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Fixed popen issues, added binary previews, added option to view previews

Browse Source
pull/19/head v1.1
mananapr 5 years ago
parent adf61b20f9
commit 127b8d882b
3 changed files with 297 additions and 140 deletions
Show Stats Download Patch File Download Diff File

5
README.md
Unescape View File

@ -11,7 +11,6 @@ minimal.
- `fzf` for searching
- `w3mimgdisplay` or `Überzug` for image previews
- `mediainfo` for viewing media info and file sizes
- `sed` for removing a particular selection
- `atool` for archive previews
## Compiling and Installation
@ -49,6 +48,7 @@ Arch Linux users can use the [AUR](https://aur.archlinux.org/packages/cfiles) pa
| <kbd>dd</kbd> | Move files from selection list to trash |
| <kbd>dD</kbd> | Remove selected files |
| <kbd>i</kbd> | View mediainfo and general info |
| <kbd>I</kbd> | View preview |
| <kbd>.</kbd> | Toggle hidden files |
| <kbd>'</kbd> | View/Goto bookmarks |
| <kbd>m</kbd> | Add bookmark |
@ -72,8 +72,7 @@ or press `m` in `cfiles` to add new bookmarks.
If `$XDG_CACHE_HOME` is not set, then `$HOME/.cache` is used.
## Opening Files
You can set `FILE_OPENER` in `config.h` to specify your file opening program. It is set to use `xdg-open` by default but you can change it to anything like `thunar`. macOS users need to set it to `/usr/bin/open`.
Note that you have to specify the full path of the binary.
You can set `FILE_OPENER` in `config.h` to specify your file opening program. It is set to use `xdg-open` by default but you can change it to anything like `thunar`. macOS users need to set it to `open`.
## Image Previews
You can either go with `w3mimgdisplay` or `Überzug` ([link](https://github.com/seebye/ueberzug)) for image previews.

427
cf.c
Unescape View File

@ -465,53 +465,65 @@ int compare (const void * a, const void * b )
void getMIME(char *filepath, char mime[50])
{
char buf[50];
char *cmd = NULL;
FILE *fp;
int fd;
pid_t pid;
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/mime",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"%s/mime",cache_path);
// Allocate Memory to `cmd`
allocSize = snprintf(NULL, 0, "xdg-mime query filetype \'%s\'", filepath);
cmd = malloc(allocSize+1);
snprintf(cmd, allocSize+1, "xdg-mime query filetype \'%s\'", filepath);
// Remove the preview file
remove(temp_dir);
if((fp = popen(cmd,"r")) == NULL)
// Create a child process to run command and store output in preview file
pid = fork();
if( pid == 0 )
{
exit(0);
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
dup2(fd, 1);
execlp("xdg-mime","xdg-mime","query","filetype",filepath,(char *)0);
exit(1);
}
else
{
int status;
waitpid(pid,&status,0);
}
// Open preview file to read output
fp = fopen(temp_dir, "r");
while(fgets(buf,50,fp) != NULL){}
fclose(fp);
strtok(buf,"/");
snprintf(mime,50,"%s",buf);
free(cmd);
}
/*
Opens a file using FILE_OPENER
*/
*/
void openFile(char *filepath)
{
char mime[50];
getMIME(filepath, mime);
if(strcmp(mime,"text") == 0)
{
char *cmd;
// Allocate Memory to `cmd`
allocSize = snprintf(NULL, 0, "%s/%s", "/usr/bin", editor);
cmd = malloc(allocSize+1);
snprintf(cmd, allocSize+1, "%s/%s", "/usr/bin", editor);
endwin();
// Make a child process to edit file
pid_t pid;
pid = fork();
if (pid == 0)
{
execl(cmd, cmd, filepath, (char *)0);
execlp(editor, editor, filepath, (char *)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
free(cmd);
return;
}
}
