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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 bd34a28..4d1aa88 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -1,155 +1,156 @@
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 10
11static int write_compressed_tar_archive(struct archiver_args *args,const char *filter) 11static int write_compressed_tar_archive(struct archiver_args *args,const char *filter)
12{ 12{
13 int rw[2]; 13 int rw[2];
14 pid_t gzpid; 14 pid_t gzpid;
15 int stdout2; 15 int stdout2;
16 int status; 16 int status;
17 int rv; 17 int rv;
18 18
19 stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing"); 19 stdout2 = chk_non_negative(dup(STDIN_FILENO), "Preserving STDOUT before compressing");
20 chk_zero(pipe(rw), "Opening pipe from compressor subprocess"); 20 chk_zero(pipe(rw), "Opening pipe from compressor subprocess");
21 gzpid = chk_non_negative(fork(), "Forking compressor subprocess"); 21 gzpid = chk_non_negative(fork(), "Forking compressor subprocess");
22 if(gzpid==0) { 22 if(gzpid==0) {
23 /* child */ 23 /* child */
24 chk_zero(close(rw[1]), "Closing write end of pipe in child"); 24 chk_zero(close(rw[1]), "Closing write end of pipe in child");
25 chk_zero(close(STDIN_FILENO), "Closing STDIN"); 25 chk_zero(close(STDIN_FILENO), "Closing STDIN");
26 chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin"); 26 chk_non_negative(dup2(rw[0],STDIN_FILENO), "Redirecting compressor input to stdin");
27 execlp(filter,filter,NULL); 27 execlp(filter,filter,NULL);
28 _exit(-1); 28 _exit(-1);
29 } 29 }
30 /* parent */ 30 /* parent */
31 chk_zero(close(rw[0]), "Closing read end of pipe"); 31 chk_zero(close(rw[0]), "Closing read end of pipe");
32 chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor"); 32 chk_non_negative(dup2(rw[1],STDOUT_FILENO), "Redirecting output to compressor");
33 33
34 rv = write_tar_archive(args); 34 rv = write_tar_archive(args);
35 35
36 chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor"); 36 chk_zero(close(STDOUT_FILENO), "Closing STDOUT redirected to compressor");
37 chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT"); 37 chk_non_negative(dup2(stdout2,STDOUT_FILENO), "Restoring uncompressed STDOUT");
38 chk_zero(close(stdout2), "Closing uncompressed STDOUT"); 38 chk_zero(close(stdout2), "Closing uncompressed STDOUT");
39 chk_zero(close(rw[1]), "Closing write end of pipe in parent"); 39 chk_zero(close(rw[1]), "Closing write end of pipe in parent");
40 chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process"); 40 chk_positive(waitpid(gzpid,&status,0), "Waiting on compressor process");
41 if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) ) 41 if(! ( WIFEXITED(status) && WEXITSTATUS(status)==0 ) )
42 cgit_print_error("Failed to compress archive"); 42 cgit_print_error("Failed to compress archive");
43 43
44 return rv; 44 return rv;
45} 45}
46 46
47static int write_tar_gzip_archive(struct archiver_args *args) 47static int write_tar_gzip_archive(struct archiver_args *args)
48{ 48{
49 return write_compressed_tar_archive(args,"gzip"); 49 return write_compressed_tar_archive(args,"gzip");
50} 50}
51 51
52static int write_tar_bzip2_archive(struct archiver_args *args) 52static int write_tar_bzip2_archive(struct archiver_args *args)
53{ 53{
54 return write_compressed_tar_archive(args,"bzip2"); 54 return write_compressed_tar_archive(args,"bzip2");
55} 55}
56 56
57static const struct snapshot_archive_t { 57static const struct snapshot_archive_t {
58 const char *suffix; 58 const char *suffix;
59 const char *mimetype; 59 const char *mimetype;
60 write_archive_fn_t write_func; 60 write_archive_fn_t write_func;
61 int bit; 61 int bit;
62 }snapshot_archives[] = { 62 }snapshot_archives[] = {
63 { ".zip", "application/x-zip", write_zip_archive, 0x1 }, 63 { ".zip", "application/x-zip", write_zip_archive, 0x1 },
64 { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 }, 64 { ".tar.gz", "application/x-tar", write_tar_gzip_archive, 0x2 },
65 { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 }, 65 { ".tar.bz2", "application/x-tar", write_tar_bzip2_archive, 0x4 },
66 { ".tar", "application/x-tar", write_tar_archive, 0x8 } 66 { ".tar", "application/x-tar", write_tar_archive, 0x8 }
67}; 67};
68 68
69#define snapshot_archives_len (sizeof(snapshot_archives) / sizeof(*snapshot_archives)) 69#define snapshot_archives_len (sizeof(snapshot_archives) / sizeof(*snapshot_archives))
