line
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regsub -- --VERSION-NUMBER-- $line $nVersion line
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regsub -- --SOURCE-ID-- $line "$zDate $zUuid" line
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if {[regexp $varpattern $line] && ![regexp {^ *typedef} $line]} {
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set line "SQLITE_API $line"
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} else {
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if {[regexp $declpattern $line all rettype funcname rest]} {
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set line SQLITE_API
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append line " " [string trim $rettype]
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if {[string index $rettype end] ne "*"} {
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append line " "
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}
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if {[lsearch -exact $cdecllist $funcname] >= 0} {
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append line SQLITE_CDECL
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} else {
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append line SQLITE_STDCALL
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}
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append line " " $funcname $rest
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}
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}
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puts $line
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}
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close $in
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}
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