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-rw-r--r--ui-snapshot.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ui-snapshot.c b/ui-snapshot.c
index dfedd8f..67dbbdd 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -1,157 +1,158 @@
1/* ui-snapshot.c: generate snapshot of a commit 1/* ui-snapshot.c: generate snapshot of a commit
2 * 2 *
3 * Copyright (C) 2006 Lars Hjemli 3 * Copyright (C) 2006 Lars Hjemli
4 * 4 *
5 * Licensed under GNU General Public License v2 5 * Licensed under GNU General Public License v2
6 * (see COPYING for full license text) 6 * (see COPYING for full license text)
7 */ 7 */
8 8
9#include "cgit.h" 9#include "cgit.h"
10#include "html.h"
10 11
11static int write_compressed_tar_archive(struct archiver_args *args,const char *filter) 12static int write_compressed_tar_archive(struct archiver_args *args,const char *filter)
12{ 13{
13 int rw[2]; 14 int rw[2];
14 pid_t gzpid; 15 pid_t gzpid;
15 int stdout2; 16 int stdout2;
16 int status; 17 int status;
17 int rv; 18 int rv;
18 19
19 stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing"); 20 stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
20 chk_zero(pipe(rw), "Opening pipe from compressor subprocess"); 21 chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
21 gzpid = chk_non_negative(fork(), "Forking compressor subprocess"); 22 gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
22 if(gzpid==0) { 23 if(gzpid==0) {
23 /* child */ 24 /* child */
24 chk_zero(close(rw[1]), "Closing write end of pipe in child"); 25 chk_zero(close(rw[1]), "Closing write end of pipe in child");
25 chk_zero(close(STDIN_FILENO), "Closing STDIN"); 26 chk_zero(close(STDIN_FILENO), "Closing STDIN");
26 chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin"); 27 chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
27 execlp(filter,filter,NULL); 28 execlp(filter,filter,NULL);
28 _exit(-1); 29 _exit(-1);
29 } 30 }
30 /* parent */ 31 /* parent */
31 chk_zero(close(rw[0]), "Closing read end of pipe"); 32 chk_zero(close(rw[0]), "Closing read end of pipe");
32 chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor"); 33 chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
33 34
34 rv = write_tar_archive(args); 35 rv = write_tar_archive(args);
35 36
36 chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor"); 37 chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
37 chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT"); 38 chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
38 chk_zero(close(stdout2), "Closing uncompressed STDOUT"); 39 chk_zero(close(stdout2), "Closing uncompressed STDOUT");
39 chk_zero(close(rw[1]), "Closing write end of pipe in parent"); 40 chk_zero(close(rw[1]), "Closing write end of pipe in parent");
40 chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process"); 41 chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
41 if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) ) 42 if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
42 cgit_print_error("Failed to compress archive"); 43 cgit_print_error("Failed to compress archive");
43 44
44 return rv; 45 return rv;
45} 46}
46 47
47static int write_tar_gzip_archive(struct archiver_args *args) 48static int write_tar_gzip_archive(struct archiver_args *args)
48{ 49{
49 return write_compressed_tar_archive(args,"gzip"); 50 return write_compressed_tar_archive(args,"gzip");
50} 51}
51 52
52static int write_tar_bzip2_archive(struct archiver_args *args) 53static int write_tar_bzip2_archive(struct archiver_args *args)
53{ 54{
54 return write_compressed_tar_archive(args,"bzip2"); 55 return write_compressed_tar_archive(args,"bzip2");
55} 56}
56 57
57static const struct snapshot_archive_t { 58static const struct snapshot_archive_t {
58 const char *suffix; 59 const char *suffix;
59 const char *mimetype; 60 const char *mimetype;
60 write_archive_fn_t write_func; 61 write_archive_fn_t write_func;
61 int bit; 62 int bit;
62 }snapshot_archives[] = { 63 }snapshot_archives[] = {
63 { ".zip", "application/x-zip", write_zip_archive, 0x1 }, 64 { ".zip", "application/x-zip", write_zip_archive, 0x1 },
64 { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 }, 65 { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 },
65 { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 }, 66 { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 },
66 { ".tar", "application/x-tar", write_tar_archive, 0x8 } 67 { ".tar", "application/x-tar", write_tar_archive, 0x8 }
67}; 68};
68 69
69#define snapshot_archives_len (sizeof(snapshot_archives) / sizeof(*snapshot_archives)) 70#define snapshot_archives_len (sizeof(snapshot_archives) / sizeof(*snapshot_archives))
