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stagit-index.c - stagit - static git page generator |
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git clone git://git.codemadness.org/stagit (git://git.codemadness.org) |
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README |
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LICENSE |
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--- |
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stagit-index.c (6286B) |
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--- |
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1 #include <err.h> |
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2 #include <limits.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <string.h> |
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6 #include <time.h> |
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7 #include <unistd.h> |
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8 |
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9 #include <git2.h> |
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10 |
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11 static git_repository *repo; |
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12 |
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13 static const char *relpath = ""; |
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14 |
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15 static char description[255] = "Repositories"; |
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16 static char *name = ""; |
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17 static char owner[255]; |
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18 |
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19 /* Handle read or write errors for a FILE * stream */ |
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20 void |
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21 checkfileerror(FILE *fp, const char *name, int mode) |
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22 { |
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23 if (mode == 'r' && ferror(fp)) |
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24 errx(1, "read error: %s", name); |
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25 else if (mode == 'w' && (fflush(fp) || ferror(fp))) |
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26 errx(1, "write error: %s", name); |
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27 } |
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28 |
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29 void |
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30 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2) |
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31 { |
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32 int r; |
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33 |
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34 r = snprintf(buf, bufsiz, "%s%s%s", |
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35 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); |
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36 if (r < 0 || (size_t)r >= bufsiz) |
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37 errx(1, "path truncated: '%s%s%s'", |
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38 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2); |
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39 } |
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40 |
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41 /* Percent-encode, see RFC3986 section 2.1. */ |
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42 void |
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43 percentencode(FILE *fp, const char *s, size_t len) |
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44 { |
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45 static char tab[] = "0123456789ABCDEF"; |
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46 unsigned char uc; |
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47 size_t i; |
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48 |
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49 for (i = 0; *s && i < len; s++, i++) { |
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50 uc = *s; |
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51 /* NOTE: do not encode '/' for paths or ",-." */ |
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52 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') || |
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53 uc == '[' || uc == ']') { |
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54 putc('%', fp); |
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55 putc(tab[(uc >> 4) & 0x0f], fp); |
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56 putc(tab[uc & 0x0f], fp); |
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57 } else { |
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58 putc(uc, fp); |
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59 } |
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60 } |
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61 } |
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62 |
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63 /* Escape characters below as HTML 2.0 / XML 1.0. */ |
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64 void |
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65 xmlencode(FILE *fp, const char *s, size_t len) |
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66 { |
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67 size_t i; |
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68 |
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69 for (i = 0; *s && i < len; s++, i++) { |
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70 switch(*s) { |
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71 case '<': fputs("<", fp); break; |
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72 case '>': fputs(">", fp); break; |
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73 case '\'': fputs("'" , fp); break; |
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74 case '&': fputs("&", fp); break; |
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75 case '"': fputs(""", fp); break; |
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76 default: putc(*s, fp); |
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77 } |
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78 } |
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79 } |
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80 |
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81 void |
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82 printtimeshort(FILE *fp, const git_time *intime) |
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83 { |
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84 struct tm *intm; |
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85 time_t t; |
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86 char out[32]; |
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87 |
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88 t = (time_t)intime->time; |
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89 if (!(intm = gmtime(&t))) |
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90 return; |
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91 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm); |
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92 fputs(out, fp); |
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93 } |
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94 |
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95 void |
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96 writeheader(FILE *fp) |
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97 { |
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98 fputs("<!DOCTYPE html>\n" |
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99 "<html>\n<head>\n" |
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100 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n" |
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101 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n" |
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102 "<title>", fp); |
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103 xmlencode(fp, description, strlen(description)); |
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104 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath); |
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105 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath); |
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106 fputs("</head>\n<body>\n", fp); |
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107 fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n" |
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108 "<td><span class=\"desc\">", relpath); |
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109 xmlencode(fp, description, strlen(description)); |
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110 fputs("</span></td></tr><tr><td></td><td>\n" |
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111 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n" |
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112 "<table id=\"index\"><thead>\n" |
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113 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>" |
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114 "<td><b>Last commit</b></td></tr>" |
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115 "</thead><tbody>\n", fp); |
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116 } |
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117 |
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118 void |
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119 writefooter(FILE *fp) |
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120 { |
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121 fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp); |
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122 } |
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123 |
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124 int |
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125 writelog(FILE *fp) |
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126 { |
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127 git_commit *commit = NULL; |
