pgtoolkit/pgdiff.py
author Radek Brich <radek.brich@devl.cz>
Sun, 10 Mar 2013 16:14:53 +0100
changeset 76 3a41b351b122
parent 64 687e18e5ca93
child 83 515fadd3d286
permissions -rw-r--r--
Port pgconsole to Python3 + GTK3.
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# -*- coding: utf-8 -*-
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#
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# PgDiff - capture differences of database metadata
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#
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# Depends on PgBrowser
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#
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# Copyright (c) 2011  Radek Brich <radek.brich@devl.cz>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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from pgtoolkit.highlight import *
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import re
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import difflib
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class PgDiffError(Exception):
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    pass
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class DiffBase:
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    COLORS = {
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        '+' : BOLD | GREEN,
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        '-' : BOLD | RED,
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        '*' : BOLD | YELLOW,
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    }
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    COMMANDS = {
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        '+' : 'CREATE',
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        '-' : 'DROP',
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        '*' : 'ALTER',
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    }
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    def __init__(self):
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        self.changes = None
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    def format(self):
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        out = ['  ' * self.level]
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        out.append(highlight(1, self.COLORS[self.change]))
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        out.append(self.change)
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        out += [' ', self.type, ' ', self.name, highlight(0)]
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        if self.changes:
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            out += [highlight(1, WHITE), ' (', self._formatchanges(), ')', highlight(0)]
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        return ''.join(out)
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    def _formatnotnull(self, notnull):
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        if notnull:
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            return 'NOT NULL'
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        else:
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            return None
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    def _formatchanges(self):
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        res = []
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        for type, a, b in self.changes:
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            if type == 'notnull':
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                type = ''
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                a = self._formatnotnull(a)
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                b = self._formatnotnull(b)
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            if a and b:
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                s = ''.join(['Changed ', type, ' from ',
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                    highlight(1,15), a, highlight(0), ' to ',
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                    highlight(1,15), b, highlight(0), '.'])
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            elif a and not b:
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                l = ['Removed ']
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                if type:
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                    l += [type, ' ']
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                l += [highlight(1,15), a, highlight(0), '.']
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                s = ''.join(l)
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            elif b and not a:
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                l = ['Added ']
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                if type:
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                    l += [type, ' ']
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                l += [highlight(1,15), b, highlight(0), '.']
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                s = ''.join(l)
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            res.append(s)
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        return ' '.join(res)
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    def format_patch(self):
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        if self.change == '*' and self.type in ('schema', 'table'):
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            return None
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        return ['%s %s %s;' % (self.COMMANDS[self.change], self.type.upper(), self.name)]
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class DiffSchema(DiffBase):
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    def __init__(self, change, schema):
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        DiffBase.__init__(self)
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        self.level = 0
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        self.type = 'schema'
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        self.change = change
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        self.schema = schema
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        self.name = schema
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class DiffTable(DiffBase):
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    def __init__(self, change, schema, table):
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        DiffBase.__init__(self)
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        self.level = 1
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        self.type = 'table'
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        self.change = change
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        self.schema = schema
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        self.table = table
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        self.name = table
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class DiffArgument(DiffBase):
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    def __init__(self, change, schema, function, argument):
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        DiffBase.__init__(self)
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        self.level = 2
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        self.type = 'argument'
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        self.change = change
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        self.schema = schema
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        self.function = function
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        self.argument = argument
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        self.name = argument
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class DiffFunction(DiffBase):
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    def __init__(self, change, schema, function, show_body_diff=False):
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        DiffBase.__init__(self)
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        self.level = 1
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        self.type = 'function'
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        self.change = change
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        self.schema = schema
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        self.function = function
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        self.name = function
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        self.show_body_diff = show_body_diff
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    def _formatchanges(self):
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        res = []
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        for x in self.changes:
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            type, a, b = x
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            if type == 'source':
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                if self.show_body_diff:
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                    lines = ['Source differs:\n']
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                    for line in difflib.unified_diff(a, b, lineterm=''):
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                        if line[:3] in ('---', '+++'):
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                            continue
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                        color = {' ': WHITE, '-': YELLOW, '+': GREEN, '@': WHITE|BOLD}[line[0]]
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                        lines.append(highlight(1, color) + line + highlight(0) + '\n')
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                    res.append(''.join(lines))
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                else:
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                    res.append('Source differs.')