70 70
71void cgit_print_snapshot(struct cacheitem *item, const char *head, 71void cgit_print_snapshot(struct cacheitem *item, const char *head,
72 const char *hex, const char *prefix, 72 const char *hex, const char *prefix,
73 const char *filename, int snapshots) 73 const char *filename, int snapshots)
74{ 74{
75 const struct snapshot_archive_t* sat; 75 const struct snapshot_archive_t* sat;
76 struct archiver_args args; 76 struct archiver_args args;
77 struct commit *commit; 77 struct commit *commit;
78 unsigned char sha1[20]; 78 unsigned char sha1[20];
79 int f, sl, fnl = strlen(filename); 79 int f, sl, fnl = strlen(filename);
80 80
81 for(f=0; f<snapshot_archives_len; f++) { 81 for(f=0; f<snapshot_archives_len; f++) {
82 sat = &snapshot_archives[f]; 82 sat = &snapshot_archives[f];
83 if(!(snapshots & sat->bit)) 83 if(!(snapshots & sat->bit))
84 continue; 84 continue;
85 sl = strlen(sat->suffix); 85 sl = strlen(sat->suffix);
86 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix)) 86 if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
87 continue; 87 continue;
88 if (!hex) 88 if (!hex)
89 hex = head; 89 hex = head;
90 if(get_sha1(hex, sha1)) { 90 if(get_sha1(hex, sha1)) {
91 cgit_print_error(fmt("Bad object id: %s", hex)); 91 cgit_print_error(fmt("Bad object id: %s", hex));
92 return; 92 return;
93 } 93 }
94 commit = lookup_commit_reference(sha1); 94 commit = lookup_commit_reference(sha1);
95 if(!commit) { 95 if(!commit) {
96 cgit_print_error(fmt("Not a commit reference: %s", hex)); 96 cgit_print_error(fmt("Not a commit reference: %s", hex));
97 return;; 97 return;;
98 } 98 }
99 memset(&args,0,sizeof(args)); 99 memset(&args,0,sizeof(args));
100 args.base = fmt("%s/", prefix); 100 args.base = fmt("%s/", prefix);
101 args.tree = commit->tree; 101 args.tree = commit->tree;
102 args.time = commit->date;
102 cgit_print_snapshot_start(sat->mimetype, filename, item); 103 cgit_print_snapshot_start(sat->mimetype, filename, item);
103 (*sat->write_func)(&args); 104 (*sat->write_func)(&args);
104 return; 105 return;
105 } 106 }
106 cgit_print_error(fmt("Unsupported snapshot format: %s", filename)); 107 cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
107} 108}
108 109
109void cgit_print_snapshot_links(const char *repo, const char *head, 110void cgit_print_snapshot_links(const char *repo, const char *head,
110 const char *hex, int snapshots) 111 const char *hex, int snapshots)
111{ 112{
112 const struct snapshot_archive_t* sat; 113 const struct snapshot_archive_t* sat;
113 char *filename; 114 char *filename;
114 int f; 115 int f;
115 116
116 for(f=0; f<snapshot_archives_len; f++) { 117 for(f=0; f<snapshot_archives_len; f++) {
117 sat = &snapshot_archives[f]; 118 sat = &snapshot_archives[f];
118 if(!(snapshots & sat->bit)) 119 if(!(snapshots & sat->bit))
119 continue; 120 continue;
120 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex, 121 filename = fmt("%s-%s%s", cgit_repobasename(repo), hex,
121 sat->suffix); 122 sat->suffix);
122 cgit_snapshot_link(filename, NULL, NULL, (char *)head, 123 cgit_snapshot_link(filename, NULL, NULL, (char *)head,
123 (char *)hex, filename); 124 (char *)hex, filename);
124 html("<br/>"); 125 html("<br/>");
125 } 126 }
126} 127}
127 128
128int cgit_parse_snapshots_mask(const char *str) 129int cgit_parse_snapshots_mask(const char *str)
129{ 130{
130 const struct snapshot_archive_t* sat; 131 const struct snapshot_archive_t* sat;
131 static const char *delim = " \t,:/|;"; 132 static const char *delim = " \t,:/|;";
132 int f, tl, rv = 0; 133 int f, tl, rv = 0;
133 134
134 /* favor legacy setting */ 135 /* favor legacy setting */
135 if(atoi(str)) 136 if(atoi(str))
136 return 1; 137 return 1;
137 for(;;) { 138 for(;;) {
138 str += strspn(str,delim); 139 str += strspn(str,delim);
139 tl = strcspn(str,delim); 140 tl = strcspn(str,delim);
140 if(!tl) 141 if(!tl)
141 break; 142 break;
142 for(f=0; f<snapshot_archives_len; f++) { 143 for(f=0; f<snapshot_archives_len; f++) {
143 sat = &snapshot_archives[f]; 144 sat = &snapshot_archives[f];
144 if(!(strncmp(sat->suffix, str, tl) && 145 if(!(strncmp(sat->suffix, str, tl) &&
145 strncmp(sat->suffix+1, str, tl-1))) { 146 strncmp(sat->suffix+1, str, tl-1))) {
146 rv |= sat->bit; 147 rv |= sat->bit;
147 break; 148 break;
148 } 149 }
149 } 150 }
150 str += tl; 151 str += tl;
151 } 152 }
152 return rv; 153 return rv;
153} 154}
154 155
155/* vim:set sw=8: */ 156/* vim:set sw=8: */