jhg: src/org/tmatesoft/hg/internal/StoragePathHelper.java annotate

annotate src/org/tmatesoft/hg/internal/StoragePathHelper.java @ 158:b413b16d10a5

Integer offsets and file length explictly, rather than casts throughout code. Inflater may benefit from total length hint, but shall calculate it by its own if needed

author	Artem Tikhomirov <tikhomirov.artem@gmail.com>
date	Wed, 09 Mar 2011 13:16:37 +0100
parents	bb1d02f9eff6
children	a415fe296a50

rev	line source
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	1 /*
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	2 * Copyright (c) 2011 TMate Software Ltd
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	3 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	4 * This program is free software; you can redistribute it and/or modify
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	5 * it under the terms of the GNU General Public License as published by
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	6 * the Free Software Foundation; version 2 of the License.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	7 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	8 * This program is distributed in the hope that it will be useful,
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	12 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	13 * For information on how to redistribute this software under
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	14 * the terms of a license other than GNU General Public License
102 a3a2e5deb320 Updated contact address to support@hg4j.com Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 83 diff changeset	15 * contact TMate Software at support@hg4j.com
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	16 */
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	17 package org.tmatesoft.hg.internal;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	18
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	19 import java.util.Arrays;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	20 import java.util.TreeSet;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	21
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	22 import org.tmatesoft.hg.util.PathRewrite;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	23
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	24 /**
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	25 * @see http://mercurial.selenic.com/wiki/CaseFoldingPlan
80 4222b04f34ee Follow history of a file Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 74 diff changeset	26 * @see http://mercurial.selenic.com/wiki/fncacheRepoFormat
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	27 *
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	28 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	29 * @author TMate Software Ltd.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	30 */
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	31 class StoragePathHelper implements PathRewrite {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	32
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	33 private final boolean store;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	34 private final boolean fncache;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	35 private final boolean dotencode;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	36
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	37 public StoragePathHelper(boolean isStore, boolean isFncache, boolean isDotencode) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	38 store = isStore;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	39 fncache = isFncache;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	40 dotencode = isDotencode;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	41 }
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	42
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	43 // FIXME document what path argument is, whether it includes .i or .d, and whether it's 'normalized' (slashes) or not.
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	44 // since .hg/store keeps both .i files and files without extension (e.g. fncache), guees, for data == false
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	45 // we shall assume path has extension
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	46 public String rewrite(String path) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	47 final String STR_STORE = "store/";
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	48 final String STR_DATA = "data/";
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	49 final String STR_DH = "dh/";
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	50 final String reservedChars = "\\:*?\"<>\|";
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	51 char[] hexByte = new char[2];
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	52
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	53 path = path.replace(".hg/", ".hg.hg/").replace(".i/", ".i.hg/").replace(".d/", ".d.hg/");
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	54 StringBuilder sb = new StringBuilder(path.length() << 1);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	55 if (store \|\| fncache) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	56 // encodefilename
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	57 for (int i = 0; i < path.length(); i++) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	58 final char ch = path.charAt(i);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	59 if (ch >= 'a' && ch <= 'z') {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	60 sb.append(ch); // POIRAE
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	61 } else if (ch >= 'A' && ch <= 'Z') {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	62 sb.append('_');
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	63 sb.append(Character.toLowerCase(ch)); // Perhaps, (char) (((int) ch) + 32)? Even better, \|= 0x20?
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	64 } else if (reservedChars.indexOf(ch) != -1) {
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	65 sb.append('~');
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	66 sb.append(toHexByte(ch, hexByte));
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	67 } else if ((ch >= '~' /126/ && ch <= 255) \|\| ch < ' ' /32/) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	68 sb.append('~');
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	69 sb.append(toHexByte(ch, hexByte));
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	70 } else if (ch == '_') {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	71 sb.append('_');
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	72 sb.append('_');
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	73 } else {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	74 sb.append(ch);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	75 }
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	76 }
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	77 // auxencode
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	78 if (fncache) {
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	79 encodeWindowsDeviceNames(sb);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	80 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	81 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	82 final int MAX_PATH_LEN = 120;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	83 if (fncache && (sb.length() + STR_DATA.length() + ".i".length() > MAX_PATH_LEN)) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	84 String digest = new DigestHelper().sha1(STR_DATA, path, ".i").asHexString();
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	85 final int DIR_PREFIX_LEN = 8;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	86 // not sure why (-4) is here. 120 - 40 = up to 80 for path with ext. dh/ + ext(.i) = 3+2
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	87 final int MAX_DIR_PREFIX = 8 * (DIR_PREFIX_LEN + 1) - 4;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	88 sb = new StringBuilder(MAX_PATH_LEN);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	89 for (int i = 0; i < path.length(); i++) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	90 final char ch = path.charAt(i);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	91 if (ch >= 'a' && ch <= 'z') {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	92 sb.append(ch);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	93 } else if (ch >= 'A' && ch <= 'Z') {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	94 sb.append((char) (ch \| 0x20)); // lowercase
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	95 } else if (reservedChars.indexOf(ch) != -1) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	96 sb.append('~');
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	97 sb.append(toHexByte(ch, hexByte));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	98 } else if ((ch >= '~' /126/ && ch <= 255) \|\| ch < ' ' /32/) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	99 sb.append('~');