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            else:
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                res.append(''.join(['Changed ', type, ' from ',
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                    highlight(1,15), a, highlight(0), ' to ',
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                    highlight(1,15), b, highlight(0), '.']))
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        return ' '.join(res)
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0
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class DiffColumn(DiffBase):
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    ALTER_COMMANDS = {
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        '+' : 'ADD',
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        '-' : 'DROP',
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        '*' : 'ALTER',
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    }
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    def __init__(self, change, schema, table, column, columntype, columndefault, columnnotnull, changes=None):
0
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        DiffBase.__init__(self)
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        self.level = 2
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        self.type = 'column'
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        self.change = change
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        self.schema = schema
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        self.table = table
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        self.column = column
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        self.columntype = columntype
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        self.columndefault = columndefault
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        self.columnnotnull = columnnotnull
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        self.name = column
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        self.changes = changes
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    def format_patch(self):
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        alter_table = 'ALTER TABLE %s.%s %s COLUMN %s' % (
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            self.schema,
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            self.table,
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            self.ALTER_COMMANDS[self.change],
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            self.name,
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        )
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        out = []
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        if self.change == '-':
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            out.append('%s;' % alter_table);
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        if self.change == '+':
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            notnull = ''
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            if self.columnnotnull:
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                notnull = ' NOT NULL'
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            default = ''
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            if self.columndefault:
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                default = ' DEFAULT %s' % self.columndefault
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            out.append('%s %s%s%s;'
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                % (alter_table, self.columntype, notnull, default));
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        if self.change == '*':
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            for type, a, b in self.changes:
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                if type == 'type':
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                    out.append('%s TYPE %s;' % (alter_table, b))
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                if type == 'notnull':
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                    if a and not b:
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                        out.append('%s DROP NOT NULL;' % alter_table)
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                    if not a and b:
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                        out.append('%s SET NOT NULL;' % alter_table)
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                if type == 'default':
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                    if b:
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                        out.append('%s SET DEFAULT %s;' % (alter_table, b))
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   224
                    else:
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                        out.append('%s DROP DEFAULT;' % alter_table)
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        return out
0
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class DiffConstraint(DiffBase):
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    def __init__(self, change, schema, table, constraint, definition, changes=None):
0
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        DiffBase.__init__(self)
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        self.level = 2
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        self.type = 'constraint'
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        self.change = change
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        self.schema = schema
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        self.table = table
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        self.constraint = constraint
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        self.name = constraint
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        self.definition = definition
0
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        self.changes = changes
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    def format_patch(self):
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   243
        q_alter = 'ALTER TABLE %s.%s' % (self.schema, self.table)
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   244
        q_drop = '%s DROP CONSTRAINT %s;' % (q_alter, self.constraint)
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   245
        q_add = '%s ADD CONSTRAINT %s %s;' % (q_alter, self.constraint, self.definition)
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   246
        if self.change == '*':
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   247
            out = [q_drop, q_add]
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   248
        if self.change == '+':
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   249
            out = [q_add]
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   250
        if self.change == '-':
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   251
            out = [q_drop]
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   252
        return out
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   253
0
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class PgDiff:
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    def __init__(self, srcbrowser=None, dstbrowser=None):
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        self.allowcolor = False
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   258
        self.src = srcbrowser
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   259
        self.dst = dstbrowser
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        self.include_schemas = set()  # if not empty, consider only these schemas for diff
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   261