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128 const git_signature *author; |
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129 git_revwalk *w = NULL; |
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130 git_oid id; |
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131 char *stripped_name = NULL, *p; |
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132 int ret = 0; |
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133 |
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134 git_revwalk_new(&w, repo); |
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135 git_revwalk_push_head(w); |
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136 |
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137 if (git_revwalk_next(&id, w) || |
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138 git_commit_lookup(&commit, repo, &id)) { |
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139 ret = -1; |
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140 goto err; |
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141 } |
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142 |
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143 author = git_commit_author(commit); |
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144 |
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145 /* strip .git suffix */ |
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146 if (!(stripped_name = strdup(name))) |
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147 err(1, "strdup"); |
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148 if ((p = strrchr(stripped_name, '.'))) |
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149 if (!strcmp(p, ".git")) |
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150 *p = '\0'; |
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151 |
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152 fputs("<tr><td><a href=\"", fp); |
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153 percentencode(fp, stripped_name, strlen(stripped_name)); |
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154 fputs("/log.html\">", fp); |
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155 xmlencode(fp, stripped_name, strlen(stripped_name)); |
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156 fputs("</a></td><td>", fp); |
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157 xmlencode(fp, description, strlen(description)); |
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158 fputs("</td><td>", fp); |
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159 xmlencode(fp, owner, strlen(owner)); |
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160 fputs("</td><td>", fp); |
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161 if (author) |
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162 printtimeshort(fp, &(author->when)); |
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163 fputs("</td></tr>", fp); |
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164 |
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165 git_commit_free(commit); |
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166 err: |
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167 git_revwalk_free(w); |
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168 free(stripped_name); |
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169 |
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170 return ret; |
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171 } |
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172 |
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173 int |
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174 main(int argc, char *argv[]) |
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175 { |
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176 FILE *fp; |
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177 char path[PATH_MAX], repodirabs[PATH_MAX + 1]; |
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178 const char *repodir; |
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179 int i, ret = 0; |
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180 |
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181 if (argc < 2) { |
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182 fprintf(stderr, "usage: %s [repodir...]\n", argv[0]); |
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183 return 1; |
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184 } |
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185 |
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186 /* do not search outside the git repository: |
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187 GIT_CONFIG_LEVEL_APP is the highest level currently */ |
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188 git_libgit2_init(); |
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189 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++) |
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190 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, ""); |
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191 /* do not require the git repository to be owned by the current user */ |
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192 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0); |
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193 |
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194 #ifdef __OpenBSD__ |
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195 if (pledge("stdio rpath", NULL) == -1) |
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196 err(1, "pledge"); |
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197 #endif |
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198 |
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199 writeheader(stdout); |
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200 |
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201 for (i = 1; i < argc; i++) { |
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202 repodir = argv[i]; |
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203 if (!realpath(repodir, repodirabs)) |
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204 err(1, "realpath"); |
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205 |
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206 if (git_repository_open_ext(&repo, repodir, |
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207 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) { |
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208 fprintf(stderr, "%s: cannot open repository\n", argv[0]); |
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209 ret = 1; |
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210 continue; |
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211 } |
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212 |
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213 /* use directory name as name */ |
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214 if ((name = strrchr(repodirabs, '/'))) |
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215 name++; |
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216 else |
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217 name = ""; |
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218 |
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219 /* read description or .git/description */ |
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220 joinpath(path, sizeof(path), repodir, "description"); |
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221 if (!(fp = fopen(path, "r"))) { |
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222 joinpath(path, sizeof(path), repodir, ".git/description"); |
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223 fp = fopen(path, "r"); |
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224 } |
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225 description[0] = '\0'; |
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226 if (fp) { |
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227 if (!fgets(description, sizeof(description), fp)) |
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228 description[0] = '\0'; |
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229 checkfileerror(fp, "description", 'r'); |
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230 fclose(fp); |
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231 } |
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232 |
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233 /* read owner or .git/owner */ |
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234 joinpath(path, sizeof(path), repodir, "owner"); |
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235 if (!(fp = fopen(path, "r"))) { |
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236 joinpath(path, sizeof(path), repodir, ".git/owner"); |
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237 fp = fopen(path, "r"); |
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238 } |
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239 owner[0] = '\0'; |
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240 if (fp) { |
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241 if (!fgets(owner, sizeof(owner), fp)) |
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242 owner[0] = '\0'; |
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243 checkfileerror(fp, "owner", 'r'); |
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244 fclose(fp); |
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245 owner[strcspn(owner, "\n")] = '\0'; |
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246 } |
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247 writelog(stdout); |
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248 } |
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249 writefooter(stdout); |
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250 |
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251 /* cleanup */ |
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252 git_repository_free(repo); |
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253 git_libgit2_shutdown(); |
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254 |
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255 checkfileerror(stdout, "<stdout>", 'w'); |
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256 |
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257 return ret; |
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258 } |
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