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24 id 1WUJaP-0004Av-Tx; Sun, 30 Mar 2014 14:31:57 -0300
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27 From: David Bremner <david@tethera.net>
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28 To: notmuch@notmuchmail.org
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29 Subject: [Patch v4 3/3] restore: transparently support gzipped input
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30 Date: Sun, 30 Mar 2014 14:31:40 -0300
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31 Message-Id: <1396200700-29361-4-git-send-email-david@tethera.net>
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32 X-Mailer: git-send-email 1.9.0
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33 In-Reply-To: <1396200700-29361-1-git-send-email-david@tethera.net>
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34 References: <1396200700-29361-1-git-send-email-david@tethera.net>
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35 X-BeenThere: notmuch@notmuchmail.org
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36 X-Mailman-Version: 2.1.13
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38 List-Id: "Use and development of the notmuch mail system."
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39 <notmuch.notmuchmail.org>
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49 We rely completely on zlib to do the right thing in detecting gzipped
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50 input. Since our dump format is chosen to be 7 bit ascii, this should
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53 notmuch-restore.c | 37 +++++++++++++++++++++----------------
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54 test/T240-dump-restore.sh | 14 ++++++++++++++
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55 2 files changed, 35 insertions(+), 16 deletions(-)
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57 diff --git a/notmuch-restore.c b/notmuch-restore.c
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58 index c54d513..86bce20 100644
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59 --- a/notmuch-restore.c
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60 +++ b/notmuch-restore.c
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62 #include "hex-escape.h"
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63 #include "tag-util.h"
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64 #include "string-util.h"
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65 +#include "zlib-extra.h"
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67 static regex_t regex;
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69 @@ -128,7 +129,7 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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70 tag_op_list_t *tag_ops;
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72 char *input_file_name = NULL;
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73 - FILE *input = stdin;
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76 void *line_ctx = NULL;
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78 @@ -163,13 +164,15 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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80 flags |= TAG_FLAG_REMOVE_ALL;
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82 - if (input_file_name) {
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83 - input = fopen (input_file_name, "r");
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84 - if (input == NULL) {
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85 - fprintf (stderr, "Error opening %s for reading: %s\n",
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86 - input_file_name, strerror (errno));
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87 - return EXIT_FAILURE;
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89 + if (input_file_name)
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90 + input = gzopen (input_file_name, "r");
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92 + input = gzdopen (fileno (stdin), "r");
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94 + if (input == NULL) {
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95 + fprintf (stderr, "Error opening %s for (gzip) reading: %s\n",
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96 + input_file_name ? input_file_name : "stdin", strerror (errno));
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97 + return EXIT_FAILURE;
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100 if (opt_index < argc) {
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101 @@ -184,12 +187,17 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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105 - line_len = getline (&line, &line_size, input);
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106 + util_status_t status;
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108 + status = gz_getline (line_ctx, &line, &line_size, &line_len, input);
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110 /* empty input file not considered an error */
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111 - if (line_len < 0)
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112 + if (status == UTIL_EOF)
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113 return EXIT_SUCCESS;
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116 + return EXIT_FAILURE;
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118 } while ((line_len == 0) ||
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119 (line[0] == '#') ||
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120 /* the cast is safe because we checked about for line_len < 0 */
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121 @@ -254,7 +262,7 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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125 - } while ((line_len = getline (&line, &line_size, input)) != -1);
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126 + } while (gz_getline (line_ctx, &line, &line_size, &line_len, input) == UTIL_SUCCESS);
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128 if (line_ctx != NULL)
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129 talloc_free (line_ctx);
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130 @@ -262,13 +270,10 @@ notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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131 if (input_format == DUMP_FORMAT_SUP)
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137 notmuch_database_destroy (notmuch);
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139 - if (input != stdin)
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141 + if (input_file_name != NULL)
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142 + gzclose_r (input);
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144 return ret ? EXIT_FAILURE : EXIT_SUCCESS;
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146 diff --git a/test/T240-dump-restore.sh b/test/T240-dump-restore.sh
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147 index d79aca8..50d4d48 100755
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148 --- a/test/T240-dump-restore.sh
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149 +++ b/test/T240-dump-restore.sh
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150 @@ -80,6 +80,20 @@ notmuch dump --gzip --output=dump-gzip-outfile.gz
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151 gunzip dump-gzip-outfile.gz
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152 test_expect_equal_file dump.expected dump-gzip-outfile
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154 +test_begin_subtest "restoring gzipped stdin"
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155 +notmuch dump --gzip --output=backup.gz
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156 +notmuch tag +new_tag '*'
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157 +notmuch restore < backup.gz
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158 +notmuch dump --output=dump.actual
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159 +test_expect_equal_file dump.expected dump.actual
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161 +test_begin_subtest "restoring gzipped file"
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162 +notmuch dump --gzip --output=backup.gz
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163 +notmuch tag +new_tag '*'
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164 +notmuch restore --input=backup.gz
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165 +notmuch dump --output=dump.actual
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166 +test_expect_equal_file dump.expected dump.actual
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168 # Note, we assume all messages from cworth have a message-id
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169 # containing cworth.org
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