        self.exclude_schemas = set()  # exclude these schemas from diff
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   262
        self.include_tables = set()
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diff changeset
   263
        self.exclude_tables = set()
63
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   264
        self.function_regex = re.compile(r"")
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   265
        self.function_body_diff = False
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   266
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   267
    def _test_schema(self, schema):
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   268
        if self.include_schemas and schema not in self.include_schemas:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   269
            return False
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   270
        if schema in self.exclude_schemas:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   271
            return False
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   272
        return True
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   273
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   274
    def _test_table(self, table):
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   275
        if self.include_tables and table not in self.include_tables:
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   276
            return False
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   277
        if table in self.exclude_tables:
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   278
            return False
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   279
        return True
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   280
63
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   281
    def _test_function(self, function):
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   282
        return bool(self.function_regex.match(function))
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   283
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   284
    def _diff_names(self, src, dst):
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   285
        for x in src:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   286
            if x in dst:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   287
                yield ('*', x)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   288
            else:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   289
                yield ('-', x)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   290
        for x in dst:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   291
            if x not in src:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   292
                yield ('+', x)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   293
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   294
    def _compare_columns(self, a, b):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   295
        diff = []
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   296
        if a.type != b.type:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   297
            diff.append(('type', a.type, b.type))
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   298
        if a.notnull != b.notnull:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   299
            diff.append(('notnull', a.notnull, b.notnull))
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   300
        if a.default != b.default:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   301
            diff.append(('default', a.default, b.default))
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   302
        return diff
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   303
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   304
    def _compare_constraints(self, a, b):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   305
        diff = []
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   306
        if a.type != b.type:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   307
            diff.append(('type', a.type, b.type))
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   308
        if a.definition != b.definition:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   309
            diff.append(('definition', a.definition, b.definition))
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   310
        return diff
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   311
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   312
    def _compare_functions(self, a, b):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   313
        diff = []
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   314
        if a.result != b.result:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   315
            diff.append(('result', a.result, b.result))
63
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   316
        # function source may differ in newlines (\n vs \r\n)
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   317
        # split lines before comparison, so that these differencies are ignored
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   318
        a_source = a.source.splitlines()
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   319
        b_source = b.source.splitlines()
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   320
        if a_source != b_source:
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   321
            diff.append(('source', a_source, b_source))
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   322
        return diff
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   323
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   324
    def _compare_arguments(self, a, b):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   325
        diff = []
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   326
        if a.type != b.type:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   327
            diff.append(('type', a.type, b.type))
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   328
        if a.mode != b.mode:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   329
            diff.append(('mode', a.mode, b.mode))
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   330
        if a.default != b.default:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   331
            diff.append(('default', a.default, b.default))
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   332
        return diff
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   333
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   334
    def _diff_columns(self, schema, table, src_columns, dst_columns):
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   335
        for nd in self._diff_names(src_columns, dst_columns):
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   336
            if nd[1] in dst_columns:
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   337
                dst_type = dst_columns[nd[1]].type
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   338
                dst_default = dst_columns[nd[1]].default
60
bb6b20106ff5 PgDiff: Update patch for table column changed.
Radek Brich <radek.brich@devl.cz>
parents: 59
diff changeset
   339
                dst_notnull = dst_columns[nd[1]].notnull
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   340
            else:
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   341
                dst_type = None
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   342
                dst_default = None
60
bb6b20106ff5 PgDiff: Update patch for table column changed.
Radek Brich <radek.brich@devl.cz>
parents: 59
diff changeset
   343
                dst_notnull = None
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   344
            cdo = DiffColumn(change=nd[0], schema=schema, table=table, column=nd[1],
60
bb6b20106ff5 PgDiff: Update patch for table column changed.
