Merge pull request 'pdf-by-filename' (#28) from pdf-by-filename-#27 into main

Implemented PDF dir:

+ now you can set a `pdf_path` variable in the config and throuch the CLI flag `--pdf-dir`
+ this dir will be searched recursivley for PDF files which mathc a citekey from the used `.bib` files and connects with them
+ every entry can have multiple PDFs with the citekey-basename in different subdirs
+ the bibfile itself will not be altered
+ additionally, i rewrote the internal popup code for easier contribution

1 files changed, 14 insertions, 5 deletions

diff --git a/src/cliargs.rs b/src/cliargs.rs
index d4fac46..04886d1 100644
--- a/src/cliargs.rs
+++ b/src/cliargs.rs
@@ -33,6 +33,7 @@ pub struct CLIArgs {
     pub pos_args: Vec<PathBuf>,
     pub cfg_path: Option<PathBuf>,
     pub light_theme: bool,
+    pub pdf_path: Option<PathBuf>,
 }
 
 impl CLIArgs {
@@ -55,6 +56,9 @@ impl CLIArgs {
                 Short('v') | Long("version") => args.versionarg = true,
                 Short('c') | Long("config-file") => args.cfg_path = Some(parser.value()?.parse()?),
                 Long("light-terminal") => args.light_theme = true,
+                Long("pdf-dir") => {
+                    args.pdf_path = Some(parser.value()?.parse()?);
+                }
                 // Value(pos_arg) => parse_files(&mut args, pos_arg),
                 Value(pos_arg) => args.pos_args.push(pos_arg.into()),
                 _ => return Err(arg.unexpected()),
@@ -122,11 +126,16 @@ POSITIONAL ARGS:
     Both can be passed multiple times
 
 FLAGS:
-    -h, --help          Show this help and exit
-    -v, --version       Show the version and exit
-    -c, --config-file   Path to config file used for current session.
-                        Takes precedence over standard config file.
-    --light-terminal    Enable color mode for light terminal background",
+    -h, --help                  Show this help and exit
+    -v, --version               Show the version and exit
+    -c, --config-file=<value>   Path to config file used for current session.
+                                Takes precedence over standard config file.
+    --light-terminal            Enable color mode for light terminal background
+    --pdf-dir=<value>           Use PDF files named by citekey at the given path and its
+                                subdirs as value for the `file` field of the entry matching
+                                the citekey for the current session.
+                                Does not overwrite or change the original file.
+                                (might not work with citekeys containing special chars)",
         env!("CARGO_PKG_NAME"),
         env!("CARGO_PKG_VERSION"),
     );