#!/usr/bin/tclsh
#
# This script constructs the "sqlite3.h" header file from the following
# sources:
#
# 1) The src/sqlite.h.in source file. This is the template for sqlite3.h.
# 2) The VERSION file containing the current SQLite version number.
# 3) The manifest file from the fossil SCM. This gives use the date.
# 4) The manifest.uuid file from the fossil SCM. This gives the SHA1 hash.
#
# Run this script by specifying the root directory of the source tree
# on the command-line.
#
# This script performs processing on src/sqlite.h.in. It:
#
# 1) Adds SQLITE_EXTERN in front of the declaration of global variables,
# 2) Adds SQLITE_API in front of the declaration of API functions,
# 3) Replaces the string --VERS-- with the current library version,
# formatted as a string (e.g. "3.6.17"), and
# 4) Replaces the string --VERSION-NUMBER-- with current library version,
# formatted as an integer (e.g. "3006017").
# 5) Replaces the string --SOURCE-ID-- with the date and time and sha1
# hash of the fossil-scm manifest for the source tree.
#
# This script outputs to stdout.
#
# Example usage:
#
# tclsh mksqlite3h.tcl ../sqlite >sqlite3.h
#
# Get the source tree root directory from the command-line
#
set TOP [lindex $argv 0]
# Get the SQLite version number (ex: 3.6.18) from the $TOP/VERSION file.
#
set in [open $TOP/VERSION]
set zVersion [string trim [read $in]]
close $in
set nVersion [eval format "%d%03d%03d" [split $zVersion .]]
# Get the fossil-scm version number from $TOP/manifest.uuid.
#
set in [open $TOP/manifest.uuid]
set zUuid [string trim [read $in]]
close $in
# Get the fossil-scm check-in date from the "D" card of $TOP/manifest.
#
set in [open $TOP/manifest]
set zDate {}
while {![eof $in]} {
set line [gets $in]
if {[regexp {^D (2[-0-9T:]+)} $line all date]} {
set zDate [string map {T { }} $date]
break
}
}
close $in
# Set up patterns for recognizing API declarations.
#
set varpattern {^[a-zA-Z][a-zA-Z_0-9 *]+sqlite3_[_a-zA-Z0-9]+(\[|;| =)}
set declpattern {^ *[a-zA-Z][a-zA-Z_0-9 ]+ \**sqlite3_[_a-zA-Z0-9]+\(}
# Process the src/sqlite.h.in ext/rtree/sqlite3rtree.h files.
#
foreach file [list $TOP/src/sqlite.h.in $TOP/ext/rtree/sqlite3rtree.h] {
set in [open $file]
while {![eof $in]} {
set line [gets $in]
# File sqlite3rtree.h contains a line "#include <sqlite3.h>". Omit this
# line when copying sqlite3rtree.h into sqlite3.h.
#
if {[string match {*#include*<sqlite3.h>*} $line]} continue
regsub -- --VERS-- $line $zVersion line
regsub -- --VERSION-NUMBER-- $line $nVersion line
regsub -- --SOURCE-ID-- $line "$zDate $zUuid" line
if {[regexp {define SQLITE_EXTERN extern} $line]} {
puts $line
puts [gets $in]
puts ""
puts "#ifndef SQLITE_API"
puts "# define SQLITE_API"
puts "#endif"
set line ""
}
if {([regexp $varpattern $line] && ![regexp {^ *typedef} $line])
|| ([regexp $declpattern $line])
} {
set line "SQLITE_API $line"
}
puts $line
}
close $in
}