@ -519,7 +531,7 @@ void openFile(char *filepath)
pid = fork();
if (pid == 0)
{
execl(FILE_OPENER, FILE_OPENER, filepath, (char *)0);
execlp(FILE_OPENER, FILE_OPENER, filepath, (char *)0);
exit(1);
}
}
@ -580,33 +592,34 @@ void writeClipboard(char *filepath)
*/
void removeClipboard(char *filepath)
{
char *cmd = NULL;
char *arg = NULL;
// Allocate Memory to `cmd`
allocSize = snprintf(NULL, 0, "%s", "/usr/bin/sed");
cmd = malloc(allocSize+1);
snprintf(cmd, allocSize+1, "%s", "/usr/bin/sed");
FILE *f1;
FILE *f2;
char buf[PATH_MAX];
// Allocate Memory to `arg`
allocSize = snprintf(NULL, 0, "\\|^%s|d", filepath);
arg = malloc(allocSize + 1);
snprintf(arg, allocSize+1, "\\|^%s|d", filepath);
// Create `temp_clipboard` without `filepath`
f1 = fopen(clipboard_path,"r");
f2 = fopen(temp_clipboard_path,"a+");
while(fgets(buf, PATH_MAX, (FILE*)f1))
{
buf[strlen(buf)-1] = '\0';
if(strcasecmp(buf, filepath) != 0)
fprintf(f2, "%s\n", buf);
}
fclose(f1);
fclose(f2);
// Create a child process to run command
// Create a child process to replace clipboard_path with temp_clipboard_path
pid_t pid;
pid = fork();
if( pid == 0 )
{
execl(cmd, cmd, "-i", arg, clipboard_path, (char *)0);
execlp("mv", "mv", temp_clipboard_path, clipboard_path, (char *)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
free(arg);
free(cmd);
}
}
@ -660,68 +673,76 @@ void getTextPreview(char *filepath, int maxy, int maxx)
stat(filepath, &st);
if(st.st_size > 10000000)
return;
FILE *fp = fopen(filepath,"r");
if(fp == NULL)
return;
char buf[250];
int t=0;
while(fgets(buf, 250, (FILE*) fp))
{
wmove(preview_win,t+1,2);
wprintw(preview_win,"%.*s",maxx-4,buf);
t++;
}
wrefresh(preview_win);
fclose(fp);
}
/*
Gets previews of video files
*/
void getVidPreview(char *filepath, int maxy, int maxx)
{
pid_t pid;
int fd;
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/preview",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"%s/preview",cache_path);
// Buffer for file reading
char buf[250];
endwin();
// Set path to preview file
char *preview_path = NULL;
allocSize = snprintf(NULL, 0, "%s/preview", cache_path);
preview_path = malloc(allocSize+1);
snprintf(preview_path, allocSize+1, "%s/preview", cache_path);
// Create a child process to run "mediainfo filepath > ~/.cache/cfiles/preview"
pid = fork();
if( pid == 0 )
{
remove(temp_dir);
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
// Redirect stdout
dup2(fd, 1);
execl("/usr/bin/mediainfo", "mediainfo", filepath, (char *)0);
exit(1);
}
else
// Generate Hex Preview if file is a binary
char mime[50];
getMIME(filepath, mime);
if(strcasecmp(mime,"application") == 0)
{
int status;
waitpid(pid, &status, 0);
pid = fork();
if( pid == 0 )
remove(preview_path);
pid_t pid = fork();
if(pid == 0)
{
execl("/usr/bin/less", "less", temp_dir, (char *)0);
int fd = open(preview_path, O_CREAT | O_WRONLY, 0755);
dup2(fd,1);
execlp("hexdump","hexdump",filepath,(char*)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
FILE *fp = fopen(preview_path, "r");
int t=0;
while(fgets(buf, 250, (FILE*) fp))
{
wmove(preview_win,t+1,2);
wprintw(preview_win,"%.*s",maxx-4,buf);
t++;
}
wrefresh(preview_win);
fclose(fp);
}
free(preview_path);
return;
}
refresh();
// Copy file to `preview_path`
pid_t pid = fork();
if(pid == 0)
{
int fd = open("/dev/null", O_WRONLY);
dup2(fd,2);
execlp("cp","cp",filepath,preview_path,(char*)0);
exit(1);
}
// Print the preview
FILE *fp = fopen(filepath,"r");
if(fp == NULL)
{