Radek Brich <radek.brich@devl.cz>
parents: 59
diff changeset
   345
                columntype=dst_type, columndefault=dst_default, columnnotnull=dst_notnull)
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   346
            if nd[0] == '*':
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   347
                a = src_columns[nd[1]]
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   348
                b = dst_columns[nd[1]]
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   349
                cdo.changes = self._compare_columns(a, b)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   350
                if cdo.changes:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   351
                    yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   352
            else:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   353
                yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   354
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   355
    def _diff_constraints(self, schema, table, src_constraints, dst_constraints):
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   356
        for nd in self._diff_names(src_constraints, dst_constraints):
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   357
            if nd[1] in dst_constraints:
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   358
                dst_definition = dst_constraints[nd[1]].definition
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   359
            else:
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   360
                dst_definition = None
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   361
            cdo = DiffConstraint(change=nd[0], schema=schema, table=table, constraint=nd[1],
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   362
                definition=dst_definition)
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   363
            if nd[0] == '*':
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   364
                a = src_constraints[nd[1]]
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   365
                b = dst_constraints[nd[1]]
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   366
                cdo.changes = self._compare_constraints(a, b)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   367
                if cdo.changes:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   368
                    yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   369
            else:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   370
                yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   371
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   372
    def _diff_tables(self, schema, src_tables, dst_tables):
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   373
        for nd in self._diff_names(src_tables, dst_tables):
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   374
            if not self._test_table(nd[1]):
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   375
                continue
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   376
            tdo = DiffTable(change=nd[0], schema=schema, table=nd[1])
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   377
            if nd[0] == '*':
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   378
                # columns
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   379
                src_columns = src_tables[nd[1]].columns
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   380
                dst_columns = dst_tables[nd[1]].columns
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   381
                for cdo in self._diff_columns(schema, nd[1], src_columns, dst_columns):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   382
                    if tdo:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   383
                        yield tdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   384
                        tdo = None
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   385
                    yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   386
                # constraints
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   387
                src_constraints = src_tables[nd[1]].constraints
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   388
                dst_constraints = dst_tables[nd[1]].constraints
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   389
                for cdo in self._diff_constraints(schema, nd[1], src_constraints, dst_constraints):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   390
                    if tdo:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   391
                        yield tdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   392
                        tdo = None
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   393
                    yield cdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   394
            else:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   395
                yield tdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   396
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   397
    def _diff_arguments(self, schema, function, src_args, dst_args):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   398
        for nd in self._diff_names(src_args, dst_args):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   399
            ado = DiffArgument(change=nd[0], schema=schema, function=function, argument=nd[1])
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   400
            if nd[0] == '*':
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   401
                a = src_args[nd[1]]
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   402
                b = dst_args[nd[1]]
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   403
                ado.changes = self._compare_arguments(a, b)
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   404
                if ado.changes:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   405
                    yield ado
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   406
            else:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   407
                yield ado
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   408
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   409
    def _diff_functions(self, schema, src_functions, dst_functions):
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   410
        for nd in self._diff_names(src_functions, dst_functions):
63
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   411
            if not self._test_function(nd[1]):
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   412
                continue
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   413
            fdo = DiffFunction(change=nd[0], schema=schema, function=nd[1], show_body_diff=self.function_body_diff)
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   414
            if nd[0] == '*':
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   415
                # compare function body and result
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   416
                a = src_functions[nd[1]]
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   417
                b = dst_functions[nd[1]]
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   418
                fdo.changes = self._compare_functions(a, b)
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   419
                if fdo.changes:
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   420
                    yield fdo
59
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   421
                    fdo = None
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   422
                # arguments
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   423
                src_args = src_functions[nd[1]].arguments
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   424
                dst_args = dst_functions[nd[1]].arguments
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   425
                for ado in self._diff_arguments(schema, nd[1], src_args, dst_args):
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   426
                    if fdo:
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   427
                        yield fdo
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   428
                        fdo = None
65efd0c6919f PgBrowser: add function arguments as another level in hierarchy. PgDiff: compare function arguments one by one.
Radek Brich <radek.brich@devl.cz>
parents: 58
diff changeset
   429
                    yield ado
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   430
            else:
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   431
                yield fdo
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   432
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   433
    def iter_diff(self):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   434
        '''Return diff between src and dst database schema.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   435
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   436
        Yields one line at the time. Each line is in form of object
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   437
        iherited from DiffBase. This object contains all information
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   438
        about changes. See format() method.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   439
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   440
        '''
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   441
        src_schemas = self.src.schemas
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   442
        dst_schemas = self.dst.schemas
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   443
        src = [x.name for x in src_schemas.values() if not x.system and self._test_schema(x.name)]
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   444
        dst = [x.name for x in dst_schemas.values() if not x.system and self._test_schema(x.name)]
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   445
        for nd in self._diff_names(src, dst):
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   446
            sdo = DiffSchema(change=nd[0], schema=nd[1])
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   447
            if nd[0] == '*':
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   448
                # tables
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   449
                src_tables = src_schemas[nd[1]].tables
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   450
                dst_tables = dst_schemas[nd[1]].tables
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   451
                for tdo in self._diff_tables(nd[1], src_tables, dst_tables):
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   452
                    if sdo:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   453
                        yield sdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   454
                        sdo = None
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   455
                    yield tdo
58
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   456
                # functions
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   457
                src_functions = src_schemas[nd[1]].functions
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   458
                dst_functions = dst_schemas[nd[1]].functions
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   459
                for fdo in self._diff_functions(nd[1], src_functions, dst_functions):
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   460
                    if sdo:
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   461
                        yield sdo
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   462
                        sdo = None
0bcc13460dae PgBrowser: Add functions. PgDiff: Compare functions.