70 71
71void cgit_print_snapshot(struct cacheitem *item, const char *head, 72void cgit_print_snapshot(struct cacheitem *item, const char *head,
72 const char *hex, const char *prefix, 73 const char *hex, const char *prefix,
73 const char *filename, int snapshots) 74 const char *filename, int snapshots)
74{ 75{
75 const struct snapshot_archive_t* sat; 76 const struct snapshot_archive_t* sat;
76 struct archiver_args args; 77 struct archiver_args args;
77 struct commit *commit; 78 struct commit *commit;
78 unsigned char sha1[20]; 79 unsigned char sha1[20];
79 int f, sl, fnl = strlen(filename); 80 int f, sl, fnl = strlen(filename);
80 81
81 for(f=0; f<snapshot_archives_len; f++) { 82 for(f=0; f<snapshot_archives_len; f++) {
82 sat = &snapshot_archives[f]; 83 sat = &snapshot_archives[f];
83 if(!(snapshots & sat->bit)) 84 if(!(snapshots & sat->bit))
84 continue; 85 continue;
85 sl = strlen(sat->suffix); 86 sl = strlen(sat->suffix);
86 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix)) 87 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
87 continue; 88 continue;
88 if (!hex) 89 if (!hex)
89 hex = head; 90 hex = head;
90 if(get_sha1(hex, sha1)) { 91 if(get_sha1(hex, sha1)) {
91 cgit_print_error(fmt("Bad object id: %s", hex)); 92 cgit_print_error(fmt("Bad object id: %s", hex));
92 return; 93 return;
93 } 94 }
94 commit = lookup_commit_reference(sha1); 95 commit = lookup_commit_reference(sha1);
95 if(!commit) { 96 if(!commit) {
96 cgit_print_error(fmt("Not a commit reference: %s", hex)); 97 cgit_print_error(fmt("Not a commit reference: %s", hex));
97 return;; 98 return;;
98 } 99 }
99 memset(&args,0,sizeof(args)); 100 memset(&args,0,sizeof(args));
100 args.base = fmt("%s/", prefix); 101 args.base = fmt("%s/", prefix);
101 args.tree = commit->tree; 102 args.tree = commit->tree;
102 args.time = commit->date; 103 args.time = commit->date;
103 cgit_print_snapshot_start(sat->mimetype, filename, item); 104 cgit_print_snapshot_start(sat->mimetype, filename, item);
104 (*sat->write_func)(&args); 105 (*sat->write_func)(&args);
105 return; 106 return;
106 } 107 }
107 cgit_print_error(fmt("Unsupported snapshot format: %s", filename)); 108 cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
108} 109}
109 110
110void cgit_print_snapshot_links(const char *repo, const char *head, 111void cgit_print_snapshot_links(const char *repo, const char *head,
111 const char *hex, int snapshots) 112 const char *hex, int snapshots)
112{ 113{
113 const struct snapshot_archive_t* sat; 114 const struct snapshot_archive_t* sat;
114 char *filename; 115 char *filename;
115 int f; 116 int f;
116 117
117 for(f=0; f<snapshot_archives_len; f++) { 118 for(f=0; f<snapshot_archives_len; f++) {
118 sat = &snapshot_archives[f]; 119 sat = &snapshot_archives[f];
119 if(!(snapshots & sat->bit)) 120 if(!(snapshots & sat->bit))
120 continue; 121 continue;
121 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex, 122 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
122 sat->suffix); 123 sat->suffix);
123 cgit_snapshot_link(filename, NULL, NULL, (char *)head, 124 cgit_snapshot_link(filename, NULL, NULL, (char *)head,
124 (char *)hex, filename); 125 (char *)hex, filename);
125 html("<br/>"); 126 html("<br/>");
126 } 127 }
127} 128}
128 129
129int cgit_parse_snapshots_mask(const char *str) 130int cgit_parse_snapshots_mask(const char *str)
130{ 131{
131 const struct snapshot_archive_t* sat; 132 const struct snapshot_archive_t* sat;
132 static const char *delim = " \t,:/|;"; 133 static const char *delim = " \t,:/|;";
133 int f, tl, sl, rv = 0; 134 int f, tl, sl, rv = 0;
134 135
135 /* favor legacy setting */ 136 /* favor legacy setting */
136 if(atoi(str)) 137 if(atoi(str))
137 return 1; 138 return 1;
138 for(;;) { 139 for(;;) {
139 str += strspn(str,delim); 140 str += strspn(str,delim);
140 tl = strcspn(str,delim); 141 tl = strcspn(str,delim);
141 if(!tl) 142 if(!tl)
142 break; 143 break;
143 for(f=0; f<snapshot_archives_len; f++) { 144 for(f=0; f<snapshot_archives_len; f++) {
144 sat = &snapshot_archives[f]; 145 sat = &snapshot_archives[f];
145 sl = strlen(sat->suffix); 146 sl = strlen(sat->suffix);
146 if((tl == sl && !strncmp(sat->suffix, str, tl)) || 147 if((tl == sl && !strncmp(sat->suffix, str, tl)) ||
147 (tl == sl-1 && !strncmp(sat->suffix+1, str, tl-1))) { 148 (tl == sl-1 && !strncmp(sat->suffix+1, str, tl-1))) {
148 rv |= sat->bit; 149 rv |= sat->bit;
149 break; 150 break;
150 } 151 }
151 } 152 }
152 str += tl; 153 str += tl;
153 } 154 }
154 return rv; 155 return rv;
155} 156}
156 157
157/* vim:set sw=8: */ 158/* vim:set sw=8: */