free(preview_path);
return;
}
int t=0;
while(fgets(buf, 250, (FILE*) fp))
{
wmove(preview_win,t+1,2);
wprintw(preview_win,"%.*s",maxx-4,buf);
t++;
}
wrefresh(preview_win);
free(preview_path);
fclose(fp);
}
@ -735,30 +756,31 @@ void getArchivePreview(char *filepath, int maxy, int maxx)
int null_fd;
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/preview",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"%s/preview",cache_path);
char *preview_path = NULL;
allocSize = snprintf(NULL, 0, "%s/preview", cache_path);
preview_path = malloc(allocSize+1);
snprintf(preview_path, allocSize+1, "%s/preview", cache_path);
// Create a child process to run "atool -lq filepath > ~/.cache/cfiles/preview"
pid = fork();
if( pid == 0 )
{
remove(temp_dir);
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
remove(preview_path);
fd = open(preview_path, O_CREAT | O_WRONLY, 0755);
null_fd = open("/dev/null", O_WRONLY);
// Redirect stdout
dup2(fd, 1);
// Redirect errors to /dev/null
dup2(null_fd, 2);
execl("/usr/bin/atool", "atool", "-lq", filepath, (char *)0);
execlp("atool", "atool", "-lq", filepath, (char *)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
getTextPreview(temp_dir, maxy, maxx);
getTextPreview(preview_path, maxy, maxx);
free(preview_path);
}
}
@ -807,6 +829,53 @@ void getPreview(char *filepath, int maxy, int maxx)
}
/*
Gets previews of video files
*/
void getVidPreview(char *filepath, int maxy, int maxx)
{
pid_t pid;
int fd;
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/preview",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"%s/preview",cache_path);
endwin();
// Create a child process to run "mediainfo filepath > ~/.cache/cfiles/preview"
pid = fork();
if( pid == 0 )
{
remove(temp_dir);
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
// Redirect stdout
dup2(fd, 1);
execlp("mediainfo", "mediainfo", filepath, (char *)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
pid = fork();
if( pid == 0 )
{
execlp("less", "less", temp_dir, (char *)0);
exit(1);
}
else
{
waitpid(pid, &status, 0);
}
refresh();
}
}
/*
Gets path of parent directory
*/
@ -902,7 +971,7 @@ void copyFiles(char *present_dir)
pid_t pid = fork();
if(pid == 0)
{
execl("/usr/bin/cp", "cp", "-r", "-v", buf, present_dir, (char *)0);
execlp("cp", "cp", "-r", "-v", buf, present_dir, (char *)0);
exit(1);
}
else
@ -934,7 +1003,7 @@ void removeFiles()
pid_t pid = fork();
if(pid == 0)
{
execl("/usr/bin/rm", "rm", "-r", "-v", buf, (char *)0);
execlp("rm", "rm", "-r", "-v", buf, (char *)0);
exit(1);
}
else
@ -976,7 +1045,7 @@ void renameFiles()
pid = fork();
if( pid == 0 )
{
execl("/usr/bin/cp", "cp", clipboard_path, temp_clipboard_path, (char *)0);
execlp("cp", "cp", clipboard_path, temp_clipboard_path, (char *)0);
exit(1);
}
else
@ -989,15 +1058,15 @@ void renameFiles()
endwin();
// Allocate `cmd` to store full path of editor
allocSize = snprintf(NULL,0,"/usr/bin/%s", editor);
allocSize = snprintf(NULL,0,"%s", editor);
cmd = malloc(allocSize + 1);
snprintf(cmd,allocSize+1,"/usr/bin/%s", editor);
snprintf(cmd,allocSize+1,"%s", editor);
// Create a child process to edit temp_clipboard
pid = fork();
if( pid == 0 )
{
execl(cmd, cmd, temp_clipboard_path, (char *)0);
execlp(cmd, cmd, temp_clipboard_path, (char *)0);
exit(1);
}
else
@ -1026,7 +1095,7 @@ void renameFiles()
pid = fork();
if( pid == 0 )
{
execl("/usr/bin/mv", "mv", buf, buf2, (char *)0);
execlp("mv", "mv", buf, buf2, (char *)0);
exit(1);