Radek Brich <radek.brich@devl.cz>
parents: 53
diff changeset
   463
                    yield fdo
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   464
            else:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   465
                yield sdo
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   466
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   467
    def print_diff(self):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   468
        '''Print diff between src and dst database schema.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   469
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   470
        The output is in human readable form.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   471
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   472
        Set allowcolor=True of PgDiff instance to get colored output.
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   473
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   474
        '''
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   475
        for ln in self.iter_diff():
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   476
            print(ln.format())
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   477
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   478
    def print_patch(self):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   479
        '''Print patch for updating from src schema to dst schema.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   480
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   481
        Supports table drop, add, column drop, add and following
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   482
        changes of columns:
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   483
          - type
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   484
          - set/remove not null
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   485
          - default value
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   486
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   487
        This is experimental, not tested very much.
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   488
        Do not use without checking the commands.
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   489
        Even if it works as intended, it can cause table lock ups
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   490
        and/or loss of data. You have been warned.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   491
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   492
        '''
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   493
        for ln in self.iter_diff():
47
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   494
            patch = ln.format_patch()
bb8c729ae6ce PgDiff: add partial support for SQL patch.
Radek Brich <radek.brich@devl.cz>
parents: 9
diff changeset
   495
            if patch:
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   496
                print('\n'.join(patch))
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   497
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   498
    def filter_schemas(self, include=[], exclude=[]):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   499
        '''Modify list of schemas which are used for computing diff.
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   500
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   501
        include (list) -- if not empty, consider only these schemas for diff
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   502
        exclude (list) -- exclude these schemas from diff
53
4a049a5af657 Update PgDiff: Support SQL patch for constraints. Fix changes of column default value.
Radek Brich <radek.brich@devl.cz>
parents: 47
diff changeset
   503
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   504
        Order: include, exclude
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   505
        include=[] means include everything
61
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   506
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   507
        Raises:
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   508
            PgDiffError: when schema from include list is not found in src db
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   509
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   510
        '''
61
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   511
        for schema in include:
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   512
            self._check_schema_exist(schema)
0
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   513
        self.include_schemas.clear()
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   514
        self.include_schemas.update(include)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   515
        self.exclude_schemas.clear()
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   516
        self.exclude_schemas.update(exclude)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   517
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   518
    def filter_tables(self, include=[], exclude=[]):
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   519
        self.include_tables.clear()
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   520
        self.include_tables.update(include)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   521
        self.exclude_tables.clear()
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   522
        self.exclude_tables.update(exclude)
eaae9539e910 Postgres tools.
Radek Brich <radek.brich@devl.cz>
parents:
diff changeset
   523
63
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   524
    def filter_functions(self, regex=''):
8c7f0a51ba50 PgDiff, schemadiff.py: Add function filter. Add --body parameter to diff function source.
Radek Brich <radek.brich@devl.cz>
parents: 61
diff changeset
   525
        self.function_regex = re.compile(regex)
61
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   526
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   527
    def _check_schema_exist(self, schema):
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   528
        if not schema in self.src.schemas:
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   529
            raise PgDiffError('Schema "%s" not found in source database.' % schema)
703bba757605 PgDiff: check schema existance.
Radek Brich <radek.brich@devl.cz>
parents: 60
diff changeset
   530