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package net.sf.statsvn.util; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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import net.sf.statcvs.util.LookaheadReader; |
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import net.sf.statsvn.output.SvnConfigurationOptions; |
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public class SvnStartupUtils implements ISvnVersionProcessor { |
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private static final String SVN_VERSION_COMMAND = "svn --version"; |
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public static final String SVN_MINIMUM_VERSION = "1.3.0"; |
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public static final String SVN_MINIMUM_VERSION_DIFF_PER_REV = "1.4.0"; |
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private static final String SVN_VERSION_LINE_PATTERN = ".* [0-9]+\\.[0-9]+\\.[0-9]+.*"; |
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private static final String SVN_VERSION_PATTERN = "[0-9]+\\.[0-9]+\\.[0-9]+"; |
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protected ISvnProcessor processor; |
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36 | 0 | public SvnStartupUtils(ISvnProcessor processor) { |
37 | 0 | this.processor = processor; |
38 | 0 | } |
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40 | 0 | protected ISvnProcessor getProcessor() { |
41 | 0 | return processor; |
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} |
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public synchronized String checkSvnVersionSufficient() throws SvnVersionMismatchException { |
48 | 0 | ProcessUtils pUtils = null; |
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try { |
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51 | 0 | pUtils = ProcessUtils.call(SVN_VERSION_COMMAND); |
52 | 0 | final InputStream istream = pUtils.getInputStream(); |
53 | 0 | final LookaheadReader reader = new LookaheadReader(new InputStreamReader(istream)); |
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55 | 0 | while (reader.hasNextLine()) { |
56 | 0 | final String line = reader.nextLine(); |
57 | 0 | if (line.matches(SVN_VERSION_LINE_PATTERN)) { |
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59 | 0 | final Pattern pRegex = Pattern.compile(SVN_VERSION_PATTERN); |
60 | 0 | final Matcher m = pRegex.matcher(line); |
61 | 0 | if (m.find()) { |
62 | 0 | final String versionString = line.substring(m.start(), m.end()); |
63 | 0 | |
64 | 0 | |
65 | 0 | if (versionString.compareTo(SVN_MINIMUM_VERSION) >= 0) { |
66 | 0 | return versionString; |
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} else { |
68 | 0 | throw new SvnVersionMismatchException(versionString, SVN_MINIMUM_VERSION); |
69 | 0 | } |
70 | 0 | } |
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} |
72 | 0 | } |
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74 | 0 | if (pUtils.hasErrorOccured()) { |
75 | 0 | throw new IOException(pUtils.getErrorMessage()); |
76 | 0 | } |
77 | 0 | } catch (final IOException e) { |
78 | 0 | SvnConfigurationOptions.getTaskLogger().info(e.getMessage()); |
79 | 0 | } catch (final RuntimeException e) { |
80 | 0 | SvnConfigurationOptions.getTaskLogger().info(e.getMessage()); |
81 | 0 | } finally { |
82 | 0 | if (pUtils != null) { |
83 | 0 | try { |
84 | 0 | pUtils.close(); |
85 | 0 | } catch (final IOException e) { |
86 | 0 | SvnConfigurationOptions.getTaskLogger().info(e.getMessage()); |
87 | 0 | } |
88 | 0 | } |
89 | 0 | } |
90 | 0 | |
91 | 0 | throw new SvnVersionMismatchException(); |
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} |
93 | 0 | |
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public synchronized boolean checkDiffPerRevPossible(final String version) { |
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99 | 0 | return version.compareTo(SVN_MINIMUM_VERSION_DIFF_PER_REV) >= 0; |
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} |
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} |