}
else
@ -1070,7 +1139,7 @@ void moveFiles(char *present_dir)
pid_t pid = fork();
if(pid == 0)
{
execl("/usr/bin/mv", "mv", "-v", buf, present_dir, (char *)0);
execlp("mv", "mv", "-v", buf, present_dir, (char *)0);
exit(1);
}
else
@ -1169,6 +1238,41 @@ void clearImg()
}
/*
Opens `preview` file in pager
*/
void viewPreview()
{
pid_t pid;
char *preview_path = NULL;
// Store path of preview file in `preview_path`
allocSize = snprintf(NULL, 0, "%s/preview", cache_path);
preview_path = malloc(allocSize + 1);
snprintf(preview_path, allocSize+1, "%s/preview", cache_path);
// Exit curses mode
endwin();
// Start a child process to display preview
pid = fork();
if(pid == 0)
{
execlp("less", "less", preview_path, (char *)0);
exit(1);
}
else
{
int status;
waitpid(pid, &status, 0);
}
// Restart curses mode
refresh();
free(preview_path);
}
/*
Checks if some flags are enabled and handles them accordingly
*/
@ -1246,6 +1350,7 @@ int main(int argc, char* argv[])
// Main Loop
do
{
signal(SIGCHLD, SIG_IGN);
// Stores length of VLA `directories`
int temp_len;
@ -1301,6 +1406,7 @@ int main(int argc, char* argv[])
int t = 0;
for( i=start; i<len; i++ )
{
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/%s",dir,directories[i]);
temp_dir = malloc(allocSize + 1);
snprintf(temp_dir,allocSize+1,"%s/%s",dir,directories[i]);
@ -1326,6 +1432,9 @@ int main(int argc, char* argv[])
t++;
}
// Check if selection is -1
if(selection == -1)
selection = 0;
// Store name of selected file
snprintf(selected_file,NAME_MAX,"%s",directories[selection]);
@ -1410,12 +1519,11 @@ int main(int argc, char* argv[])
pid_t pid;
// For fzf
char *cmd;
char *buf;
char *path;
// For popen
FILE *fp;
int fd;
int pfd[2];
// For two key keybindings
char secondKey;
@ -1538,20 +1646,40 @@ int main(int argc, char* argv[])
// Search using fzf
case KEY_SEARCHALL:
// Reallocate `temp_dir` to store fzf command
// Clear Image Preview (If Present)
clearImg();
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"cd \"%s\" && fzf", dir);
allocSize = snprintf(NULL,0,"%s/preview",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"cd \"%s\" && fzf",dir);
snprintf(temp_dir,allocSize+1,"%s/preview",cache_path);
// Execute fzf command and store output in buf
// Remove the preview file
remove(temp_dir);
// Create a child process to run command and store output in preview file
endwin();
buf = malloc(PATH_MAX);
if((fp = popen(temp_dir,"r")) == NULL)
pid = fork();
if( pid == 0 )
{
exit(0);
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
dup2(fd, 1);
chdir(dir);
execlp("fzf","fzf",(char *)0);
exit(1);
}
else
{
int status;
waitpid(pid,&status,0);
}
// Execute fzf command and store output in buf
buf = malloc(PATH_MAX);
fp = fopen(temp_dir, "r");
while(fgets(buf,PATH_MAX,fp) != NULL){}
fclose(fp);
// Allocate Memory to `path`
allocSize = snprintf(NULL, 0, "%s/%s",dir,buf);
@ -1584,28 +1712,60 @@ int main(int argc, char* argv[])
// Search in the same directory
case KEY_SEARCHDIR:
// Allocate Memory to `cmd`
if( hiddenFlag == 1 )
// Clear Image Preview (If Present)
clearImg();
// Reallocate `temp_dir` and store path to preview file
free(temp_dir);
allocSize = snprintf(NULL,0,"%s/preview",cache_path);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"%s/preview",cache_path);
// Remove the preview file
remove(temp_dir);
// Create a child process to run command and store output in preview file
endwin();
pipe(pfd);
pid = fork();
if( pid == 0 )