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	100 sb.append(toHexByte(ch, hexByte));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	101 } else {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	102 sb.append(ch);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	103 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	104 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	105 encodeWindowsDeviceNames(sb);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	106 int fnameStart = sb.lastIndexOf("/"); // since we rewrite file names, it never ends with slash (for dirs, I'd pass length-2);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	107 StringBuilder completeHashName = new StringBuilder(MAX_PATH_LEN);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	108 completeHashName.append(STR_STORE);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	109 completeHashName.append(STR_DH);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	110 if (fnameStart == -1) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	111 // no dirs, just long filename
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	112 sb.setLength(MAX_PATH_LEN - 40 /digest.length()/ - STR_DH.length() - ".i".length());
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	113 completeHashName.append(sb);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	114 } else {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	115 StringBuilder sb2 = new StringBuilder(MAX_PATH_LEN);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	116 int x = 0;
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	117 do {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	118 int i = sb.indexOf("/", x);
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	119 final int sb2Len = sb2.length();
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	120 if (i-x <= DIR_PREFIX_LEN) { // a b c d e f g h /
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	121 sb2.append(sb, x, i + 1); // with slash
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	122 } else {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	123 sb2.append(sb, x, x + DIR_PREFIX_LEN);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	124 // may unexpectedly end with bad character
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	125 final int last = sb2.length()-1;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	126 char lastChar = sb2.charAt(last);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	127 assert lastChar == sb.charAt(x + DIR_PREFIX_LEN - 1);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	128 if (lastChar == '.' \|\| lastChar == ' ') {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	129 sb2.setCharAt(last, '_');
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	130 }
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	131 sb2.append('/');
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	132 }
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	133 if (sb2.length()-1 > MAX_DIR_PREFIX) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	134 sb2.setLength(sb2Len); // strip off last segment, it's too much
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	135 break;
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	136 }
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	137 x = i+1;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	138 } while (x < fnameStart);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	139 assert sb2.charAt(sb2.length() - 1) == '/';
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	140 int left = MAX_PATH_LEN - sb2.length() - 40 /digest.length()/ - STR_DH.length() - ".i".length();
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	141 assert left >= 0;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	142 fnameStart++; // move from / to actual name
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	143 sb2.append(sb, fnameStart, fnameStart + left > sb.length() ? sb.length() : fnameStart+left);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	144 completeHashName.append(sb2);
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	145 }
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	146 completeHashName.append(digest);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	147 sb = completeHashName;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	148 } else if (store) {
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	149 sb.insert(0, STR_STORE + STR_DATA);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	150 }
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	151 sb.append(".i");
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	152 return sb.toString();
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	153 }
83 a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	154
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	155 private void encodeWindowsDeviceNames(StringBuilder sb) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	156 char[] hexByte = new char[2];
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	157 int x = 0; // last segment start
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	158 final TreeSet<String> windowsReservedFilenames = new TreeSet<String>();
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	159 windowsReservedFilenames.addAll(Arrays.asList("con prn aux nul com1 com2 com3 com4 com5 com6 com7 com8 com9 lpt1 lpt2 lpt3 lpt4 lpt5 lpt6 lpt7 lpt8 lpt9".split(" ")));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	160 do {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	161 int i = sb.indexOf("/", x);
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	162 if (i == -1) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	163 i = sb.length();
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	164 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	165 // windows reserved filenames are at least of length 3
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	166 if (i - x >= 3) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	167 boolean found = false;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	168 if (i-x == 3 \|\| i-x == 4) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	169 found = windowsReservedFilenames.contains(sb.subSequence(x, i));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	170 } else if (sb.charAt(x+3) == '.') { // implicit i-x > 3
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	171 found = windowsReservedFilenames.contains(sb.subSequence(x, x+3));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	172 } else if (i-x > 4 && sb.charAt(x+4) == '.') {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	173 found = windowsReservedFilenames.contains(sb.subSequence(x, x+4));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	174 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	175 if (found) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	176 sb.insert(x+3, toHexByte(sb.charAt(x+2), hexByte));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	177 sb.setCharAt(x+2, '~');
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	178 i += 2;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	179 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	180 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	181 if (dotencode && (sb.charAt(x) == '.' \|\| sb.charAt(x) == ' ')) {
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	182 sb.insert(x+1, toHexByte(sb.charAt(x), hexByte));
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	183 sb.setCharAt(x, '~'); // setChar after charAt/insert to get ~2e, not ~7e for '.'
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	184 i += 2;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	185 }
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	186 x = i+1;
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	187 } while (x < sb.length());
a5275143664c Complete path hash calculation of fncache requirement Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: 80 diff changeset	188 }
74 6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	189
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	190 private static char[] toHexByte(int ch, char[] buf) {
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	191 assert buf.length > 1;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	192 final String hexDigits = "0123456789abcdef";
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	193 buf[0] = hexDigits.charAt((ch & 0x00F0) >>> 4);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	194 buf[1] = hexDigits.charAt(ch & 0x0F);
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	195 return buf;
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	196 }
6f1b88693d48 Complete refactoring to org.tmatesoft Artem Tikhomirov <tikhomirov.artem@gmail.com> parents: diff changeset	197 }

Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/StoragePathHelper.java @ 158:b413b16d10a5