{
allocSize = snprintf(NULL,0,"cd \"%s\" && ls -a | fzf",dir);
cmd = malloc(allocSize+1);
snprintf(cmd,allocSize+1,"cd \"%s\" && ls -a | fzf",dir);
dup2(pfd[1], 1);
close(pfd[1]);
chdir(dir);
if( hiddenFlag == 1 )
execlp("ls","ls","-a",(char *)0);
else
execlp("ls","ls",(char *)0);
exit(1);
}
else
{
allocSize = snprintf(NULL,0,"cd \"%s\" && ls | fzf",dir);
cmd = malloc(allocSize+1);
snprintf(cmd,PATH_MAX,"cd \"%s\" && ls | fzf",dir);
int status;
waitpid(pid,&status,0);
close(pfd[1]);
pid = fork();
if(pid == 0)
{
fd = open(temp_dir, O_CREAT | O_WRONLY, 0755);
dup2(pfd[0],0);
dup2(fd, 1);
close(pfd[0]);
execlp("fzf","fzf",(char *)0);
exit(1);
}
else
{
waitpid(pid, &status, 0);
close(pfd[0]);
}
}
endwin();
// Allocate Memory to `buf` to store output of `cmd` command
// Allocate Memory to `buf` to store output of command
buf = malloc(PATH_MAX);
if((fp = popen(cmd,"r")) == NULL)
{
exit(0);
}
fp = fopen(temp_dir, "r");
while(fgets(buf,PATH_MAX,fp) != NULL){}
fclose(fp);
// Allocate Memory to `path` to store path selected file
allocSize = snprintf(NULL,0,"%s/%s",dir,buf);
@ -1629,7 +1789,6 @@ int main(int argc, char* argv[])
// Free Memory
free(buf);
free(path);
free(cmd);
// Set appropriate flags
selection = 0;
@ -1642,11 +1801,6 @@ int main(int argc, char* argv[])
case KEY_SHELL:
// Clear Image Preview (If Present)
clearImg();
// Reallocate `temp_dir`
free(temp_dir);
allocSize = snprintf(NULL, 0, "cd %s && bash", dir);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir, allocSize+1, "cd %s && bash", dir);
// End ncurses mode
endwin();
@ -1655,7 +1809,8 @@ int main(int argc, char* argv[])
pid = fork();
if( pid == 0 )
{
execl("/usr/bin/bash", "bash", "-c", temp_dir, (char *)0);
chdir(dir);
execlp("bash", "bash", "-i", (char *)0);
exit(1);
}
else
@ -1792,7 +1947,7 @@ int main(int argc, char* argv[])
pid = fork();
if( pid == 0 )
{
execl("/usr/bin/less", "less", clipboard_path, (char *)0);
execlp("less", "less", clipboard_path, (char *)0);
exit(1);
}
else
@ -1814,19 +1969,13 @@ int main(int argc, char* argv[])
// Exit curses mode to edit clipboard
endwin();
// Reallocate Memory to `temp_dir` to store full path of editor
free(temp_dir);
allocSize = snprintf(NULL,0,"/usr/bin/%s", editor);
temp_dir = malloc(allocSize+1);
snprintf(temp_dir,allocSize+1,"/usr/bin/%s", editor);
if( access( clipboard_path, F_OK ) != -1 )
{
// Create a child process to show clipboard
pid = fork();
if( pid == 0 )
{
execl(temp_dir, editor, clipboard_path, (char *)0);
execlp(editor, editor, clipboard_path, (char *)0);
exit(1);
}
else
@ -1846,6 +1995,7 @@ int main(int argc, char* argv[])
// View Preview
case KEY_INFO:
getVidPreview(next_dir,maxy,maxx/2+2);
clearFlagImg = 1;
break;
// Enable/Disable hidden files
@ -1858,6 +2008,11 @@ int main(int argc, char* argv[])
selection = 0;
break;
// View Preview
case KEY_PREVIEW:
viewPreview();
break;
// Run External Script
case KEY_SCRIPT:
len_scripts = getNumberofFiles(scripts_path);

5
config.h
Unescape View File

@ -13,7 +13,7 @@
#define SHOW_BORDERS 1
// Program used to open non-text file (Eg: `xdg-open` or `thunar`)
#define FILE_OPENER "/usr/bin/xdg-open"
#define FILE_OPENER "xdg-open"
// Display Image Script
#define DISPLAYIMG "/usr/local/bin/displayimg_uberzug"
@ -109,6 +109,9 @@
// External Scripts Key
#define KEY_SCRIPT 'p'
// View preview
#define KEY_PREVIEW 'I'
// Reload
#define KEY_RELOAD 'r'

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